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| author | miod <> | 2014-06-21 12:07:02 +0000 |
|---|---|---|
| committer | miod <> | 2014-06-21 12:07:02 +0000 |
| commit | 08ade2d2f3bc84d98839ae9064475c6fca84a29f (patch) | |
| tree | 0267dceffc3c369fe1760e56382b3a9b490226d7 /src/lib/libcrypto/cmac/cm_pmeth.c | |
| parent | 2ef56674b5be6f3ed20a4d2131278e87cf0664d3 (diff) | |
| download | openbsd-08ade2d2f3bc84d98839ae9064475c6fca84a29f.tar.gz openbsd-08ade2d2f3bc84d98839ae9064475c6fca84a29f.tar.bz2 openbsd-08ade2d2f3bc84d98839ae9064475c6fca84a29f.zip | |
KNF
Diffstat (limited to 'src/lib/libcrypto/cmac/cm_pmeth.c')
| -rw-r--r-- | src/lib/libcrypto/cmac/cm_pmeth.c | 115 |
1 files changed, 60 insertions, 55 deletions
diff --git a/src/lib/libcrypto/cmac/cm_pmeth.c b/src/lib/libcrypto/cmac/cm_pmeth.c index b65c1795ae..3010f91aca 100644 --- a/src/lib/libcrypto/cmac/cm_pmeth.c +++ b/src/lib/libcrypto/cmac/cm_pmeth.c | |||
| @@ -1,4 +1,4 @@ | |||
| 1 | /* $OpenBSD: cm_pmeth.c,v 1.4 2014/06/12 15:49:28 deraadt Exp $ */ | 1 | /* $OpenBSD: cm_pmeth.c,v 1.5 2014/06/21 12:07:02 miod Exp $ */ |
| 2 | /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL | 2 | /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL |
| 3 | * project 2010. | 3 | * project 2010. |
| 4 | */ | 4 | */ |
| @@ -61,135 +61,140 @@ | |||
| 61 | 61 | ||
| 62 | /* The context structure and "key" is simply a CMAC_CTX */ | 62 | /* The context structure and "key" is simply a CMAC_CTX */ |
| 63 | 63 | ||
| 64 | static int pkey_cmac_init(EVP_PKEY_CTX *ctx) | 64 | static int |
| 65 | { | 65 | pkey_cmac_init(EVP_PKEY_CTX *ctx) |
| 66 | { | ||
| 66 | ctx->data = CMAC_CTX_new(); | 67 | ctx->data = CMAC_CTX_new(); |
| 67 | if (!ctx->data) | 68 | if (!ctx->data) |
| 68 | return 0; | 69 | return 0; |
| 69 | ctx->keygen_info_count = 0; | 70 | ctx->keygen_info_count = 0; |
| 70 | return 1; | 71 | return 1; |
| 71 | } | 72 | } |
| 72 | 73 | ||
| 73 | static int pkey_cmac_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src) | 74 | static int |
| 74 | { | 75 | pkey_cmac_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src) |
| 76 | { | ||
| 75 | if (!pkey_cmac_init(dst)) | 77 | if (!pkey_cmac_init(dst)) |
| 76 | return 0; | 78 | return 0; |
| 77 | if (!CMAC_CTX_copy(dst->data, src->data)) | 79 | if (!CMAC_CTX_copy(dst->data, src->data)) |
| 78 | return 0; | 80 | return 0; |
| 79 | return 1; | 81 | return 1; |
| 80 | } | 82 | } |
| 81 | 83 | ||
| 82 | static void pkey_cmac_cleanup(EVP_PKEY_CTX *ctx) | 84 | static void |
| 83 | { | 85 | pkey_cmac_cleanup(EVP_PKEY_CTX *ctx) |
| 86 | { | ||
| 84 | CMAC_CTX_free(ctx->data); | 87 | CMAC_CTX_free(ctx->data); |
| 85 | } | 88 | } |
| 86 | 89 | ||
| 87 | static int pkey_cmac_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey) | 90 | static int |
| 88 | { | 91 | pkey_cmac_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey) |
| 92 | { | ||
| 89 | CMAC_CTX *cmkey = CMAC_CTX_new(); | 93 | CMAC_CTX *cmkey = CMAC_CTX_new(); |
