[CRYPTO]: Add blowfish algorithm.

Documentation/crypto/api-intro.txt

@@ -101,6 +101,10 @@ will not be included in the mainline until around 2011), and be based
 on a recognized standard and/or have been subjected to appropriate
 peer review.
 
+Also check for any RFCs which may relate to the use of specific algorithms,
+as well as general application notes such as RFC2451 ("The ESP CBC-Mode
+Cipher Algorithms").
+
 
 BUGS
 
@@ -164,6 +168,7 @@ Original developers of the initial set of crypto algorithms:
   Andrew Tridgell and Steve French (MD4)
   Colin Plumb (MD5)
   Steve Raid (SHA1)
+  Jean-Luc Cooke (SHA256)
   Kazunori Miyazawa / USAGI (HMAC)
 
 The DES code was subsequently redeveloped by:
@@ -172,6 +177,11 @@ The DES code was subsequently redeveloped by:
   Gisle Sælensminde
   Niels Möller
 
+The Blowfish code was subsequently redeveloped by:
+  Herbert Valerio Riedel
+  Kyle McMartin
+
+
 Please send any credits updates or corrections to:
 James Morris <jmorris@intercode.com.au>
 

crypto/Kconfig

@@ -32,18 +32,16 @@ config CRYPTO_SHA1
 	tristate "SHA1 digest algorithm"
 	depends on CRYPTO
 	help
-	  SHA-1 secure hash standard (FIPS 180-1).
+	  SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).
 
 config CRYPTO_SHA256
 	tristate "SHA256 digest algorithm"
 	depends on CRYPTO
 	help
-	  SHA256 secure hash standard.
+	  SHA256 secure hash standard (DFIPS 180-2).
 	  
 	  This version of SHA implements a 256 bit hash with 128 bits of
-	  security against collision attacks.  It is described in:
-	  http://csrc.nist.gov/cryptval/shs/sha256-384-512.pdf
-	  
+	  security against collision attacks.
 
 config CRYPTO_DES
 	tristate "DES and Triple DES EDE cipher algorithms"
@@ -51,6 +49,19 @@ config CRYPTO_DES
 	help
 	  DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
 
+config CRYPTO_BLOWFISH
+	tristate "Blowfish cipher algorithm"
+	depends on CRYPTO
+	help
+	  Blowfish cipher algorithm, by Bruce Schneier.
+	  
+	  This is a fast cipher which can use variable length key from 32
+	  bits to 448 bits.  It's fast, simple and specifically designed for
+	  use on "large microprocessors".
+	  
+	  See also:
+	  http://www.counterpane.com/blowfish.html
+
 config CRYPTO_TEST
 	tristate "Testing module"
 	depends on CRYPTO

crypto/Makefile

@@ -14,6 +14,7 @@ obj-$(CONFIG_CRYPTO_MD5) += md5.o
 obj-$(CONFIG_CRYPTO_SHA1) += sha1.o
 obj-$(CONFIG_CRYPTO_SHA256) += sha256.o
 obj-$(CONFIG_CRYPTO_DES) += des.o
+obj-$(CONFIG_CRYPTO_BLOWFISH) += blowfish.o
 
 obj-$(CONFIG_CRYPTO_TEST) += tcrypt.o
 

crypto/api.c

@@ -262,19 +262,23 @@ static int c_show(struct seq_file *m, void *p)
 {
 	struct crypto_alg *alg = (struct crypto_alg *)p;
 	
-	seq_printf(m, "name       : %s\n", alg->cra_name);
-	seq_printf(m, "module     : %s\n", alg->cra_module ?
+	seq_printf(m, "name         : %s\n", alg->cra_name);
+	seq_printf(m, "module       : %s\n", alg->cra_module ?
 					alg->cra_module->name : "[static]");
-	seq_printf(m, "blocksize  : %u\n", alg->cra_blocksize);
+	seq_printf(m, "blocksize    : %u\n", alg->cra_blocksize);
 	
 	switch (alg->cra_flags & CRYPTO_ALG_TYPE_MASK) {
 	case CRYPTO_ALG_TYPE_CIPHER:
-		seq_printf(m, "keysize    : %u\n", alg->cra_cipher.cia_keysize);
-		seq_printf(m, "ivsize     : %u\n", alg->cra_cipher.cia_ivsize);
+		seq_printf(m, "min keysize  : %u\n",
+					alg->cra_cipher.cia_min_keysize);
+		seq_printf(m, "max keysize  : %u\n",
+					alg->cra_cipher.cia_max_keysize);
+		seq_printf(m, "ivsize       : %u\n",
+					alg->cra_cipher.cia_ivsize);
 		break;
 		
 	case CRYPTO_ALG_TYPE_DIGEST:
-		seq_printf(m, "digestsize : %u\n",
+		seq_printf(m, "digestsize   : %u\n",
 		           alg->cra_digest.dia_digestsize);
 		break;
 	}

