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Commit 359ea2f1 authored by Linus Torvalds's avatar Linus Torvalds
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Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

parents 960b8466 e1d5dea1
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arch/x86_64/Makefile
View file @ 359ea2f1
...@@ -65,7 +65,9 @@ CFLAGS += $(call cc-option,-mno-sse -mno-mmx -mno-sse2 -mno-3dnow,) ...@@ -65,7 +65,9 @@ CFLAGS += $(call cc-option,-mno-sse -mno-mmx -mno-sse2 -mno-3dnow,)
head-y := arch/x86_64/kernel/head.o arch/x86_64/kernel/head64.o arch/x86_64/kernel/init_task.o head-y := arch/x86_64/kernel/head.o arch/x86_64/kernel/head64.o arch/x86_64/kernel/init_task.o
libs-y += arch/x86_64/lib/ libs-y += arch/x86_64/lib/
core-y += arch/x86_64/kernel/ arch/x86_64/mm/ core-y += arch/x86_64/kernel/ \
arch/x86_64/mm/ \
arch/x86_64/crypto/
core-$(CONFIG_IA32_EMULATION) += arch/x86_64/ia32/ core-$(CONFIG_IA32_EMULATION) += arch/x86_64/ia32/
drivers-$(CONFIG_PCI) += arch/x86_64/pci/ drivers-$(CONFIG_PCI) += arch/x86_64/pci/
drivers-$(CONFIG_OPROFILE) += arch/x86_64/oprofile/ drivers-$(CONFIG_OPROFILE) += arch/x86_64/oprofile/
......
arch/x86_64/crypto/Makefile 0 → 100644
View file @ 359ea2f1
#
# x86_64/crypto/Makefile
#
# Arch-specific CryptoAPI modules.
#
obj-$(CONFIG_CRYPTO_AES_X86_64) += aes-x86_64.o
aes-x86_64-y := aes-x86_64-asm.o aes.o
arch/x86_64/crypto/aes-x86_64-asm.S 0 → 100644
View file @ 359ea2f1
/* AES (Rijndael) implementation (FIPS PUB 197) for x86_64
*
* Copyright (C) 2005 Andreas Steinmetz, <ast@domdv.de>
*
* License:
* This code can be distributed under the terms of the GNU General Public
* License (GPL) Version 2 provided that the above header down to and
* including this sentence is retained in full.
*/
.extern aes_ft_tab
.extern aes_it_tab
.extern aes_fl_tab
.extern aes_il_tab
.text
#define R1 %rax
#define R1E %eax
#define R1X %ax
#define R1H %ah
#define R1L %al
#define R2 %rbx
#define R2E %ebx
#define R2X %bx
#define R2H %bh
#define R2L %bl
#define R3 %rcx
#define R3E %ecx
#define R3X %cx
#define R3H %ch
#define R3L %cl
#define R4 %rdx
#define R4E %edx
#define R4X %dx
#define R4H %dh
#define R4L %dl
#define R5 %rsi
#define R5E %esi
#define R6 %rdi
#define R6E %edi
#define R7 %rbp
#define R7E %ebp
#define R8 %r8
#define R9 %r9
#define R10 %r10
#define R11 %r11
#define prologue(FUNC,BASE,B128,B192,r1,r2,r3,r4,r5,r6,r7,r8,r9,r10,r11) \
.global FUNC; \
.type FUNC,@function; \
.align 8; \
FUNC: movq r1,r2; \
movq r3,r4; \
leaq BASE+52(r8),r9; \
movq r10,r11; \
movl (r7),r5 ## E; \
movl 4(r7),r1 ## E; \
movl 8(r7),r6 ## E; \
movl 12(r7),r7 ## E; \
movl (r8),r10 ## E; \
xorl -48(r9),r5 ## E; \
xorl -44(r9),r1 ## E; \
xorl -40(r9),r6 ## E; \
xorl -36(r9),r7 ## E; \
cmpl $24,r10 ## E; \
jb B128; \
leaq 32(r9),r9; \
je B192; \
leaq 32(r9),r9;
#define epilogue(r1,r2,r3,r4,r5,r6,r7,r8,r9) \
movq r1,r2; \
movq r3,r4; \
movl r5 ## E,(r9); \
movl r6 ## E,4(r9); \
movl r7 ## E,8(r9); \
movl r8 ## E,12(r9); \
ret;
#define round(TAB,OFFSET,r1,r2,r3,r4,r5,r6,r7,r8,ra,rb,rc,rd) \
movzbl r2 ## H,r5 ## E; \
movzbl r2 ## L,r6 ## E; \
movl TAB+1024(,r5,4),r5 ## E;\
movw r4 ## X,r2 ## X; \
movl TAB(,r6,4),r6 ## E; \
roll $16,r2 ## E; \
shrl $16,r4 ## E; \
movzbl r4 ## H,r7 ## E; \
movzbl r4 ## L,r4 ## E; \
xorl OFFSET(r8),ra ## E; \
xorl OFFSET+4(r8),rb ## E; \
xorl TAB+3072(,r7,4),r5 ## E;\
xorl TAB+2048(,r4,4),r6 ## E;\
movzbl r1 ## L,r7 ## E; \
movzbl r1 ## H,r4 ## E; \
movl TAB+1024(,r4,4),r4 ## E;\
movw r3 ## X,r1 ## X; \
roll $16,r1 ## E; \
shrl $16,r3 ## E; \
xorl TAB(,r7,4),r5 ## E; \
movzbl r3 ## H,r7 ## E; \
movzbl r3 ## L,r3 ## E; \
xorl TAB+3072(,r7,4),r4 ## E;\
xorl TAB+2048(,r3,4),r5 ## E;\
movzbl r1 ## H,r7 ## E; \
movzbl r1 ## L,r3 ## E; \
shrl $16,r1 ## E; \
xorl TAB+3072(,r7,4),r6 ## E;\
movl TAB+2048(,r3,4),r3 ## E;\
movzbl r1 ## H,r7 ## E; \
movzbl r1 ## L,r1 ## E; \
xorl TAB+1024(,r7,4),r6 ## E;\
xorl TAB(,r1,4),r3 ## E; \
movzbl r2 ## H,r1 ## E; \
movzbl r2 ## L,r7 ## E; \
shrl $16,r2 ## E; \
xorl TAB+3072(,r1,4),r3 ## E;\
xorl TAB+2048(,r7,4),r4 ## E;\
movzbl r2 ## H,r1 ## E; \
movzbl r2 ## L,r2 ## E; \
xorl OFFSET+8(r8),rc ## E; \
xorl OFFSET+12(r8),rd ## E; \
xorl TAB+1024(,r1,4),r3 ## E;\
xorl TAB(,r2,4),r4 ## E;
#define move_regs(r1,r2,r3,r4) \
movl r3 ## E,r1 ## E; \
movl r4 ## E,r2 ## E;
#define entry(FUNC,BASE,B128,B192) \
prologue(FUNC,BASE,B128,B192,R2,R8,R7,R9,R1,R3,R4,R6,R10,R5,R11)
#define return epilogue(R8,R2,R9,R7,R5,R6,R3,R4,R11)
#define encrypt_round(TAB,OFFSET) \
round(TAB,OFFSET,R1,R2,R3,R4,R5,R6,R7,R10,R5,R6,R3,R4) \
move_regs(R1,R2,R5,R6)
#define encrypt_final(TAB,OFFSET) \
round(TAB,OFFSET,R1,R2,R3,R4,R5,R6,R7,R10,R5,R6,R3,R4)
#define decrypt_round(TAB,OFFSET) \
round(TAB,OFFSET,R2,R1,R4,R3,R6,R5,R7,R10,R5,R6,R3,R4) \
move_regs(R1,R2,R5,R6)
#define decrypt_final(TAB,OFFSET) \
round(TAB,OFFSET,R2,R1,R4,R3,R6,R5,R7,R10,R5,R6,R3,R4)
/* void aes_encrypt(void *ctx, u8 *out, const u8 *in) */
entry(aes_encrypt,0,enc128,enc192)
encrypt_round(aes_ft_tab,-96)
encrypt_round(aes_ft_tab,-80)
enc192: encrypt_round(aes_ft_tab,-64)
encrypt_round(aes_ft_tab,-48)
enc128: encrypt_round(aes_ft_tab,-32)
encrypt_round(aes_ft_tab,-16)
encrypt_round(aes_ft_tab, 0)
encrypt_round(aes_ft_tab, 16)
encrypt_round(aes_ft_tab, 32)
encrypt_round(aes_ft_tab, 48)
encrypt_round(aes_ft_tab, 64)
encrypt_round(aes_ft_tab, 80)
encrypt_round(aes_ft_tab, 96)
encrypt_final(aes_fl_tab,112)
return
/* void aes_decrypt(void *ctx, u8 *out, const u8 *in) */
entry(aes_decrypt,240,dec128,dec192)
decrypt_round(aes_it_tab,-96)
decrypt_round(aes_it_tab,-80)
dec192: decrypt_round(aes_it_tab,-64)
decrypt_round(aes_it_tab,-48)
dec128: decrypt_round(aes_it_tab,-32)
decrypt_round(aes_it_tab,-16)
decrypt_round(aes_it_tab, 0)
decrypt_round(aes_it_tab, 16)
decrypt_round(aes_it_tab, 32)
decrypt_round(aes_it_tab, 48)
decrypt_round(aes_it_tab, 64)
decrypt_round(aes_it_tab, 80)
decrypt_round(aes_it_tab, 96)
decrypt_final(aes_il_tab,112)
return
arch/x86_64/crypto/aes.c 0 → 100644
View file @ 359ea2f1
/*
* Cryptographic API.
*
* AES Cipher Algorithm.
*
* Based on Brian Gladman's code.
*
* Linux developers:
* Alexander Kjeldaas <astor@fast.no>
* Herbert Valerio Riedel <hvr@hvrlab.org>
* Kyle McMartin <kyle@debian.org>
* Adam J. Richter <adam@yggdrasil.com> (conversion to 2.5 API).
* Andreas Steinmetz <ast@domdv.de> (adapted to x86_64 assembler)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* ---------------------------------------------------------------------------
* Copyright (c) 2002, Dr Brian Gladman <brg@gladman.me.uk>, Worcester, UK.
* All rights reserved.
*
* LICENSE TERMS
*
* The free distribution and use of this software in both source and binary
* form is allowed (with or without changes) provided that:
*
* 1. distributions of this source code include the above copyright
* notice, this list of conditions and the following disclaimer;
*
* 2. distributions in binary form include the above copyright
* notice, this list of conditions and the following disclaimer
* in the documentation and/or other associated materials;
*
* 3. the copyright holder's name is not used to endorse products
* built using this software without specific written permission.
*
* ALTERNATIVELY, provided that this notice is retained in full, this product
* may be distributed under the terms of the GNU General Public License (GPL),
* in which case the provisions of the GPL apply INSTEAD OF those given above.
*
* DISCLAIMER
*
* This software is provided 'as is' with no explicit or implied warranties
* in respect of its properties, including, but not limited to, correctness
* and/or fitness for purpose.
* ---------------------------------------------------------------------------
*/
/* Some changes from the Gladman version:
s/RIJNDAEL(e_key)/E_KEY/g
s/RIJNDAEL(d_key)/D_KEY/g
*/
#include <asm/byteorder.h>
#include <linux/bitops.h>
#include <linux/crypto.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/types.h>
#define AES_MIN_KEY_SIZE 16
#define AES_MAX_KEY_SIZE 32
#define AES_BLOCK_SIZE 16
/*
* #define byte(x, nr) ((unsigned char)((x) >> (nr*8)))
*/
static inline u8 byte(const u32 x, const unsigned n)
{
return x >> (n << 3);
}
#define u32_in(x) le32_to_cpu(*(const __le32 *)(x))
struct aes_ctx
{
u32 key_length;
u32 E[60];
u32 D[60];
};
#define E_KEY ctx->E
#define D_KEY ctx->D
static u8 pow_tab[256] __initdata;
static u8 log_tab[256] __initdata;
static u8 sbx_tab[256] __initdata;
static u8 isb_tab[256] __initdata;
static u32 rco_tab[10];
u32 aes_ft_tab[4][256];
u32 aes_it_tab[4][256];
u32 aes_fl_tab[4][256];
u32 aes_il_tab[4][256];
static inline u8 f_mult(u8 a, u8 b)
{
u8 aa = log_tab[a], cc = aa + log_tab[b];
return pow_tab[cc + (cc < aa ? 1 : 0)];
}
#define ff_mult(a, b) (a && b ? f_mult(a, b) : 0)
#define ls_box(x) \
(aes_fl_tab[0][byte(x, 0)] ^ \
aes_fl_tab[1][byte(x, 1)] ^ \
aes_fl_tab[2][byte(x, 2)] ^ \
aes_fl_tab[3][byte(x, 3)])
static void __init gen_tabs(void)
{
u32 i, t;
u8 p, q;
/* log and power tables for GF(2**8) finite field with
0x011b as modular polynomial - the simplest primitive
root is 0x03, used here to generate the tables */
for (i = 0, p = 1; i < 256; ++i) {
pow_tab[i] = (u8)p;
log_tab[p] = (u8)i;
p ^= (p << 1) ^ (p & 0x80 ? 0x01b : 0);
}
log_tab[1] = 0;
for (i = 0, p = 1; i < 10; ++i) {
rco_tab[i] = p;
p = (p << 1) ^ (p & 0x80 ? 0x01b : 0);
}
for (i = 0; i < 256; ++i) {
p = (i ? pow_tab[255 - log_tab[i]] : 0);
q = ((p >> 7) | (p << 1)) ^ ((p >> 6) | (p << 2));
p ^= 0x63 ^ q ^ ((q >> 6) | (q << 2));
sbx_tab[i] = p;
isb_tab[p] = (u8)i;
}
for (i = 0; i < 256; ++i) {
p = sbx_tab[i];
t = p;
aes_fl_tab[0][i] = t;
aes_fl_tab[1][i] = rol32(t, 8);
aes_fl_tab[2][i] = rol32(t, 16);
aes_fl_tab[3][i] = rol32(t, 24);
t = ((u32)ff_mult(2, p)) |
((u32)p << 8) |
((u32)p << 16) | ((u32)ff_mult(3, p) << 24);
aes_ft_tab[0][i] = t;
aes_ft_tab[1][i] = rol32(t, 8);
aes_ft_tab[2][i] = rol32(t, 16);
aes_ft_tab[3][i] = rol32(t, 24);
p = isb_tab[i];
t = p;
aes_il_tab[0][i] = t;
aes_il_tab[1][i] = rol32(t, 8);
aes_il_tab[2][i] = rol32(t, 16);
aes_il_tab[3][i] = rol32(t, 24);
t = ((u32)ff_mult(14, p)) |
((u32)ff_mult(9, p) << 8) |
((u32)ff_mult(13, p) << 16) |
((u32)ff_mult(11, p) << 24);
aes_it_tab[0][i] = t;
aes_it_tab[1][i] = rol32(t, 8);
aes_it_tab[2][i] = rol32(t, 16);
aes_it_tab[3][i] = rol32(t, 24);
}
}
#define star_x(x) (((x) & 0x7f7f7f7f) << 1) ^ ((((x) & 0x80808080) >> 7) * 0x1b)
#define imix_col(y, x) \
u = star_x(x); \
v = star_x(u); \
w = star_x(v); \
t = w ^ (x); \
(y) = u ^ v ^ w; \
(y) ^= ror32(u ^ t, 8) ^ \
ror32(v ^ t, 16) ^ \
ror32(t, 24)
/* initialise the key schedule from the user supplied key */
#define loop4(i) \
{ \
t = ror32(t, 8); t = ls_box(t) ^ rco_tab[i]; \
t ^= E_KEY[4 * i]; E_KEY[4 * i + 4] = t; \
t ^= E_KEY[4 * i + 1]; E_KEY[4 * i + 5] = t; \
t ^= E_KEY[4 * i + 2]; E_KEY[4 * i + 6] = t; \
t ^= E_KEY[4 * i + 3]; E_KEY[4 * i + 7] = t; \
}
#define loop6(i) \
{ \
t = ror32(t, 8); t = ls_box(t) ^ rco_tab[i]; \
t ^= E_KEY[6 * i]; E_KEY[6 * i + 6] = t; \
t ^= E_KEY[6 * i + 1]; E_KEY[6 * i + 7] = t; \
t ^= E_KEY[6 * i + 2]; E_KEY[6 * i + 8] = t; \
t ^= E_KEY[6 * i + 3]; E_KEY[6 * i + 9] = t; \
t ^= E_KEY[6 * i + 4]; E_KEY[6 * i + 10] = t; \
t ^= E_KEY[6 * i + 5]; E_KEY[6 * i + 11] = t; \
}
#define loop8(i) \
{ \
t = ror32(t, 8); ; t = ls_box(t) ^ rco_tab[i]; \
t ^= E_KEY[8 * i]; E_KEY[8 * i + 8] = t; \
t ^= E_KEY[8 * i + 1]; E_KEY[8 * i + 9] = t; \
t ^= E_KEY[8 * i + 2]; E_KEY[8 * i + 10] = t; \
t ^= E_KEY[8 * i + 3]; E_KEY[8 * i + 11] = t; \
t = E_KEY[8 * i + 4] ^ ls_box(t); \
E_KEY[8 * i + 12] = t; \
t ^= E_KEY[8 * i + 5]; E_KEY[8 * i + 13] = t; \
t ^= E_KEY[8 * i + 6]; E_KEY[8 * i + 14] = t; \
t ^= E_KEY[8 * i + 7]; E_KEY[8 * i + 15] = t; \
}
static int aes_set_key(void *ctx_arg, const u8 *in_key, unsigned int key_len,
u32 *flags)
{
struct aes_ctx *ctx = ctx_arg;
u32 i, j, t, u, v, w;
if (key_len != 16 && key_len != 24 && key_len != 32) {
*flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
return -EINVAL;
}
ctx->key_length = key_len;
D_KEY[key_len + 24] = E_KEY[0] = u32_in(in_key);
D_KEY[key_len + 25] = E_KEY[1] = u32_in(in_key + 4);
D_KEY[key_len + 26] = E_KEY[2] = u32_in(in_key + 8);
D_KEY[key_len + 27] = E_KEY[3] = u32_in(in_key + 12);
switch (key_len) {
case 16:
t = E_KEY[3];
for (i = 0; i < 10; ++i)
loop4(i);
break;
case 24:
E_KEY[4] = u32_in(in_key + 16);
t = E_KEY[5] = u32_in(in_key + 20);
for (i = 0; i < 8; ++i)
loop6 (i);
break;
case 32:
E_KEY[4] = u32_in(in_key + 16);
E_KEY[5] = u32_in(in_key + 20);
E_KEY[6] = u32_in(in_key + 24);
t = E_KEY[7] = u32_in(in_key + 28);
for (i = 0; i < 7; ++i)
loop8(i);
break;
}
D_KEY[0] = E_KEY[key_len + 24];
D_KEY[1] = E_KEY[key_len + 25];
D_KEY[2] = E_KEY[key_len + 26];
D_KEY[3] = E_KEY[key_len + 27];
for (i = 4; i < key_len + 24; ++i) {
j = key_len + 24 - (i & ~3) + (i & 3);
imix_col(D_KEY[j], E_KEY[i]);
}
return 0;
}
extern void aes_encrypt(void *ctx_arg, u8 *out, const u8 *in);
extern void aes_decrypt(void *ctx_arg, u8 *out, const u8 *in);
static struct crypto_alg aes_alg = {
.cra_name = "aes",
.cra_flags = CRYPTO_ALG_TYPE_CIPHER,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct aes_ctx),
.cra_module = THIS_MODULE,
.cra_list = LIST_HEAD_INIT(aes_alg.cra_list),
.cra_u = {
.cipher = {
.cia_min_keysize = AES_MIN_KEY_SIZE,
.cia_max_keysize = AES_MAX_KEY_SIZE,
.cia_setkey = aes_set_key,
.cia_encrypt = aes_encrypt,
.cia_decrypt = aes_decrypt
}
}
};
static int __init aes_init(void)
{
gen_tabs();
return crypto_register_alg(&aes_alg);
}
static void __exit aes_fini(void)
{
crypto_unregister_alg(&aes_alg);
}
module_init(aes_init);
module_exit(aes_fini);
MODULE_DESCRIPTION("Rijndael (AES) Cipher Algorithm");
MODULE_LICENSE("GPL");
crypto/Kconfig
View file @ 359ea2f1
...@@ -146,7 +146,7 @@ config CRYPTO_SERPENT ...@@ -146,7 +146,7 @@ config CRYPTO_SERPENT
config CRYPTO_AES config CRYPTO_AES
tristate "AES cipher algorithms" tristate "AES cipher algorithms"
depends on CRYPTO && !((X86 || UML_X86) && !64BIT) depends on CRYPTO && !(X86 || UML_X86)
help help
AES cipher algorithms (FIPS-197). AES uses the Rijndael AES cipher algorithms (FIPS-197). AES uses the Rijndael
algorithm. algorithm.
