Merge nuts.davemloft.net:/disk1/BK/network-2.6

into nuts.davemloft.net:/disk1/BK/net-2.6

crypto/Kconfig

@@ -152,6 +152,20 @@ config CRYPTO_CAST6
 	  The CAST6 encryption algorithm (synonymous with CAST-256) is
 	  described in RFC2612.
 
+config CRYPTO_TEA
+	tristate "TEA and XTEA cipher algorithms"
+	depends on CRYPTO
+	help
+	  TEA cipher algorithm.
+
+	  Tiny Encryption Algorithm is a simple cipher that uses
+	  many rounds for security.  It is very fast and uses
+	  little memory.
+
+	  Xtendend Tiny Encryption Algorithm is a modifcation to
+	  the TEA algorithm to address a potential key weakness
+	  in the TEA algorithm.
+
 config CRYPTO_ARC4
 	tristate "ARC4 cipher algorithm"
 	depends on CRYPTO

crypto/Makefile

@@ -22,6 +22,7 @@ obj-$(CONFIG_CRYPTO_AES) += aes.o
 obj-$(CONFIG_CRYPTO_CAST5) += cast5.o
 obj-$(CONFIG_CRYPTO_CAST6) += cast6.o
 obj-$(CONFIG_CRYPTO_ARC4) += arc4.o
+obj-$(CONFIG_CRYPTO_TEA) += tea.o
 obj-$(CONFIG_CRYPTO_DEFLATE) += deflate.o
 obj-$(CONFIG_CRYPTO_MICHAEL_MIC) += michael_mic.o
 obj-$(CONFIG_CRYPTO_CRC32C) += crc32c.o

crypto/tcrypt.c

@@ -61,7 +61,7 @@ static char *tvmem;
 static char *check[] = {
 	"des", "md5", "des3_ede", "rot13", "sha1", "sha256", "blowfish",
 	"twofish", "serpent", "sha384", "sha512", "md4", "aes", "cast6", 
-	"arc4", "michael_mic", "deflate", "crc32c", NULL
+	"arc4", "michael_mic", "deflate", "crc32c", "tea", "xtea", NULL
 };
 
 static void
@@ -665,6 +665,15 @@ do_test(void)
 		test_cipher ("arc4", MODE_ECB, ENCRYPT, arc4_enc_tv_template, ARC4_ENC_TEST_VECTORS);
 		test_cipher ("arc4", MODE_ECB, DECRYPT, arc4_dec_tv_template, ARC4_DEC_TEST_VECTORS);
 
+		//TEA
+		test_cipher ("tea", MODE_ECB, ENCRYPT, tea_enc_tv_template, TEA_ENC_TEST_VECTORS);
+		test_cipher ("tea", MODE_ECB, DECRYPT, tea_dec_tv_template, TEA_DEC_TEST_VECTORS);
+
+
+		//XTEA
+		test_cipher ("xtea", MODE_ECB, ENCRYPT, xtea_enc_tv_template, XTEA_ENC_TEST_VECTORS);
+		test_cipher ("xtea", MODE_ECB, DECRYPT, xtea_dec_tv_template, XTEA_DEC_TEST_VECTORS);
+
 		test_hash("sha384", sha384_tv_template, SHA384_TEST_VECTORS);
 		test_hash("sha512", sha512_tv_template, SHA512_TEST_VECTORS);
 		test_deflate();
@@ -763,6 +772,16 @@ do_test(void)
 		test_crc32c();
 		break;
 
+	case 19:
+		test_cipher ("tea", MODE_ECB, ENCRYPT, tea_enc_tv_template, TEA_ENC_TEST_VECTORS);
+		test_cipher ("tea", MODE_ECB, DECRYPT, tea_dec_tv_template, TEA_DEC_TEST_VECTORS);
+		break;
+
+	case 20:
+		test_cipher ("xtea", MODE_ECB, ENCRYPT, xtea_enc_tv_template, XTEA_ENC_TEST_VECTORS);
+		test_cipher ("xtea", MODE_ECB, DECRYPT, xtea_dec_tv_template, XTEA_DEC_TEST_VECTORS);
+		break;
+
 #ifdef CONFIG_CRYPTO_HMAC
 	case 100:
 		test_hmac("md5", hmac_md5_tv_template, HMAC_MD5_TEST_VECTORS);

crypto/tcrypt.h

@@ -1630,6 +1630,195 @@ struct cipher_testvec arc4_dec_tv_template[] =
 	},
 };
 
