diff options
Diffstat (limited to 'src/lib/libcrypto/hmac/hmac.c')
-rw-r--r-- | src/lib/libcrypto/hmac/hmac.c | 90 |
1 files changed, 62 insertions, 28 deletions
diff --git a/src/lib/libcrypto/hmac/hmac.c b/src/lib/libcrypto/hmac/hmac.c index cbc1c76a57..45015fe754 100644 --- a/src/lib/libcrypto/hmac/hmac.c +++ b/src/lib/libcrypto/hmac/hmac.c | |||
@@ -61,9 +61,7 @@ | |||
61 | #include "cryptlib.h" | 61 | #include "cryptlib.h" |
62 | #include <openssl/hmac.h> | 62 | #include <openssl/hmac.h> |
63 | 63 | ||
64 | #ifndef OPENSSL_FIPS | 64 | int HMAC_Init_ex(HMAC_CTX *ctx, const void *key, int len, |
65 | |||
66 | void HMAC_Init_ex(HMAC_CTX *ctx, const void *key, int len, | ||
67 | const EVP_MD *md, ENGINE *impl) | 65 | const EVP_MD *md, ENGINE *impl) |
68 | { | 66 | { |
69 | int i,j,reset=0; | 67 | int i,j,reset=0; |
@@ -84,10 +82,13 @@ void HMAC_Init_ex(HMAC_CTX *ctx, const void *key, int len, | |||
84 | OPENSSL_assert(j <= (int)sizeof(ctx->key)); | 82 | OPENSSL_assert(j <= (int)sizeof(ctx->key)); |
85 | if (j < len) | 83 | if (j < len) |
86 | { | 84 | { |
87 | EVP_DigestInit_ex(&ctx->md_ctx,md, impl); | 85 | if (!EVP_DigestInit_ex(&ctx->md_ctx,md, impl)) |
88 | EVP_DigestUpdate(&ctx->md_ctx,key,len); | 86 | goto err; |
89 | EVP_DigestFinal_ex(&(ctx->md_ctx),ctx->key, | 87 | if (!EVP_DigestUpdate(&ctx->md_ctx,key,len)) |
90 | &ctx->key_length); | 88 | goto err; |
89 | if (!EVP_DigestFinal_ex(&(ctx->md_ctx),ctx->key, | ||
90 | &ctx->key_length)) | ||
91 | goto err; | ||
91 | } | 92 | } |
92 | else | 93 | else |
93 | { | 94 | { |
@@ -104,31 +105,38 @@ void HMAC_Init_ex(HMAC_CTX *ctx, const void *key, int len, | |||
104 | { | 105 | { |
105 | for (i=0; i<HMAC_MAX_MD_CBLOCK; i++) | 106 | for (i=0; i<HMAC_MAX_MD_CBLOCK; i++) |
106 | pad[i]=0x36^ctx->key[i]; | 107 | pad[i]=0x36^ctx->key[i]; |
107 | EVP_DigestInit_ex(&ctx->i_ctx,md, impl); | 108 | if (!EVP_DigestInit_ex(&ctx->i_ctx,md, impl)) |
108 | EVP_DigestUpdate(&ctx->i_ctx,pad,EVP_MD_block_size(md)); | 109 | goto err; |
110 | if (!EVP_DigestUpdate(&ctx->i_ctx,pad,EVP_MD_block_size(md))) | ||
111 | goto err; | ||
109 | 112 | ||
110 | for (i=0; i<HMAC_MAX_MD_CBLOCK; i++) | 113 | for (i=0; i<HMAC_MAX_MD_CBLOCK; i++) |
111 | pad[i]=0x5c^ctx->key[i]; | 114 | pad[i]=0x5c^ctx->key[i]; |
112 | EVP_DigestInit_ex(&ctx->o_ctx,md, impl); | 115 | if (!EVP_DigestInit_ex(&ctx->o_ctx,md, impl)) |
113 | EVP_DigestUpdate(&ctx->o_ctx,pad,EVP_MD_block_size(md)); | 116 | goto err; |
117 | if (!EVP_DigestUpdate(&ctx->o_ctx,pad,EVP_MD_block_size(md))) | ||
118 | goto err; | ||
114 | } | 119 | } |
115 | EVP_MD_CTX_copy_ex(&ctx->md_ctx,&ctx->i_ctx); | 120 | if (!EVP_MD_CTX_copy_ex(&ctx->md_ctx,&ctx->i_ctx)) |
121 | goto err; | ||
122 | return 1; | ||
123 | err: | ||
124 | return 0; | ||
116 | } | 125 | } |
117 | 126 | ||
118 | void HMAC_Init(HMAC_CTX *ctx, const void *key, int len, | 127 | int HMAC_Init(HMAC_CTX *ctx, const void *key, int len, const EVP_MD *md) |
119 | const EVP_MD *md) | ||
120 | { | 128 | { |
121 | if(key && md) | 129 | if(key && md) |
122 | HMAC_CTX_init(ctx); | 130 | HMAC_CTX_init(ctx); |
123 | HMAC_Init_ex(ctx,key,len,md, NULL); | 131 | return HMAC_Init_ex(ctx,key,len,md, NULL); |
124 | } | 132 | } |
125 | 133 | ||
126 | void HMAC_Update(HMAC_CTX *ctx, const unsigned char *data, size_t len) | 134 | int HMAC_Update(HMAC_CTX *ctx, const unsigned char *data, size_t len) |