crypto/blowfish.c

+/* 
+ * Cryptographic API.
+ *
+ * Blowfish Cipher Algorithm, by Bruce Schneier.
+ * http://www.counterpane.com/blowfish.html
+ * 
+ * Adapated from Kerneli implementation.
+ * 
+ * Copyright (c) Herbert Valerio Riedel <hvr@hvrlab.org>
+ * Copyright (c) Kyle McMartin <kyle@debian.org>
+ * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
+ *
+ * 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.
+ *
+ */
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/mm.h>
+#include <asm/scatterlist.h>
+#include <linux/crypto.h>
+
+#define BF_BLOCK_SIZE 8
+#define BF_MIN_KEY_SIZE 8
+#define BF_MAX_KEY_SIZE 56
+
+struct bf_ctx {
+	u32 p[18];
+	u32 s[1024];
+};
+
+const static u32 bf_pbox[16 + 2] = {
+	0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344,
+	0xa4093822, 0x299f31d0, 0x082efa98, 0xec4e6c89,
+	0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c,
+	0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917,
+	0x9216d5d9, 0x8979fb1b,
+};
+
+const static u32 bf_sbox[256 * 4] = {
+	0xd1310ba6, 0x98dfb5ac, 0x2ffd72db, 0xd01adfb7,
+	0xb8e1afed, 0x6a267e96, 0xba7c9045, 0xf12c7f99,
+	0x24a19947, 0xb3916cf7, 0x0801f2e2, 0x858efc16,
+	0x636920d8, 0x71574e69, 0xa458fea3, 0xf4933d7e,
+	0x0d95748f, 0x728eb658, 0x718bcd58, 0x82154aee,
+	0x7b54a41d, 0xc25a59b5, 0x9c30d539, 0x2af26013,
+	0xc5d1b023, 0x286085f0, 0xca417918, 0xb8db38ef,
+	0x8e79dcb0, 0x603a180e, 0x6c9e0e8b, 0xb01e8a3e,
+	0xd71577c1, 0xbd314b27, 0x78af2fda, 0x55605c60,
+	0xe65525f3, 0xaa55ab94, 0x57489862, 0x63e81440,
+	0x55ca396a, 0x2aab10b6, 0xb4cc5c34, 0x1141e8ce,
+	0xa15486af, 0x7c72e993, 0xb3ee1411, 0x636fbc2a,
+	0x2ba9c55d, 0x741831f6, 0xce5c3e16, 0x9b87931e,
+	0xafd6ba33, 0x6c24cf5c, 0x7a325381, 0x28958677,
+	0x3b8f4898, 0x6b4bb9af, 0xc4bfe81b, 0x66282193,
+	0x61d809cc, 0xfb21a991, 0x487cac60, 0x5dec8032,
+	0xef845d5d, 0xe98575b1, 0xdc262302, 0xeb651b88,
+	0x23893e81, 0xd396acc5, 0x0f6d6ff3, 0x83f44239,
+	0x2e0b4482, 0xa4842004, 0x69c8f04a, 0x9e1f9b5e,
+	0x21c66842, 0xf6e96c9a, 0x670c9c61, 0xabd388f0,
+	0x6a51a0d2, 0xd8542f68, 0x960fa728, 0xab5133a3,
+	0x6eef0b6c, 0x137a3be4, 0xba3bf050, 0x7efb2a98,
+	0xa1f1651d, 0x39af0176, 0x66ca593e, 0x82430e88,
+	0x8cee8619, 0x456f9fb4, 0x7d84a5c3, 0x3b8b5ebe,
+	0xe06f75d8, 0x85c12073, 0x401a449f, 0x56c16aa6,
+	0x4ed3aa62, 0x363f7706, 0x1bfedf72, 0x429b023d,
+	0x37d0d724, 0xd00a1248, 0xdb0fead3, 0x49f1c09b,
+	0x075372c9, 0x80991b7b, 0x25d479d8, 0xf6e8def7,
+	0xe3fe501a, 0xb6794c3b, 0x976ce0bd, 0x04c006ba,
+	0xc1a94fb6, 0x409f60c4, 0x5e5c9ec2, 0x196a2463,
+	0x68fb6faf, 0x3e6c53b5, 0x1339b2eb, 0x3b52ec6f,
+	0x6dfc511f, 0x9b30952c, 0xcc814544, 0xaf5ebd09,
+	0xbee3d004, 0xde334afd, 0x660f2807, 0x192e4bb3,
+	0xc0cba857, 0x45c8740f, 0xd20b5f39, 0xb9d3fbdb,
+	0x5579c0bd, 0x1a60320a, 0xd6a100c6, 0x402c7279,
+	0x679f25fe, 0xfb1fa3cc, 0x8ea5e9f8, 0xdb3222f8,
+	0x3c7516df, 0xfd616b15, 0x2f501ec8, 0xad0552ab,
+	0x323db5fa, 0xfd238760, 0x53317b48, 0x3e00df82,
+	0x9e5c57bb, 0xca6f8ca0, 0x1a87562e, 0xdf1769db,
+	0xd542a8f6, 0x287effc3, 0xac6732c6, 0x8c4f5573,
+	0x695b27b0, 0xbbca58c8, 0xe1ffa35d, 0xb8f011a0,
+	0x10fa3d98, 0xfd2183b8, 0x4afcb56c, 0x2dd1d35b,
+	0x9a53e479, 0xb6f84565, 0xd28e49bc, 0x4bfb9790,
+	0xe1ddf2da, 0xa4cb7e33, 0x62fb1341, 0xcee4c6e8,
+	0xef20cada, 0x36774c01, 0xd07e9efe, 0x2bf11fb4,
+	0x95dbda4d, 0xae909198, 0xeaad8e71, 0x6b93d5a0,
+	0xd08ed1d0, 0xafc725e0, 0x8e3c5b2f, 0x8e7594b7,
+	0x8ff6e2fb, 0xf2122b64, 0x8888b812, 0x900df01c,
+	0x4fad5ea0, 0x688fc31c, 0xd1cff191, 0xb3a8c1ad,
+	0x2f2f2218, 0xbe0e1777, 0xea752dfe, 0x8b021fa1,
+	0xe5a0cc0f, 0xb56f74e8, 0x18acf3d6, 0xce89e299,
+	0xb4a84fe0, 0xfd13e0b7, 0x7cc43b81, 0xd2ada8d9,
+	0x165fa266, 0x80957705, 0x93cc7314, 0x211a1477,
+	0xe6ad2065, 0x77b5fa86, 0xc75442f5, 0xfb9d35cf,
+	0xebcdaf0c, 0x7b3e89a0, 0xd6411bd3, 0xae1e7e49,
+	0x00250e2d, 0x2071b35e, 0x226800bb, 0x57b8e0af,
+	0x2464369b, 0xf009b91e, 0x5563911d, 0x59dfa6aa,
+	0x78c14389, 0xd95a537f, 0x207d5ba2, 0x02e5b9c5,
+	0x83260376, 0x6295cfa9, 0x11c81968, 0x4e734a41,
+	0xb3472dca, 0x7b14a94a, 0x1b510052, 0x9a532915,
+	0xd60f573f, 0xbc9bc6e4, 0x2b60a476, 0x81e67400,
+	0x08ba6fb5, 0x571be91f, 0xf296ec6b, 0x2a0dd915,
+	0xb6636521, 0xe7b9f9b6, 0xff34052e, 0xc5855664,
+	0x53b02d5d, 0xa99f8fa1, 0x08ba4799, 0x6e85076a,
+	0x4b7a70e9, 0xb5b32944, 0xdb75092e, 0xc4192623,
+	0xad6ea6b0, 0x49a7df7d, 0x9cee60b8, 0x8fedb266,
+	0xecaa8c71, 0x699a17ff, 0x5664526c, 0xc2b19ee1,
+	0x193602a5, 0x75094c29, 0xa0591340, 0xe4183a3e,
+	0x3f54989a, 0x5b429d65, 0x6b8fe4d6, 0x99f73fd6,
+	0xa1d29c07, 0xefe830f5, 0x4d2d38e6, 0xf0255dc1,
+	0x4cdd2086, 0x8470eb26, 0x6382e9c6, 0x021ecc5e,
+	0x09686b3f, 0x3ebaefc9, 0x3c971814, 0x6b6a70a1,
+	0x687f3584, 0x52a0e286, 0xb79c5305, 0xaa500737,
+	0x3e07841c, 0x7fdeae5c, 0x8e7d44ec, 0x5716f2b8,
+	0xb03ada37, 0xf0500c0d, 0xf01c1f04, 0x0200b3ff,
+	0xae0cf51a, 0x3cb574b2, 0x25837a58, 0xdc0921bd,
+	0xd19113f9, 0x7ca92ff6, 0x94324773, 0x22f54701,
+	0x3ae5e581, 0x37c2dadc, 0xc8b57634, 0x9af3dda7,
+	0xa9446146, 0x0fd0030e, 0xecc8c73e, 0xa4751e41,
+	0xe238cd99, 0x3bea0e2f, 0x3280bba1, 0x183eb331,
+	0x4e548b38, 0x4f6db908, 0x6f420d03, 0xf60a04bf,
+	0x2cb81290, 0x24977c79, 0x5679b072, 0xbcaf89af,
+	0xde9a771f, 0xd9930810, 0xb38bae12, 0xdccf3f2e,
+	0x5512721f, 0x2e6b7124, 0x501adde6, 0x9f84cd87,
+	0x7a584718, 0x7408da17, 0xbc9f9abc, 0xe94b7d8c,
+	0xec7aec3a, 0xdb851dfa, 0x63094366, 0xc464c3d2,
+	0xef1c1847, 0x3215d908, 0xdd433b37, 0x24c2ba16,
+	0x12a14d43, 0x2a65c451, 0x50940002, 0x133ae4dd,
+	0x71dff89e, 0x10314e55, 0x81ac77d6, 0x5f11199b,
+	0x043556f1, 0xd7a3c76b, 0x3c11183b, 0x5924a509,
+	0xf28fe6ed, 0x97f1fbfa, 0x9ebabf2c, 0x1e153c6e,
+	0x86e34570, 0xeae96fb1, 0x860e5e0a, 0x5a3e2ab3,
+	0x771fe71c, 0x4e3d06fa, 0x2965dcb9, 0x99e71d0f,
+	0x803e89d6, 0x5266c825, 0x2e4cc978, 0x9c10b36a,
+	0xc6150eba, 0x94e2ea78, 0xa5fc3c53, 0x1e0a2df4,
+	0xf2f74ea7, 0x361d2b3d, 0x1939260f, 0x19c27960,
+	0x5223a708, 0xf71312b6, 0xebadfe6e, 0xeac31f66,
+	0xe3bc4595, 0xa67bc883, 0xb17f37d1, 0x018cff28,
+	0xc332ddef, 0xbe6c5aa5, 0x65582185, 0x68ab9802,
+	0xeecea50f, 0xdb2f953b, 0x2aef7dad, 0x5b6e2f84,