...@@ -184,6 +184,26 @@ config CRYPTO_AES_586 ...@@ -184,6 +184,26 @@ config CRYPTO_AES_586
See <http://csrc.nist.gov/encryption/aes/> for more information. See <http://csrc.nist.gov/encryption/aes/> for more information.
config CRYPTO_AES_X86_64
tristate "AES cipher algorithms (x86_64)"
depends on CRYPTO && ((X86 || UML_X86) && 64BIT)
help
AES cipher algorithms (FIPS-197). AES uses the Rijndael
algorithm.
Rijndael appears to be consistently a very good performer in
both hardware and software across a wide range of computing
environments regardless of its use in feedback or non-feedback
modes. Its key setup time is excellent, and its key agility is
good. Rijndael's very low memory requirements make it very well
suited for restricted-space environments, in which it also
demonstrates excellent performance. Rijndael's operations are
among the easiest to defend against power and timing attacks.
The AES specifies three key sizes: 128, 192 and 256 bits
See <http://csrc.nist.gov/encryption/aes/> for more information.
config CRYPTO_CAST5 config CRYPTO_CAST5
tristate "CAST5 (CAST-128) cipher algorithm" tristate "CAST5 (CAST-128) cipher algorithm"
depends on CRYPTO depends on CRYPTO
......
crypto/api.c
View file @ 359ea2f1
...@@ -13,9 +13,12 @@ ...@@ -13,9 +13,12 @@
* any later version. * any later version.
* *
*/ */
#include <linux/compiler.h>
#include <linux/init.h> #include <linux/init.h>
#include <linux/crypto.h> #include <linux/crypto.h>
#include <linux/errno.h> #include <linux/errno.h>
#include <linux/kmod.h>
#include <linux/rwsem.h> #include <linux/rwsem.h>
#include <linux/slab.h> #include <linux/slab.h>
#include "internal.h" #include "internal.h"
...@@ -33,7 +36,7 @@ static inline void crypto_alg_put(struct crypto_alg *alg) ...@@ -33,7 +36,7 @@ static inline void crypto_alg_put(struct crypto_alg *alg)
module_put(alg->cra_module); module_put(alg->cra_module);
} }
struct crypto_alg *crypto_alg_lookup(const char *name) static struct crypto_alg *crypto_alg_lookup(const char *name)
{ {
struct crypto_alg *q, *alg = NULL; struct crypto_alg *q, *alg = NULL;
...@@ -54,6 +57,13 @@ struct crypto_alg *crypto_alg_lookup(const char *name) ...@@ -54,6 +57,13 @@ struct crypto_alg *crypto_alg_lookup(const char *name)
return alg; return alg;
} }
/* A far more intelligent version of this is planned. For now, just
* try an exact match on the name of the algorithm. */
static inline struct crypto_alg *crypto_alg_mod_lookup(const char *name)
{
return try_then_request_module(crypto_alg_lookup(name), name);
}
static int crypto_init_flags(struct crypto_tfm *tfm, u32 flags) static int crypto_init_flags(struct crypto_tfm *tfm, u32 flags)
{ {
tfm->crt_flags = 0; tfm->crt_flags = 0;
...@@ -117,20 +127,46 @@ static void crypto_exit_ops(struct crypto_tfm *tfm) ...@@ -117,20 +127,46 @@ static void crypto_exit_ops(struct crypto_tfm *tfm)
} }
} }
static unsigned int crypto_ctxsize(struct crypto_alg *alg, int flags)
{
unsigned int len;
switch (alg->cra_flags & CRYPTO_ALG_TYPE_MASK) {
default:
BUG();
case CRYPTO_ALG_TYPE_CIPHER:
len = crypto_cipher_ctxsize(alg, flags);
break;
case CRYPTO_ALG_TYPE_DIGEST:
len = crypto_digest_ctxsize(alg, flags);
break;
case CRYPTO_ALG_TYPE_COMPRESS:
len = crypto_compress_ctxsize(alg, flags);
break;
}
return len + alg->cra_alignmask;
}
struct crypto_tfm *crypto_alloc_tfm(const char *name, u32 flags) struct crypto_tfm *crypto_alloc_tfm(const char *name, u32 flags)
{ {
struct crypto_tfm *tfm = NULL; struct crypto_tfm *tfm = NULL;
struct crypto_alg *alg; struct crypto_alg *alg;
unsigned int tfm_size;
alg = crypto_alg_mod_lookup(name); alg = crypto_alg_mod_lookup(name);
if (alg == NULL) if (alg == NULL)
goto out; goto out;
tfm = kmalloc(sizeof(*tfm) + alg->cra_ctxsize, GFP_KERNEL); tfm_size = sizeof(*tfm) + crypto_ctxsize(alg, flags);
tfm = kmalloc(tfm_size, GFP_KERNEL);
if (tfm == NULL) if (tfm == NULL)
goto out_put; goto out_put;
memset(tfm, 0, sizeof(*tfm) + alg->cra_ctxsize); memset(tfm, 0, tfm_size);
tfm->__crt_alg = alg; tfm->__crt_alg = alg;
...@@ -155,8 +191,14 @@ struct crypto_tfm *crypto_alloc_tfm(const char *name, u32 flags) ...@@ -155,8 +191,14 @@ struct crypto_tfm *crypto_alloc_tfm(const char *name, u32 flags)
void crypto_free_tfm(struct crypto_tfm *tfm) void crypto_free_tfm(struct crypto_tfm *tfm)
{ {
struct crypto_alg *alg = tfm->__crt_alg; struct crypto_alg *alg;
int size = sizeof(*tfm) + alg->cra_ctxsize; int size;
if (unlikely(!tfm))
return;
alg = tfm->__crt_alg;
size = sizeof(*tfm) + alg->cra_ctxsize;
crypto_exit_ops(tfm); crypto_exit_ops(tfm);
crypto_alg_put(alg); crypto_alg_put(alg);
...@@ -168,6 +210,12 @@ int crypto_register_alg(struct crypto_alg *alg) ...@@ -168,6 +210,12 @@ int crypto_register_alg(struct crypto_alg *alg)
{ {
int ret = 0; int ret = 0;
struct crypto_alg *q; struct crypto_alg *q;
if (alg->cra_alignmask & (alg->cra_alignmask + 1))
return -EINVAL;
if (alg->cra_alignmask > PAGE_SIZE)
return -EINVAL;
down_write(&crypto_alg_sem); down_write(&crypto_alg_sem);
......
crypto/cipher.c
View file @ 359ea2f1
...@@ -4,6 +4,7 @@ ...@@ -4,6 +4,7 @@
* Cipher operations. * Cipher operations.
* *
* Copyright (c) 2002 James Morris <jmorris@intercode.com.au> * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
* Copyright (c) 2005 Herbert Xu <herbert@gondor.apana.org.au>
* *
* This program is free software; you can redistribute it and/or modify it * This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free * under the terms of the GNU General Public License as published by the Free
...@@ -22,10 +23,6 @@ ...@@ -22,10 +23,6 @@
#include "internal.h" #include "internal.h"
#include "scatterwalk.h" #include "scatterwalk.h"
typedef void (cryptfn_t)(void *, u8 *, const u8 *);
typedef void (procfn_t)(struct crypto_tfm *, u8 *,
u8*, cryptfn_t, void *);
static inline void xor_64(u8 *a, const u8 *b) static inline void xor_64(u8 *a, const u8 *b)
{ {
((u32 *)a)[0] ^= ((u32 *)b)[0]; ((u32 *)a)[0] ^= ((u32 *)b)[0];
...@@ -39,63 +36,70 @@ static inline void xor_128(u8 *a, const u8 *b) ...@@ -39,63 +36,70 @@ static inline void xor_128(u8 *a, const u8 *b)
((u32 *)a)[2] ^= ((u32 *)b)[2]; ((u32 *)a)[2] ^= ((u32 *)b)[2];
((u32 *)a)[3] ^= ((u32 *)b)[3]; ((u32 *)a)[3] ^= ((u32 *)b)[3];
} }
static inline void *prepare_src(struct scatter_walk *walk, int bsize, static unsigned int crypt_slow(const struct cipher_desc *desc,
void *tmp, int in_place) struct scatter_walk *in,
struct scatter_walk *out, unsigned int bsize)
{ {
void *src = walk->data; unsigned int alignmask = crypto_tfm_alg_alignmask(desc->tfm);
int n = bsize; u8 buffer[bsize * 2 + alignmask];
u8 *src = (u8 *)ALIGN((unsigned long)buffer, alignmask + 1);
u8 *dst = src + bsize;
unsigned int n;
if (unlikely(scatterwalk_across_pages(walk, bsize))) { n = scatterwalk_copychunks(src, in, bsize, 0);
src = tmp; scatterwalk_advance(in, n);
n = scatterwalk_copychunks(src, walk, bsize, 0);
} desc->prfn(desc, dst, src, bsize);
scatterwalk_advance(walk, n);
return src; n = scatterwalk_copychunks(dst, out, bsize, 1);
scatterwalk_advance(out, n);
return bsize;
} }
static inline void *prepare_dst(struct scatter_walk *walk, int bsize, static inline unsigned int crypt_fast(const struct cipher_desc *desc,
void *tmp, int in_place) struct scatter_walk *in,
struct scatter_walk *out,
unsigned int nbytes, u8 *tmp)
{ {
void *dst = walk->data; u8 *src, *dst;
if (unlikely(scatterwalk_across_pages(walk, bsize)) || in_place) src = in->data;
dst = scatterwalk_samebuf(in, out) ? src : out->data;
if (tmp) {
memcpy(tmp, in->data, nbytes);
src = tmp;
dst = tmp; dst = tmp;
return dst; }
}
static inline void complete_src(struct scatter_walk *walk, int bsize, nbytes = desc->prfn(desc, dst, src, nbytes);
void *src, int in_place)
{
}
static inline void complete_dst(struct scatter_walk *walk, int bsize, if (tmp)
void *dst, int in_place) memcpy(out->data, tmp, nbytes);
{
int n = bsize; scatterwalk_advance(in, nbytes);
scatterwalk_advance(out, nbytes);
if (unlikely(scatterwalk_across_pages(walk, bsize))) return nbytes;
n = scatterwalk_copychunks(dst, walk, bsize, 1);
else if (in_place)
memcpy(walk->data, dst, bsize);
scatterwalk_advance(walk, n);
} }
/* /*
* Generic encrypt/decrypt wrapper for ciphers, handles operations across * Generic encrypt/decrypt wrapper for ciphers, handles operations across
* multiple page boundaries by using temporary blocks. In user context, * multiple page boundaries by using temporary blocks. In user context,
* the kernel is given a chance to schedule us once per block. * the kernel is given a chance to schedule us once per page.
*/ */
static int crypt(struct crypto_tfm *tfm, static int crypt(const struct cipher_desc *desc,
struct scatterlist *dst, struct scatterlist *dst,
struct scatterlist *src, struct scatterlist *src,
unsigned int nbytes, cryptfn_t crfn, unsigned int nbytes)
procfn_t prfn, void *info)
{ {
struct scatter_walk walk_in, walk_out; struct scatter_walk walk_in, walk_out;
struct crypto_tfm *tfm = desc->tfm;
const unsigned int bsize = crypto_tfm_alg_blocksize(tfm); const unsigned int bsize = crypto_tfm_alg_blocksize(tfm);
u8 tmp_src[bsize]; unsigned int alignmask = crypto_tfm_alg_alignmask(tfm);
u8 tmp_dst[bsize]; unsigned long buffer = 0;
if (!nbytes) if (!nbytes)
return 0; return 0;
...@@ -109,64 +113,144 @@ static int crypt(struct crypto_tfm *tfm, ...@@ -109,64 +113,144 @@ static int crypt(struct crypto_tfm *tfm,
scatterwalk_start(&walk_out, dst); scatterwalk_start(&walk_out, dst);
for(;;) { for(;;) {
u8 *src_p, *dst_p; unsigned int n = nbytes;
int in_place; u8 *tmp = NULL;
if (!scatterwalk_aligned(&walk_in, alignmask) ||
!scatterwalk_aligned(&walk_out, alignmask)) {
if (!buffer) {
buffer = __get_free_page(GFP_ATOMIC);
if (!buffer)
n = 0;
}
tmp = (u8 *)buffer;
}
scatterwalk_map(&walk_in, 0); scatterwalk_map(&walk_in, 0);
scatterwalk_map(&walk_out, 1); scatterwalk_map(&walk_out, 1);
in_place = scatterwalk_samebuf(&walk_in, &walk_out); n = scatterwalk_clamp(&walk_in, n);
n = scatterwalk_clamp(&walk_out, n);
do {
src_p = prepare_src(&walk_in, bsize, tmp_src,
in_place);
dst_p = prepare_dst(&walk_out, bsize, tmp_dst,
in_place);
prfn(tfm, dst_p, src_p, crfn, info);
complete_src(&walk_in, bsize, src_p, in_place); if (likely(n >= bsize))
complete_dst(&walk_out, bsize, dst_p, in_place); n = crypt_fast(desc, &walk_in, &walk_out, n, tmp);
else
n = crypt_slow(desc, &walk_in, &walk_out, bsize);
nbytes -= bsize; nbytes -= n;
} while (nbytes &&
!scatterwalk_across_pages(&walk_in, bsize) &&
!scatterwalk_across_pages(&walk_out, bsize));
scatterwalk_done(&walk_in, 0, nbytes); scatterwalk_done(&walk_in, 0, nbytes);
scatterwalk_done(&walk_out, 1, nbytes); scatterwalk_done(&walk_out, 1, nbytes);
if (!nbytes) if (!nbytes)
return 0; break;
crypto_yield(tfm); crypto_yield(tfm);
} }
if (buffer)
free_page(buffer);
return 0;
} }
static void cbc_process_encrypt(struct crypto_tfm *tfm, u8 *dst, u8 *src, static int crypt_iv_unaligned(struct cipher_desc *desc,
cryptfn_t fn, void *info) struct scatterlist *dst,
struct scatterlist *src,
unsigned int nbytes)
{ {
u8 *iv = info; struct crypto_tfm *tfm = desc->tfm;
unsigned int alignmask = crypto_tfm_alg_alignmask(tfm);
u8 *iv = desc->info;
tfm->crt_u.cipher.cit_xor_block(iv, src); if (unlikely(((unsigned long)iv & alignmask))) {
fn(crypto_tfm_ctx(tfm), dst, iv); unsigned int ivsize = tfm->crt_cipher.cit_ivsize;
memcpy(iv, dst, crypto_tfm_alg_blocksize(tfm)); u8 buffer[ivsize + alignmask];
u8 *tmp = (u8 *)ALIGN((unsigned long)buffer, alignmask + 1);
int err;
desc->info = memcpy(tmp, iv, ivsize);
err = crypt(desc, dst, src, nbytes);
memcpy(iv, tmp, ivsize);
return err;
}
return crypt(desc, dst, src, nbytes);
} }
static void cbc_process_decrypt(struct crypto_tfm *tfm, u8 *dst, u8 *src, static unsigned int cbc_process_encrypt(const struct cipher_desc *desc,
cryptfn_t fn, void *info) u8 *dst, const u8 *src,
unsigned int nbytes)
{ {
u8 *iv = info; struct crypto_tfm *tfm = desc->tfm;
void (*xor)(u8 *, const u8 *) = tfm->crt_u.cipher.cit_xor_block;
int bsize = crypto_tfm_alg_blocksize(tfm);
void (*fn)(void *, u8 *, const u8 *) = desc->crfn;
u8 *iv = desc->info;
unsigned int done = 0;
do {
xor(iv, src);
fn(crypto_tfm_ctx(tfm), dst, iv);
memcpy(iv, dst, bsize);
fn(crypto_tfm_ctx(tfm), dst, src); src += bsize;
tfm->crt_u.cipher.cit_xor_block(dst, iv); dst += bsize;
memcpy(iv, src, crypto_tfm_alg_blocksize(tfm)); } while ((done += bsize) < nbytes);
return done;
} }
static void ecb_process(struct crypto_tfm *tfm, u8 *dst, u8 *src, static unsigned int cbc_process_decrypt(const struct cipher_desc *desc,
cryptfn_t fn, void *info) u8 *dst, const u8 *src,
unsigned int nbytes)
{ {
fn(crypto_tfm_ctx(tfm), dst, src); struct crypto_tfm *tfm = desc->tfm;
void (*xor)(u8 *, const u8 *) = tfm->crt_u.cipher.cit_xor_block;
int bsize = crypto_tfm_alg_blocksize(tfm);
u8 stack[src == dst ? bsize : 0];
u8 *buf = stack;
u8 **dst_p = src == dst ? &buf : &dst;
void (*fn)(void *, u8 *, const u8 *) = desc->crfn;
u8 *iv = desc->info;
unsigned int done = 0;
do {
u8 *tmp_dst = *dst_p;
fn(crypto_tfm_ctx(tfm), tmp_dst, src);
xor(tmp_dst, iv);
memcpy(iv, src, bsize);
if (tmp_dst != dst)
memcpy(dst, tmp_dst, bsize);
src += bsize;
dst += bsize;
} while ((done += bsize) < nbytes);
return done;
}
static unsigned int ecb_process(const struct cipher_desc *desc, u8 *dst,
const u8 *src, unsigned int nbytes)
{
struct crypto_tfm *tfm = desc->tfm;
int bsize = crypto_tfm_alg_blocksize(tfm);
void (*fn)(void *, u8 *, const u8 *) = desc->crfn;
unsigned int done = 0;
do {
fn(crypto_tfm_ctx(tfm), dst, src);
src += bsize;
dst += bsize;
} while ((done += bsize) < nbytes);
return done;
} }
static int setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen) static int setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen)
...@@ -185,9 +269,14 @@ static int ecb_encrypt(struct crypto_tfm *tfm, ...@@ -185,9 +269,14 @@ static int ecb_encrypt(struct crypto_tfm *tfm,
struct scatterlist *dst, struct scatterlist *dst,
struct scatterlist *src, unsigned int nbytes) struct scatterlist *src, unsigned int nbytes)
{ {
return crypt(tfm, dst, src, nbytes, struct cipher_desc desc;
tfm->__crt_alg->cra_cipher.cia_encrypt, struct cipher_alg *cipher = &tfm->__crt_alg->cra_cipher;
ecb_process, NULL);
desc.tfm = tfm;
desc.crfn = cipher->cia_encrypt;