+/* 
+ * TEA test vectors
+ */
+#define TEA_ENC_TEST_VECTORS	4
+#define TEA_DEC_TEST_VECTORS	4
+
+struct cipher_testvec tea_enc_tv_template[] =
+{
+	{
+		.key    = { [0 ... 15] = 0x00 },
+		.klen	= 16,
+		.input  = { [0 ... 8] = 0x00 },
+		.ilen	= 8,
+		.result	= { 0x0a, 0x3a, 0xea, 0x41, 0x40, 0xa9, 0xba, 0x94 },
+		.rlen	= 8,
+	}, {
+		.key	= { 0x2b, 0x02, 0x05, 0x68, 0x06, 0x14, 0x49, 0x76,
+			    0x77, 0x5d, 0x0e, 0x26, 0x6c, 0x28, 0x78, 0x43 },
+		.klen	= 16,
+		.input	= { 0x74, 0x65, 0x73, 0x74, 0x20, 0x6d, 0x65, 0x2e },
+		.ilen	= 8,
+		.result	= { 0x77, 0x5d, 0x2a, 0x6a, 0xf6, 0xce, 0x92, 0x09 },
+		.rlen	= 8,
+	}, {
+		.key	= { 0x09, 0x65, 0x43, 0x11, 0x66, 0x44, 0x39, 0x25,
+			    0x51, 0x3a, 0x16, 0x10, 0x0a, 0x08, 0x12, 0x6e },
+		.klen	= 16,
+		.input	= { 0x6c, 0x6f, 0x6e, 0x67, 0x65, 0x72, 0x5f, 0x74, 
+			    0x65, 0x73, 0x74, 0x5f, 0x76, 0x65, 0x63, 0x74 },
+		.ilen	= 16,
+		.result	= { 0xbe, 0x7a, 0xbb, 0x81, 0x95, 0x2d, 0x1f, 0x1e, 
+			    0xdd, 0x89, 0xa1, 0x25, 0x04, 0x21, 0xdf, 0x95 },
+		.rlen	= 16,
+	}, {
+		.key	= { 0x4d, 0x76, 0x32, 0x17, 0x05, 0x3f, 0x75, 0x2c,
+			    0x5d, 0x04, 0x16, 0x36, 0x15, 0x72, 0x63, 0x2f },
+		.klen	= 16,
+		.input	= { 0x54, 0x65, 0x61, 0x20, 0x69, 0x73, 0x20, 0x67, 
+			    0x6f, 0x6f, 0x64, 0x20, 0x66, 0x6f, 0x72, 0x20, 
+			    0x79, 0x6f, 0x75, 0x21, 0x21, 0x21, 0x20, 0x72, 
+			    0x65, 0x61, 0x6c, 0x6c, 0x79, 0x21, 0x21, 0x21 },
+		.ilen	= 32,
+		.result	= { 0xe0, 0x4d, 0x5d, 0x3c, 0xb7, 0x8c, 0x36, 0x47, 
+			    0x94, 0x18, 0x95, 0x91, 0xa9, 0xfc, 0x49, 0xf8, 
+			    0x44, 0xd1, 0x2d, 0xc2, 0x99, 0xb8, 0x08, 0x2a, 
+			    0x07, 0x89, 0x73, 0xc2, 0x45, 0x92, 0xc6, 0x90 },
+		.rlen	= 32,
+	}
+};
+
+struct cipher_testvec tea_dec_tv_template[] =
+{
+	{
+		.key    = { [0 ... 15] = 0x00 },
+		.klen	= 16,
+		.input	= { 0x0a, 0x3a, 0xea, 0x41, 0x40, 0xa9, 0xba, 0x94 },
+		.ilen	= 8,
+		.result = { [0 ... 8] = 0x00 },
+		.rlen	= 8,
+	}, {
+		.key	= { 0x2b, 0x02, 0x05, 0x68, 0x06, 0x14, 0x49, 0x76,
+			    0x77, 0x5d, 0x0e, 0x26, 0x6c, 0x28, 0x78, 0x43 },
+		.klen	= 16,
+		.input	= { 0x77, 0x5d, 0x2a, 0x6a, 0xf6, 0xce, 0x92, 0x09 },
+		.ilen	= 8,
+		.result	= { 0x74, 0x65, 0x73, 0x74, 0x20, 0x6d, 0x65, 0x2e },
+		.rlen	= 8,
+	}, {