+	0x1521b628, 0x29076170, 0xecdd4775, 0x619f1510,
+	0x13cca830, 0xeb61bd96, 0x0334fe1e, 0xaa0363cf,
+	0xb5735c90, 0x4c70a239, 0xd59e9e0b, 0xcbaade14,
+	0xeecc86bc, 0x60622ca7, 0x9cab5cab, 0xb2f3846e,
+	0x648b1eaf, 0x19bdf0ca, 0xa02369b9, 0x655abb50,
+	0x40685a32, 0x3c2ab4b3, 0x319ee9d5, 0xc021b8f7,
+	0x9b540b19, 0x875fa099, 0x95f7997e, 0x623d7da8,
+	0xf837889a, 0x97e32d77, 0x11ed935f, 0x16681281,
+	0x0e358829, 0xc7e61fd6, 0x96dedfa1, 0x7858ba99,
+	0x57f584a5, 0x1b227263, 0x9b83c3ff, 0x1ac24696,
+	0xcdb30aeb, 0x532e3054, 0x8fd948e4, 0x6dbc3128,
+	0x58ebf2ef, 0x34c6ffea, 0xfe28ed61, 0xee7c3c73,
+	0x5d4a14d9, 0xe864b7e3, 0x42105d14, 0x203e13e0,
+	0x45eee2b6, 0xa3aaabea, 0xdb6c4f15, 0xfacb4fd0,
+	0xc742f442, 0xef6abbb5, 0x654f3b1d, 0x41cd2105,
+	0xd81e799e, 0x86854dc7, 0xe44b476a, 0x3d816250,
+	0xcf62a1f2, 0x5b8d2646, 0xfc8883a0, 0xc1c7b6a3,
+	0x7f1524c3, 0x69cb7492, 0x47848a0b, 0x5692b285,
+	0x095bbf00, 0xad19489d, 0x1462b174, 0x23820e00,
+	0x58428d2a, 0x0c55f5ea, 0x1dadf43e, 0x233f7061,
+	0x3372f092, 0x8d937e41, 0xd65fecf1, 0x6c223bdb,
+	0x7cde3759, 0xcbee7460, 0x4085f2a7, 0xce77326e,
+	0xa6078084, 0x19f8509e, 0xe8efd855, 0x61d99735,
+	0xa969a7aa, 0xc50c06c2, 0x5a04abfc, 0x800bcadc,
+	0x9e447a2e, 0xc3453484, 0xfdd56705, 0x0e1e9ec9,
+	0xdb73dbd3, 0x105588cd, 0x675fda79, 0xe3674340,
+	0xc5c43465, 0x713e38d8, 0x3d28f89e, 0xf16dff20,
+	0x153e21e7, 0x8fb03d4a, 0xe6e39f2b, 0xdb83adf7,
+	0xe93d5a68, 0x948140f7, 0xf64c261c, 0x94692934,
+	0x411520f7, 0x7602d4f7, 0xbcf46b2e, 0xd4a20068,
+	0xd4082471, 0x3320f46a, 0x43b7d4b7, 0x500061af,
+	0x1e39f62e, 0x97244546, 0x14214f74, 0xbf8b8840,
+	0x4d95fc1d, 0x96b591af, 0x70f4ddd3, 0x66a02f45,
+	0xbfbc09ec, 0x03bd9785, 0x7fac6dd0, 0x31cb8504,
+	0x96eb27b3, 0x55fd3941, 0xda2547e6, 0xabca0a9a,
+	0x28507825, 0x530429f4, 0x0a2c86da, 0xe9b66dfb,
+	0x68dc1462, 0xd7486900, 0x680ec0a4, 0x27a18dee,
+	0x4f3ffea2, 0xe887ad8c, 0xb58ce006, 0x7af4d6b6,
+	0xaace1e7c, 0xd3375fec, 0xce78a399, 0x406b2a42,
+	0x20fe9e35, 0xd9f385b9, 0xee39d7ab, 0x3b124e8b,
+	0x1dc9faf7, 0x4b6d1856, 0x26a36631, 0xeae397b2,
+	0x3a6efa74, 0xdd5b4332, 0x6841e7f7, 0xca7820fb,
+	0xfb0af54e, 0xd8feb397, 0x454056ac, 0xba489527,
+	0x55533a3a, 0x20838d87, 0xfe6ba9b7, 0xd096954b,
+	0x55a867bc, 0xa1159a58, 0xcca92963, 0x99e1db33,
+	0xa62a4a56, 0x3f3125f9, 0x5ef47e1c, 0x9029317c,
+	0xfdf8e802, 0x04272f70, 0x80bb155c, 0x05282ce3,
+	0x95c11548, 0xe4c66d22, 0x48c1133f, 0xc70f86dc,
+	0x07f9c9ee, 0x41041f0f, 0x404779a4, 0x5d886e17,
+	0x325f51eb, 0xd59bc0d1, 0xf2bcc18f, 0x41113564,
+	0x257b7834, 0x602a9c60, 0xdff8e8a3, 0x1f636c1b,
+	0x0e12b4c2, 0x02e1329e, 0xaf664fd1, 0xcad18115,
+	0x6b2395e0, 0x333e92e1, 0x3b240b62, 0xeebeb922,
+	0x85b2a20e, 0xe6ba0d99, 0xde720c8c, 0x2da2f728,
+	0xd0127845, 0x95b794fd, 0x647d0862, 0xe7ccf5f0,
+	0x5449a36f, 0x877d48fa, 0xc39dfd27, 0xf33e8d1e,
+	0x0a476341, 0x992eff74, 0x3a6f6eab, 0xf4f8fd37,
+	0xa812dc60, 0xa1ebddf8, 0x991be14c, 0xdb6e6b0d,
+	0xc67b5510, 0x6d672c37, 0x2765d43b, 0xdcd0e804,
+	0xf1290dc7, 0xcc00ffa3, 0xb5390f92, 0x690fed0b,
+	0x667b9ffb, 0xcedb7d9c, 0xa091cf0b, 0xd9155ea3,
+	0xbb132f88, 0x515bad24, 0x7b9479bf, 0x763bd6eb,
+	0x37392eb3, 0xcc115979, 0x8026e297, 0xf42e312d,
+	0x6842ada7, 0xc66a2b3b, 0x12754ccc, 0x782ef11c,
+	0x6a124237, 0xb79251e7, 0x06a1bbe6, 0x4bfb6350,
+	0x1a6b1018, 0x11caedfa, 0x3d25bdd8, 0xe2e1c3c9,
+	0x44421659, 0x0a121386, 0xd90cec6e, 0xd5abea2a,
+	0x64af674e, 0xda86a85f, 0xbebfe988, 0x64e4c3fe,
+	0x9dbc8057, 0xf0f7c086, 0x60787bf8, 0x6003604d,
+	0xd1fd8346, 0xf6381fb0, 0x7745ae04, 0xd736fccc,
+	0x83426b33, 0xf01eab71, 0xb0804187, 0x3c005e5f,
+	0x77a057be, 0xbde8ae24, 0x55464299, 0xbf582e61,
+	0x4e58f48f, 0xf2ddfda2, 0xf474ef38, 0x8789bdc2,
+	0x5366f9c3, 0xc8b38e74, 0xb475f255, 0x46fcd9b9,
+	0x7aeb2661, 0x8b1ddf84, 0x846a0e79, 0x915f95e2,
+	0x466e598e, 0x20b45770, 0x8cd55591, 0xc902de4c,
+	0xb90bace1, 0xbb8205d0, 0x11a86248, 0x7574a99e,
+	0xb77f19b6, 0xe0a9dc09, 0x662d09a1, 0xc4324633,
+	0xe85a1f02, 0x09f0be8c, 0x4a99a025, 0x1d6efe10,
+	0x1ab93d1d, 0x0ba5a4df, 0xa186f20f, 0x2868f169,
+	0xdcb7da83, 0x573906fe, 0xa1e2ce9b, 0x4fcd7f52,
+	0x50115e01, 0xa70683fa, 0xa002b5c4, 0x0de6d027,
+	0x9af88c27, 0x773f8641, 0xc3604c06, 0x61a806b5,
+	0xf0177a28, 0xc0f586e0, 0x006058aa, 0x30dc7d62,
+	0x11e69ed7, 0x2338ea63, 0x53c2dd94, 0xc2c21634,
+	0xbbcbee56, 0x90bcb6de, 0xebfc7da1, 0xce591d76,
+	0x6f05e409, 0x4b7c0188, 0x39720a3d, 0x7c927c24,
+	0x86e3725f, 0x724d9db9, 0x1ac15bb4, 0xd39eb8fc,
+	0xed545578, 0x08fca5b5, 0xd83d7cd3, 0x4dad0fc4,
+	0x1e50ef5e, 0xb161e6f8, 0xa28514d9, 0x6c51133c,
+	0x6fd5c7e7, 0x56e14ec4, 0x362abfce, 0xddc6c837,
+	0xd79a3234, 0x92638212, 0x670efa8e, 0x406000e0,
+	0x3a39ce37, 0xd3faf5cf, 0xabc27737, 0x5ac52d1b,
+	0x5cb0679e, 0x4fa33742, 0xd3822740, 0x99bc9bbe,
+	0xd5118e9d, 0xbf0f7315, 0xd62d1c7e, 0xc700c47b,
+	0xb78c1b6b, 0x21a19045, 0xb26eb1be, 0x6a366eb4,
+	0x5748ab2f, 0xbc946e79, 0xc6a376d2, 0x6549c2c8,
+	0x530ff8ee, 0x468dde7d, 0xd5730a1d, 0x4cd04dc6,
+	0x2939bbdb, 0xa9ba4650, 0xac9526e8, 0xbe5ee304,
+	0xa1fad5f0, 0x6a2d519a, 0x63ef8ce2, 0x9a86ee22,
+	0xc089c2b8, 0x43242ef6, 0xa51e03aa, 0x9cf2d0a4,
+	0x83c061ba, 0x9be96a4d, 0x8fe51550, 0xba645bd6,
+	0x2826a2f9, 0xa73a3ae1, 0x4ba99586, 0xef5562e9,
+	0xc72fefd3, 0xf752f7da, 0x3f046f69, 0x77fa0a59,
+	0x80e4a915, 0x87b08601, 0x9b09e6ad, 0x3b3ee593,
+	0xe990fd5a, 0x9e34d797, 0x2cf0b7d9, 0x022b8b51,
+	0x96d5ac3a, 0x017da67d, 0xd1cf3ed6, 0x7c7d2d28,
+	0x1f9f25cf, 0xadf2b89b, 0x5ad6b472, 0x5a88f54c,
+	0xe029ac71, 0xe019a5e6, 0x47b0acfd, 0xed93fa9b,
+	0xe8d3c48d, 0x283b57cc, 0xf8d56629, 0x79132e28,
+	0x785f0191, 0xed756055, 0xf7960e44, 0xe3d35e8c,
+	0x15056dd4, 0x88f46dba, 0x03a16125, 0x0564f0bd,
+	0xc3eb9e15, 0x3c9057a2, 0x97271aec, 0xa93a072a,
+	0x1b3f6d9b, 0x1e6321f5, 0xf59c66fb, 0x26dcf319,
+	0x7533d928, 0xb155fdf5, 0x03563482, 0x8aba3cbb,
+	0x28517711, 0xc20ad9f8, 0xabcc5167, 0xccad925f,
+	0x4de81751, 0x3830dc8e, 0x379d5862, 0x9320f991,
+	0xea7a90c2, 0xfb3e7bce, 0x5121ce64, 0x774fbe32,
+	0xa8b6e37e, 0xc3293d46, 0x48de5369, 0x6413e680,
+	0xa2ae0810, 0xdd6db224, 0x69852dfd, 0x09072166,