desc.prfn = cipher->cia_encrypt_ecb ?: ecb_process;
return crypt(&desc, dst, src, nbytes);
} }
static int ecb_decrypt(struct crypto_tfm *tfm, static int ecb_decrypt(struct crypto_tfm *tfm,
...@@ -195,9 +284,14 @@ static int ecb_decrypt(struct crypto_tfm *tfm, ...@@ -195,9 +284,14 @@ static int ecb_decrypt(struct crypto_tfm *tfm,
struct scatterlist *src, struct scatterlist *src,
unsigned int nbytes) unsigned int nbytes)
{ {
return crypt(tfm, dst, src, nbytes, struct cipher_desc desc;
tfm->__crt_alg->cra_cipher.cia_decrypt, struct cipher_alg *cipher = &tfm->__crt_alg->cra_cipher;
ecb_process, NULL);
desc.tfm = tfm;
desc.crfn = cipher->cia_decrypt;
desc.prfn = cipher->cia_decrypt_ecb ?: ecb_process;
return crypt(&desc, dst, src, nbytes);
} }
static int cbc_encrypt(struct crypto_tfm *tfm, static int cbc_encrypt(struct crypto_tfm *tfm,
...@@ -205,9 +299,15 @@ static int cbc_encrypt(struct crypto_tfm *tfm, ...@@ -205,9 +299,15 @@ static int cbc_encrypt(struct crypto_tfm *tfm,
struct scatterlist *src, struct scatterlist *src,
unsigned int nbytes) unsigned int nbytes)
{ {
return crypt(tfm, dst, src, nbytes, struct cipher_desc desc;
tfm->__crt_alg->cra_cipher.cia_encrypt, struct cipher_alg *cipher = &tfm->__crt_alg->cra_cipher;
cbc_process_encrypt, tfm->crt_cipher.cit_iv);
desc.tfm = tfm;
desc.crfn = cipher->cia_encrypt;
desc.prfn = cipher->cia_encrypt_cbc ?: cbc_process_encrypt;
desc.info = tfm->crt_cipher.cit_iv;
return crypt(&desc, dst, src, nbytes);
} }
static int cbc_encrypt_iv(struct crypto_tfm *tfm, static int cbc_encrypt_iv(struct crypto_tfm *tfm,
...@@ -215,9 +315,15 @@ static int cbc_encrypt_iv(struct crypto_tfm *tfm, ...@@ -215,9 +315,15 @@ static int cbc_encrypt_iv(struct crypto_tfm *tfm,
struct scatterlist *src, struct scatterlist *src,
unsigned int nbytes, u8 *iv) unsigned int nbytes, u8 *iv)
{ {
return crypt(tfm, dst, src, nbytes, struct cipher_desc desc;
tfm->__crt_alg->cra_cipher.cia_encrypt, struct cipher_alg *cipher = &tfm->__crt_alg->cra_cipher;
cbc_process_encrypt, iv);
desc.tfm = tfm;
desc.crfn = cipher->cia_encrypt;
desc.prfn = cipher->cia_encrypt_cbc ?: cbc_process_encrypt;
desc.info = iv;
return crypt_iv_unaligned(&desc, dst, src, nbytes);
} }
static int cbc_decrypt(struct crypto_tfm *tfm, static int cbc_decrypt(struct crypto_tfm *tfm,
...@@ -225,9 +331,15 @@ static int cbc_decrypt(struct crypto_tfm *tfm, ...@@ -225,9 +331,15 @@ static int cbc_decrypt(struct crypto_tfm *tfm,
struct scatterlist *src, struct scatterlist *src,
unsigned int nbytes) unsigned int nbytes)
{ {
return crypt(tfm, dst, src, nbytes, struct cipher_desc desc;
tfm->__crt_alg->cra_cipher.cia_decrypt, struct cipher_alg *cipher = &tfm->__crt_alg->cra_cipher;
cbc_process_decrypt, tfm->crt_cipher.cit_iv);
desc.tfm = tfm;
desc.crfn = cipher->cia_decrypt;
desc.prfn = cipher->cia_decrypt_cbc ?: cbc_process_decrypt;
desc.info = tfm->crt_cipher.cit_iv;
return crypt(&desc, dst, src, nbytes);
} }
static int cbc_decrypt_iv(struct crypto_tfm *tfm, static int cbc_decrypt_iv(struct crypto_tfm *tfm,
...@@ -235,9 +347,15 @@ static int cbc_decrypt_iv(struct crypto_tfm *tfm, ...@@ -235,9 +347,15 @@ static int cbc_decrypt_iv(struct crypto_tfm *tfm,
struct scatterlist *src, struct scatterlist *src,
unsigned int nbytes, u8 *iv) unsigned int nbytes, u8 *iv)
{ {
return crypt(tfm, dst, src, nbytes, struct cipher_desc desc;
tfm->__crt_alg->cra_cipher.cia_decrypt, struct cipher_alg *cipher = &tfm->__crt_alg->cra_cipher;
cbc_process_decrypt, iv);
desc.tfm = tfm;
desc.crfn = cipher->cia_decrypt;
desc.prfn = cipher->cia_decrypt_cbc ?: cbc_process_decrypt;
desc.info = iv;
return crypt_iv_unaligned(&desc, dst, src, nbytes);
} }
static int nocrypt(struct crypto_tfm *tfm, static int nocrypt(struct crypto_tfm *tfm,
...@@ -306,6 +424,8 @@ int crypto_init_cipher_ops(struct crypto_tfm *tfm) ...@@ -306,6 +424,8 @@ int crypto_init_cipher_ops(struct crypto_tfm *tfm)
} }
if (ops->cit_mode == CRYPTO_TFM_MODE_CBC) { if (ops->cit_mode == CRYPTO_TFM_MODE_CBC) {
unsigned int align;
unsigned long addr;
switch (crypto_tfm_alg_blocksize(tfm)) { switch (crypto_tfm_alg_blocksize(tfm)) {
case 8: case 8:
...@@ -325,9 +445,11 @@ int crypto_init_cipher_ops(struct crypto_tfm *tfm) ...@@ -325,9 +445,11 @@ int crypto_init_cipher_ops(struct crypto_tfm *tfm)
} }
ops->cit_ivsize = crypto_tfm_alg_blocksize(tfm); ops->cit_ivsize = crypto_tfm_alg_blocksize(tfm);
ops->cit_iv = kmalloc(ops->cit_ivsize, GFP_KERNEL); align = crypto_tfm_alg_alignmask(tfm) + 1;
if (ops->cit_iv == NULL) addr = (unsigned long)crypto_tfm_ctx(tfm);
ret = -ENOMEM; addr = ALIGN(addr, align);
addr += ALIGN(tfm->__crt_alg->cra_ctxsize, align);
ops->cit_iv = (void *)addr;
} }
out: out:
...@@ -336,6 +458,4 @@ int crypto_init_cipher_ops(struct crypto_tfm *tfm) ...@@ -336,6 +458,4 @@ int crypto_init_cipher_ops(struct crypto_tfm *tfm)
void crypto_exit_cipher_ops(struct crypto_tfm *tfm) void crypto_exit_cipher_ops(struct crypto_tfm *tfm)
{ {
if (tfm->crt_cipher.cit_iv)
kfree(tfm->crt_cipher.cit_iv);
} }
crypto/des.c
View file @ 359ea2f1
/* /*
* Cryptographic API. * Cryptographic API.
* *
* DES & Triple DES EDE Cipher Algorithms. * DES & Triple DES EDE Cipher Algorithms.
* *
* Originally released as descore by Dana L. How <how@isl.stanford.edu>. * Copyright (c) 2005 Dag Arne Osvik <da@osvik.no>
* Modified by Raimar Falke <rf13@inf.tu-dresden.de> for the Linux-Kernel.
* Derived from Cryptoapi and Nettle implementations, adapted for in-place
* scatterlist interface. Changed LGPL to GPL per section 3 of the LGPL.
*
* Copyright (c) 1992 Dana L. How.
* Copyright (c) Raimar Falke <rf13@inf.tu-dresden.de>
* Copyright (c) Gisle Slensminde <gisle@ii.uib.no>
* Copyright (C) 2001 Niels Mller.
* Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
* *
* This program is free software; you can redistribute it and/or modify * This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by * it under the terms of the GNU General Public License as published by
...@@ -20,11 +11,11 @@ ...@@ -20,11 +11,11 @@
* (at your option) any later version. * (at your option) any later version.
* *
*/ */
#include <linux/bitops.h>
#include <linux/init.h> #include <linux/init.h>
#include <linux/module.h> #include <linux/module.h>
#include <linux/mm.h>
#include <linux/errno.h> #include <linux/errno.h>
#include <asm/scatterlist.h>
#include <linux/crypto.h> #include <linux/crypto.h>
#define DES_KEY_SIZE 8 #define DES_KEY_SIZE 8
...@@ -35,1157 +26,826 @@ ...@@ -35,1157 +26,826 @@
#define DES3_EDE_EXPKEY_WORDS (3 * DES_EXPKEY_WORDS) #define DES3_EDE_EXPKEY_WORDS (3 * DES_EXPKEY_WORDS)
#define DES3_EDE_BLOCK_SIZE DES_BLOCK_SIZE #define DES3_EDE_BLOCK_SIZE DES_BLOCK_SIZE
#define ROR(d,c,o) ((d) = (d) >> (c) | (d) << (o)) #define ROL(x, r) ((x) = rol32((x), (r)))
#define ROR(x, r) ((x) = ror32((x), (r)))
struct des_ctx { struct des_ctx {
u8 iv[DES_BLOCK_SIZE];
u32 expkey[DES_EXPKEY_WORDS]; u32 expkey[DES_EXPKEY_WORDS];
}; };
struct des3_ede_ctx { struct des3_ede_ctx {
u8 iv[DES_BLOCK_SIZE];
u32 expkey[DES3_EDE_EXPKEY_WORDS]; u32 expkey[DES3_EDE_EXPKEY_WORDS];
}; };
static const u32 des_keymap[] = { /* Lookup tables for key expansion */
0x02080008, 0x02082000, 0x00002008, 0x00000000,
0x02002000, 0x00080008, 0x02080000, 0x02082008, static const u8 pc1[256] = {
0x00000008, 0x02000000, 0x00082000, 0x00002008, 0x00, 0x00, 0x40, 0x04, 0x10, 0x10, 0x50, 0x14,
0x00082008, 0x02002008, 0x02000008, 0x02080000, 0x04, 0x40, 0x44, 0x44, 0x14, 0x50, 0x54, 0x54,
0x00002000, 0x00082008, 0x00080008, 0x02002000, 0x02, 0x02, 0x42, 0x06, 0x12, 0x12, 0x52, 0x16,
0x02082008, 0x02000008, 0x00000000, 0x00082000, 0x06, 0x42, 0x46, 0x46, 0x16, 0x52, 0x56, 0x56,
0x02000000, 0x00080000, 0x02002008, 0x02080008, 0x80, 0x08, 0xc0, 0x0c, 0x90, 0x18, 0xd0, 0x1c,
0x00080000, 0x00002000, 0x02082000, 0x00000008, 0x84, 0x48, 0xc4, 0x4c, 0x94, 0x58, 0xd4, 0x5c,
0x00080000, 0x00002000, 0x02000008, 0x02082008, 0x82, 0x0a, 0xc2, 0x0e, 0x92, 0x1a, 0xd2, 0x1e,
0x00002008, 0x02000000, 0x00000000, 0x00082000, 0x86, 0x4a, 0xc6, 0x4e, 0x96, 0x5a, 0xd6, 0x5e,
0x02080008, 0x02002008, 0x02002000, 0x00080008, 0x20, 0x20, 0x60, 0x24, 0x30, 0x30, 0x70, 0x34,
0x02082000, 0x00000008, 0x00080008, 0x02002000, 0x24, 0x60, 0x64, 0x64, 0x34, 0x70, 0x74, 0x74,
0x02082008, 0x00080000, 0x02080000, 0x02000008, 0x22, 0x22, 0x62, 0x26, 0x32, 0x32, 0x72, 0x36,
0x00082000, 0x00002008, 0x02002008, 0x02080000, 0x26, 0x62, 0x66, 0x66, 0x36, 0x72, 0x76, 0x76,
0x00000008, 0x02082000, 0x00082008, 0x00000000, 0xa0, 0x28, 0xe0, 0x2c, 0xb0, 0x38, 0xf0, 0x3c,
0x02000000, 0x02080008, 0x00002000, 0x00082008, 0xa4, 0x68, 0xe4, 0x6c, 0xb4, 0x78, 0xf4, 0x7c,
0xa2, 0x2a, 0xe2, 0x2e, 0xb2, 0x3a, 0xf2, 0x3e,
0x08000004, 0x00020004, 0x00000000, 0x08020200, 0xa6, 0x6a, 0xe6, 0x6e, 0xb6, 0x7a, 0xf6, 0x7e,
0x00020004, 0x00000200, 0x08000204, 0x00020000, 0x08, 0x80, 0x48, 0x84, 0x18, 0x90, 0x58, 0x94,
0x00000204, 0x08020204, 0x00020200, 0x08000000, 0x0c, 0xc0, 0x4c, 0xc4, 0x1c, 0xd0, 0x5c, 0xd4,
0x08000200, 0x08000004, 0x08020000, 0x00020204, 0x0a, 0x82, 0x4a, 0x86, 0x1a, 0x92, 0x5a, 0x96,
0x00020000, 0x08000204, 0x08020004, 0x00000000, 0x0e, 0xc2, 0x4e, 0xc6, 0x1e, 0xd2, 0x5e, 0xd6,
0x00000200, 0x00000004, 0x08020200, 0x08020004, 0x88, 0x88, 0xc8, 0x8c, 0x98, 0x98, 0xd8, 0x9c,
0x08020204, 0x08020000, 0x08000000, 0x00000204, 0x8c, 0xc8, 0xcc, 0xcc, 0x9c, 0xd8, 0xdc, 0xdc,
0x00000004, 0x00020200, 0x00020204, 0x08000200, 0x8a, 0x8a, 0xca, 0x8e, 0x9a, 0x9a, 0xda, 0x9e,
0x00000204, 0x08000000, 0x08000200, 0x00020204, 0x8e, 0xca, 0xce, 0xce, 0x9e, 0xda, 0xde, 0xde,
0x08020200, 0x00020004, 0x00000000, 0x08000200, 0x28, 0xa0, 0x68, 0xa4, 0x38, 0xb0, 0x78, 0xb4,
0x08000000, 0x00000200, 0x08020004, 0x00020000, 0x2c, 0xe0, 0x6c, 0xe4, 0x3c, 0xf0, 0x7c, 0xf4,
0x00020004, 0x08020204, 0x00020200, 0x00000004, 0x2a, 0xa2, 0x6a, 0xa6, 0x3a, 0xb2, 0x7a, 0xb6,
0x08020204, 0x00020200, 0x00020000, 0x08000204, 0x2e, 0xe2, 0x6e, 0xe6, 0x3e, 0xf2, 0x7e, 0xf6,
0x08000004, 0x08020000, 0x00020204, 0x00000000, 0xa8, 0xa8, 0xe8, 0xac, 0xb8, 0xb8, 0xf8, 0xbc,
0x00000200, 0x08000004, 0x08000204, 0x08020200, 0xac, 0xe8, 0xec, 0xec, 0xbc, 0xf8, 0xfc, 0xfc,
0x08020000, 0x00000204, 0x00000004, 0x08020004, 0xaa, 0xaa, 0xea, 0xae, 0xba, 0xba, 0xfa, 0xbe,
0xae, 0xea, 0xee, 0xee, 0xbe, 0xfa, 0xfe, 0xfe
0x80040100, 0x01000100, 0x80000000, 0x81040100,
0x00000000, 0x01040000, 0x81000100, 0x80040000,
0x01040100, 0x81000000, 0x01000000, 0x80000100,
0x81000000, 0x80040100, 0x00040000, 0x01000000,
0x81040000, 0x00040100, 0x00000100, 0x80000000,
0x00040100, 0x81000100, 0x01040000, 0x00000100,
0x80000100, 0x00000000, 0x80040000, 0x01040100,
0x01000100, 0x81040000, 0x81040100, 0x00040000,
0x81040000, 0x80000100, 0x00040000, 0x81000000,
0x00040100, 0x01000100, 0x80000000, 0x01040000,
0x81000100, 0x00000000, 0x00000100, 0x80040000,
0x00000000, 0x81040000, 0x01040100, 0x00000100,
0x01000000, 0x81040100, 0x80040100, 0x00040000,
0x81040100, 0x80000000, 0x01000100, 0x80040100,
0x80040000, 0x00040100, 0x01040000, 0x81000100,
0x80000100, 0x01000000, 0x81000000, 0x01040100,
0x04010801, 0x00000000, 0x00010800, 0x04010000,
0x04000001, 0x00000801, 0x04000800, 0x00010800,
0x00000800, 0x04010001, 0x00000001, 0x04000800,
0x00010001, 0x04010800, 0x04010000, 0x00000001,
0x00010000, 0x04000801, 0x04010001, 0x00000800,
0x00010801, 0x04000000, 0x00000000, 0x00010001,
0x04000801, 0x00010801, 0x04010800, 0x04000001,
0x04000000, 0x00010000, 0x00000801, 0x04010801,
0x00010001, 0x04010800, 0x04000800, 0x00010801,
0x04010801, 0x00010001, 0x04000001, 0x00000000,
0x04000000, 0x00000801, 0x00010000, 0x04010001,
0x00000800, 0x04000000, 0x00010801, 0x04000801,
0x04010800, 0x00000800, 0x00000000, 0x04000001,
0x00000001, 0x04010801, 0x00010800, 0x04010000,
0x04010001, 0x00010000, 0x00000801, 0x04000800,
0x04000801, 0x00000001, 0x04010000, 0x00010800,
0x00000400, 0x00000020, 0x00100020, 0x40100000,
0x40100420, 0x40000400, 0x00000420, 0x00000000,
0x00100000, 0x40100020, 0x40000020, 0x00100400,
0x40000000, 0x00100420, 0x00100400, 0x40000020,
0x40100020, 0x00000400, 0x40000400, 0x40100420,
0x00000000, 0x00100020, 0x40100000, 0x00000420,
0x40100400, 0x40000420, 0x00100420, 0x40000000,
0x40000420, 0x40100400, 0x00000020, 0x00100000,
0x40000420, 0x00100400, 0x40100400, 0x40000020,
0x00000400, 0x00000020, 0x00100000, 0x40100400,
0x40100020, 0x40000420, 0x00000420, 0x00000000,
0x00000020, 0x40100000, 0x40000000, 0x00100020,
0x00000000, 0x40100020, 0x00100020, 0x00000420,
0x40000020, 0x00000400, 0x40100420, 0x00100000,
0x00100420, 0x40000000, 0x40000400, 0x40100420,
0x40100000, 0x00100420, 0x00100400, 0x40000400,
0x00800000, 0x00001000, 0x00000040, 0x00801042,
0x00801002, 0x00800040, 0x00001042, 0x00801000,
0x00001000, 0x00000002, 0x00800002, 0x00001040,
0x00800042, 0x00801002, 0x00801040, 0x00000000,
0x00001040, 0x00800000, 0x00001002, 0x00000042,
0x00800040, 0x00001042, 0x00000000, 0x00800002,
0x00000002, 0x00800042, 0x00801042, 0x00001002,
0x00801000, 0x00000040, 0x00000042, 0x00801040,
0x00801040, 0x00800042, 0x00001002, 0x00801000,
0x00001000, 0x00000002, 0x00800002, 0x00800040,
0x00800000, 0x00001040, 0x00801042, 0x00000000,
0x00001042, 0x00800000, 0x00000040, 0x00001002,
0x00800042, 0x00000040, 0x00000000, 0x00801042,
0x00801002, 0x00801040, 0x00000042, 0x00001000,
0x00001040, 0x00801002, 0x00800040, 0x00000042,
0x00000002, 0x00001042, 0x00801000, 0x00800002,
0x10400000, 0x00404010, 0x00000010, 0x10400010,
0x10004000, 0x00400000, 0x10400010, 0x00004010,
0x00400010, 0x00004000, 0x00404000, 0x10000000,
0x10404010, 0x10000010, 0x10000000, 0x10404000,
0x00000000, 0x10004000, 0x00404010, 0x00000010,
0x10000010, 0x10404010, 0x00004000, 0x10400000,
0x10404000, 0x00400010, 0x10004010, 0x00404000,
0x00004010, 0x00000000, 0x00400000, 0x10004010,
0x00404010, 0x00000010, 0x10000000, 0x00004000,
0x10000010, 0x10004000, 0x00404000, 0x10400010,
0x00000000, 0x00404010, 0x00004010, 0x10404000,
0x10004000, 0x00400000, 0x10404010, 0x10000000,
0x10004010, 0x10400000, 0x00400000, 0x10404010,
0x00004000, 0x00400010, 0x10400010, 0x00004010,
0x00400010, 0x00000000, 0x10404000, 0x10000010,
0x10400000, 0x10004010, 0x00000010, 0x00404000,
0x00208080, 0x00008000, 0x20200000, 0x20208080,
0x00200000, 0x20008080, 0x20008000, 0x20200000,
0x20008080, 0x00208080, 0x00208000, 0x20000080,
0x20200080, 0x00200000, 0x00000000, 0x20008000,
