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authorAdrian-Ken Rueegsegger <ken@codelabs.ch>2008-12-07 06:34:37 -0500
committerHerbert Xu <herbert@gondor.apana.org.au>2008-12-24 19:02:22 -0500
commit4946510baac6aaa8658528e3deefc7e9ba2951a9 (patch)
treeabffe4ff5e4d7b0f5b6fa29a73d6f7de53cbd06d /crypto
parentf63fbd3d501b4283e1551e195cb74434a838064f (diff)
crypto: wp512 - Switch to shash
This patch changes wp512, wp384 and wp256 to the new shash interface. Signed-off-by: Adrian-Ken Rueegsegger <ken@codelabs.ch> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/Kconfig2
-rw-r--r--crypto/wp512.c121
2 files changed, 66 insertions, 57 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig
index a863d7e5f9e8..bc29216aaada 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -394,7 +394,7 @@ config CRYPTO_TGR192
394 394
395config CRYPTO_WP512 395config CRYPTO_WP512
396 tristate "Whirlpool digest algorithms" 396 tristate "Whirlpool digest algorithms"
397 select CRYPTO_ALGAPI 397 select CRYPTO_HASH
398 help 398 help
399 Whirlpool hash algorithm 512, 384 and 256-bit hashes 399 Whirlpool hash algorithm 512, 384 and 256-bit hashes
400 400
diff --git a/crypto/wp512.c b/crypto/wp512.c
index bff28560d66d..723427273687 100644
--- a/crypto/wp512.c
+++ b/crypto/wp512.c
@@ -19,11 +19,11 @@
19 * (at your option) any later version. 19 * (at your option) any later version.
20 * 20 *
21 */ 21 */
22#include <crypto/internal/hash.h>
22#include <linux/init.h> 23#include <linux/init.h>
23#include <linux/module.h> 24#include <linux/module.h>
24#include <linux/mm.h> 25#include <linux/mm.h>
25#include <asm/byteorder.h> 26#include <asm/byteorder.h>
26#include <linux/crypto.h>
27#include <linux/types.h> 27#include <linux/types.h>
28 28
29#define WP512_DIGEST_SIZE 64 29#define WP512_DIGEST_SIZE 64
@@ -980,8 +980,8 @@ static void wp512_process_buffer(struct wp512_ctx *wctx) {
980 980
981} 981}
982 982
983static void wp512_init(struct crypto_tfm *tfm) { 983static int wp512_init(struct shash_desc *desc) {
984 struct wp512_ctx *wctx = crypto_tfm_ctx(tfm); 984 struct wp512_ctx *wctx = shash_desc_ctx(desc);
985 int i; 985 int i;
986 986
987 memset(wctx->bitLength, 0, 32); 987 memset(wctx->bitLength, 0, 32);
@@ -990,12 +990,14 @@ static void wp512_init(struct crypto_tfm *tfm) {
990 for (i = 0; i < 8; i++) { 990 for (i = 0; i < 8; i++) {
991 wctx->hash[i] = 0L; 991 wctx->hash[i] = 0L;
992 } 992 }
993
994 return 0;
993} 995}
994 996
995static void wp512_update(struct crypto_tfm *tfm, const u8 *source, 997static int wp512_update(struct shash_desc *desc, const u8 *source,
996 unsigned int len) 998 unsigned int len)
997{ 999{
998 struct wp512_ctx *wctx = crypto_tfm_ctx(tfm); 1000 struct wp512_ctx *wctx = shash_desc_ctx(desc);
999 int sourcePos = 0; 1001 int sourcePos = 0;
1000 unsigned int bits_len = len * 8; // convert to number of bits 1002 unsigned int bits_len = len * 8; // convert to number of bits