+	0xb39a460a, 0x6445c0dd, 0x586cdecf, 0x1c20c8ae,
+	0x5bbef7dd, 0x1b588d40, 0xccd2017f, 0x6bb4e3bb,
+	0xdda26a7e, 0x3a59ff45, 0x3e350a44, 0xbcb4cdd5,
+	0x72eacea8, 0xfa6484bb, 0x8d6612ae, 0xbf3c6f47,
+	0xd29be463, 0x542f5d9e, 0xaec2771b, 0xf64e6370,
+	0x740e0d8d, 0xe75b1357, 0xf8721671, 0xaf537d5d,
+	0x4040cb08, 0x4eb4e2cc, 0x34d2466a, 0x0115af84,
+	0xe1b00428, 0x95983a1d, 0x06b89fb4, 0xce6ea048,
+	0x6f3f3b82, 0x3520ab82, 0x011a1d4b, 0x277227f8,
+	0x611560b1, 0xe7933fdc, 0xbb3a792b, 0x344525bd,
+	0xa08839e1, 0x51ce794b, 0x2f32c9b7, 0xa01fbac9,
+	0xe01cc87e, 0xbcc7d1f6, 0xcf0111c3, 0xa1e8aac7,
+	0x1a908749, 0xd44fbd9a, 0xd0dadecb, 0xd50ada38,
+	0x0339c32a, 0xc6913667, 0x8df9317c, 0xe0b12b4f,
+	0xf79e59b7, 0x43f5bb3a, 0xf2d519ff, 0x27d9459c,
+	0xbf97222c, 0x15e6fc2a, 0x0f91fc71, 0x9b941525,
+	0xfae59361, 0xceb69ceb, 0xc2a86459, 0x12baa8d1,
+	0xb6c1075e, 0xe3056a0c, 0x10d25065, 0xcb03a442,
+	0xe0ec6e0e, 0x1698db3b, 0x4c98a0be, 0x3278e964,
+	0x9f1f9532, 0xe0d392df, 0xd3a0342b, 0x8971f21e,
+	0x1b0a7441, 0x4ba3348c, 0xc5be7120, 0xc37632d8,
+	0xdf359f8d, 0x9b992f2e, 0xe60b6f47, 0x0fe3f11d,
+	0xe54cda54, 0x1edad891, 0xce6279cf, 0xcd3e7e6f,
+	0x1618b166, 0xfd2c1d05, 0x848fd2c5, 0xf6fb2299,
+	0xf523f357, 0xa6327623, 0x93a83531, 0x56cccd02,
+	0xacf08162, 0x5a75ebb5, 0x6e163697, 0x88d273cc,
+	0xde966292, 0x81b949d0, 0x4c50901b, 0x71c65614,
+	0xe6c6c7bd, 0x327a140a, 0x45e1d006, 0xc3f27b9a,
+	0xc9aa53fd, 0x62a80f00, 0xbb25bfe2, 0x35bdd2f6,
+	0x71126905, 0xb2040222, 0xb6cbcf7c, 0xcd769c2b,
+	0x53113ec0, 0x1640e3d3, 0x38abbd60, 0x2547adf0,
+	0xba38209c, 0xf746ce76, 0x77afa1c5, 0x20756060,
+	0x85cbfe4e, 0x8ae88dd8, 0x7aaaf9b0, 0x4cf9aa7e,
+	0x1948c25c, 0x02fb8a8c, 0x01c36ae4, 0xd6ebe1f9,
+	0x90d4f869, 0xa65cdea0, 0x3f09252d, 0xc208e69f,
+	0xb74e6132, 0xce77e25b, 0x578fdfe3, 0x3ac372e6,
+};
+
+/* 
+ * Round loop unrolling macros, S is a pointer to a S-Box array
+ * organized in 4 unsigned longs at a row.
+ */
+#define GET32_3(x) (((x) & 0xff))
+#define GET32_2(x) (((x) >> (8)) & (0xff))
+#define GET32_1(x) (((x) >> (16)) & (0xff))
+#define GET32_0(x) (((x) >> (24)) & (0xff))
+
+#define bf_F(x) (((S[GET32_0(x)] + S[256 + GET32_1(x)]) ^ \
+          S[512 + GET32_2(x)]) + S[768 + GET32_3(x)])
+
+#define ROUND(a, b, n)  b ^= P[n]; a ^= bf_F (b)
+
+/*
+ * The blowfish encipher, processes 64-bit blocks.
+ * NOTE: This function MUSTN'T respect endianess 
+ */
+static inline void encrypt_block(struct bf_ctx *bctx, u32 *dst, u32 *src)
+{
+	const u32 *P = bctx->p;
+	const u32 *S = bctx->s;
+	u32 yl = src[0];
+	u32 yr = src[1];
+
+	ROUND(yr, yl, 0);
+	ROUND(yl, yr, 1);
+	ROUND(yr, yl, 2);
+	ROUND(yl, yr, 3);
+	ROUND(yr, yl, 4);
+	ROUND(yl, yr, 5);
+	ROUND(yr, yl, 6);
+	ROUND(yl, yr, 7);
+	ROUND(yr, yl, 8);
+	ROUND(yl, yr, 9);
+	ROUND(yr, yl, 10);
+	ROUND(yl, yr, 11);
+	ROUND(yr, yl, 12);
+	ROUND(yl, yr, 13);
+	ROUND(yr, yl, 14);
+	ROUND(yl, yr, 15);
+
+	yl ^= P[16];
+	yr ^= P[17];
+
+	dst[0] = yr;
+	dst[1] = yl;
+}
+
+static void bf_encrypt(void *ctx, u8 *dst, const u8 *src)
+{
+	const u32 *in_blk = (const u32 *)src;
+	u32 *const out_blk = (u32 *)dst;
+	u32 in32[2], out32[2];
+
+	in32[0] = be32_to_cpu(in_blk[0]);
+	in32[1] = be32_to_cpu(in_blk[1]);
+	encrypt_block(ctx, out32, in32);
+	out_blk[0] = cpu_to_be32(out32[0]);
+	out_blk[1] = cpu_to_be32(out32[1]);
+}
+
+static void bf_decrypt(void *ctx, u8 *dst, const u8 *src)
+{
+	const u32 *in_blk = (const u32 *)src;
+	u32 *const out_blk = (u32 *)dst;
+	const u32 *P = ((struct bf_ctx *)ctx)->p;
+	const u32 *S = ((struct bf_ctx *)ctx)->s;
+	u32 yl = be32_to_cpu(in_blk[0]);
+	u32 yr = be32_to_cpu(in_blk[1]);
+
+	ROUND(yr, yl, 17);
+	ROUND(yl, yr, 16);
+	ROUND(yr, yl, 15);
+	ROUND(yl, yr, 14);
+	ROUND(yr, yl, 13);
+	ROUND(yl, yr, 12);
+	ROUND(yr, yl, 11);
+	ROUND(yl, yr, 10);
+	ROUND(yr, yl, 9);
+	ROUND(yl, yr, 8);
+	ROUND(yr, yl, 7);
+	ROUND(yl, yr, 6);
+	ROUND(yr, yl, 5);
+	ROUND(yl, yr, 4);
+	ROUND(yr, yl, 3);
+	ROUND(yl, yr, 2);
+
+	yl ^= P[1];
+	yr ^= P[0];
+
+	out_blk[0] = cpu_to_be32(yr);
+	out_blk[1] = cpu_to_be32(yl);
+}
+
+/* 
+ * Calculates the blowfish S and P boxes for encryption and decryption.
+ */
+static int bf_setkey(void *ctx, const u8 *key, unsigned int keylen, u32 *flags)
+{
+	short i, j, count;
+	u32 data[2], temp;
+	u32 *P = ((struct bf_ctx *)ctx)->p;
+	u32 *S = ((struct bf_ctx *)ctx)->s;
+
+	/* Copy the initialization s-boxes */
+	for (i = 0, count = 0; i < 256; i++)
+		for (j = 0; j < 4; j++, count++)
+			S[count] = bf_sbox[count];
+
+	/* Set the p-boxes */
+	for (i = 0; i < 16 + 2; i++)
+		P[i] = bf_pbox[i];
+
+	/* Actual subkey generation */
+	for (j = 0, i = 0; i < 16 + 2; i++) {
+		temp = (((u32 )key[j] << 24) |
+			((u32 )key[(j + 1) % keylen] << 16) |
+			((u32 )key[(j + 2) % keylen] << 8) |
+			((u32 )key[(j + 3) % keylen]));
+
+		P[i] = P[i] ^ temp;
+		j = (j + 4) % keylen;
+	}
+
+	data[0] = 0x00000000;
+	data[1] = 0x00000000;
+
+	for (i = 0; i < 16 + 2; i += 2) {
+		encrypt_block((struct bf_ctx *)ctx, data, data);
+
+		P[i] = data[0];
+		P[i + 1] = data[1];
+	}
+
+	for (i = 0; i < 4; i++) {
+		for (j = 0, count = i * 256; j < 256; j += 2, count += 2) {
+			encrypt_block((struct bf_ctx *)ctx, data, data);
+
+			S[count] = data[0];
+			S[count + 1] = data[1];
+		}
+	}
+	
+	/* Bruce says not to bother with the weak key check. */
+	return 0;
+}
+
+static struct crypto_alg alg = {
+	.cra_name		=	"blowfish",
+	.cra_flags		=	CRYPTO_ALG_TYPE_CIPHER,
+	.cra_blocksize		=	BF_BLOCK_SIZE,
+	.cra_ctxsize		=	sizeof(struct bf_ctx),
+	.cra_module		=	THIS_MODULE,
+	.cra_list		=	LIST_HEAD_INIT(alg.cra_list),
+	.cra_u			=	{ .cipher = {
+	.cia_min_keysize	=	BF_MIN_KEY_SIZE,
+	.cia_max_keysize	=	BF_MAX_KEY_SIZE,
+	.cia_ivsize		=	BF_BLOCK_SIZE,
+	.cia_setkey   		= 	bf_setkey,
+	.cia_encrypt 		=	bf_encrypt,
+	.cia_decrypt  		=	bf_decrypt } }
+};
+
+static int __init init(void)
+{
+	return crypto_register_alg(&alg);
+}
+
+static void __exit fini(void)
+{
+	crypto_unregister_alg(&alg);
+}
+
+module_init(init);
+module_exit(fini);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Blowfish Cipher Algorithm");