0x00008000, 0x20000000, 0x00200080, 0x00008080,
0x20208080, 0x00208000, 0x20000080, 0x00200080,
0x20000000, 0x00000080, 0x00008080, 0x20208000,
0x00000080, 0x20200080, 0x20208000, 0x00000000,
0x00000000, 0x20208080, 0x00200080, 0x20008000,
0x00208080, 0x00008000, 0x20000080, 0x00200080,
0x20208000, 0x00000080, 0x00008080, 0x20200000,
0x20008080, 0x20000000, 0x20200000, 0x00208000,
0x20208080, 0x00008080, 0x00208000, 0x20200080,
0x00200000, 0x20000080, 0x20008000, 0x00000000,
0x00008000, 0x00200000, 0x20200080, 0x00208080,
0x20000000, 0x20208000, 0x00000080, 0x20008080,
}; };
static const u8 rotors[] = { static const u8 rs[256] = {
34, 13, 5, 46, 47, 18, 32, 41, 11, 53, 33, 20, 0x00, 0x00, 0x80, 0x80, 0x02, 0x02, 0x82, 0x82,
14, 36, 30, 24, 49, 2, 15, 37, 42, 50, 0, 21, 0x04, 0x04, 0x84, 0x84, 0x06, 0x06, 0x86, 0x86,
38, 48, 6, 26, 39, 4, 52, 25, 12, 27, 31, 40, 0x08, 0x08, 0x88, 0x88, 0x0a, 0x0a, 0x8a, 0x8a,
1, 17, 28, 29, 23, 51, 35, 7, 3, 22, 9, 43, 0x0c, 0x0c, 0x8c, 0x8c, 0x0e, 0x0e, 0x8e, 0x8e,
0x10, 0x10, 0x90, 0x90, 0x12, 0x12, 0x92, 0x92,
41, 20, 12, 53, 54, 25, 39, 48, 18, 31, 40, 27, 0x14, 0x14, 0x94, 0x94, 0x16, 0x16, 0x96, 0x96,
21, 43, 37, 0, 1, 9, 22, 44, 49, 2, 7, 28, 0x18, 0x18, 0x98, 0x98, 0x1a, 0x1a, 0x9a, 0x9a,
45, 55, 13, 33, 46, 11, 6, 32, 19, 34, 38, 47, 0x1c, 0x1c, 0x9c, 0x9c, 0x1e, 0x1e, 0x9e, 0x9e,
8, 24, 35, 36, 30, 3, 42, 14, 10, 29, 16, 50, 0x20, 0x20, 0xa0, 0xa0, 0x22, 0x22, 0xa2, 0xa2,
0x24, 0x24, 0xa4, 0xa4, 0x26, 0x26, 0xa6, 0xa6,
55, 34, 26, 38, 11, 39, 53, 5, 32, 45, 54, 41, 0x28, 0x28, 0xa8, 0xa8, 0x2a, 0x2a, 0xaa, 0xaa,
35, 2, 51, 14, 15, 23, 36, 3, 8, 16, 21, 42, 0x2c, 0x2c, 0xac, 0xac, 0x2e, 0x2e, 0xae, 0xae,
6, 12, 27, 47, 31, 25, 20, 46, 33, 48, 52, 4, 0x30, 0x30, 0xb0, 0xb0, 0x32, 0x32, 0xb2, 0xb2,
22, 7, 49, 50, 44, 17, 1, 28, 24, 43, 30, 9, 0x34, 0x34, 0xb4, 0xb4, 0x36, 0x36, 0xb6, 0xb6,
0x38, 0x38, 0xb8, 0xb8, 0x3a, 0x3a, 0xba, 0xba,
12, 48, 40, 52, 25, 53, 38, 19, 46, 6, 11, 55, 0x3c, 0x3c, 0xbc, 0xbc, 0x3e, 0x3e, 0xbe, 0xbe,
49, 16, 10, 28, 29, 37, 50, 17, 22, 30, 35, 1, 0x40, 0x40, 0xc0, 0xc0, 0x42, 0x42, 0xc2, 0xc2,
20, 26, 41, 4, 45, 39, 34, 31, 47, 5, 13, 18, 0x44, 0x44, 0xc4, 0xc4, 0x46, 0x46, 0xc6, 0xc6,
36, 21, 8, 9, 3, 0, 15, 42, 7, 2, 44, 23, 0x48, 0x48, 0xc8, 0xc8, 0x4a, 0x4a, 0xca, 0xca,
0x4c, 0x4c, 0xcc, 0xcc, 0x4e, 0x4e, 0xce, 0xce,
26, 5, 54, 13, 39, 38, 52, 33, 31, 20, 25, 12, 0x50, 0x50, 0xd0, 0xd0, 0x52, 0x52, 0xd2, 0xd2,
8, 30, 24, 42, 43, 51, 9, 0, 36, 44, 49, 15, 0x54, 0x54, 0xd4, 0xd4, 0x56, 0x56, 0xd6, 0xd6,
34, 40, 55, 18, 6, 53, 48, 45, 4, 19, 27, 32, 0x58, 0x58, 0xd8, 0xd8, 0x5a, 0x5a, 0xda, 0xda,
50, 35, 22, 23, 17, 14, 29, 1, 21, 16, 3, 37, 0x5c, 0x5c, 0xdc, 0xdc, 0x5e, 0x5e, 0xde, 0xde,
0x60, 0x60, 0xe0, 0xe0, 0x62, 0x62, 0xe2, 0xe2,
40, 19, 11, 27, 53, 52, 13, 47, 45, 34, 39, 26, 0x64, 0x64, 0xe4, 0xe4, 0x66, 0x66, 0xe6, 0xe6,
22, 44, 7, 1, 2, 10, 23, 14, 50, 3, 8, 29, 0x68, 0x68, 0xe8, 0xe8, 0x6a, 0x6a, 0xea, 0xea,
48, 54, 12, 32, 20, 38, 5, 6, 18, 33, 41, 46, 0x6c, 0x6c, 0xec, 0xec, 0x6e, 0x6e, 0xee, 0xee,
9, 49, 36, 37, 0, 28, 43, 15, 35, 30, 17, 51, 0x70, 0x70, 0xf0, 0xf0, 0x72, 0x72, 0xf2, 0xf2,
0x74, 0x74, 0xf4, 0xf4, 0x76, 0x76, 0xf6, 0xf6,
54, 33, 25, 41, 38, 13, 27, 4, 6, 48, 53, 40, 0x78, 0x78, 0xf8, 0xf8, 0x7a, 0x7a, 0xfa, 0xfa,
36, 3, 21, 15, 16, 24, 37, 28, 9, 17, 22, 43, 0x7c, 0x7c, 0xfc, 0xfc, 0x7e, 0x7e, 0xfe, 0xfe
5, 11, 26, 46, 34, 52, 19, 20, 32, 47, 55, 31,
23, 8, 50, 51, 14, 42, 2, 29, 49, 44, 0, 10,
11, 47, 39, 55, 52, 27, 41, 18, 20, 5, 38, 54,
50, 17, 35, 29, 30, 7, 51, 42, 23, 0, 36, 2,
19, 25, 40, 31, 48, 13, 33, 34, 46, 4, 12, 45,
37, 22, 9, 10, 28, 1, 16, 43, 8, 3, 14, 24,
18, 54, 46, 5, 6, 34, 48, 25, 27, 12, 45, 4,
2, 24, 42, 36, 37, 14, 3, 49, 30, 7, 43, 9,
26, 32, 47, 38, 55, 20, 40, 41, 53, 11, 19, 52,
44, 29, 16, 17, 35, 8, 23, 50, 15, 10, 21, 0,
32, 11, 31, 19, 20, 48, 5, 39, 41, 26, 6, 18,
16, 7, 1, 50, 51, 28, 17, 8, 44, 21, 2, 23,
40, 46, 4, 52, 12, 34, 54, 55, 38, 25, 33, 13,
3, 43, 30, 0, 49, 22, 37, 9, 29, 24, 35, 14,
46, 25, 45, 33, 34, 5, 19, 53, 55, 40, 20, 32,
30, 21, 15, 9, 10, 42, 0, 22, 3, 35, 16, 37,
54, 31, 18, 13, 26, 48, 11, 12, 52, 39, 47, 27,
17, 2, 44, 14, 8, 36, 51, 23, 43, 7, 49, 28,
31, 39, 6, 47, 48, 19, 33, 38, 12, 54, 34, 46,
44, 35, 29, 23, 24, 1, 14, 36, 17, 49, 30, 51,
11, 45, 32, 27, 40, 5, 25, 26, 13, 53, 4, 41,
0, 16, 3, 28, 22, 50, 10, 37, 2, 21, 8, 42,
45, 53, 20, 4, 5, 33, 47, 52, 26, 11, 48, 31,
3, 49, 43, 37, 7, 15, 28, 50, 0, 8, 44, 10,
25, 6, 46, 41, 54, 19, 39, 40, 27, 38, 18, 55,
14, 30, 17, 42, 36, 9, 24, 51, 16, 35, 22, 1,
6, 38, 34, 18, 19, 47, 4, 13, 40, 25, 5, 45,
17, 8, 2, 51, 21, 29, 42, 9, 14, 22, 3, 24,
39, 20, 31, 55, 11, 33, 53, 54, 41, 52, 32, 12,
28, 44, 0, 1, 50, 23, 7, 10, 30, 49, 36, 15,
20, 52, 48, 32, 33, 4, 18, 27, 54, 39, 19, 6,
0, 22, 16, 10, 35, 43, 1, 23, 28, 36, 17, 7,
53, 34, 45, 12, 25, 47, 38, 11, 55, 13, 46, 26,
42, 3, 14, 15, 9, 37, 21, 24, 44, 8, 50, 29,
27, 6, 55, 39, 40, 11, 25, 34, 4, 46, 26, 13,
7, 29, 23, 17, 42, 50, 8, 30, 35, 43, 24, 14,
31, 41, 52, 19, 32, 54, 45, 18, 5, 20, 53, 33,
49, 10, 21, 22, 16, 44, 28, 0, 51, 15, 2, 36,
}; };
static const u8 parity[] = { static const u32 pc2[1024] = {
8,1,0,8,0,8,8,0,0,8,8,0,8,0,2,8,0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,3, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8, 0x00040000, 0x00000000, 0x04000000, 0x00100000,
0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8, 0x00400000, 0x00000008, 0x00000800, 0x40000000,
8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0, 0x00440000, 0x00000008, 0x04000800, 0x40100000,
0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8, 0x00000400, 0x00000020, 0x08000000, 0x00000100,
8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0, 0x00040400, 0x00000020, 0x0c000000, 0x00100100,
8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0, 0x00400400, 0x00000028, 0x08000800, 0x40000100,
4,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,8,5,0,8,0,8,8,0,0,8,8,0,8,0,6,8, 0x00440400, 0x00000028, 0x0c000800, 0x40100100,
0x80000000, 0x00000010, 0x00000000, 0x00800000,
0x80040000, 0x00000010, 0x04000000, 0x00900000,
0x80400000, 0x00000018, 0x00000800, 0x40800000,
0x80440000, 0x00000018, 0x04000800, 0x40900000,
0x80000400, 0x00000030, 0x08000000, 0x00800100,
0x80040400, 0x00000030, 0x0c000000, 0x00900100,
0x80400400, 0x00000038, 0x08000800, 0x40800100,
0x80440400, 0x00000038, 0x0c000800, 0x40900100,
0x10000000, 0x00000000, 0x00200000, 0x00001000,
0x10040000, 0x00000000, 0x04200000, 0x00101000,
0x10400000, 0x00000008, 0x00200800, 0x40001000,
0x10440000, 0x00000008, 0x04200800, 0x40101000,
0x10000400, 0x00000020, 0x08200000, 0x00001100,
0x10040400, 0x00000020, 0x0c200000, 0x00101100,
0x10400400, 0x00000028, 0x08200800, 0x40001100,
0x10440400, 0x00000028, 0x0c200800, 0x40101100,
0x90000000, 0x00000010, 0x00200000, 0x00801000,
0x90040000, 0x00000010, 0x04200000, 0x00901000,
0x90400000, 0x00000018, 0x00200800, 0x40801000,
0x90440000, 0x00000018, 0x04200800, 0x40901000,
0x90000400, 0x00000030, 0x08200000, 0x00801100,
0x90040400, 0x00000030, 0x0c200000, 0x00901100,
0x90400400, 0x00000038, 0x08200800, 0x40801100,
0x90440400, 0x00000038, 0x0c200800, 0x40901100,
0x00000200, 0x00080000, 0x00000000, 0x00000004,
0x00040200, 0x00080000, 0x04000000, 0x00100004,
0x00400200, 0x00080008, 0x00000800, 0x40000004,
0x00440200, 0x00080008, 0x04000800, 0x40100004,
0x00000600, 0x00080020, 0x08000000, 0x00000104,
0x00040600, 0x00080020, 0x0c000000, 0x00100104,
0x00400600, 0x00080028, 0x08000800, 0x40000104,
0x00440600, 0x00080028, 0x0c000800, 0x40100104,
0x80000200, 0x00080010, 0x00000000, 0x00800004,
0x80040200, 0x00080010, 0x04000000, 0x00900004,
0x80400200, 0x00080018, 0x00000800, 0x40800004,
0x80440200, 0x00080018, 0x04000800, 0x40900004,
0x80000600, 0x00080030, 0x08000000, 0x00800104,
0x80040600, 0x00080030, 0x0c000000, 0x00900104,
0x80400600, 0x00080038, 0x08000800, 0x40800104,
0x80440600, 0x00080038, 0x0c000800, 0x40900104,
0x10000200, 0x00080000, 0x00200000, 0x00001004,
0x10040200, 0x00080000, 0x04200000, 0x00101004,
0x10400200, 0x00080008, 0x00200800, 0x40001004,
0x10440200, 0x00080008, 0x04200800, 0x40101004,
0x10000600, 0x00080020, 0x08200000, 0x00001104,
0x10040600, 0x00080020, 0x0c200000, 0x00101104,
0x10400600, 0x00080028, 0x08200800, 0x40001104,
0x10440600, 0x00080028, 0x0c200800, 0x40101104,
0x90000200, 0x00080010, 0x00200000, 0x00801004,
0x90040200, 0x00080010, 0x04200000, 0x00901004,
0x90400200, 0x00080018, 0x00200800, 0x40801004,
0x90440200, 0x00080018, 0x04200800, 0x40901004,
0x90000600, 0x00080030, 0x08200000, 0x00801104,
0x90040600, 0x00080030, 0x0c200000, 0x00901104,
0x90400600, 0x00080038, 0x08200800, 0x40801104,
0x90440600, 0x00080038, 0x0c200800, 0x40901104,
0x00000002, 0x00002000, 0x20000000, 0x00000001,
0x00040002, 0x00002000, 0x24000000, 0x00100001,
0x00400002, 0x00002008, 0x20000800, 0x40000001,
0x00440002, 0x00002008, 0x24000800, 0x40100001,
0x00000402, 0x00002020, 0x28000000, 0x00000101,
0x00040402, 0x00002020, 0x2c000000, 0x00100101,
0x00400402, 0x00002028, 0x28000800, 0x40000101,
0x00440402, 0x00002028, 0x2c000800, 0x40100101,
0x80000002, 0x00002010, 0x20000000, 0x00800001,
0x80040002, 0x00002010, 0x24000000, 0x00900001,
0x80400002, 0x00002018, 0x20000800, 0x40800001,
0x80440002, 0x00002018, 0x24000800, 0x40900001,
0x80000402, 0x00002030, 0x28000000, 0x00800101,
0x80040402, 0x00002030, 0x2c000000, 0x00900101,
0x80400402, 0x00002038, 0x28000800, 0x40800101,
0x80440402, 0x00002038, 0x2c000800, 0x40900101,
0x10000002, 0x00002000, 0x20200000, 0x00001001,
0x10040002, 0x00002000, 0x24200000, 0x00101001,
0x10400002, 0x00002008, 0x20200800, 0x40001001,
0x10440002, 0x00002008, 0x24200800, 0x40101001,
0x10000402, 0x00002020, 0x28200000, 0x00001101,
0x10040402, 0x00002020, 0x2c200000, 0x00101101,
0x10400402, 0x00002028, 0x28200800, 0x40001101,
0x10440402, 0x00002028, 0x2c200800, 0x40101101,
0x90000002, 0x00002010, 0x20200000, 0x00801001,
0x90040002, 0x00002010, 0x24200000, 0x00901001,
0x90400002, 0x00002018, 0x20200800, 0x40801001,
0x90440002, 0x00002018, 0x24200800, 0x40901001,
0x90000402, 0x00002030, 0x28200000, 0x00801101,
0x90040402, 0x00002030, 0x2c200000, 0x00901101,
0x90400402, 0x00002038, 0x28200800, 0x40801101,
0x90440402, 0x00002038, 0x2c200800, 0x40901101,
0x00000202, 0x00082000, 0x20000000, 0x00000005,
0x00040202, 0x00082000, 0x24000000, 0x00100005,
0x00400202, 0x00082008, 0x20000800, 0x40000005,
0x00440202, 0x00082008, 0x24000800, 0x40100005,
0x00000602, 0x00082020, 0x28000000, 0x00000105,
0x00040602, 0x00082020, 0x2c000000, 0x00100105,
0x00400602, 0x00082028, 0x28000800, 0x40000105,
0x00440602, 0x00082028, 0x2c000800, 0x40100105,
0x80000202, 0x00082010, 0x20000000, 0x00800005,
0x80040202, 0x00082010, 0x24000000, 0x00900005,
0x80400202, 0x00082018, 0x20000800, 0x40800005,
0x80440202, 0x00082018, 0x24000800, 0x40900005,
0x80000602, 0x00082030, 0x28000000, 0x00800105,
0x80040602, 0x00082030, 0x2c000000, 0x00900105,
0x80400602, 0x00082038, 0x28000800, 0x40800105,
0x80440602, 0x00082038, 0x2c000800, 0x40900105,
0x10000202, 0x00082000, 0x20200000, 0x00001005,
0x10040202, 0x00082000, 0x24200000, 0x00101005,
0x10400202, 0x00082008, 0x20200800, 0x40001005,
0x10440202, 0x00082008, 0x24200800, 0x40101005,
0x10000602, 0x00082020, 0x28200000, 0x00001105,
0x10040602, 0x00082020, 0x2c200000, 0x00101105,
0x10400602, 0x00082028, 0x28200800, 0x40001105,
0x10440602, 0x00082028, 0x2c200800, 0x40101105,
0x90000202, 0x00082010, 0x20200000, 0x00801005,
0x90040202, 0x00082010, 0x24200000, 0x00901005,
0x90400202, 0x00082018, 0x20200800, 0x40801005,
0x90440202, 0x00082018, 0x24200800, 0x40901005,
0x90000602, 0x00082030, 0x28200000, 0x00801105,
0x90040602, 0x00082030, 0x2c200000, 0x00901105,
0x90400602, 0x00082038, 0x28200800, 0x40801105,
0x90440602, 0x00082038, 0x2c200800, 0x40901105,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000008, 0x00080000, 0x10000000,
0x02000000, 0x00000000, 0x00000080, 0x00001000,
0x02000000, 0x00000008, 0x00080080, 0x10001000,
0x00004000, 0x00000000, 0x00000040, 0x00040000,
0x00004000, 0x00000008, 0x00080040, 0x10040000,
0x02004000, 0x00000000, 0x000000c0, 0x00041000,
0x02004000, 0x00000008, 0x000800c0, 0x10041000,
0x00020000, 0x00008000, 0x08000000, 0x00200000,
0x00020000, 0x00008008, 0x08080000, 0x10200000,
0x02020000, 0x00008000, 0x08000080, 0x00201000,
0x02020000, 0x00008008, 0x08080080, 0x10201000,
0x00024000, 0x00008000, 0x08000040, 0x00240000,
0x00024000, 0x00008008, 0x08080040, 0x10240000,
0x02024000, 0x00008000, 0x080000c0, 0x00241000,
0x02024000, 0x00008008, 0x080800c0, 0x10241000,
0x00000000, 0x01000000, 0x00002000, 0x00000020,
0x00000000, 0x01000008, 0x00082000, 0x10000020,
0x02000000, 0x01000000, 0x00002080, 0x00001020,
0x02000000, 0x01000008, 0x00082080, 0x10001020,
0x00004000, 0x01000000, 0x00002040, 0x00040020,
0x00004000, 0x01000008, 0x00082040, 0x10040020,
0x02004000, 0x01000000, 0x000020c0, 0x00041020,
0x02004000, 0x01000008, 0x000820c0, 0x10041020,
0x00020000, 0x01008000, 0x08002000, 0x00200020,
0x00020000, 0x01008008, 0x08082000, 0x10200020,
0x02020000, 0x01008000, 0x08002080, 0x00201020,
0x02020000, 0x01008008, 0x08082080, 0x10201020,
0x00024000, 0x01008000, 0x08002040, 0x00240020,
0x00024000, 0x01008008, 0x08082040, 0x10240020,
0x02024000, 0x01008000, 0x080020c0, 0x00241020,
0x02024000, 0x01008008, 0x080820c0, 0x10241020,
0x00000400, 0x04000000, 0x00100000, 0x00000004,
0x00000400, 0x04000008, 0x00180000, 0x10000004,
0x02000400, 0x04000000, 0x00100080, 0x00001004,
0x02000400, 0x04000008, 0x00180080, 0x10001004,
0x00004400, 0x04000000, 0x00100040, 0x00040004,
0x00004400, 0x04000008, 0x00180040, 0x10040004,
0x02004400, 0x04000000, 0x001000c0, 0x00041004,
0x02004400, 0x04000008, 0x001800c0, 0x10041004,
0x00020400, 0x04008000, 0x08100000, 0x00200004,
0x00020400, 0x04008008, 0x08180000, 0x10200004,
0x02020400, 0x04008000, 0x08100080, 0x00201004,
0x02020400, 0x04008008, 0x08180080, 0x10201004,
0x00024400, 0x04008000, 0x08100040, 0x00240004,
0x00024400, 0x04008008, 0x08180040, 0x10240004,
0x02024400, 0x04008000, 0x081000c0, 0x00241004,
0x02024400, 0x04008008, 0x081800c0, 0x10241004,
0x00000400, 0x05000000, 0x00102000, 0x00000024,
0x00000400, 0x05000008, 0x00182000, 0x10000024,
0x02000400, 0x05000000, 0x00102080, 0x00001024,