127 | { | 135 | { |
128 | EVP_DigestUpdate(&ctx->md_ctx,data,len); | 136 | return EVP_DigestUpdate(&ctx->md_ctx,data,len); |
129 | } | 137 | } |
130 | 138 | ||
131 | void HMAC_Final(HMAC_CTX *ctx, unsigned char *md, unsigned int *len) | 139 | int HMAC_Final(HMAC_CTX *ctx, unsigned char *md, unsigned int *len) |
132 | { | 140 | { |
133 | int j; | 141 | int j; |
134 | unsigned int i; | 142 | unsigned int i; |
@@ -136,10 +144,17 @@ void HMAC_Final(HMAC_CTX *ctx, unsigned char *md, unsigned int *len) | |||
136 | 144 | ||
137 | j=EVP_MD_block_size(ctx->md); | 145 | j=EVP_MD_block_size(ctx->md); |
138 | 146 | ||
139 | EVP_DigestFinal_ex(&ctx->md_ctx,buf,&i); | 147 | if (!EVP_DigestFinal_ex(&ctx->md_ctx,buf,&i)) |
140 | EVP_MD_CTX_copy_ex(&ctx->md_ctx,&ctx->o_ctx); | 148 | goto err; |
141 | EVP_DigestUpdate(&ctx->md_ctx,buf,i); | 149 | if (!EVP_MD_CTX_copy_ex(&ctx->md_ctx,&ctx->o_ctx)) |
142 | EVP_DigestFinal_ex(&ctx->md_ctx,md,len); | 150 | goto err; |
151 | if (!EVP_DigestUpdate(&ctx->md_ctx,buf,i)) | ||
152 | goto err; | ||
153 | if (!EVP_DigestFinal_ex(&ctx->md_ctx,md,len)) | ||
154 | goto err; | ||
155 | return 1; | ||
156 | err: | ||
157 | return 0; | ||
143 | } | 158 | } |
144 | 159 | ||
145 | void HMAC_CTX_init(HMAC_CTX *ctx) | 160 | void HMAC_CTX_init(HMAC_CTX *ctx) |
@@ -149,6 +164,22 @@ void HMAC_CTX_init(HMAC_CTX *ctx) | |||
149 | EVP_MD_CTX_init(&ctx->md_ctx); | 164 | EVP_MD_CTX_init(&ctx->md_ctx); |
150 | } | 165 | } |
151 | 166 | ||
167 | int HMAC_CTX_copy(HMAC_CTX *dctx, HMAC_CTX *sctx) | ||
168 | { | ||
169 | if (!EVP_MD_CTX_copy(&dctx->i_ctx, &sctx->i_ctx)) | ||
170 | goto err; | ||
171 | if (!EVP_MD_CTX_copy(&dctx->o_ctx, &sctx->o_ctx)) | ||
172 | goto err; | ||
173 | if (!EVP_MD_CTX_copy(&dctx->md_ctx, &sctx->md_ctx)) | ||
174 | goto err; | ||
175 | memcpy(dctx->key, sctx->key, HMAC_MAX_MD_CBLOCK); | ||
176 | dctx->key_length = sctx->key_length; | ||
177 | dctx->md = sctx->md; | ||
178 | return 1; | ||
179 | err: | ||
180 | return 0; | ||
181 | } | ||
182 | |||
152 | void HMAC_CTX_cleanup(HMAC_CTX *ctx) | 183 | void HMAC_CTX_cleanup(HMAC_CTX *ctx) |
153 | { | 184 | { |
154 | EVP_MD_CTX_cleanup(&ctx->i_ctx); | 185 | EVP_MD_CTX_cleanup(&ctx->i_ctx); |
@@ -166,11 +197,16 @@ unsigned char *HMAC(const EVP_MD *evp_md, const void *key, int key_len, | |||
166 | 197 | ||
167 | if (md == NULL) md=m; | 198 | if (md == NULL) md=m; |
168 | HMAC_CTX_init(&c); | 199 | HMAC_CTX_init(&c); |
169 | HMAC_Init(&c,key,key_len,evp_md); | 200 | if (!HMAC_Init(&c,key,key_len,evp_md)) |
170 | HMAC_Update(&c,d,n); | 201 | goto err; |
171 | HMAC_Final(&c,md,md_len); | 202 | if (!HMAC_Update(&c,d,n)) |
203 | goto err; | ||
204 | if (!HMAC_Final(&c,md,md_len)) | ||
205 | goto err; | ||
172 | HMAC_CTX_cleanup(&c); | 206 | HMAC_CTX_cleanup(&c); |
173 | return(md); | 207 | return md; |
208 | err: | ||
209 | return NULL; | ||
174 | } | 210 | } |
175 | 211 | ||
176 | void HMAC_CTX_set_flags(HMAC_CTX *ctx, unsigned long flags) | 212 | void HMAC_CTX_set_flags(HMAC_CTX *ctx, unsigned long flags) |
@@ -179,5 +215,3 @@ void HMAC_CTX_set_flags(HMAC_CTX *ctx, unsigned long flags) | |||
179 | EVP_MD_CTX_set_flags(&ctx->o_ctx, flags); | 215 | EVP_MD_CTX_set_flags(&ctx->o_ctx, flags); |
180 | EVP_MD_CTX_set_flags(&ctx->md_ctx, flags); | 216 | EVP_MD_CTX_set_flags(&ctx->md_ctx, flags); |
181 | } | 217 | } |
182 | |||
183 | #endif | ||