crypto/cipher.c

@@ -188,8 +188,14 @@ static void ecb_process(struct crypto_tfm *tfm, u8 *block,
 
 static int setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen)
 {
-	return tfm->__crt_alg->cra_cipher.cia_setkey(tfm->crt_ctx, key,
-	                                             keylen, &tfm->crt_flags);
+	struct cipher_alg *cia = &tfm->__crt_alg->cra_cipher;
+	
+	if (keylen < cia->cia_min_keysize || keylen > cia->cia_max_keysize) {
+		tfm->crt_flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
+		return -EINVAL;
+	} else
+		return cia->cia_setkey(tfm->crt_ctx, key, keylen,
+		                       &tfm->crt_flags);
 }
 
 static int ecb_encrypt(struct crypto_tfm *tfm,

crypto/des.c

@@ -1032,11 +1032,6 @@ static int setkey(u32 *expkey, const u8 *key, unsigned int keylen, u32 *flags)
 	u32 n, w;
 	u8 bits0[56], bits1[56];
 
-	if (keylen != DES_KEY_SIZE) {
-		*flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
-		return -EINVAL;
-	}
-
 	n  = parity[key[0]]; n <<= 4;
 	n |= parity[key[1]]; n <<= 4;
 	n |= parity[key[2]]; n <<= 4;
@@ -1208,11 +1203,6 @@ static int des3_ede_setkey(void *ctx, const u8 *key,
 	unsigned int i, off;
 	struct des3_ede_ctx *dctx = ctx;
 