+		.key	= { 0x09, 0x65, 0x43, 0x11, 0x66, 0x44, 0x39, 0x25,
+			    0x51, 0x3a, 0x16, 0x10, 0x0a, 0x08, 0x12, 0x6e },
+		.klen	= 16,
+		.input	= { 0xbe, 0x7a, 0xbb, 0x81, 0x95, 0x2d, 0x1f, 0x1e,
+                            0xdd, 0x89, 0xa1, 0x25, 0x04, 0x21, 0xdf, 0x95 },
+                .ilen   = 16,
+		.result	= { 0x6c, 0x6f, 0x6e, 0x67, 0x65, 0x72, 0x5f, 0x74, 
+			    0x65, 0x73, 0x74, 0x5f, 0x76, 0x65, 0x63, 0x74 },
+		.rlen	= 16,
+	}, {
+		.key	= { 0x4d, 0x76, 0x32, 0x17, 0x05, 0x3f, 0x75, 0x2c,
+			    0x5d, 0x04, 0x16, 0x36, 0x15, 0x72, 0x63, 0x2f },
+		.klen	= 16,
+		.input	= { 0xe0, 0x4d, 0x5d, 0x3c, 0xb7, 0x8c, 0x36, 0x47,
+                            0x94, 0x18, 0x95, 0x91, 0xa9, 0xfc, 0x49, 0xf8,
+                            0x44, 0xd1, 0x2d, 0xc2, 0x99, 0xb8, 0x08, 0x2a,
+                            0x07, 0x89, 0x73, 0xc2, 0x45, 0x92, 0xc6, 0x90 },
+		.ilen	= 32,
+		.result	= { 0x54, 0x65, 0x61, 0x20, 0x69, 0x73, 0x20, 0x67, 
+			    0x6f, 0x6f, 0x64, 0x20, 0x66, 0x6f, 0x72, 0x20, 
+			    0x79, 0x6f, 0x75, 0x21, 0x21, 0x21, 0x20, 0x72, 
+			    0x65, 0x61, 0x6c, 0x6c, 0x79, 0x21, 0x21, 0x21 },
+		.rlen	= 32,
+	}
+};
+
+/* 
+ * XTEA test vectors 
+ */
+#define XTEA_ENC_TEST_VECTORS	4
+#define XTEA_DEC_TEST_VECTORS	4
+
+struct cipher_testvec xtea_enc_tv_template[] =
+{
+	{
+		.key    = { [0 ... 15] = 0x00 },
+		.klen	= 16,
+		.input  = { [0 ... 8] = 0x00 },
+		.ilen	= 8,
+		.result	= { 0xaa, 0x22, 0x96, 0xe5, 0x6c, 0x61, 0xf3, 0x45 },
+		.rlen	= 8,
+	}, {
+		.key	= { 0x2b, 0x02, 0x05, 0x68, 0x06, 0x14, 0x49, 0x76,
+			    0x77, 0x5d, 0x0e, 0x26, 0x6c, 0x28, 0x78, 0x43 },
+		.klen	= 16,
+		.input	= { 0x74, 0x65, 0x73, 0x74, 0x20, 0x6d, 0x65, 0x2e },
+		.ilen	= 8,
+		.result	= { 0x82, 0x3e, 0xeb, 0x35, 0xdc, 0xdd, 0xd9, 0xc3 },
+		.rlen	= 8,
+	}, {
+		.key	= { 0x09, 0x65, 0x43, 0x11, 0x66, 0x44, 0x39, 0x25,
+			    0x51, 0x3a, 0x16, 0x10, 0x0a, 0x08, 0x12, 0x6e },
+		.klen	= 16,
+		.input	= { 0x6c, 0x6f, 0x6e, 0x67, 0x65, 0x72, 0x5f, 0x74, 
+			    0x65, 0x73, 0x74, 0x5f, 0x76, 0x65, 0x63, 0x74 },
+		.ilen	= 16,
+		.result	= { 0xe2, 0x04, 0xdb, 0xf2, 0x89, 0x85, 0x9e, 0xea, 
+			    0x61, 0x35, 0xaa, 0xed, 0xb5, 0xcb, 0x71, 0x2c },
+		.rlen	= 16,
+	}, {