0x02000400, 0x05000008, 0x00182080, 0x10001024,
0x00004400, 0x05000000, 0x00102040, 0x00040024,
0x00004400, 0x05000008, 0x00182040, 0x10040024,
0x02004400, 0x05000000, 0x001020c0, 0x00041024,
0x02004400, 0x05000008, 0x001820c0, 0x10041024,
0x00020400, 0x05008000, 0x08102000, 0x00200024,
0x00020400, 0x05008008, 0x08182000, 0x10200024,
0x02020400, 0x05008000, 0x08102080, 0x00201024,
0x02020400, 0x05008008, 0x08182080, 0x10201024,
0x00024400, 0x05008000, 0x08102040, 0x00240024,
0x00024400, 0x05008008, 0x08182040, 0x10240024,
0x02024400, 0x05008000, 0x081020c0, 0x00241024,
0x02024400, 0x05008008, 0x081820c0, 0x10241024,
0x00000800, 0x00010000, 0x20000000, 0x00000010,
0x00000800, 0x00010008, 0x20080000, 0x10000010,
0x02000800, 0x00010000, 0x20000080, 0x00001010,
0x02000800, 0x00010008, 0x20080080, 0x10001010,
0x00004800, 0x00010000, 0x20000040, 0x00040010,
0x00004800, 0x00010008, 0x20080040, 0x10040010,
0x02004800, 0x00010000, 0x200000c0, 0x00041010,
0x02004800, 0x00010008, 0x200800c0, 0x10041010,
0x00020800, 0x00018000, 0x28000000, 0x00200010,
0x00020800, 0x00018008, 0x28080000, 0x10200010,
0x02020800, 0x00018000, 0x28000080, 0x00201010,
0x02020800, 0x00018008, 0x28080080, 0x10201010,
0x00024800, 0x00018000, 0x28000040, 0x00240010,
0x00024800, 0x00018008, 0x28080040, 0x10240010,
0x02024800, 0x00018000, 0x280000c0, 0x00241010,
0x02024800, 0x00018008, 0x280800c0, 0x10241010,
0x00000800, 0x01010000, 0x20002000, 0x00000030,
0x00000800, 0x01010008, 0x20082000, 0x10000030,
0x02000800, 0x01010000, 0x20002080, 0x00001030,
0x02000800, 0x01010008, 0x20082080, 0x10001030,
0x00004800, 0x01010000, 0x20002040, 0x00040030,
0x00004800, 0x01010008, 0x20082040, 0x10040030,
0x02004800, 0x01010000, 0x200020c0, 0x00041030,
0x02004800, 0x01010008, 0x200820c0, 0x10041030,
0x00020800, 0x01018000, 0x28002000, 0x00200030,
0x00020800, 0x01018008, 0x28082000, 0x10200030,
0x02020800, 0x01018000, 0x28002080, 0x00201030,
0x02020800, 0x01018008, 0x28082080, 0x10201030,
0x00024800, 0x01018000, 0x28002040, 0x00240030,
0x00024800, 0x01018008, 0x28082040, 0x10240030,
0x02024800, 0x01018000, 0x280020c0, 0x00241030,
0x02024800, 0x01018008, 0x280820c0, 0x10241030,
0x00000c00, 0x04010000, 0x20100000, 0x00000014,
0x00000c00, 0x04010008, 0x20180000, 0x10000014,
0x02000c00, 0x04010000, 0x20100080, 0x00001014,
0x02000c00, 0x04010008, 0x20180080, 0x10001014,
0x00004c00, 0x04010000, 0x20100040, 0x00040014,
0x00004c00, 0x04010008, 0x20180040, 0x10040014,
0x02004c00, 0x04010000, 0x201000c0, 0x00041014,
0x02004c00, 0x04010008, 0x201800c0, 0x10041014,
0x00020c00, 0x04018000, 0x28100000, 0x00200014,
0x00020c00, 0x04018008, 0x28180000, 0x10200014,
0x02020c00, 0x04018000, 0x28100080, 0x00201014,
0x02020c00, 0x04018008, 0x28180080, 0x10201014,
0x00024c00, 0x04018000, 0x28100040, 0x00240014,
0x00024c00, 0x04018008, 0x28180040, 0x10240014,
0x02024c00, 0x04018000, 0x281000c0, 0x00241014,
0x02024c00, 0x04018008, 0x281800c0, 0x10241014,
0x00000c00, 0x05010000, 0x20102000, 0x00000034,
0x00000c00, 0x05010008, 0x20182000, 0x10000034,
0x02000c00, 0x05010000, 0x20102080, 0x00001034,
0x02000c00, 0x05010008, 0x20182080, 0x10001034,
0x00004c00, 0x05010000, 0x20102040, 0x00040034,
0x00004c00, 0x05010008, 0x20182040, 0x10040034,
0x02004c00, 0x05010000, 0x201020c0, 0x00041034,
0x02004c00, 0x05010008, 0x201820c0, 0x10041034,
0x00020c00, 0x05018000, 0x28102000, 0x00200034,
0x00020c00, 0x05018008, 0x28182000, 0x10200034,
0x02020c00, 0x05018000, 0x28102080, 0x00201034,
0x02020c00, 0x05018008, 0x28182080, 0x10201034,
0x00024c00, 0x05018000, 0x28102040, 0x00240034,
0x00024c00, 0x05018008, 0x28182040, 0x10240034,
0x02024c00, 0x05018000, 0x281020c0, 0x00241034,
0x02024c00, 0x05018008, 0x281820c0, 0x10241034
}; };
/* S-box lookup tables */
static const u32 S1[64] = {
0x01010400, 0x00000000, 0x00010000, 0x01010404,
0x01010004, 0x00010404, 0x00000004, 0x00010000,
0x00000400, 0x01010400, 0x01010404, 0x00000400,
0x01000404, 0x01010004, 0x01000000, 0x00000004,
0x00000404, 0x01000400, 0x01000400, 0x00010400,
0x00010400, 0x01010000, 0x01010000, 0x01000404,
0x00010004, 0x01000004, 0x01000004, 0x00010004,
0x00000000, 0x00000404, 0x00010404, 0x01000000,
0x00010000, 0x01010404, 0x00000004, 0x01010000,
0x01010400, 0x01000000, 0x01000000, 0x00000400,
0x01010004, 0x00010000, 0x00010400, 0x01000004,
0x00000400, 0x00000004, 0x01000404, 0x00010404,
0x01010404, 0x00010004, 0x01010000, 0x01000404,
0x01000004, 0x00000404, 0x00010404, 0x01010400,
0x00000404, 0x01000400, 0x01000400, 0x00000000,
0x00010004, 0x00010400, 0x00000000, 0x01010004
};
static void des_small_fips_encrypt(u32 *expkey, u8 *dst, const u8 *src) static const u32 S2[64] = {
{ 0x80108020, 0x80008000, 0x00008000, 0x00108020,
u32 x, y, z; 0x00100000, 0x00000020, 0x80100020, 0x80008020,
0x80000020, 0x80108020, 0x80108000, 0x80000000,
x = src[7]; 0x80008000, 0x00100000, 0x00000020, 0x80100020,
x <<= 8; 0x00108000, 0x00100020, 0x80008020, 0x00000000,
x |= src[6]; 0x80000000, 0x00008000, 0x00108020, 0x80100000,
x <<= 8; 0x00100020, 0x80000020, 0x00000000, 0x00108000,
x |= src[5]; 0x00008020, 0x80108000, 0x80100000, 0x00008020,
x <<= 8; 0x00000000, 0x00108020, 0x80100020, 0x00100000,
x |= src[4]; 0x80008020, 0x80100000, 0x80108000, 0x00008000,
y = src[3]; 0x80100000, 0x80008000, 0x00000020, 0x80108020,
y <<= 8; 0x00108020, 0x00000020, 0x00008000, 0x80000000,
y |= src[2]; 0x00008020, 0x80108000, 0x00100000, 0x80000020,
y <<= 8; 0x00100020, 0x80008020, 0x80000020, 0x00100020,
y |= src[1]; 0x00108000, 0x00000000, 0x80008000, 0x00008020,
y <<= 8; 0x80000000, 0x80100020, 0x80108020, 0x00108000
y |= src[0]; };
z = ((x >> 004) ^ y) & 0x0F0F0F0FL;
x ^= z << 004;
y ^= z;
z = ((y >> 020) ^ x) & 0x0000FFFFL;
y ^= z << 020;
x ^= z;
z = ((x >> 002) ^ y) & 0x33333333L;
x ^= z << 002;
y ^= z;
z = ((y >> 010) ^ x) & 0x00FF00FFL;
y ^= z << 010;
x ^= z;
x = x >> 1 | x << 31;
z = (x ^ y) & 0x55555555L;
y ^= z;
x ^= z;
y = y >> 1 | y << 31;
z = expkey[0];
z ^= y;
x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[1];
z ^= y;
z = z << 4 | z >> 28;
x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[2];
z ^= x;
y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[3];
z ^= x;
z = z << 4 | z >> 28;
y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[4];
z ^= y;
x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[5];
z ^= y;
z = z << 4 | z >> 28;
x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[6];
z ^= x;
y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[7];
z ^= x;
z = z << 4 | z >> 28;
y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[8];
z ^= y;
x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[9];
z ^= y;
z = z << 4 | z >> 28;
x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[10];
z ^= x;
y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[11];
z ^= x;
z = z << 4 | z >> 28;
y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[12];
z ^= y;
x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[13];
z ^= y;
z = z << 4 | z >> 28;
x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[14];
z ^= x;
y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[15];
z ^= x;
z = z << 4 | z >> 28;
y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[16];
z ^= y;
x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[17];
z ^= y;
z = z << 4 | z >> 28;
x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[18];
z ^= x;
y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[19];
z ^= x;
z = z << 4 | z >> 28;
y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[20];
z ^= y;
x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[21];
z ^= y;
z = z << 4 | z >> 28;
x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[22];
z ^= x;
y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[23];
z ^= x;
z = z << 4 | z >> 28;
y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[24];
z ^= y;
x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[25];
z ^= y;
z = z << 4 | z >> 28;
x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[26];
z ^= x;
y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[27];
z ^= x;
z = z << 4 | z >> 28;
y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[28];
z ^= y;
x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[29];
z ^= y;
z = z << 4 | z >> 28;
x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[30];
z ^= x;
y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[31];
z ^= x;
z = z << 4 | z >> 28;
y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
x = x << 1 | x >> 31;
z = (x ^ y) & 0x55555555L;
y ^= z;
x ^= z;
y = y << 1 | y >> 31;
z = ((x >> 010) ^ y) & 0x00FF00FFL;
x ^= z << 010;
y ^= z;
z = ((y >> 002) ^ x) & 0x33333333L;
y ^= z << 002;
x ^= z;
z = ((x >> 020) ^ y) & 0x0000FFFFL;
x ^= z << 020;
y ^= z;
z = ((y >> 004) ^ x) & 0x0F0F0F0FL;
y ^= z << 004;
x ^= z;
dst[0] = x;
x >>= 8;
dst[1] = x;
x >>= 8;
dst[2] = x;
x >>= 8;
dst[3] = x;
dst[4] = y;
y >>= 8;
dst[5] = y;
y >>= 8;
dst[6] = y;
y >>= 8;
dst[7] = y;
}
static void des_small_fips_decrypt(u32 *expkey, u8 *dst, const u8 *src) static const u32 S3[64] = {
{ 0x00000208, 0x08020200, 0x00000000, 0x08020008,
u32 x, y, z; 0x08000200, 0x00000000, 0x00020208, 0x08000200,
0x00020008, 0x08000008, 0x08000008, 0x00020000,
x = src[7]; 0x08020208, 0x00020008, 0x08020000, 0x00000208,
x <<= 8; 0x08000000, 0x00000008, 0x08020200, 0x00000200,
x |= src[6]; 0x00020200, 0x08020000, 0x08020008, 0x00020208,
x <<= 8; 0x08000208, 0x00020200, 0x00020000, 0x08000208,
x |= src[5]; 0x00000008, 0x08020208, 0x00000200, 0x08000000,
x <<= 8; 0x08020200, 0x08000000, 0x00020008, 0x00000208,
x |= src[4]; 0x00020000, 0x08020200, 0x08000200, 0x00000000,
y = src[3]; 0x00000200, 0x00020008, 0x08020208, 0x08000200,
y <<= 8; 0x08000008, 0x00000200, 0x00000000, 0x08020008,
y |= src[2]; 0x08000208, 0x00020000, 0x08000000, 0x08020208,
y <<= 8; 0x00000008, 0x00020208, 0x00020200, 0x08000008,
y |= src[1]; 0x08020000, 0x08000208, 0x00000208, 0x08020000,
y <<= 8; 0x00020208, 0x00000008, 0x08020008, 0x00020200
y |= src[0]; };
z = ((x >> 004) ^ y) & 0x0F0F0F0FL;
x ^= z << 004; static const u32 S4[64] = {
y ^= z; 0x00802001, 0x00002081, 0x00002081, 0x00000080,
z = ((y >> 020) ^ x) & 0x0000FFFFL; 0x00802080, 0x00800081, 0x00800001, 0x00002001,
y ^= z << 020; 0x00000000, 0x00802000, 0x00802000, 0x00802081,
x ^= z; 0x00000081, 0x00000000, 0x00800080, 0x00800001,
z = ((x >> 002) ^ y) & 0x33333333L; 0x00000001, 0x00002000, 0x00800000, 0x00802001,
x ^= z << 002; 0x00000080, 0x00800000, 0x00002001, 0x00002080,
y ^= z; 0x00800081, 0x00000001, 0x00002080, 0x00800080,
z = ((y >> 010) ^ x) & 0x00FF00FFL; 0x00002000, 0x00802080, 0x00802081, 0x00000081,
y ^= z << 010; 0x00800080, 0x00800001, 0x00802000, 0x00802081,
x ^= z; 0x00000081, 0x00000000, 0x00000000, 0x00802000,
x = x >> 1 | x << 31; 0x00002080, 0x00800080, 0x00800081, 0x00000001,
z = (x ^ y) & 0x55555555L; 0x00802001, 0x00002081, 0x00002081, 0x00000080,
y ^= z; 0x00802081, 0x00000081, 0x00000001, 0x00002000,
x ^= z; 0x00800001, 0x00002001, 0x00802080, 0x00800081,
y = y >> 1 | y << 31; 0x00002001, 0x00002080, 0x00800000, 0x00802001,
z = expkey[31]; 0x00000080, 0x00800000, 0x00002000, 0x00802080
z ^= y; };
z = z << 4 | z >> 28;
x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z)); static const u32 S5[64] = {
z >>= 8; 0x00000100, 0x02080100, 0x02080000, 0x42000100,
x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z)); 0x00080000, 0x00000100, 0x40000000, 0x02080000,
z >>= 8; 0x40080100, 0x00080000, 0x02000100, 0x40080100,
x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z)); 0x42000100, 0x42080000, 0x00080100, 0x40000000,
z >>= 8; 0x02000000, 0x40080000, 0x40080000, 0x00000000,
x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z)); 0x40000100, 0x42080100, 0x42080100, 0x02000100,
z = expkey[30]; 0x42080000, 0x40000100, 0x00000000, 0x42000000,
z ^= y; 0x02080100, 0x02000000, 0x42000000, 0x00080100,
x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z)); 0x00080000, 0x42000100, 0x00000100, 0x02000000,
z >>= 8; 0x40000000, 0x02080000, 0x42000100, 0x40080100,
x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z)); 0x02000100, 0x40000000, 0x42080000, 0x02080100,
z >>= 8; 0x40080100, 0x00000100, 0x02000000, 0x42080000,
x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z)); 0x42080100, 0x00080100, 0x42000000, 0x42080100,
z >>= 8; 0x02080000, 0x00000000, 0x40080000, 0x42000000,
x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z)); 0x00080100, 0x02000100, 0x40000100, 0x00080000,
z = expkey[29]; 0x00000000, 0x40080000, 0x02080100, 0x40000100
z ^= x; };
z = z << 4 | z >> 28;
y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z)); static const u32 S6[64] = {
z >>= 8; 0x20000010, 0x20400000, 0x00004000, 0x20404010,
y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z)); 0x20400000, 0x00000010, 0x20404010, 0x00400000,
z >>= 8; 0x20004000, 0x00404010, 0x00400000, 0x20000010,
y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z)); 0x00400010, 0x20004000, 0x20000000, 0x00004010,
z >>= 8; 0x00000000, 0x00400010, 0x20004010, 0x00004000,
y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z)); 0x00404000, 0x20004010, 0x00000010, 0x20400010,
z = expkey[28]; 0x20400010, 0x00000000, 0x00404010, 0x20404000,
z ^= x; 0x00004010, 0x00404000, 0x20404000, 0x20000000,
y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z)); 0x20004000, 0x00000010, 0x20400010, 0x00404000,
z >>= 8; 0x20404010, 0x00400000, 0x00004010, 0x20000010,
y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z)); 0x00400000, 0x20004000, 0x20000000, 0x00004010,
z >>= 8; 0x20000010, 0x20404010, 0x00404000, 0x20400000,
y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z)); 0x00404010, 0x20404000, 0x00000000, 0x20400010,
z >>= 8; 0x00000010, 0x00004000, 0x20400000, 0x00404010,
y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z)); 0x00004000, 0x00400010, 0x20004010, 0x00000000,
z = expkey[27]; 0x20404000, 0x20000000, 0x00400010, 0x20004010
z ^= y; };
z = z << 4 | z >> 28;
x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z)); static const u32 S7[64] = {
z >>= 8; 0x00200000, 0x04200002, 0x04000802, 0x00000000,
x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z)); 0x00000800, 0x04000802, 0x00200802, 0x04200800,
z >>= 8; 0x04200802, 0x00200000, 0x00000000, 0x04000002,