-	if (keylen != DES3_EDE_KEY_SIZE) {
-		*flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
-		return -EINVAL;
-	}
-
 	if (!(memcmp(key, &key[DES_KEY_SIZE], DES_KEY_SIZE) && 
 	    memcmp(&key[DES_KEY_SIZE], &key[DES_KEY_SIZE * 2],
 	    					DES_KEY_SIZE))) {
@@ -1249,33 +1239,35 @@ static void des3_ede_decrypt(void *ctx, u8 *dst, const u8 *src)
 }
 
 static struct crypto_alg des_alg = {
-	.cra_name	=	"des",
-	.cra_flags	=	CRYPTO_ALG_TYPE_CIPHER,
-	.cra_blocksize	=	DES_BLOCK_SIZE,
-	.cra_ctxsize	=	sizeof(struct des_ctx),
-	.cra_module	=	THIS_MODULE,
-	.cra_list	=	LIST_HEAD_INIT(des_alg.cra_list),
-	.cra_u		=	{ .cipher = {
-	.cia_keysize	=	DES_KEY_SIZE,
-	.cia_ivsize	=	DES_BLOCK_SIZE,
-	.cia_setkey   	= 	des_setkey,
-	.cia_encrypt 	=	des_encrypt,
-	.cia_decrypt  	=	des_decrypt } }
+	.cra_name		=	"des",
+	.cra_flags		=	CRYPTO_ALG_TYPE_CIPHER,
+	.cra_blocksize		=	DES_BLOCK_SIZE,
+	.cra_ctxsize		=	sizeof(struct des_ctx),
+	.cra_module		=	THIS_MODULE,
+	.cra_list		=	LIST_HEAD_INIT(des_alg.cra_list),
+	.cra_u			=	{ .cipher = {
+	.cia_min_keysize	=	DES_KEY_SIZE,
+	.cia_max_keysize	=	DES_KEY_SIZE,
+	.cia_ivsize		=	DES_BLOCK_SIZE,
+	.cia_setkey		= 	des_setkey,
+	.cia_encrypt		=	des_encrypt,
+	.cia_decrypt		=	des_decrypt } }
 };
 
 static struct crypto_alg des3_ede_alg = {
-	.cra_name	=	"des3_ede",
-	.cra_flags	=	CRYPTO_ALG_TYPE_CIPHER,
-	.cra_blocksize	=	DES3_EDE_BLOCK_SIZE,
-	.cra_ctxsize	=	sizeof(struct des3_ede_ctx),
-	.cra_module	=	THIS_MODULE,
-	.cra_list	=	LIST_HEAD_INIT(des3_ede_alg.cra_list),
-	.cra_u		=	{ .cipher = {
-	.cia_keysize	=	DES3_EDE_KEY_SIZE,
-	.cia_ivsize	=	DES3_EDE_BLOCK_SIZE,
-	.cia_setkey   	= 	des3_ede_setkey,
-	.cia_encrypt 	=	des3_ede_encrypt,
-	.cia_decrypt  	=	des3_ede_decrypt } }
+	.cra_name		=	"des3_ede",
+	.cra_flags		=	CRYPTO_ALG_TYPE_CIPHER,
+	.cra_blocksize		=	DES3_EDE_BLOCK_SIZE,
+	.cra_ctxsize		=	sizeof(struct des3_ede_ctx),
+	.cra_module		=	THIS_MODULE,
+	.cra_list		=	LIST_HEAD_INIT(des3_ede_alg.cra_list),
+	.cra_u			=	{ .cipher = {
+	.cia_min_keysize	=	DES3_EDE_KEY_SIZE,
+	.cia_max_keysize	=	DES3_EDE_KEY_SIZE,
+	.cia_ivsize		=	DES3_EDE_BLOCK_SIZE,
+	.cia_setkey	   	= 	des3_ede_setkey,
+	.cia_encrypt	 	=	des3_ede_encrypt,
+	.cia_decrypt	  	=	des3_ede_decrypt } }
 };
 
 static int __init init(void)

crypto/tcrypt.c

@@ -47,7 +47,7 @@ static char *xbuf;
 static char *tvmem;
 
 static char *check[] = {
-	"des", "md5", "des3_ede", "rot13", "sha1", "sha256",
+	"des", "md5", "des3_ede", "rot13", "sha1", "sha256", "blowfish",
 	 NULL
 };
 