+		.key	= { 0x4d, 0x76, 0x32, 0x17, 0x05, 0x3f, 0x75, 0x2c,
+			    0x5d, 0x04, 0x16, 0x36, 0x15, 0x72, 0x63, 0x2f },
+		.klen	= 16,
+		.input	= { 0x54, 0x65, 0x61, 0x20, 0x69, 0x73, 0x20, 0x67, 
+			    0x6f, 0x6f, 0x64, 0x20, 0x66, 0x6f, 0x72, 0x20, 
+			    0x79, 0x6f, 0x75, 0x21, 0x21, 0x21, 0x20, 0x72, 
+			    0x65, 0x61, 0x6c, 0x6c, 0x79, 0x21, 0x21, 0x21 },
+		.ilen	= 32,
+		.result	= { 0x0b, 0x03, 0xcd, 0x8a, 0xbe, 0x95, 0xfd, 0xb1, 
+			    0xc1, 0x44, 0x91, 0x0b, 0xa5, 0xc9, 0x1b, 0xb4, 
+			    0xa9, 0xda, 0x1e, 0x9e, 0xb1, 0x3e, 0x2a, 0x8f, 
+			    0xea, 0xa5, 0x6a, 0x85, 0xd1, 0xf4, 0xa8, 0xa5 },
+		.rlen	= 32,
+	}
+};
+
+struct cipher_testvec xtea_dec_tv_template[] =
+{
+	{
+		.key    = { [0 ... 15] = 0x00 },
+		.klen	= 16,
+		.input	= { 0xaa, 0x22, 0x96, 0xe5, 0x6c, 0x61, 0xf3, 0x45 },
+		.ilen	= 8,
+		.result = { [0 ... 8] = 0x00 },
+		.rlen	= 8,
+	}, {
+		.key	= { 0x2b, 0x02, 0x05, 0x68, 0x06, 0x14, 0x49, 0x76,
+			    0x77, 0x5d, 0x0e, 0x26, 0x6c, 0x28, 0x78, 0x43 },
+		.klen	= 16,
+		.input	= { 0x82, 0x3e, 0xeb, 0x35, 0xdc, 0xdd, 0xd9, 0xc3 },
+		.ilen	= 8,
+		.result	= { 0x74, 0x65, 0x73, 0x74, 0x20, 0x6d, 0x65, 0x2e },
+		.rlen	= 8,
+	}, {
+		.key	= { 0x09, 0x65, 0x43, 0x11, 0x66, 0x44, 0x39, 0x25,
+			    0x51, 0x3a, 0x16, 0x10, 0x0a, 0x08, 0x12, 0x6e },
+		.klen	= 16,
+		.input	= { 0xe2, 0x04, 0xdb, 0xf2, 0x89, 0x85, 0x9e, 0xea, 
+			    0x61, 0x35, 0xaa, 0xed, 0xb5, 0xcb, 0x71, 0x2c },
+		.ilen	= 16,
+		.result	= { 0x6c, 0x6f, 0x6e, 0x67, 0x65, 0x72, 0x5f, 0x74, 
+			    0x65, 0x73, 0x74, 0x5f, 0x76, 0x65, 0x63, 0x74 },
+		.rlen	= 16,
+	}, {
+		.key	= { 0x4d, 0x76, 0x32, 0x17, 0x05, 0x3f, 0x75, 0x2c,
+			    0x5d, 0x04, 0x16, 0x36, 0x15, 0x72, 0x63, 0x2f },
+		.klen	= 16,
+		.input	= { 0x0b, 0x03, 0xcd, 0x8a, 0xbe, 0x95, 0xfd, 0xb1, 
+			    0xc1, 0x44, 0x91, 0x0b, 0xa5, 0xc9, 0x1b, 0xb4, 
+			    0xa9, 0xda, 0x1e, 0x9e, 0xb1, 0x3e, 0x2a, 0x8f, 
+			    0xea, 0xa5, 0x6a, 0x85, 0xd1, 0xf4, 0xa8, 0xa5 },
+		.ilen	= 32,
+		.result	= { 0x54, 0x65, 0x61, 0x20, 0x69, 0x73, 0x20, 0x67, 
+			    0x6f, 0x6f, 0x64, 0x20, 0x66, 0x6f, 0x72, 0x20, 
+			    0x79, 0x6f, 0x75, 0x21, 0x21, 0x21, 0x20, 0x72, 
+			    0x65, 0x61, 0x6c, 0x6c, 0x79, 0x21, 0x21, 0x21 },
+		.rlen	= 32,
+	}
+};
+
+
 