1001 int sourceGap = (8 - ((int)bits_len & 7)) & 7; 1003 int sourceGap = (8 - ((int)bits_len & 7)) & 7;
@@ -1051,11 +1053,12 @@ static void wp512_update(struct crypto_tfm *tfm, const u8 *source,
1051 wctx->bufferBits = bufferBits; 1053 wctx->bufferBits = bufferBits;
1052 wctx->bufferPos = bufferPos; 1054 wctx->bufferPos = bufferPos;
1053 1055
1056 return 0;
1054} 1057}
1055 1058
1056static void wp512_final(struct crypto_tfm *tfm, u8 *out) 1059static int wp512_final(struct shash_desc *desc, u8 *out)
1057{ 1060{
1058 struct wp512_ctx *wctx = crypto_tfm_ctx(tfm); 1061 struct wp512_ctx *wctx = shash_desc_ctx(desc);
1059 int i; 1062 int i;
1060 u8 *buffer = wctx->buffer; 1063 u8 *buffer = wctx->buffer;
1061 u8 *bitLength = wctx->bitLength; 1064 u8 *bitLength = wctx->bitLength;
@@ -1084,89 +1087,95 @@ static void wp512_final(struct crypto_tfm *tfm, u8 *out)
1084 digest[i] = cpu_to_be64(wctx->hash[i]); 1087 digest[i] = cpu_to_be64(wctx->hash[i]);
1085 wctx->bufferBits = bufferBits; 1088 wctx->bufferBits = bufferBits;
1086 wctx->bufferPos = bufferPos; 1089 wctx->bufferPos = bufferPos;
1090
1091 return 0;
1087} 1092}
1088 1093
1089static void wp384_final(struct crypto_tfm *tfm, u8 *out) 1094static int wp384_final(struct shash_desc *desc, u8 *out)
1090{ 1095{
1091 u8 D[64]; 1096 u8 D[64];
1092 1097
1093 wp512_final(tfm, D); 1098 wp512_final(desc, D);
1094 memcpy (out, D, WP384_DIGEST_SIZE); 1099 memcpy (out, D, WP384_DIGEST_SIZE);
1095 memset (D, 0, WP512_DIGEST_SIZE); 1100 memset (D, 0, WP512_DIGEST_SIZE);
1101
1102 return 0;
1096} 1103}
1097 1104
1098static void wp256_final(struct crypto_tfm *tfm, u8 *out) 1105static int wp256_final(struct shash_desc *desc, u8 *out)
1099{ 1106{
1100 u8 D[64]; 1107 u8 D[64];
1101 1108
1102 wp512_final(tfm, D); 1109 wp512_final(desc, D);
1103 memcpy (out, D, WP256_DIGEST_SIZE); 1110 memcpy (out, D, WP256_DIGEST_SIZE);
1104 memset (D, 0, WP512_DIGEST_SIZE); 1111 memset (D, 0, WP512_DIGEST_SIZE);
1112
1113 return 0;
1105} 1114}
1106 1115
1107static struct crypto_alg wp512 = { 1116static struct shash_alg wp512 = {
1108 .cra_name = "wp512", 1117 .digestsize = WP512_DIGEST_SIZE,
1109 .cra_flags = CRYPTO_ALG_TYPE_DIGEST, 1118 .init = wp512_init,
1110 .cra_blocksize = WP512_BLOCK_SIZE, 1119 .update = wp512_update,
1111 .cra_ctxsize = sizeof(struct wp512_ctx), 1120 .final = wp512_final,
1112 .cra_module = THIS_MODULE, 1121 .descsize = sizeof(struct wp512_ctx),
1113 .cra_list = LIST_HEAD_INIT(wp512.cra_list), 1122 .base = {
1114 .cra_u = { .digest = { 1123 .cra_name = "wp512",
1115 .dia_digestsize = WP512_DIGEST_SIZE, 1124 .cra_flags = CRYPTO_ALG_TYPE_SHASH,
1116 .dia_init = wp512_init, 1125 .cra_blocksize = WP512_BLOCK_SIZE,
1117 .dia_update = wp512_update, 1126 .cra_module = THIS_MODULE,
1118 .dia_final = wp512_final } } 1127 }
1119}; 1128};
1120 1129
1121static struct crypto_alg wp384 = { 1130static struct shash_alg wp384 = {