@@ -1480,6 +1480,210 @@ test_des3_ede(void)
 	crypto_free_tfm(tfm);
 }
 
+void
+test_blowfish(void)
+{
+	unsigned int ret, i;
+	unsigned int tsize;
+	char *p, *q;
+	struct crypto_tfm *tfm;
+	char *key;
+	struct bf_tv *bf_tv;
+	struct scatterlist sg[1];
+
+	printk("\ntesting blowfish encryption\n");
+
+	tsize = sizeof (bf_enc_tv_template);
+	if (tsize > TVMEMSIZE) {
+		printk("template (%u) too big for tvmem (%u)\n", tsize,
+		       TVMEMSIZE);
+		return;
+	}
+
+	memcpy(tvmem, bf_enc_tv_template, tsize);
+	bf_tv = (void *) tvmem;
+
+	tfm = crypto_alloc_tfm("blowfish", 0);
+	if (tfm == NULL) {
+		printk("failed to load transform for blowfish (default ecb)\n");
+		return;
+	}
+
+	for (i = 0; i < BF_ENC_TEST_VECTORS; i++) {
+		printk("test %u (%d bit key):\n",
+			i + 1, bf_tv[i].keylen * 8);
+		key = bf_tv[i].key;
+
+		ret = crypto_cipher_setkey(tfm, key, bf_tv[i].keylen);
+		if (ret) {
+			printk("setkey() failed flags=%x\n", tfm->crt_flags);
+
+			if (!bf_tv[i].fail)
+				goto out;
+		}
+
+		p = bf_tv[i].plaintext;
+		sg[0].page = virt_to_page(p);
+		sg[0].offset = ((long) p & ~PAGE_MASK);
+		sg[0].length = bf_tv[i].plen;
+		ret = crypto_cipher_encrypt(tfm, sg, 1);
+		if (ret) {
+			printk("encrypt() failed flags=%x\n", tfm->crt_flags);
+			goto out;
+		}
+
+		q = kmap(sg[0].page) + sg[0].offset;
+		hexdump(q, bf_tv[i].rlen);
+
+		printk("%s\n", memcmp(q, bf_tv[i].result, bf_tv[i].rlen) ?
+			"fail" : "pass");
+	}
+
+	printk("\ntesting blowfish decryption\n");
+
+	tsize = sizeof (bf_dec_tv_template);
+	if (tsize > TVMEMSIZE) {
+		printk("template (%u) too big for tvmem (%u)\n", tsize,
+		       TVMEMSIZE);
+		return;
+	}
+
+	memcpy(tvmem, bf_dec_tv_template, tsize);
+	bf_tv = (void *) tvmem;
+
+	for (i = 0; i < BF_DEC_TEST_VECTORS; i++) {
+		printk("test %u (%d bit key):\n",
+			i + 1, bf_tv[i].keylen * 8);
+		key = bf_tv[i].key;
+
+		ret = crypto_cipher_setkey(tfm, key, bf_tv[i].keylen);
+		if (ret) {
+			printk("setkey() failed flags=%x\n", tfm->crt_flags);
+
+			if (!bf_tv[i].fail)
+				goto out;
+		}
+
+		p = bf_tv[i].plaintext;
+		sg[0].page = virt_to_page(p);
+		sg[0].offset = ((long) p & ~PAGE_MASK);
+		sg[0].length = bf_tv[i].plen;
+		ret = crypto_cipher_decrypt(tfm, sg, 1);
+		if (ret) {
+			printk("decrypt() failed flags=%x\n", tfm->crt_flags);
+			goto out;
+		}
+
+		q = kmap(sg[0].page) + sg[0].offset;
+		hexdump(q, bf_tv[i].rlen);
+
+		printk("%s\n", memcmp(q, bf_tv[i].result, bf_tv[i].rlen) ?
+			"fail" : "pass");
+	}
+	
+	crypto_free_tfm(tfm);
+	
+	tfm = crypto_alloc_tfm("blowfish", CRYPTO_TFM_MODE_CBC);
+	if (tfm == NULL) {
+		printk("failed to load transform for blowfish cbc\n");
+		return;
+	}
+
+	printk("\ntesting blowfish cbc encryption\n");
+
+	tsize = sizeof (bf_cbc_enc_tv_template);
+	if (tsize > TVMEMSIZE) {
+		printk("template (%u) too big for tvmem (%u)\n", tsize,
+		       TVMEMSIZE);
+		goto out;
+	}
+	memcpy(tvmem, bf_cbc_enc_tv_template, tsize);
+	bf_tv = (void *) tvmem;
+
+	for (i = 0; i < BF_CBC_ENC_TEST_VECTORS; i++) {
+		printk("test %u (%d bit key):\n",
+			i + 1, bf_tv[i].keylen * 8);
+
+		key = bf_tv[i].key;
+
+		ret = crypto_cipher_setkey(tfm, key, bf_tv[i].keylen);
+		if (ret) {
+			printk("setkey() failed flags=%x\n", tfm->crt_flags);
+			goto out;
+		}
+
+		p = bf_tv[i].plaintext;
+
+		sg[0].page = virt_to_page(p);
+		sg[0].offset = ((long) p & ~PAGE_MASK);
+		sg[0].length =  bf_tv[i].plen;;
+
+		crypto_cipher_set_iv(tfm, bf_tv[i].iv,
+				     crypto_tfm_alg_ivsize(tfm));
+
+		ret = crypto_cipher_encrypt(tfm, sg, 1);
+		if (ret) {
+			printk("blowfish_cbc_encrypt() failed flags=%x\n",
+			       tfm->crt_flags);
+			goto out;
+		}
+
+		q = kmap(sg[0].page) + sg[0].offset;
+		hexdump(q, bf_tv[i].rlen);
+
+		printk("%s\n", memcmp(q, bf_tv[i].result, bf_tv[i].rlen)
+			? "fail" : "pass");
+	}
+
+	printk("\ntesting blowfish cbc decryption\n");
+
+	tsize = sizeof (bf_cbc_dec_tv_template);
+	if (tsize > TVMEMSIZE) {
+		printk("template (%u) too big for tvmem (%u)\n", tsize,
+		       TVMEMSIZE);
+		goto out;
+	}
+	memcpy(tvmem, bf_cbc_dec_tv_template, tsize);
+	bf_tv = (void *) tvmem;
+
+	for (i = 0; i < BF_CBC_ENC_TEST_VECTORS; i++) {
+		printk("test %u (%d bit key):\n",
+			i + 1, bf_tv[i].keylen * 8);
+		key = bf_tv[i].key;
+
+		ret = crypto_cipher_setkey(tfm, key, bf_tv[i].keylen);
+		if (ret) {
+			printk("setkey() failed flags=%x\n", tfm->crt_flags);
+			goto out;
+		}
+
+		p = bf_tv[i].plaintext;
+
+		sg[0].page = virt_to_page(p);
+		sg[0].offset = ((long) p & ~PAGE_MASK);
+		sg[0].length =  bf_tv[i].plen;;
+
+		crypto_cipher_set_iv(tfm, bf_tv[i].iv,
+				     crypto_tfm_alg_ivsize(tfm));
+
+		ret = crypto_cipher_decrypt(tfm, sg, 1);
+		if (ret) {
+			printk("blowfish_cbc_decrypt() failed flags=%x\n",
+			       tfm->crt_flags);
+			goto out;
+		}
+
+		q = kmap(sg[0].page) + sg[0].offset;
+		hexdump(q, bf_tv[i].rlen);
+
+		printk("%s\n", memcmp(q, bf_tv[i].result, bf_tv[i].rlen)
+			? "fail" : "pass");
+	}
+
+out:
+	crypto_free_tfm(tfm);
+}
+
 static void
 test_available(void)
 {
@@ -1504,6 +1708,8 @@ do_test(void)
 		test_des();
 		test_des3_ede();
 		test_md4();
+		test_sha256();
+		test_blowfish();
 #ifdef CONFIG_CRYPTO_HMAC
 		test_hmac_md5();
 		test_hmac_sha1();
@@ -1534,6 +1740,10 @@ do_test(void)
 	case 6:
 		test_sha256();
 		break;
+	
+	case 7:
+		test_blowfish();
+		break;
 
 #ifdef CONFIG_CRYPTO_HMAC
 	case 100:

crypto/tcrypt.h

@@ -591,7 +591,7 @@ struct sha256_testvec {
 };
 
 /*
- * DES test vectors (also need to test for weak keys etc).
+ * DES test vectors.
  */
 #define DES_ENC_TEST_VECTORS		5
 #define DES_DEC_TEST_VECTORS		2
@@ -972,6 +972,199 @@ struct des_tv des3_ede_dec_tv_template[] = {
 		{ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00  },
 	},
 };
+
+/*
+ * Blowfish test vectors.
+ */
+#define BF_ENC_TEST_VECTORS	6
+#define BF_DEC_TEST_VECTORS	6
+#define BF_CBC_ENC_TEST_VECTORS	1
+#define BF_CBC_DEC_TEST_VECTORS	1
+
+struct bf_tv {
+	unsigned int keylen;
+	unsigned int plen;
+	unsigned int rlen;
+	int fail;
+	char key[56];
+	char iv[8];
+	char plaintext[32];
+	char result[32];
+};
+
+struct bf_tv bf_enc_tv_template[] = {
+
+	/* DES test vectors from OpenSSL */
+	{
+		8, 8, 8, 0,
+		{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
+		{ 0 },
+		{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+		{ 0x4E, 0xF9, 0x97, 0x45, 0x61, 0x98, 0xDD, 0x78 },
+	},
 	
-#endif	/* _CRYPTO_TCRYPT_H */
+	{
+		8, 8, 8, 0,
+		{ 0x1F, 0x1F, 0x1F, 0x1F, 0x0E, 0x0E, 0x0E, 0x0E,  },
+		{ 0 },
+		{ 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF },
+		{ 0xA7, 0x90, 0x79, 0x51, 0x08, 0xEA, 0x3C, 0xAE },
+	},
+	
+	{
+		8, 8, 8, 0,
+		{ 0xF0, 0xE1, 0xD2, 0xC3, 0xB4, 0xA5, 0x96, 0x87, },
+		{ 0 },
+		{ 0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10 },
+		{ 0xE8, 0x7A, 0x24, 0x4E, 0x2C, 0xC8, 0x5E, 0x82 }
+	},
+	
+	/* Vary the keylength... */
+	
+	{
+		16, 8, 8, 0,
+		{ 0xF0, 0xE1, 0xD2, 0xC3, 0xB4, 0xA5, 0x96, 0x87,
+		  0x78, 0x69, 0x5A, 0x4B, 0x3C, 0x2D, 0x1E, 0x0F },
+		{ 0 },
+		{ 0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10 },
+		{ 0x93, 0x14, 0x28, 0x87, 0xEE, 0x3B, 0xE1, 0x5C }
+	},
+	
+	{
+		21, 8, 8, 0,
+		{ 0xF0, 0xE1, 0xD2, 0xC3, 0xB4, 0xA5, 0x96, 0x87,
+		  0x78, 0x69, 0x5A, 0x4B, 0x3C, 0x2D, 0x1E, 0x0F,
+		  0x00, 0x11, 0x22, 0x33, 0x44 },
+		{ 0 },
+		{ 0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10 },
+		{ 0xE6, 0xF5, 0x1E, 0xD7, 0x9B, 0x9D, 0xB2, 0x1F }
+	},
+	
+	/* Generated with bf488 */
+	{
+		56, 8, 8, 0,
+		{ 0xF0, 0xE1, 0xD2, 0xC3, 0xB4, 0xA5, 0x96, 0x87,
+		  0x78, 0x69, 0x5A, 0x4B, 0x3C, 0x2D, 0x1E, 0x0F,
+		  0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,
+		  0x04, 0x68, 0x91, 0x04, 0xC2, 0xFD, 0x3B, 0x2F, 
+		  0x58, 0x40, 0x23, 0x64, 0x1A, 0xBA, 0x61, 0x76, 
+		  0x1F, 0x1F, 0x1F, 0x1F, 0x0E, 0x0E, 0x0E, 0x0E, 
+		  0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF },
+		  { 0 },
+		  { 0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10 },
+		  { 0xc0, 0x45, 0x04, 0x01, 0x2e, 0x4e, 0x1f, 0x53 }
+	}
+	
+};
+
+struct bf_tv bf_dec_tv_template[] = {
 