 /*
  * Compression stuff.
@@ -1771,4 +1960,5 @@ struct hash_testvec michael_mic_tv_template[] =
 		.digest = { 0x0a, 0x94, 0x2b, 0x12, 0x4e, 0xca, 0xa5, 0x46 },
 	}
 };
+
 #endif	/* _CRYPTO_TCRYPT_H */

crypto/tea.c

+/* 
+ * Cryptographic API.
+ *
+ * TEA and Xtended TEA Algorithms
+ *
+ * The TEA and Xtended TEA algorithms were developed by David Wheeler 
+ * and Roger Needham at the Computer Laboratory of Cambridge University.
+ *
+ * Copyright (c) 2004 Aaron Grothe ajgrothe@yahoo.com
+ *
+ * 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 TEA_KEY_SIZE		16
+#define TEA_BLOCK_SIZE		8
+#define TEA_ROUNDS		32
+#define TEA_DELTA		0x9e3779b9
+
+#define XTEA_KEY_SIZE		16
+#define XTEA_BLOCK_SIZE		8
+#define XTEA_ROUNDS		32
+#define XTEA_DELTA		0x9e3779b9
+
+#define u32_in(x) le32_to_cpu(*(const u32 *)(x))
+#define u32_out(to, from) (*(u32 *)(to) = cpu_to_le32(from))
+
+struct tea_ctx {
+	u32 KEY[4];
+};
+
+struct xtea_ctx {
+	u32 KEY[4];
+};
+
+static int tea_setkey(void *ctx_arg, const u8 *in_key,
+                       unsigned int key_len, u32 *flags)
+{ 
+
+	struct tea_ctx *ctx = ctx_arg;
+	
+	if (key_len != 16)
+	{
+		*flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
+		return -EINVAL;
+	}
+
+	ctx->KEY[0] = u32_in (in_key);
+	ctx->KEY[1] = u32_in (in_key + 4);
+	ctx->KEY[2] = u32_in (in_key + 8);
+	ctx->KEY[3] = u32_in (in_key + 12);
+
+	return 0; 
+
+}
+
+static void tea_encrypt(void *ctx_arg, u8 *dst, const u8 *src)
+{ 
+	u32 y, z, n, sum = 0;
+	u32 k0, k1, k2, k3;
+
+	struct tea_ctx *ctx = ctx_arg;
+
+	y = u32_in (src);
+	z = u32_in (src + 4);
+
+	k0 = ctx->KEY[0];
+	k1 = ctx->KEY[1];
+	k2 = ctx->KEY[2];
+	k3 = ctx->KEY[3];
+
+	n = TEA_ROUNDS;
+
+	while (n-- > 0) {
+		sum += TEA_DELTA;
+		y += ((z << 4) + k0) ^ (z + sum) ^ ((z >> 5) + k1);
+		z += ((y << 4) + k2) ^ (y + sum) ^ ((y >> 5) + k3);
+	}
+	
+	u32_out (dst, y);
+	u32_out (dst + 4, z);
+}
+
+static void tea_decrypt(void *ctx_arg, u8 *dst, const u8 *src)
+{ 
+	u32 y, z, n, sum;
+	u32 k0, k1, k2, k3;
+
+	struct tea_ctx *ctx = ctx_arg;
+
+	y = u32_in (src);
+	z = u32_in (src + 4);
+
+	k0 = ctx->KEY[0];
+	k1 = ctx->KEY[1];
+	k2 = ctx->KEY[2];
+	k3 = ctx->KEY[3];
+
+	sum = TEA_DELTA << 5;
+
+	n = TEA_ROUNDS;
+
+	while (n-- > 0) {
+		z -= ((y << 4) + k2) ^ (y + sum) ^ ((y >> 5) + k3);
+		y -= ((z << 4) + k0) ^ (z + sum) ^ ((z >> 5) + k1);
+		sum -= TEA_DELTA;
+	}
+	
+	u32_out (dst, y);
+	u32_out (dst + 4, z);
+
+}
+
+static int xtea_setkey(void *ctx_arg, const u8 *in_key,
+                       unsigned int key_len, u32 *flags)
+{ 
+
+	struct xtea_ctx *ctx = ctx_arg;
+	