| 90 | CMAC_CTX *cmctx = ctx->data; | 94 | CMAC_CTX *cmctx = ctx->data; |
| 95 | |||
| 91 | if (!cmkey) | 96 | if (!cmkey) |
| 92 | return 0; | 97 | return 0; |
| 93 | if (!CMAC_CTX_copy(cmkey, cmctx)) | 98 | if (!CMAC_CTX_copy(cmkey, cmctx)) { |
| 94 | { | ||
| 95 | CMAC_CTX_free(cmkey); | 99 | CMAC_CTX_free(cmkey); |
| 96 | return 0; | 100 | return 0; |
| 97 | } | 101 | } |
| 98 | EVP_PKEY_assign(pkey, EVP_PKEY_CMAC, cmkey); | 102 | EVP_PKEY_assign(pkey, EVP_PKEY_CMAC, cmkey); |
| 99 | 103 | ||
| 100 | return 1; | 104 | return 1; |
| 101 | } | 105 | } |
| 102 | 106 | ||
| 103 | static int int_update(EVP_MD_CTX *ctx,const void *data,size_t count) | 107 | static int |
| 104 | { | 108 | int_update(EVP_MD_CTX *ctx,const void *data,size_t count) |
| 109 | { | ||
| 105 | if (!CMAC_Update(ctx->pctx->data, data, count)) | 110 | if (!CMAC_Update(ctx->pctx->data, data, count)) |
| 106 | return 0; | 111 | return 0; |
| 107 | return 1; | 112 | return 1; |
| 108 | } | 113 | } |
| 109 | 114 | ||
| 110 | static int cmac_signctx_init(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx) | 115 | static int |
| 111 | { | 116 | cmac_signctx_init(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx) |
| 117 | { | ||
| 112 | EVP_MD_CTX_set_flags(mctx, EVP_MD_CTX_FLAG_NO_INIT); | 118 | EVP_MD_CTX_set_flags(mctx, EVP_MD_CTX_FLAG_NO_INIT); |
| 113 | mctx->update = int_update; | 119 | mctx->update = int_update; |
| 114 | return 1; | 120 | return 1; |
| 115 | } | 121 | } |
| 116 | 122 | ||
| 117 | static int cmac_signctx(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen, | 123 | static int |
| 118 | EVP_MD_CTX *mctx) | 124 | cmac_signctx(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen, |
| 119 | { | 125 | EVP_MD_CTX *mctx) |
| 126 | { | ||
| 120 | return CMAC_Final(ctx->data, sig, siglen); | 127 | return CMAC_Final(ctx->data, sig, siglen); |
| 121 | } | 128 | } |
| 122 | 129 | ||
| 123 | static int pkey_cmac_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2) | 130 | static int |
| 124 | { | 131 | pkey_cmac_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2) |
| 132 | { | ||
| 125 | CMAC_CTX *cmctx = ctx->data; | 133 | CMAC_CTX *cmctx = ctx->data; |
| 126 | switch (type) | ||
| 127 | { | ||
| 128 | 134 | ||
| 129 | case EVP_PKEY_CTRL_SET_MAC_KEY: | 135 | switch (type) { |
| 136 | case EVP_PKEY_CTRL_SET_MAC_KEY: | ||
| 130 | if (!p2 || p1 < 0) | 137 | if (!p2 || p1 < 0) |
| 131 | return 0; | 138 | return 0; |
| 132 | if (!CMAC_Init(cmctx, p2, p1, NULL, NULL)) | 139 | if (!CMAC_Init(cmctx, p2, p1, NULL, NULL)) |
| 133 | return 0; | 140 | return 0; |
| 134 | break; | 141 | break; |
| 135 | 142 | ||
| 136 | case EVP_PKEY_CTRL_CIPHER: | 143 | case EVP_PKEY_CTRL_CIPHER: |
| 137 | if (!CMAC_Init(cmctx, NULL, 0, p2, ctx->engine)) | 144 | if (!CMAC_Init(cmctx, NULL, 0, p2, ctx->engine)) |
| 138 | return 0; | 145 | return 0; |
| 139 | break; | 146 | break; |