x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z)); 0x00000002, 0x04000000, 0x04200002, 0x00000802,
z >>= 8; 0x04000800, 0x00200802, 0x00200002, 0x04000800,
x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z)); 0x04000002, 0x04200000, 0x04200800, 0x00200002,
z = expkey[26]; 0x04200000, 0x00000800, 0x00000802, 0x04200802,
z ^= y; 0x00200800, 0x00000002, 0x04000000, 0x00200800,
x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z)); 0x04000000, 0x00200800, 0x00200000, 0x04000802,
z >>= 8; 0x04000802, 0x04200002, 0x04200002, 0x00000002,
x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z)); 0x00200002, 0x04000000, 0x04000800, 0x00200000,
z >>= 8; 0x04200800, 0x00000802, 0x00200802, 0x04200800,
x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z)); 0x00000802, 0x04000002, 0x04200802, 0x04200000,
z >>= 8; 0x00200800, 0x00000000, 0x00000002, 0x04200802,
x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z)); 0x00000000, 0x00200802, 0x04200000, 0x00000800,
z = expkey[25]; 0x04000002, 0x04000800, 0x00000800, 0x00200002
z ^= x; };
z = z << 4 | z >> 28;
y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z)); static const u32 S8[64] = {
z >>= 8; 0x10001040, 0x00001000, 0x00040000, 0x10041040,
y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z)); 0x10000000, 0x10001040, 0x00000040, 0x10000000,
z >>= 8; 0x00040040, 0x10040000, 0x10041040, 0x00041000,
y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z)); 0x10041000, 0x00041040, 0x00001000, 0x00000040,
z >>= 8; 0x10040000, 0x10000040, 0x10001000, 0x00001040,
y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z)); 0x00041000, 0x00040040, 0x10040040, 0x10041000,
z = expkey[24]; 0x00001040, 0x00000000, 0x00000000, 0x10040040,
z ^= x; 0x10000040, 0x10001000, 0x00041040, 0x00040000,
y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z)); 0x00041040, 0x00040000, 0x10041000, 0x00001000,
z >>= 8; 0x00000040, 0x10040040, 0x00001000, 0x00041040,
y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z)); 0x10001000, 0x00000040, 0x10000040, 0x10040000,
z >>= 8; 0x10040040, 0x10000000, 0x00040000, 0x10001040,
y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z)); 0x00000000, 0x10041040, 0x00040040, 0x10000040,
z >>= 8; 0x10040000, 0x10001000, 0x10001040, 0x00000000,
y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z)); 0x10041040, 0x00041000, 0x00041000, 0x00001040,
z = expkey[23]; 0x00001040, 0x00040040, 0x10000000, 0x10041000
z ^= y; };
z = z << 4 | z >> 28;
x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z)); /* Encryption components: IP, FP, and round function */
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z)); #define IP(L, R, T) \
z >>= 8; ROL(R, 4); \
x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z)); T = L; \
z >>= 8; L ^= R; \
x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z)); L &= 0xf0f0f0f0; \
z = expkey[22]; R ^= L; \
z ^= y; L ^= T; \
x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z)); ROL(R, 12); \
z >>= 8; T = L; \
x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z)); L ^= R; \
z >>= 8; L &= 0xffff0000; \
x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z)); R ^= L; \
z >>= 8; L ^= T; \
x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z)); ROR(R, 14); \
z = expkey[21]; T = L; \
z ^= x; L ^= R; \
z = z << 4 | z >> 28; L &= 0xcccccccc; \
y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z)); R ^= L; \
z >>= 8; L ^= T; \
y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z)); ROL(R, 6); \
z >>= 8; T = L; \
y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z)); L ^= R; \
z >>= 8; L &= 0xff00ff00; \
y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z)); R ^= L; \
z = expkey[20]; L ^= T; \
z ^= x; ROR(R, 7); \
y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z)); T = L; \
z >>= 8; L ^= R; \
y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z)); L &= 0xaaaaaaaa; \
z >>= 8; R ^= L; \
y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z)); L ^= T; \
z >>= 8; ROL(L, 1);
y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[19]; #define FP(L, R, T) \
z ^= y; ROR(L, 1); \
z = z << 4 | z >> 28; T = L; \
x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z)); L ^= R; \
z >>= 8; L &= 0xaaaaaaaa; \
x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z)); R ^= L; \
z >>= 8; L ^= T; \
x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z)); ROL(R, 7); \
z >>= 8; T = L; \
x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z)); L ^= R; \
z = expkey[18]; L &= 0xff00ff00; \
z ^= y; R ^= L; \
x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z)); L ^= T; \
z >>= 8; ROR(R, 6); \
x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z)); T = L; \
z >>= 8; L ^= R; \
x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z)); L &= 0xcccccccc; \
z >>= 8; R ^= L; \
x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z)); L ^= T; \
z = expkey[17]; ROL(R, 14); \
z ^= x; T = L; \
z = z << 4 | z >> 28; L ^= R; \
y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z)); L &= 0xffff0000; \
z >>= 8; R ^= L; \
y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z)); L ^= T; \
z >>= 8; ROR(R, 12); \
y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z)); T = L; \
z >>= 8; L ^= R; \
y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z)); L &= 0xf0f0f0f0; \
z = expkey[16]; R ^= L; \
z ^= x; L ^= T; \
y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z)); ROR(R, 4);
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z)); #define ROUND(L, R, A, B, K, d) \
z >>= 8; B = K[0]; A = K[1]; K += d; \
y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z)); B ^= R; A ^= R; \
z >>= 8; B &= 0x3f3f3f3f; ROR(A, 4); \
y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z)); L ^= S8[0xff & B]; A &= 0x3f3f3f3f; \
z = expkey[15]; L ^= S6[0xff & (B >> 8)]; B >>= 16; \
z ^= y; L ^= S7[0xff & A]; \
z = z << 4 | z >> 28; L ^= S5[0xff & (A >> 8)]; A >>= 16; \
x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z)); L ^= S4[0xff & B]; \
z >>= 8; L ^= S2[0xff & (B >> 8)]; \
x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z)); L ^= S3[0xff & A]; \
z >>= 8; L ^= S1[0xff & (A >> 8)];
x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8; /*
x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z)); * PC2 lookup tables are organized as 2 consecutive sets of 4 interleaved
z = expkey[14]; * tables of 128 elements. One set is for C_i and the other for D_i, while
z ^= y; * the 4 interleaved tables correspond to four 7-bit subsets of C_i or D_i.
x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z)); *
z >>= 8; * After PC1 each of the variables a,b,c,d contains a 7 bit subset of C_i
x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z)); * or D_i in bits 7-1 (bit 0 being the least significant).
z >>= 8; */
x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8; #define T1(x) pt[2 * (x) + 0]
x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z)); #define T2(x) pt[2 * (x) + 1]
z = expkey[13]; #define T3(x) pt[2 * (x) + 2]
z ^= x; #define T4(x) pt[2 * (x) + 3]
z = z << 4 | z >> 28;
y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z)); #define PC2(a, b, c, d) (T4(d) | T3(c) | T2(b) | T1(a))
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[12];
z ^= x;
y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[11];
z ^= y;
z = z << 4 | z >> 28;
x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[10];
z ^= y;
x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[9];
z ^= x;
z = z << 4 | z >> 28;
y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[8];
z ^= x;
y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[7];
z ^= y;
z = z << 4 | z >> 28;
x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[6];
z ^= y;
x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[5];
z ^= x;
z = z << 4 | z >> 28;
y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[4];
z ^= x;
y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[3];
z ^= y;
z = z << 4 | z >> 28;
x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[2];
z ^= y;
x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
z = expkey[1];
z ^= x;
z = z << 4 | z >> 28;
y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
z = expkey[0];
z ^= x;
y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
z >>= 8;
y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
x = x << 1 | x >> 31;
z = (x ^ y) & 0x55555555L;
y ^= z;
x ^= z;
y = y << 1 | y >> 31;
z = ((x >> 010) ^ y) & 0x00FF00FFL;
x ^= z << 010;
y ^= z;
z = ((y >> 002) ^ x) & 0x33333333L;
y ^= z << 002;
x ^= z;
z = ((x >> 020) ^ y) & 0x0000FFFFL;
x ^= z << 020;
y ^= z;
z = ((y >> 004) ^ x) & 0x0F0F0F0FL;
y ^= z << 004;
x ^= z;
dst[0] = x;
x >>= 8;
dst[1] = x;
x >>= 8;
dst[2] = x;
x >>= 8;
dst[3] = x;
dst[4] = y;
y >>= 8;
dst[5] = y;
y >>= 8;
dst[6] = y;
y >>= 8;
dst[7] = y;
}
/* /*
* Encryption key expansion
*
* RFC2451: Weak key checks SHOULD be performed. * RFC2451: Weak key checks SHOULD be performed.
*
* FIPS 74:
*
* Keys having duals are keys which produce all zeros, all ones, or
* alternating zero-one patterns in the C and D registers after Permuted
* Choice 1 has operated on the key.
*
*/ */
static int setkey(u32 *expkey, const u8 *key, unsigned int keylen, u32 *flags) static unsigned long ekey(u32 *pe, const u8 *k)
{ {
const u8 *k; /* K&R: long is at least 32 bits */
u8 *b0, *b1; unsigned long a, b, c, d, w;
u32 n, w; const u32 *pt = pc2;
u8 bits0[56], bits1[56];
d = k[4]; d &= 0x0e; d <<= 4; d |= k[0] & 0x1e; d = pc1[d];
n = parity[key[0]]; n <<= 4; c = k[5]; c &= 0x0e; c <<= 4; c |= k[1] & 0x1e; c = pc1[c];
n |= parity[key[1]]; n <<= 4; b = k[6]; b &= 0x0e; b <<= 4; b |= k[2] & 0x1e; b = pc1[b];
n |= parity[key[2]]; n <<= 4; a = k[7]; a &= 0x0e; a <<= 4; a |= k[3] & 0x1e; a = pc1[a];
n |= parity[key[3]]; n <<= 4;
n |= parity[key[4]]; n <<= 4; pe[15 * 2 + 0] = PC2(a, b, c, d); d = rs[d];
n |= parity[key[5]]; n <<= 4; pe[14 * 2 + 0] = PC2(d, a, b, c); c = rs[c]; b = rs[b];
n |= parity[key[6]]; n <<= 4; pe[13 * 2 + 0] = PC2(b, c, d, a); a = rs[a]; d = rs[d];
n |= parity[key[7]]; pe[12 * 2 + 0] = PC2(d, a, b, c); c = rs[c]; b = rs[b];
w = 0x88888888L; pe[11 * 2 + 0] = PC2(b, c, d, a); a = rs[a]; d = rs[d];
pe[10 * 2 + 0] = PC2(d, a, b, c); c = rs[c]; b = rs[b];
if ((*flags & CRYPTO_TFM_REQ_WEAK_KEY) pe[ 9 * 2 + 0] = PC2(b, c, d, a); a = rs[a]; d = rs[d];
&& !((n - (w >> 3)) & w)) { /* 1 in 10^10 keys passes this test */ pe[ 8 * 2 + 0] = PC2(d, a, b, c); c = rs[c];
if (n < 0x41415151) { pe[ 7 * 2 + 0] = PC2(c, d, a, b); b = rs[b]; a = rs[a];
if (n < 0x31312121) { pe[ 6 * 2 + 0] = PC2(a, b, c, d); d = rs[d]; c = rs[c];
if (n < 0x14141515) { pe[ 5 * 2 + 0] = PC2(c, d, a, b); b = rs[b]; a = rs[a];
/* 01 01 01 01 01 01 01 01 */ pe[ 4 * 2 + 0] = PC2(a, b, c, d); d = rs[d]; c = rs[c];
if (n == 0x11111111) goto weak; pe[ 3 * 2 + 0] = PC2(c, d, a, b); b = rs[b]; a = rs[a];
/* 01 1F 01 1F 01 0E 01 0E */ pe[ 2 * 2 + 0] = PC2(a, b, c, d); d = rs[d]; c = rs[c];
if (n == 0x13131212) goto weak; pe[ 1 * 2 + 0] = PC2(c, d, a, b); b = rs[b];
} else { pe[ 0 * 2 + 0] = PC2(b, c, d, a);
/* 01 E0 01 E0 01 F1 01 F1 */
if (n == 0x14141515) goto weak; /* Check if first half is weak */
/* 01 FE 01 FE 01 FE 01 FE */ w = (a ^ c) | (b ^ d) | (rs[a] ^ c) | (b ^ rs[d]);
if (n == 0x16161616) goto weak;
} /* Skip to next table set */
} else { pt += 512;
if (n < 0x34342525) {
/* 1F 01 1F 01 0E 01 0E 01 */ d = k[0]; d &= 0xe0; d >>= 4; d |= k[4] & 0xf0; d = pc1[d + 1];
if (n == 0x31312121) goto weak; c = k[1]; c &= 0xe0; c >>= 4; c |= k[5] & 0xf0; c = pc1[c + 1];
/* 1F 1F 1F 1F 0E 0E 0E 0E (?) */ b = k[2]; b &= 0xe0; b >>= 4; b |= k[6] & 0xf0; b = pc1[b + 1];
if (n == 0x33332222) goto weak; a = k[3]; a &= 0xe0; a >>= 4; a |= k[7] & 0xf0; a = pc1[a + 1];
} else {
/* 1F E0 1F E0 0E F1 0E F1 */ /* Check if second half is weak */
if (n == 0x34342525) goto weak; w |= (a ^ c) | (b ^ d) | (rs[a] ^ c) | (b ^ rs[d]);
/* 1F FE 1F FE 0E FE 0E FE */
if (n == 0x36362626) goto weak; pe[15 * 2 + 1] = PC2(a, b, c, d); d = rs[d];
} pe[14 * 2 + 1] = PC2(d, a, b, c); c = rs[c]; b = rs[b];
} pe[13 * 2 + 1] = PC2(b, c, d, a); a = rs[a]; d = rs[d];
} else { pe[12 * 2 + 1] = PC2(d, a, b, c); c = rs[c]; b = rs[b];
if (n < 0x61616161) { pe[11 * 2 + 1] = PC2(b, c, d, a); a = rs[a]; d = rs[d];
if (n < 0x44445555) { pe[10 * 2 + 1] = PC2(d, a, b, c); c = rs[c]; b = rs[b];
/* E0 01 E0 01 F1 01 F1 01 */ pe[ 9 * 2 + 1] = PC2(b, c, d, a); a = rs[a]; d = rs[d];
if (n == 0x41415151) goto weak; pe[ 8 * 2 + 1] = PC2(d, a, b, c); c = rs[c];
/* E0 1F E0 1F F1 0E F1 0E */ pe[ 7 * 2 + 1] = PC2(c, d, a, b); b = rs[b]; a = rs[a];
if (n == 0x43435252) goto weak; pe[ 6 * 2 + 1] = PC2(a, b, c, d); d = rs[d]; c = rs[c];
} else { pe[ 5 * 2 + 1] = PC2(c, d, a, b); b = rs[b]; a = rs[a];
/* E0 E0 E0 E0 F1 F1 F1 F1 (?) */ pe[ 4 * 2 + 1] = PC2(a, b, c, d); d = rs[d]; c = rs[c];
if (n == 0x44445555) goto weak; pe[ 3 * 2 + 1] = PC2(c, d, a, b); b = rs[b]; a = rs[a];
/* E0 FE E0 FE F1 FE F1 FE */ pe[ 2 * 2 + 1] = PC2(a, b, c, d); d = rs[d]; c = rs[c];
if (n == 0x46465656) goto weak; pe[ 1 * 2 + 1] = PC2(c, d, a, b); b = rs[b];
} pe[ 0 * 2 + 1] = PC2(b, c, d, a);
} else {
if (n < 0x64646565) { /* Fixup: 2413 5768 -> 1357 2468 */
/* FE 01 FE 01 FE 01 FE 01 */ for (d = 0; d < 16; ++d) {
if (n == 0x61616161) goto weak; a = pe[2 * d];
/* FE 1F FE 1F FE 0E FE 0E */ b = pe[2 * d + 1];
if (n == 0x63636262) goto weak; c = a ^ b;
} else { c &= 0xffff0000;
/* FE E0 FE E0 FE F1 FE F1 */ a ^= c;
if (n == 0x64646565) goto weak; b ^= c;
/* FE FE FE FE FE FE FE FE */ ROL(b, 18);
if (n == 0x66666666) goto weak; pe[2 * d] = a;
} pe[2 * d + 1] = b;
}
}
goto not_weak;
weak:
*flags |= CRYPTO_TFM_RES_WEAK_KEY;
return -EINVAL;
} }
not_weak: /* Zero if weak key */
return w;
/* explode the bits */ }
n = 56;
b0 = bits0;
b1 = bits1;
do {
w = (256 | *key++) << 2;
do {
--n;
b1[n] = 8 & w;
w >>= 1;
b0[n] = 4 & w;
} while ( w >= 16 );
} while ( n );
/* put the bits in the correct places */
n = 16;
k = rotors;
do {
w = (b1[k[ 0 ]] | b0[k[ 1 ]]) << 4;
w |= (b1[k[ 2 ]] | b0[k[ 3 ]]) << 2;
w |= b1[k[ 4 ]] | b0[k[ 5 ]];
w <<= 8;
w |= (b1[k[ 6 ]] | b0[k[ 7 ]]) << 4;
w |= (b1[k[ 8 ]] | b0[k[ 9 ]]) << 2;
w |= b1[k[10 ]] | b0[k[11 ]];
w <<= 8;
w |= (b1[k[12 ]] | b0[k[13 ]]) << 4;
w |= (b1[k[14 ]] | b0[k[15 ]]) << 2;