+	if (key_len != 16)
+	{
+		*flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
+		return -EINVAL;
+	}
+
+	ctx->KEY[0] = u32_in (in_key);
+	ctx->KEY[1] = u32_in (in_key + 4);
+	ctx->KEY[2] = u32_in (in_key + 8);
+	ctx->KEY[3] = u32_in (in_key + 12);
+
+	return 0; 
+
+}
+
+static void xtea_encrypt(void *ctx_arg, u8 *dst, const u8 *src)
+{ 
+
+	u32 y, z, sum = 0;
+	u32 limit = XTEA_DELTA * XTEA_ROUNDS;
+
+	struct xtea_ctx *ctx = ctx_arg;
+
+	y = u32_in (src);
+	z = u32_in (src + 4);
+
+	while (sum != limit) {
+		y += (z << 4 ^ z >> 5) + (z ^ sum) + ctx->KEY[sum&3]; 
+		sum += TEA_DELTA;
+		z += (y << 4 ^ y >> 5) + (y ^ sum) + ctx->KEY[sum>>11 &3]; 
+	}
+	
+	u32_out (dst, y);
+	u32_out (dst + 4, z);
+
+}
+
+static void xtea_decrypt(void *ctx_arg, u8 *dst, const u8 *src)
+{ 
+
+	u32 y, z, sum;
+	struct tea_ctx *ctx = ctx_arg;
+
+	y = u32_in (src);
+	z = u32_in (src + 4);
+
+	sum = XTEA_DELTA * XTEA_ROUNDS;
+
+	while (sum) {
+		z -= (y << 4 ^ y >> 5) + (y ^ sum) + ctx->KEY[sum>>11 & 3];
+		sum -= XTEA_DELTA;
+		y -= (z << 4 ^ z >> 5) + (z ^ sum) + ctx->KEY[sum & 3];
+	}
+	
+	u32_out (dst, y);
+	u32_out (dst + 4, z);
+
+}
+
+static struct crypto_alg tea_alg = {
+	.cra_name		=	"tea",
+	.cra_flags		=	CRYPTO_ALG_TYPE_CIPHER,
+	.cra_blocksize		=	TEA_BLOCK_SIZE,
+	.cra_ctxsize		=	sizeof (struct tea_ctx),
+	.cra_module		=	THIS_MODULE,
+	.cra_list		=	LIST_HEAD_INIT(tea_alg.cra_list),
+	.cra_u			=	{ .cipher = {
+	.cia_min_keysize	=	TEA_KEY_SIZE,
+	.cia_max_keysize	=	TEA_KEY_SIZE,
+	.cia_setkey		= 	tea_setkey,
+	.cia_encrypt		=	tea_encrypt,
+	.cia_decrypt		=	tea_decrypt } }
+};
+
+static struct crypto_alg xtea_alg = {
+	.cra_name		=	"xtea",
+	.cra_flags		=	CRYPTO_ALG_TYPE_CIPHER,
+	.cra_blocksize		=	XTEA_BLOCK_SIZE,
+	.cra_ctxsize		=	sizeof (struct xtea_ctx),
+	.cra_module		=	THIS_MODULE,
+	.cra_list		=	LIST_HEAD_INIT(xtea_alg.cra_list),
+	.cra_u			=	{ .cipher = {
+	.cia_min_keysize	=	XTEA_KEY_SIZE,
+	.cia_max_keysize	=	XTEA_KEY_SIZE,
+	.cia_setkey		= 	xtea_setkey,
+	.cia_encrypt		=	xtea_encrypt,
+	.cia_decrypt		=	xtea_decrypt } }
+};
+
+static int __init init(void)
+{
+	int ret = 0;
+	
+	ret = crypto_register_alg(&tea_alg);
+	if (ret < 0)
+		goto out;
+
+	ret = crypto_register_alg(&xtea_alg);
+	if (ret < 0) {
+		crypto_unregister_alg(&tea_alg);
+		goto out;
+	}
+
+out:	
+	return ret;
+}
+
+static void __exit fini(void)
+{
+	crypto_unregister_alg(&tea_alg);
+	crypto_unregister_alg(&xtea_alg);
+}
+
+MODULE_ALIAS("xtea");
+
+module_init(init);
+module_exit(fini);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("TEA & XTEA Cryptographic Algorithms");