+	/* DES test vectors from OpenSSL */
+	{
+		8, 8, 8, 0,
+		{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
+		{ 0 },
+		{ 0x4E, 0xF9, 0x97, 0x45, 0x61, 0x98, 0xDD, 0x78 },
+		{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }
+	},
+	
+	{
+		8, 8, 8, 0,
+		{ 0x1F, 0x1F, 0x1F, 0x1F, 0x0E, 0x0E, 0x0E, 0x0E,  },
+		{ 0 },
+		{ 0xA7, 0x90, 0x79, 0x51, 0x08, 0xEA, 0x3C, 0xAE },
+		{ 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF }
+	},
+	
+	{
+		8, 8, 8, 0,
+		{ 0xF0, 0xE1, 0xD2, 0xC3, 0xB4, 0xA5, 0x96, 0x87, },
+		{ 0 },
+		{ 0xE8, 0x7A, 0x24, 0x4E, 0x2C, 0xC8, 0x5E, 0x82 },
+		{ 0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10 }
+	},
+	
+	/* Vary the keylength... */
+	
+	{
+		16, 8, 8, 0,
+		{ 0xF0, 0xE1, 0xD2, 0xC3, 0xB4, 0xA5, 0x96, 0x87,
+		  0x78, 0x69, 0x5A, 0x4B, 0x3C, 0x2D, 0x1E, 0x0F },
+		{ 0 },
+		{ 0x93, 0x14, 0x28, 0x87, 0xEE, 0x3B, 0xE1, 0x5C },
+		{ 0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10 }
+	},
+	
+	{
+		21, 8, 8, 0,
+		{ 0xF0, 0xE1, 0xD2, 0xC3, 0xB4, 0xA5, 0x96, 0x87,
+		  0x78, 0x69, 0x5A, 0x4B, 0x3C, 0x2D, 0x1E, 0x0F,
+		  0x00, 0x11, 0x22, 0x33, 0x44 },
+		{ 0 },
+		{ 0xE6, 0xF5, 0x1E, 0xD7, 0x9B, 0x9D, 0xB2, 0x1F },
+		{ 0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10 }
+	},
+	
+	/* Generated with bf488, using OpenSSL, Libgcrypt and Nettle */
+	{
+		56, 8, 8, 0,
+		{ 0xF0, 0xE1, 0xD2, 0xC3, 0xB4, 0xA5, 0x96, 0x87,
+		  0x78, 0x69, 0x5A, 0x4B, 0x3C, 0x2D, 0x1E, 0x0F,
+		  0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,
+		  0x04, 0x68, 0x91, 0x04, 0xC2, 0xFD, 0x3B, 0x2F, 
+		  0x58, 0x40, 0x23, 0x64, 0x1A, 0xBA, 0x61, 0x76, 
+		  0x1F, 0x1F, 0x1F, 0x1F, 0x0E, 0x0E, 0x0E, 0x0E, 
+		  0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF },
+		{ 0 },
+		{ 0xc0, 0x45, 0x04, 0x01, 0x2e, 0x4e, 0x1f, 0x53 },
+		{ 0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10 }
+	}
+};
+
+struct bf_tv bf_cbc_enc_tv_template[] = {
+
+	/* From OpenSSL */
+	{
+		16, 32, 32, 0,
+		
+		{ 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF,
+		  0xF0, 0xE1, 0xD2, 0xC3, 0xB4, 0xA5, 0x96, 0x87 },
+		  
+		{ 0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10 },
+		
+		{ 0x37, 0x36, 0x35, 0x34, 0x33, 0x32, 0x31, 0x20,
+		  0x4E, 0x6F, 0x77, 0x20, 0x69, 0x73, 0x20, 0x74,
+		  0x68, 0x65, 0x20, 0x74, 0x69, 0x6D, 0x65, 0x20,
+		  0x66, 0x6F, 0x72, 0x20, 0x00, 0x00, 0x00, 0x00 },
+		  
+		{ 0x6B, 0x77, 0xB4, 0xD6, 0x30, 0x06, 0xDE, 0xE6,
+		  0x05, 0xB1, 0x56, 0xE2, 0x74, 0x03, 0x97, 0x93,
+		  0x58, 0xDE, 0xB9, 0xE7, 0x15, 0x46, 0x16, 0xD9,
+		  0x59, 0xF1, 0x65, 0x2B, 0xD5, 0xFF, 0x92, 0xCC }
+	},
+};
+
+struct bf_tv bf_cbc_dec_tv_template[] = {
+
+	/* From OpenSSL */
+	{
+		16, 32, 32, 0,
+		
+		{ 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF,
+		  0xF0, 0xE1, 0xD2, 0xC3, 0xB4, 0xA5, 0x96, 0x87 },
+		  
+		{ 0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10 },
+		
+		{ 0x6B, 0x77, 0xB4, 0xD6, 0x30, 0x06, 0xDE, 0xE6,
+		  0x05, 0xB1, 0x56, 0xE2, 0x74, 0x03, 0x97, 0x93,
+		  0x58, 0xDE, 0xB9, 0xE7, 0x15, 0x46, 0x16, 0xD9,
+		  0x59, 0xF1, 0x65, 0x2B, 0xD5, 0xFF, 0x92, 0xCC },
+		  
+		{ 0x37, 0x36, 0x35, 0x34, 0x33, 0x32, 0x31, 0x20,
+		  0x4E, 0x6F, 0x77, 0x20, 0x69, 0x73, 0x20, 0x74,
+		  0x68, 0x65, 0x20, 0x74, 0x69, 0x6D, 0x65, 0x20,
+		  0x66, 0x6F, 0x72, 0x20, 0x00, 0x00, 0x00, 0x00 }
+	},
+};
+
+#endif	/* _CRYPTO_TCRYPT_H */

include/linux/crypto.h

@@ -67,7 +67,8 @@ struct scatterlist;
  * via crypto_register_alg() and crypto_unregister_alg().
  */
 struct cipher_alg {
-	unsigned int cia_keysize;
+	unsigned int cia_min_keysize;
+	unsigned int cia_max_keysize;
 	unsigned int cia_ivsize;
 	int (*cia_setkey)(void *ctx, const u8 *key,
 	                  unsigned int keylen, u32 *flags);
@@ -208,9 +209,14 @@ static inline u32 crypto_tfm_alg_type(struct crypto_tfm *tfm)
 	return tfm->__crt_alg->cra_flags & CRYPTO_ALG_TYPE_MASK;
 }
 
-static inline unsigned int crypto_tfm_alg_keysize(struct crypto_tfm *tfm)
+static inline unsigned int crypto_tfm_alg_min_keysize(struct crypto_tfm *tfm)
 {
-	return tfm->__crt_alg->cra_cipher.cia_keysize;
+	return tfm->__crt_alg->cra_cipher.cia_min_keysize;
+}
+
+static inline unsigned int crypto_tfm_alg_max_keysize(struct crypto_tfm *tfm)
+{
+	return tfm->__crt_alg->cra_cipher.cia_max_keysize;
 }
 
 static inline unsigned int crypto_tfm_alg_ivsize(struct crypto_tfm *tfm)