w |= b1[k[16 ]] | b0[k[17 ]];
w <<= 8;
w |= (b1[k[18 ]] | b0[k[19 ]]) << 4;
w |= (b1[k[20 ]] | b0[k[21 ]]) << 2;
w |= b1[k[22 ]] | b0[k[23 ]];
expkey[0] = w;
w = (b1[k[ 0+24]] | b0[k[ 1+24]]) << 4;
w |= (b1[k[ 2+24]] | b0[k[ 3+24]]) << 2;
w |= b1[k[ 4+24]] | b0[k[ 5+24]];
w <<= 8;
w |= (b1[k[ 6+24]] | b0[k[ 7+24]]) << 4;
w |= (b1[k[ 8+24]] | b0[k[ 9+24]]) << 2;
w |= b1[k[10+24]] | b0[k[11+24]];
w <<= 8;
w |= (b1[k[12+24]] | b0[k[13+24]]) << 4;
w |= (b1[k[14+24]] | b0[k[15+24]]) << 2;
w |= b1[k[16+24]] | b0[k[17+24]];
w <<= 8;
w |= (b1[k[18+24]] | b0[k[19+24]]) << 4;
w |= (b1[k[20+24]] | b0[k[21+24]]) << 2;
w |= b1[k[22+24]] | b0[k[23+24]];
ROR(w, 4, 28); /* could be eliminated */
expkey[1] = w;
k += 48;
expkey += 2;
} while (--n);
return 0; /*
* Decryption key expansion
*
* No weak key checking is performed, as this is only used by triple DES
*
*/
static void dkey(u32 *pe, const u8 *k)
{
/* K&R: long is at least 32 bits */
unsigned long a, b, c, d;
const u32 *pt = pc2;
d = k[4]; d &= 0x0e; d <<= 4; d |= k[0] & 0x1e; d = pc1[d];
c = k[5]; c &= 0x0e; c <<= 4; c |= k[1] & 0x1e; c = pc1[c];
b = k[6]; b &= 0x0e; b <<= 4; b |= k[2] & 0x1e; b = pc1[b];
a = k[7]; a &= 0x0e; a <<= 4; a |= k[3] & 0x1e; a = pc1[a];
pe[ 0 * 2] = PC2(a, b, c, d); d = rs[d];
pe[ 1 * 2] = PC2(d, a, b, c); c = rs[c]; b = rs[b];
pe[ 2 * 2] = PC2(b, c, d, a); a = rs[a]; d = rs[d];
pe[ 3 * 2] = PC2(d, a, b, c); c = rs[c]; b = rs[b];
pe[ 4 * 2] = PC2(b, c, d, a); a = rs[a]; d = rs[d];
pe[ 5 * 2] = PC2(d, a, b, c); c = rs[c]; b = rs[b];
pe[ 6 * 2] = PC2(b, c, d, a); a = rs[a]; d = rs[d];
pe[ 7 * 2] = PC2(d, a, b, c); c = rs[c];
pe[ 8 * 2] = PC2(c, d, a, b); b = rs[b]; a = rs[a];
pe[ 9 * 2] = PC2(a, b, c, d); d = rs[d]; c = rs[c];
pe[10 * 2] = PC2(c, d, a, b); b = rs[b]; a = rs[a];
pe[11 * 2] = PC2(a, b, c, d); d = rs[d]; c = rs[c];
pe[12 * 2] = PC2(c, d, a, b); b = rs[b]; a = rs[a];
pe[13 * 2] = PC2(a, b, c, d); d = rs[d]; c = rs[c];
pe[14 * 2] = PC2(c, d, a, b); b = rs[b];
pe[15 * 2] = PC2(b, c, d, a);
/* Skip to next table set */
pt += 512;
d = k[0]; d &= 0xe0; d >>= 4; d |= k[4] & 0xf0; d = pc1[d + 1];
c = k[1]; c &= 0xe0; c >>= 4; c |= k[5] & 0xf0; c = pc1[c + 1];
b = k[2]; b &= 0xe0; b >>= 4; b |= k[6] & 0xf0; b = pc1[b + 1];
a = k[3]; a &= 0xe0; a >>= 4; a |= k[7] & 0xf0; a = pc1[a + 1];
pe[ 0 * 2 + 1] = PC2(a, b, c, d); d = rs[d];
pe[ 1 * 2 + 1] = PC2(d, a, b, c); c = rs[c]; b = rs[b];
pe[ 2 * 2 + 1] = PC2(b, c, d, a); a = rs[a]; d = rs[d];
pe[ 3 * 2 + 1] = PC2(d, a, b, c); c = rs[c]; b = rs[b];
pe[ 4 * 2 + 1] = PC2(b, c, d, a); a = rs[a]; d = rs[d];
pe[ 5 * 2 + 1] = PC2(d, a, b, c); c = rs[c]; b = rs[b];
pe[ 6 * 2 + 1] = PC2(b, c, d, a); a = rs[a]; d = rs[d];
pe[ 7 * 2 + 1] = PC2(d, a, b, c); c = rs[c];
pe[ 8 * 2 + 1] = PC2(c, d, a, b); b = rs[b]; a = rs[a];
pe[ 9 * 2 + 1] = PC2(a, b, c, d); d = rs[d]; c = rs[c];
pe[10 * 2 + 1] = PC2(c, d, a, b); b = rs[b]; a = rs[a];
pe[11 * 2 + 1] = PC2(a, b, c, d); d = rs[d]; c = rs[c];
pe[12 * 2 + 1] = PC2(c, d, a, b); b = rs[b]; a = rs[a];
pe[13 * 2 + 1] = PC2(a, b, c, d); d = rs[d]; c = rs[c];
pe[14 * 2 + 1] = PC2(c, d, a, b); b = rs[b];
pe[15 * 2 + 1] = PC2(b, c, d, a);
/* Fixup: 2413 5768 -> 1357 2468 */
for (d = 0; d < 16; ++d) {
a = pe[2 * d];
b = pe[2 * d + 1];
c = a ^ b;
c &= 0xffff0000;
a ^= c;
b ^= c;
ROL(b, 18);
pe[2 * d] = a;
pe[2 * d + 1] = b;
}
} }
static int des_setkey(void *ctx, const u8 *key, unsigned int keylen, u32 *flags) static int des_setkey(void *ctx, const u8 *key, unsigned int keylen, u32 *flags)
{ {
return setkey(((struct des_ctx *)ctx)->expkey, key, keylen, flags); struct des_ctx *dctx = ctx;
u32 tmp[DES_EXPKEY_WORDS];
int ret;
/* Expand to tmp */
ret = ekey(tmp, key);
if (unlikely(ret == 0) && (*flags & CRYPTO_TFM_REQ_WEAK_KEY)) {
*flags |= CRYPTO_TFM_RES_WEAK_KEY;
return -EINVAL;
}
/* Copy to output */
memcpy(dctx->expkey, tmp, sizeof(dctx->expkey));
return 0;
} }
static void des_encrypt(void *ctx, u8 *dst, const u8 *src) static void des_encrypt(void *ctx, u8 *dst, const u8 *src)
{ {
des_small_fips_encrypt(((struct des_ctx *)ctx)->expkey, dst, src); const u32 *K = ((struct des_ctx *)ctx)->expkey;
const __le32 *s = (const __le32 *)src;
__le32 *d = (__le32 *)dst;
u32 L, R, A, B;
int i;
L = le32_to_cpu(s[0]);
R = le32_to_cpu(s[1]);
IP(L, R, A);
for (i = 0; i < 8; i++) {
ROUND(L, R, A, B, K, 2);
ROUND(R, L, A, B, K, 2);
}
FP(R, L, A);
d[0] = cpu_to_le32(R);
d[1] = cpu_to_le32(L);
} }
static void des_decrypt(void *ctx, u8 *dst, const u8 *src) static void des_decrypt(void *ctx, u8 *dst, const u8 *src)
{ {
des_small_fips_decrypt(((struct des_ctx *)ctx)->expkey, dst, src); const u32 *K = ((struct des_ctx *)ctx)->expkey + DES_EXPKEY_WORDS - 2;
const __le32 *s = (const __le32 *)src;
__le32 *d = (__le32 *)dst;
u32 L, R, A, B;
int i;
L = le32_to_cpu(s[0]);
R = le32_to_cpu(s[1]);
IP(L, R, A);
for (i = 0; i < 8; i++) {
ROUND(L, R, A, B, K, -2);
ROUND(R, L, A, B, K, -2);
}
FP(R, L, A);
d[0] = cpu_to_le32(R);
d[1] = cpu_to_le32(L);
} }
/* /*
* RFC2451: * RFC2451:
* *
* For DES-EDE3, there is no known need to reject weak or * For DES-EDE3, there is no known need to reject weak or
...@@ -1199,44 +859,86 @@ static void des_decrypt(void *ctx, u8 *dst, const u8 *src) ...@@ -1199,44 +859,86 @@ static void des_decrypt(void *ctx, u8 *dst, const u8 *src)
* *
*/ */
static int des3_ede_setkey(void *ctx, const u8 *key, static int des3_ede_setkey(void *ctx, const u8 *key,
unsigned int keylen, u32 *flags) unsigned int keylen, u32 *flags)
{ {
unsigned int i, off; const u32 *K = (const u32 *)key;
struct des3_ede_ctx *dctx = ctx; struct des3_ede_ctx *dctx = ctx;
u32 *expkey = dctx->expkey;
if (!(memcmp(key, &key[DES_KEY_SIZE], DES_KEY_SIZE) && if (unlikely(!((K[0] ^ K[2]) | (K[1] ^ K[3])) ||
memcmp(&key[DES_KEY_SIZE], &key[DES_KEY_SIZE * 2], !((K[2] ^ K[4]) | (K[3] ^ K[5]))))
DES_KEY_SIZE))) { {
*flags |= CRYPTO_TFM_RES_BAD_KEY_SCHED; *flags |= CRYPTO_TFM_RES_BAD_KEY_SCHED;
return -EINVAL; return -EINVAL;
} }
for (i = 0, off = 0; i < 3; i++, off += DES_EXPKEY_WORDS, ekey(expkey, key); expkey += DES_EXPKEY_WORDS; key += DES_KEY_SIZE;
key += DES_KEY_SIZE) { dkey(expkey, key); expkey += DES_EXPKEY_WORDS; key += DES_KEY_SIZE;
int ret = setkey(&dctx->expkey[off], key, DES_KEY_SIZE, flags); ekey(expkey, key);
if (ret < 0)
return ret;
}
return 0; return 0;
} }
static void des3_ede_encrypt(void *ctx, u8 *dst, const u8 *src) static void des3_ede_encrypt(void *ctx, u8 *dst, const u8 *src)
{ {
struct des3_ede_ctx *dctx = ctx; struct des3_ede_ctx *dctx = ctx;
const u32 *K = dctx->expkey;
des_small_fips_encrypt(dctx->expkey, dst, src); const __le32 *s = (const __le32 *)src;
des_small_fips_decrypt(&dctx->expkey[DES_EXPKEY_WORDS], dst, dst); __le32 *d = (__le32 *)dst;
des_small_fips_encrypt(&dctx->expkey[DES_EXPKEY_WORDS * 2], dst, dst); u32 L, R, A, B;
int i;
L = le32_to_cpu(s[0]);
R = le32_to_cpu(s[1]);
IP(L, R, A);
for (i = 0; i < 8; i++) {
ROUND(L, R, A, B, K, 2);
ROUND(R, L, A, B, K, 2);
}
for (i = 0; i < 8; i++) {
ROUND(R, L, A, B, K, 2);
ROUND(L, R, A, B, K, 2);
}
for (i = 0; i < 8; i++) {
ROUND(L, R, A, B, K, 2);
ROUND(R, L, A, B, K, 2);
}
FP(R, L, A);
d[0] = cpu_to_le32(R);
d[1] = cpu_to_le32(L);
} }
static void des3_ede_decrypt(void *ctx, u8 *dst, const u8 *src) static void des3_ede_decrypt(void *ctx, u8 *dst, const u8 *src)
{ {
struct des3_ede_ctx *dctx = ctx; struct des3_ede_ctx *dctx = ctx;
const u32 *K = dctx->expkey + DES3_EDE_EXPKEY_WORDS - 2;
const __le32 *s = (const __le32 *)src;
__le32 *d = (__le32 *)dst;
u32 L, R, A, B;
int i;
L = le32_to_cpu(s[0]);
R = le32_to_cpu(s[1]);
IP(L, R, A);
for (i = 0; i < 8; i++) {
ROUND(L, R, A, B, K, -2);
ROUND(R, L, A, B, K, -2);
}
for (i = 0; i < 8; i++) {
ROUND(R, L, A, B, K, -2);
ROUND(L, R, A, B, K, -2);
}
for (i = 0; i < 8; i++) {
ROUND(L, R, A, B, K, -2);
ROUND(R, L, A, B, K, -2);
}
FP(R, L, A);
des_small_fips_decrypt(&dctx->expkey[DES_EXPKEY_WORDS * 2], dst, src); d[0] = cpu_to_le32(R);
des_small_fips_encrypt(&dctx->expkey[DES_EXPKEY_WORDS], dst, dst); d[1] = cpu_to_le32(L);
des_small_fips_decrypt(dctx->expkey, dst, dst);
} }
static struct crypto_alg des_alg = { static struct crypto_alg des_alg = {
...@@ -1249,7 +951,7 @@ static struct crypto_alg des_alg = { ...@@ -1249,7 +951,7 @@ static struct crypto_alg des_alg = {
.cra_u = { .cipher = { .cra_u = { .cipher = {
.cia_min_keysize = DES_KEY_SIZE, .cia_min_keysize = DES_KEY_SIZE,
.cia_max_keysize = DES_KEY_SIZE, .cia_max_keysize = DES_KEY_SIZE,
.cia_setkey = des_setkey, .cia_setkey = des_setkey,
.cia_encrypt = des_encrypt, .cia_encrypt = des_encrypt,
.cia_decrypt = des_decrypt } } .cia_decrypt = des_decrypt } }
}; };
...@@ -1264,9 +966,9 @@ static struct crypto_alg des3_ede_alg = { ...@@ -1264,9 +966,9 @@ static struct crypto_alg des3_ede_alg = {
.cra_u = { .cipher = { .cra_u = { .cipher = {
.cia_min_keysize = DES3_EDE_KEY_SIZE, .cia_min_keysize = DES3_EDE_KEY_SIZE,
.cia_max_keysize = DES3_EDE_KEY_SIZE, .cia_max_keysize = DES3_EDE_KEY_SIZE,
.cia_setkey = des3_ede_setkey, .cia_setkey = des3_ede_setkey,
.cia_encrypt = des3_ede_encrypt, .cia_encrypt = des3_ede_encrypt,
.cia_decrypt = des3_ede_decrypt } } .cia_decrypt = des3_ede_decrypt } }
}; };
MODULE_ALIAS("des3_ede"); MODULE_ALIAS("des3_ede");
...@@ -1274,7 +976,7 @@ MODULE_ALIAS("des3_ede"); ...@@ -1274,7 +976,7 @@ MODULE_ALIAS("des3_ede");
static int __init init(void) static int __init init(void)
{ {
int ret = 0; int ret = 0;
ret = crypto_register_alg(&des_alg); ret = crypto_register_alg(&des_alg);
if (ret < 0) if (ret < 0)
goto out; goto out;
...@@ -1282,7 +984,7 @@ static int __init init(void) ...@@ -1282,7 +984,7 @@ static int __init init(void)
ret = crypto_register_alg(&des3_ede_alg); ret = crypto_register_alg(&des3_ede_alg);
if (ret < 0) if (ret < 0)
crypto_unregister_alg(&des_alg); crypto_unregister_alg(&des_alg);
out: out:
return ret; return ret;
} }
...@@ -1297,3 +999,4 @@ module_exit(fini); ...@@ -1297,3 +999,4 @@ module_exit(fini);
MODULE_LICENSE("GPL"); MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("DES & Triple DES EDE Cipher Algorithms"); MODULE_DESCRIPTION("DES & Triple DES EDE Cipher Algorithms");
MODULE_AUTHOR("Dag Arne Osvik <da@osvik.no>");
crypto/hmac.c
View file @ 359ea2f1
...@@ -49,8 +49,7 @@ int crypto_alloc_hmac_block(struct crypto_tfm *tfm) ...@@ -49,8 +49,7 @@ int crypto_alloc_hmac_block(struct crypto_tfm *tfm)
void crypto_free_hmac_block(struct crypto_tfm *tfm) void crypto_free_hmac_block(struct crypto_tfm *tfm)
{ {
if (tfm->crt_digest.dit_hmac_block) kfree(tfm->crt_digest.dit_hmac_block);
kfree(tfm->crt_digest.dit_hmac_block);
} }
void crypto_hmac_init(struct crypto_tfm *tfm, u8 *key, unsigned int *keylen) void crypto_hmac_init(struct crypto_tfm *tfm, u8 *key, unsigned int *keylen)
......
crypto/internal.h
View file @ 359ea2f1
...@@ -16,7 +16,7 @@ ...@@ -16,7 +16,7 @@
#include <linux/highmem.h> #include <linux/highmem.h>
#include <linux/interrupt.h> #include <linux/interrupt.h>
#include <linux/init.h> #include <linux/init.h>
#include <linux/kmod.h> #include <linux/kernel.h>
#include <asm/kmap_types.h> #include <asm/kmap_types.h>
extern enum km_type crypto_km_types[]; extern enum km_type crypto_km_types[];
...@@ -42,20 +42,6 @@ static inline void crypto_yield(struct crypto_tfm *tfm) ...@@ -42,20 +42,6 @@ static inline void crypto_yield(struct crypto_tfm *tfm)
cond_resched(); cond_resched();
} }
static inline void *crypto_tfm_ctx(struct crypto_tfm *tfm)
{
return (void *)&tfm[1];
}
struct crypto_alg *crypto_alg_lookup(const char *name);
/* A far more intelligent version of this is planned. For now, just
* try an exact match on the name of the algorithm. */
static inline struct crypto_alg *crypto_alg_mod_lookup(const char *name)
{
return try_then_request_module(crypto_alg_lookup(name), name);
}
#ifdef CONFIG_CRYPTO_HMAC #ifdef CONFIG_CRYPTO_HMAC
int crypto_alloc_hmac_block(struct crypto_tfm *tfm); int crypto_alloc_hmac_block(struct crypto_tfm *tfm);
void crypto_free_hmac_block(struct crypto_tfm *tfm); void crypto_free_hmac_block(struct crypto_tfm *tfm);
...@@ -76,6 +62,33 @@ static inline void crypto_init_proc(void) ...@@ -76,6 +62,33 @@ static inline void crypto_init_proc(void)
{ } { }
#endif #endif
static inline unsigned int crypto_digest_ctxsize(struct crypto_alg *alg,
int flags)
{
return alg->cra_ctxsize;
}
static inline unsigned int crypto_cipher_ctxsize(struct crypto_alg *alg,
int flags)
{
unsigned int len = alg->cra_ctxsize;
switch (flags & CRYPTO_TFM_MODE_MASK) {
case CRYPTO_TFM_MODE_CBC:
len = ALIGN(len, alg->cra_alignmask + 1);
len += alg->cra_blocksize;
break;
}
return len;
}
static inline unsigned int crypto_compress_ctxsize(struct crypto_alg *alg,
int flags)
{
return alg->cra_ctxsize;
}
int crypto_init_digest_flags(struct crypto_tfm *tfm, u32 flags); int crypto_init_digest_flags(struct crypto_tfm *tfm, u32 flags);
int crypto_init_cipher_flags(struct crypto_tfm *tfm, u32 flags); int crypto_init_cipher_flags(struct crypto_tfm *tfm, u32 flags);
int crypto_init_compress_flags(struct crypto_tfm *tfm, u32 flags); int crypto_init_compress_flags(struct crypto_tfm *tfm, u32 flags);
......
crypto/scatterwalk.c
View file @ 359ea2f1
...@@ -100,7 +100,7 @@ void scatterwalk_done(struct scatter_walk *walk, int out, int more) ...@@ -100,7 +100,7 @@ void scatterwalk_done(struct scatter_walk *walk, int out, int more)
int scatterwalk_copychunks(void *buf, struct scatter_walk *walk, int scatterwalk_copychunks(void *buf, struct scatter_walk *walk,
size_t nbytes, int out) size_t nbytes, int out)
{ {
do { while (nbytes > walk->len_this_page) {
memcpy_dir(buf, walk->data, walk->len_this_page, out); memcpy_dir(buf, walk->data, walk->len_this_page, out);
buf += walk->len_this_page; buf += walk->len_this_page;
nbytes -= walk->len_this_page; nbytes -= walk->len_this_page;
...@@ -108,7 +108,7 @@ int scatterwalk_copychunks(void *buf, struct scatter_walk *walk, ...@@ -108,7 +108,7 @@ int scatterwalk_copychunks(void *buf, struct scatter_walk *walk,
scatterwalk_unmap(walk, out); scatterwalk_unmap(walk, out);
scatterwalk_pagedone(walk, out, 1); scatterwalk_pagedone(walk, out, 1);
scatterwalk_map(walk, out); scatterwalk_map(walk, out);
} while (nbytes > walk->len_this_page); }
memcpy_dir(buf, walk->data, nbytes, out); memcpy_dir(buf, walk->data, nbytes, out);
return nbytes; return nbytes;
......