| 140 | 147 | ||
| 141 | case EVP_PKEY_CTRL_MD: | 148 | case EVP_PKEY_CTRL_MD: |
| 142 | if (ctx->pkey && !CMAC_CTX_copy(ctx->data, | 149 | if (ctx->pkey && !CMAC_CTX_copy(ctx->data, |
| 143 | (CMAC_CTX *)ctx->pkey->pkey.ptr)) | 150 | (CMAC_CTX *)ctx->pkey->pkey.ptr)) |
| 144 | return 0; | 151 | return 0; |
| 145 | if (!CMAC_Init(cmctx, NULL, 0, NULL, NULL)) | 152 | if (!CMAC_Init(cmctx, NULL, 0, NULL, NULL)) |
| 146 | return 0; | 153 | return 0; |
| 147 | break; | 154 | break; |
| 148 | 155 | ||
| 149 | default: | 156 | default: |
| 150 | return -2; | 157 | return -2; |
| 151 | |||
| 152 | } | ||
| 153 | return 1; | ||
| 154 | } | 158 | } |
| 159 | return 1; | ||
| 160 | } | ||
| 155 | 161 | ||
| 156 | static int pkey_cmac_ctrl_str(EVP_PKEY_CTX *ctx, | 162 | static int |
| 157 | const char *type, const char *value) | 163 | pkey_cmac_ctrl_str(EVP_PKEY_CTX *ctx, const char *type, const char *value) |
| 158 | { | 164 | { |
| 159 | if (!value) | 165 | if (!value) |
| 160 | { | ||
| 161 | return 0; | 166 | return 0; |
| 162 | } | 167 | if (!strcmp(type, "key")) { |
| 163 | if (!strcmp(type, "key")) | ||
| 164 | { | ||
| 165 | void *p = (void *)value; | 168 | void *p = (void *)value; |
| 166 | return pkey_cmac_ctrl(ctx, EVP_PKEY_CTRL_SET_MAC_KEY, | 169 | return pkey_cmac_ctrl(ctx, EVP_PKEY_CTRL_SET_MAC_KEY, |
| 167 | strlen(p), p); | 170 | strlen(p), p); |
| 168 | } | 171 | } |
| 169 | if (!strcmp(type, "cipher")) | 172 | if (!strcmp(type, "cipher")) { |
| 170 | { | ||
| 171 | const EVP_CIPHER *c; | 173 | const EVP_CIPHER *c; |
| 174 | |||
| 172 | c = EVP_get_cipherbyname(value); | 175 | c = EVP_get_cipherbyname(value); |
| 173 | if (!c) | 176 | if (!c) |
| 174 | return 0; | 177 | return 0; |
| 175 | return pkey_cmac_ctrl(ctx, EVP_PKEY_CTRL_CIPHER, -1, (void *)c); | 178 | return pkey_cmac_ctrl(ctx, EVP_PKEY_CTRL_CIPHER, -1, (void *)c); |
| 176 | } | 179 | } |
| 177 | if (!strcmp(type, "hexkey")) | 180 | if (!strcmp(type, "hexkey")) { |
| 178 | { | ||
| 179 | unsigned char *key; | 181 | unsigned char *key; |
| 180 | int r; | 182 | int r; |
| 181 | long keylen; | 183 | long keylen; |
| 184 | |||
| 182 | key = string_to_hex(value, &keylen); | 185 | key = string_to_hex(value, &keylen); |
| 183 | if (!key) | 186 | if (!key) |
| 184 | return 0; | 187 | return 0; |
| 185 | r = pkey_cmac_ctrl(ctx, EVP_PKEY_CTRL_SET_MAC_KEY, keylen, key); | 188 | r = pkey_cmac_ctrl(ctx, EVP_PKEY_CTRL_SET_MAC_KEY, keylen, key); |
| 186 | free(key); | 189 | free(key); |
| 187 | return r; | 190 | return r; |
| 188 | } | ||
| 189 | return -2; | ||
| 190 | } | 191 | } |
| 191 | 192 | ||
| 192 | const EVP_PKEY_METHOD cmac_pkey_meth = { | 193 | return -2; |
| 194 | } | ||
| 195 | |||
| 196 | const EVP_PKEY_METHOD | ||
| 197 | cmac_pkey_meth = { | ||
| 193 | .pkey_id = EVP_PKEY_CMAC, | 198 | .pkey_id = EVP_PKEY_CMAC, |
| 194 | .flags = EVP_PKEY_FLAG_SIGCTX_CUSTOM, | 199 | .flags = EVP_PKEY_FLAG_SIGCTX_CUSTOM, |
| 195 | 200 | ||