1122 .cra_name = "wp384", 1131 .digestsize = WP384_DIGEST_SIZE,
1123 .cra_flags = CRYPTO_ALG_TYPE_DIGEST, 1132 .init = wp512_init,
1124 .cra_blocksize = WP512_BLOCK_SIZE, 1133 .update = wp512_update,
1125 .cra_ctxsize = sizeof(struct wp512_ctx), 1134 .final = wp384_final,
1126 .cra_module = THIS_MODULE, 1135 .descsize = sizeof(struct wp512_ctx),
1127 .cra_list = LIST_HEAD_INIT(wp384.cra_list), 1136 .base = {
1128 .cra_u = { .digest = { 1137 .cra_name = "wp384",
1129 .dia_digestsize = WP384_DIGEST_SIZE, 1138 .cra_flags = CRYPTO_ALG_TYPE_SHASH,
1130 .dia_init = wp512_init, 1139 .cra_blocksize = WP512_BLOCK_SIZE,
1131 .dia_update = wp512_update, 1140 .cra_module = THIS_MODULE,
1132 .dia_final = wp384_final } } 1141 }
1133}; 1142};
1134 1143
1135static struct crypto_alg wp256 = { 1144static struct shash_alg wp256 = {
1136 .cra_name = "wp256", 1145 .digestsize = WP256_DIGEST_SIZE,
1137 .cra_flags = CRYPTO_ALG_TYPE_DIGEST, 1146 .init = wp512_init,
1138 .cra_blocksize = WP512_BLOCK_SIZE, 1147 .update = wp512_update,
1139 .cra_ctxsize = sizeof(struct wp512_ctx), 1148 .final = wp256_final,
1140 .cra_module = THIS_MODULE, 1149 .descsize = sizeof(struct wp512_ctx),
1141 .cra_list = LIST_HEAD_INIT(wp256.cra_list), 1150 .base = {
1142 .cra_u = { .digest = { 1151 .cra_name = "wp256",
1143 .dia_digestsize = WP256_DIGEST_SIZE, 1152 .cra_flags = CRYPTO_ALG_TYPE_SHASH,
1144 .dia_init = wp512_init, 1153 .cra_blocksize = WP512_BLOCK_SIZE,
1145 .dia_update = wp512_update, 1154 .cra_module = THIS_MODULE,
1146 .dia_final = wp256_final } } 1155 }
1147}; 1156};
1148 1157
1149static int __init wp512_mod_init(void) 1158static int __init wp512_mod_init(void)
1150{ 1159{
1151 int ret = 0; 1160 int ret = 0;
1152 1161
1153 ret = crypto_register_alg(&wp512); 1162 ret = crypto_register_shash(&wp512);
1154 1163
1155 if (ret < 0) 1164 if (ret < 0)
1156 goto out; 1165 goto out;
1157 1166
1158 ret = crypto_register_alg(&wp384); 1167 ret = crypto_register_shash(&wp384);
1159 if (ret < 0) 1168 if (ret < 0)
1160 { 1169 {
1161 crypto_unregister_alg(&wp512); 1170 crypto_unregister_shash(&wp512);
1162 goto out; 1171 goto out;
1163 } 1172 }
1164 1173
1165 ret = crypto_register_alg(&wp256); 1174 ret = crypto_register_shash(&wp256);
1166 if (ret < 0) 1175 if (ret < 0)
1167 { 1176 {
1168 crypto_unregister_alg(&wp512); 1177 crypto_unregister_shash(&wp512);
1169 crypto_unregister_alg(&wp384); 1178 crypto_unregister_shash(&wp384);
1170 } 1179 }
1171out: 1180out:
1172 return ret; 1181 return ret;
@@ -1174,9 +1183,9 @@ out:
1174 1183
1175static void __exit wp512_mod_fini(void) 1184static void __exit wp512_mod_fini(void)
1176{ 1185{
1177 crypto_unregister_alg(&wp512); 1186 crypto_unregister_shash(&wp512);
1178 crypto_unregister_alg(&wp384); 1187 crypto_unregister_shash(&wp384);
1179 crypto_unregister_alg(&wp256); 1188 crypto_unregister_shash(&wp256);
1180} 1189}
1181 1190
1182MODULE_ALIAS("wp384"); 1191MODULE_ALIAS("wp384");