crypto/scatterwalk.h
View file @ 359ea2f1
...@@ -40,10 +40,10 @@ static inline int scatterwalk_samebuf(struct scatter_walk *walk_in, ...@@ -40,10 +40,10 @@ static inline int scatterwalk_samebuf(struct scatter_walk *walk_in,
walk_in->offset == walk_out->offset; walk_in->offset == walk_out->offset;
} }
static inline int scatterwalk_across_pages(struct scatter_walk *walk, static inline unsigned int scatterwalk_clamp(struct scatter_walk *walk,
unsigned int nbytes) unsigned int nbytes)
{ {
return nbytes > walk->len_this_page; return nbytes > walk->len_this_page ? walk->len_this_page : nbytes;
} }
static inline void scatterwalk_advance(struct scatter_walk *walk, static inline void scatterwalk_advance(struct scatter_walk *walk,
...@@ -55,6 +55,12 @@ static inline void scatterwalk_advance(struct scatter_walk *walk, ...@@ -55,6 +55,12 @@ static inline void scatterwalk_advance(struct scatter_walk *walk,
walk->len_this_segment -= nbytes; walk->len_this_segment -= nbytes;
} }
static inline unsigned int scatterwalk_aligned(struct scatter_walk *walk,
unsigned int alignmask)
{
return !(walk->offset & alignmask);
}
void scatterwalk_start(struct scatter_walk *walk, struct scatterlist *sg); void scatterwalk_start(struct scatter_walk *walk, struct scatterlist *sg);
int scatterwalk_copychunks(void *buf, struct scatter_walk *walk, size_t nbytes, int out); int scatterwalk_copychunks(void *buf, struct scatter_walk *walk, size_t nbytes, int out);
void scatterwalk_map(struct scatter_walk *walk, int out); void scatterwalk_map(struct scatter_walk *walk, int out);
......
crypto/serpent.c
View file @ 359ea2f1
...@@ -210,7 +210,6 @@ ...@@ -210,7 +210,6 @@
x4 ^= x2; x4 ^= x2;
struct serpent_ctx { struct serpent_ctx {
u8 iv[SERPENT_BLOCK_SIZE];
u32 expkey[SERPENT_EXPKEY_WORDS]; u32 expkey[SERPENT_EXPKEY_WORDS];
}; };
......
drivers/crypto/padlock-aes.c
View file @ 359ea2f1
...@@ -49,6 +49,7 @@ ...@@ -49,6 +49,7 @@
#include <linux/errno.h> #include <linux/errno.h>
#include <linux/crypto.h> #include <linux/crypto.h>
#include <linux/interrupt.h> #include <linux/interrupt.h>
#include <linux/kernel.h>
#include <asm/byteorder.h> #include <asm/byteorder.h>
#include "padlock.h" #include "padlock.h"
...@@ -59,8 +60,12 @@ ...@@ -59,8 +60,12 @@
#define AES_EXTENDED_KEY_SIZE_B (AES_EXTENDED_KEY_SIZE * sizeof(uint32_t)) #define AES_EXTENDED_KEY_SIZE_B (AES_EXTENDED_KEY_SIZE * sizeof(uint32_t))
struct aes_ctx { struct aes_ctx {
uint32_t e_data[AES_EXTENDED_KEY_SIZE+4]; uint32_t e_data[AES_EXTENDED_KEY_SIZE];
uint32_t d_data[AES_EXTENDED_KEY_SIZE+4]; uint32_t d_data[AES_EXTENDED_KEY_SIZE];
struct {
struct cword encrypt;
struct cword decrypt;
} cword;
uint32_t *E; uint32_t *E;
uint32_t *D; uint32_t *D;
int key_length; int key_length;
...@@ -280,10 +285,15 @@ aes_hw_extkey_available(uint8_t key_len) ...@@ -280,10 +285,15 @@ aes_hw_extkey_available(uint8_t key_len)
return 0; return 0;
} }
static inline struct aes_ctx *aes_ctx(void *ctx)
{
return (struct aes_ctx *)ALIGN((unsigned long)ctx, PADLOCK_ALIGNMENT);
}
static int static int
aes_set_key(void *ctx_arg, const uint8_t *in_key, unsigned int key_len, uint32_t *flags) aes_set_key(void *ctx_arg, const uint8_t *in_key, unsigned int key_len, uint32_t *flags)
{ {
struct aes_ctx *ctx = ctx_arg; struct aes_ctx *ctx = aes_ctx(ctx_arg);
uint32_t i, t, u, v, w; uint32_t i, t, u, v, w;
uint32_t P[AES_EXTENDED_KEY_SIZE]; uint32_t P[AES_EXTENDED_KEY_SIZE];
uint32_t rounds; uint32_t rounds;
...@@ -295,25 +305,36 @@ aes_set_key(void *ctx_arg, const uint8_t *in_key, unsigned int key_len, uint32_t ...@@ -295,25 +305,36 @@ aes_set_key(void *ctx_arg, const uint8_t *in_key, unsigned int key_len, uint32_t
ctx->key_length = key_len; ctx->key_length = key_len;
/*
* If the hardware is capable of generating the extended key
* itself we must supply the plain key for both encryption
* and decryption.
*/
ctx->E = ctx->e_data; ctx->E = ctx->e_data;
ctx->D = ctx->d_data; ctx->D = ctx->e_data;
/* Ensure 16-Bytes alignmentation of keys for VIA PadLock. */
if ((int)(ctx->e_data) & 0x0F)
ctx->E += 4 - (((int)(ctx->e_data) & 0x0F) / sizeof (ctx->e_data[0]));
if ((int)(ctx->d_data) & 0x0F)
ctx->D += 4 - (((int)(ctx->d_data) & 0x0F) / sizeof (ctx->d_data[0]));
E_KEY[0] = uint32_t_in (in_key); E_KEY[0] = uint32_t_in (in_key);
E_KEY[1] = uint32_t_in (in_key + 4); E_KEY[1] = uint32_t_in (in_key + 4);
E_KEY[2] = uint32_t_in (in_key + 8); E_KEY[2] = uint32_t_in (in_key + 8);
E_KEY[3] = uint32_t_in (in_key + 12); E_KEY[3] = uint32_t_in (in_key + 12);
/* Prepare control words. */
memset(&ctx->cword, 0, sizeof(ctx->cword));
ctx->cword.decrypt.encdec = 1;
ctx->cword.encrypt.rounds = 10 + (key_len - 16) / 4;
ctx->cword.decrypt.rounds = ctx->cword.encrypt.rounds;
ctx->cword.encrypt.ksize = (key_len - 16) / 8;
ctx->cword.decrypt.ksize = ctx->cword.encrypt.ksize;
/* Don't generate extended keys if the hardware can do it. */ /* Don't generate extended keys if the hardware can do it. */
if (aes_hw_extkey_available(key_len)) if (aes_hw_extkey_available(key_len))
return 0; return 0;
ctx->D = ctx->d_data;
ctx->cword.encrypt.keygen = 1;
ctx->cword.decrypt.keygen = 1;
switch (key_len) { switch (key_len) {
case 16: case 16:
t = E_KEY[3]; t = E_KEY[3];
...@@ -369,10 +390,9 @@ aes_set_key(void *ctx_arg, const uint8_t *in_key, unsigned int key_len, uint32_t ...@@ -369,10 +390,9 @@ aes_set_key(void *ctx_arg, const uint8_t *in_key, unsigned int key_len, uint32_t
/* ====== Encryption/decryption routines ====== */ /* ====== Encryption/decryption routines ====== */
/* This is the real call to PadLock. */ /* These are the real call to PadLock. */
static inline void static inline void padlock_xcrypt_ecb(const u8 *input, u8 *output, void *key,
padlock_xcrypt_ecb(uint8_t *input, uint8_t *output, uint8_t *key, void *control_word, u32 count)
void *control_word, uint32_t count)
{ {
asm volatile ("pushfl; popfl"); /* enforce key reload. */ asm volatile ("pushfl; popfl"); /* enforce key reload. */
asm volatile (".byte 0xf3,0x0f,0xa7,0xc8" /* rep xcryptecb */ asm volatile (".byte 0xf3,0x0f,0xa7,0xc8" /* rep xcryptecb */
...@@ -380,60 +400,70 @@ padlock_xcrypt_ecb(uint8_t *input, uint8_t *output, uint8_t *key, ...@@ -380,60 +400,70 @@ padlock_xcrypt_ecb(uint8_t *input, uint8_t *output, uint8_t *key,
: "d"(control_word), "b"(key), "c"(count)); : "d"(control_word), "b"(key), "c"(count));
} }
static void static inline u8 *padlock_xcrypt_cbc(const u8 *input, u8 *output, void *key,
aes_padlock(void *ctx_arg, uint8_t *out_arg, const uint8_t *in_arg, int encdec) u8 *iv, void *control_word, u32 count)
{ {
/* Don't blindly modify this structure - the items must /* Enforce key reload. */
fit on 16-Bytes boundaries! */ asm volatile ("pushfl; popfl");
struct padlock_xcrypt_data { /* rep xcryptcbc */
uint8_t buf[AES_BLOCK_SIZE]; asm volatile (".byte 0xf3,0x0f,0xa7,0xd0"
union cword cword; : "+S" (input), "+D" (output), "+a" (iv)
}; : "d" (control_word), "b" (key), "c" (count));
return iv;
struct aes_ctx *ctx = ctx_arg;
char bigbuf[sizeof(struct padlock_xcrypt_data) + 16];
struct padlock_xcrypt_data *data;
void *key;
/* Place 'data' at the first 16-Bytes aligned address in 'bigbuf'. */
if (((long)bigbuf) & 0x0F)
data = (void*)(bigbuf + 16 - ((long)bigbuf & 0x0F));
else
data = (void*)bigbuf;
/* Prepare Control word. */
memset (data, 0, sizeof(struct padlock_xcrypt_data));
data->cword.b.encdec = !encdec; /* in the rest of cryptoapi ENC=1/DEC=0 */
data->cword.b.rounds = 10 + (ctx->key_length - 16) / 4;
data->cword.b.ksize = (ctx->key_length - 16) / 8;
/* Is the hardware capable to generate the extended key? */
if (!aes_hw_extkey_available(ctx->key_length))
data->cword.b.keygen = 1;
/* ctx->E starts with a plain key - if the hardware is capable
to generate the extended key itself we must supply
the plain key for both Encryption and Decryption. */
if (encdec == CRYPTO_DIR_ENCRYPT || data->cword.b.keygen == 0)
key = ctx->E;
else
key = ctx->D;
memcpy(data->buf, in_arg, AES_BLOCK_SIZE);
padlock_xcrypt_ecb(data->buf, data->buf, key, &data->cword, 1);
memcpy(out_arg, data->buf, AES_BLOCK_SIZE);
} }
static void static void
aes_encrypt(void *ctx_arg, uint8_t *out, const uint8_t *in) aes_encrypt(void *ctx_arg, uint8_t *out, const uint8_t *in)
{ {
aes_padlock(ctx_arg, out, in, CRYPTO_DIR_ENCRYPT); struct aes_ctx *ctx = aes_ctx(ctx_arg);
padlock_xcrypt_ecb(in, out, ctx->E, &ctx->cword.encrypt, 1);
} }
static void static void
aes_decrypt(void *ctx_arg, uint8_t *out, const uint8_t *in) aes_decrypt(void *ctx_arg, uint8_t *out, const uint8_t *in)
{ {
aes_padlock(ctx_arg, out, in, CRYPTO_DIR_DECRYPT); struct aes_ctx *ctx = aes_ctx(ctx_arg);
padlock_xcrypt_ecb(in, out, ctx->D, &ctx->cword.decrypt, 1);
}
static unsigned int aes_encrypt_ecb(const struct cipher_desc *desc, u8 *out,
const u8 *in, unsigned int nbytes)
{
struct aes_ctx *ctx = aes_ctx(crypto_tfm_ctx(desc->tfm));
padlock_xcrypt_ecb(in, out, ctx->E, &ctx->cword.encrypt,
nbytes / AES_BLOCK_SIZE);
return nbytes & ~(AES_BLOCK_SIZE - 1);
}
static unsigned int aes_decrypt_ecb(const struct cipher_desc *desc, u8 *out,
const u8 *in, unsigned int nbytes)
{
struct aes_ctx *ctx = aes_ctx(crypto_tfm_ctx(desc->tfm));
padlock_xcrypt_ecb(in, out, ctx->D, &ctx->cword.decrypt,
nbytes / AES_BLOCK_SIZE);
return nbytes & ~(AES_BLOCK_SIZE - 1);
}
static unsigned int aes_encrypt_cbc(const struct cipher_desc *desc, u8 *out,
const u8 *in, unsigned int nbytes)
{
struct aes_ctx *ctx = aes_ctx(crypto_tfm_ctx(desc->tfm));
u8 *iv;
iv = padlock_xcrypt_cbc(in, out, ctx->E, desc->info,
&ctx->cword.encrypt, nbytes / AES_BLOCK_SIZE);
memcpy(desc->info, iv, AES_BLOCK_SIZE);
return nbytes & ~(AES_BLOCK_SIZE - 1);
}
static unsigned int aes_decrypt_cbc(const struct cipher_desc *desc, u8 *out,
const u8 *in, unsigned int nbytes)
{
struct aes_ctx *ctx = aes_ctx(crypto_tfm_ctx(desc->tfm));
padlock_xcrypt_cbc(in, out, ctx->D, desc->info, &ctx->cword.decrypt,
nbytes / AES_BLOCK_SIZE);
return nbytes & ~(AES_BLOCK_SIZE - 1);
} }
static struct crypto_alg aes_alg = { static struct crypto_alg aes_alg = {
...@@ -441,6 +471,7 @@ static struct crypto_alg aes_alg = { ...@@ -441,6 +471,7 @@ static struct crypto_alg aes_alg = {
.cra_flags = CRYPTO_ALG_TYPE_CIPHER, .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
.cra_blocksize = AES_BLOCK_SIZE, .cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct aes_ctx), .cra_ctxsize = sizeof(struct aes_ctx),
.cra_alignmask = PADLOCK_ALIGNMENT - 1,
.cra_module = THIS_MODULE, .cra_module = THIS_MODULE,
.cra_list = LIST_HEAD_INIT(aes_alg.cra_list), .cra_list = LIST_HEAD_INIT(aes_alg.cra_list),
.cra_u = { .cra_u = {
...@@ -449,7 +480,11 @@ static struct crypto_alg aes_alg = { ...@@ -449,7 +480,11 @@ static struct crypto_alg aes_alg = {
.cia_max_keysize = AES_MAX_KEY_SIZE, .cia_max_keysize = AES_MAX_KEY_SIZE,
.cia_setkey = aes_set_key, .cia_setkey = aes_set_key,
.cia_encrypt = aes_encrypt, .cia_encrypt = aes_encrypt,
.cia_decrypt = aes_decrypt .cia_decrypt = aes_decrypt,
.cia_encrypt_ecb = aes_encrypt_ecb,
.cia_decrypt_ecb = aes_decrypt_ecb,
.cia_encrypt_cbc = aes_encrypt_cbc,
.cia_decrypt_cbc = aes_decrypt_cbc,
} }
} }
}; };
......
drivers/crypto/padlock.h
View file @ 359ea2f1
...@@ -13,18 +13,18 @@ ...@@ -13,18 +13,18 @@
#ifndef _CRYPTO_PADLOCK_H #ifndef _CRYPTO_PADLOCK_H
#define _CRYPTO_PADLOCK_H #define _CRYPTO_PADLOCK_H
#define PADLOCK_ALIGNMENT 16
/* Control word. */ /* Control word. */
union cword { struct cword {
uint32_t cword[4]; int __attribute__ ((__packed__))
struct { rounds:4,
int rounds:4; algo:3,
int algo:3; keygen:1,
int keygen:1; interm:1,
int interm:1; encdec:1,
int encdec:1; ksize:2;
int ksize:2; } __attribute__ ((__aligned__(PADLOCK_ALIGNMENT)));
} b;
};
#define PFX "padlock: " #define PFX "padlock: "
......
include/linux/crypto.h
View file @ 359ea2f1
...@@ -61,6 +61,15 @@ ...@@ -61,6 +61,15 @@
#define CRYPTO_DIR_DECRYPT 0 #define CRYPTO_DIR_DECRYPT 0
struct scatterlist; struct scatterlist;
struct crypto_tfm;
struct cipher_desc {
struct crypto_tfm *tfm;
void (*crfn)(void *ctx, u8 *dst, const u8 *src);
unsigned int (*prfn)(const struct cipher_desc *desc, u8 *dst,
const u8 *src, unsigned int nbytes);
void *info;
};
/* /*
* Algorithms: modular crypto algorithm implementations, managed * Algorithms: modular crypto algorithm implementations, managed
...@@ -73,6 +82,19 @@ struct cipher_alg { ...@@ -73,6 +82,19 @@ struct cipher_alg {
unsigned int keylen, u32 *flags); unsigned int keylen, u32 *flags);
void (*cia_encrypt)(void *ctx, u8 *dst, const u8 *src); void (*cia_encrypt)(void *ctx, u8 *dst, const u8 *src);
void (*cia_decrypt)(void *ctx, u8 *dst, const u8 *src); void (*cia_decrypt)(void *ctx, u8 *dst, const u8 *src);
unsigned int (*cia_encrypt_ecb)(const struct cipher_desc *desc,
u8 *dst, const u8 *src,
unsigned int nbytes);
unsigned int (*cia_decrypt_ecb)(const struct cipher_desc *desc,
u8 *dst, const u8 *src,
unsigned int nbytes);
unsigned int (*cia_encrypt_cbc)(const struct cipher_desc *desc,
u8 *dst, const u8 *src,
unsigned int nbytes);
unsigned int (*cia_decrypt_cbc)(const struct cipher_desc *desc,
u8 *dst, const u8 *src,
unsigned int nbytes);
}; };
struct digest_alg { struct digest_alg {
...@@ -102,6 +124,7 @@ struct crypto_alg { ...@@ -102,6 +124,7 @@ struct crypto_alg {
u32 cra_flags; u32 cra_flags;
unsigned int cra_blocksize; unsigned int cra_blocksize;
unsigned int cra_ctxsize; unsigned int cra_ctxsize;
unsigned int cra_alignmask;
const char cra_name[CRYPTO_MAX_ALG_NAME]; const char cra_name[CRYPTO_MAX_ALG_NAME];
union { union {
...@@ -136,7 +159,6 @@ static inline int crypto_alg_available(const char *name, u32 flags) ...@@ -136,7 +159,6 @@ static inline int crypto_alg_available(const char *name, u32 flags)
* and core processing logic. Managed via crypto_alloc_tfm() and * and core processing logic. Managed via crypto_alloc_tfm() and
* crypto_free_tfm(), as well as the various helpers below. * crypto_free_tfm(), as well as the various helpers below.
*/ */
struct crypto_tfm;
struct cipher_tfm { struct cipher_tfm {
void *cit_iv; void *cit_iv;
...@@ -266,6 +288,16 @@ static inline unsigned int crypto_tfm_alg_digestsize(struct crypto_tfm *tfm) ...@@ -266,6 +288,16 @@ static inline unsigned int crypto_tfm_alg_digestsize(struct crypto_tfm *tfm)
return tfm->__crt_alg->cra_digest.dia_digestsize; return tfm->__crt_alg->cra_digest.dia_digestsize;
} }
static inline unsigned int crypto_tfm_alg_alignmask(struct crypto_tfm *tfm)
{
return tfm->__crt_alg->cra_alignmask;
}
static inline void *crypto_tfm_ctx(struct crypto_tfm *tfm)
{
return (void *)&tfm[1];
}
/* /*
* API wrappers. * API wrappers.
*/ */
......
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