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Side by Side Diff: openssl/crypto/hmac/hmac.c

Issue 9254031: Upgrade chrome's OpenSSL to same version Android ships with. (Closed) Base URL: http://src.chromium.org/svn/trunk/deps/third_party/openssl/
Patch Set: '' Created 8 years, 11 months ago
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1 /* crypto/hmac/hmac.c */ 1 /* crypto/hmac/hmac.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved. 3 * All rights reserved.
4 * 4 *
5 * This package is an SSL implementation written 5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com). 6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL. 7 * The implementation was written so as to conform with Netscapes SSL.
8 * 8 *
9 * This library is free for commercial and non-commercial use as long as 9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions 10 * the following conditions are aheared to. The following conditions
(...skipping 43 matching lines...) Expand 10 before | Expand all | Expand 10 after
54 * derivative of this code cannot be changed. i.e. this code cannot simply be 54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence 55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.] 56 * [including the GNU Public Licence.]
57 */ 57 */
58 #include <stdio.h> 58 #include <stdio.h>
59 #include <stdlib.h> 59 #include <stdlib.h>
60 #include <string.h> 60 #include <string.h>
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;
70 unsigned char pad[HMAC_MAX_MD_CBLOCK]; 68 unsigned char pad[HMAC_MAX_MD_CBLOCK];
71 69
72 if (md != NULL) 70 if (md != NULL)
73 { 71 {
74 reset=1; 72 reset=1;
75 ctx->md=md; 73 ctx->md=md;
76 } 74 }
77 else 75 else
78 md=ctx->md; 76 md=ctx->md;
79 77
80 if (key != NULL) 78 if (key != NULL)
81 { 79 {
82 reset=1; 80 reset=1;
83 j=EVP_MD_block_size(md); 81 j=EVP_MD_block_size(md);
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 {
94 OPENSSL_assert(len>=0 && len<=(int)sizeof(ctx->key)); 95 OPENSSL_assert(len>=0 && len<=(int)sizeof(ctx->key));
95 memcpy(ctx->key,key,len); 96 memcpy(ctx->key,key,len);
96 ctx->key_length=len; 97 ctx->key_length=len;
97 } 98 }
98 if(ctx->key_length != HMAC_MAX_MD_CBLOCK) 99 if(ctx->key_length != HMAC_MAX_MD_CBLOCK)
99 memset(&ctx->key[ctx->key_length], 0, 100 memset(&ctx->key[ctx->key_length], 0,
100 HMAC_MAX_MD_CBLOCK - ctx->key_length); 101 HMAC_MAX_MD_CBLOCK - ctx->key_length);
101 } 102 }
102 103
103 if (reset) 104 if (reset)
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;
134 unsigned int i; 141 unsigned int i;
135 unsigned char buf[EVP_MAX_MD_SIZE]; 142 unsigned char buf[EVP_MAX_MD_SIZE];
136 143
137 » j=EVP_MD_block_size(ctx->md); 144 » if (!EVP_DigestFinal_ex(&ctx->md_ctx,buf,&i))
138 145 » » goto err;
139 » EVP_DigestFinal_ex(&ctx->md_ctx,buf,&i); 146 » if (!EVP_MD_CTX_copy_ex(&ctx->md_ctx,&ctx->o_ctx))
140 » EVP_MD_CTX_copy_ex(&ctx->md_ctx,&ctx->o_ctx); 147 » » goto err;
141 » EVP_DigestUpdate(&ctx->md_ctx,buf,i); 148 » if (!EVP_DigestUpdate(&ctx->md_ctx,buf,i))
142 » EVP_DigestFinal_ex(&ctx->md_ctx,md,len); 149 » » goto err;
150 » if (!EVP_DigestFinal_ex(&ctx->md_ctx,md,len))
151 » » goto err;
152 » return 1;
153 » err:
154 » return 0;
143 } 155 }
144 156
145 void HMAC_CTX_init(HMAC_CTX *ctx) 157 void HMAC_CTX_init(HMAC_CTX *ctx)
146 { 158 {
147 EVP_MD_CTX_init(&ctx->i_ctx); 159 EVP_MD_CTX_init(&ctx->i_ctx);
148 EVP_MD_CTX_init(&ctx->o_ctx); 160 EVP_MD_CTX_init(&ctx->o_ctx);
149 EVP_MD_CTX_init(&ctx->md_ctx); 161 EVP_MD_CTX_init(&ctx->md_ctx);
150 } 162 }
151 163
164 int HMAC_CTX_copy(HMAC_CTX *dctx, HMAC_CTX *sctx)
165 {
166 if (!EVP_MD_CTX_copy(&dctx->i_ctx, &sctx->i_ctx))
167 goto err;
168 if (!EVP_MD_CTX_copy(&dctx->o_ctx, &sctx->o_ctx))
169 goto err;
170 if (!EVP_MD_CTX_copy(&dctx->md_ctx, &sctx->md_ctx))
171 goto err;
172 memcpy(dctx->key, sctx->key, HMAC_MAX_MD_CBLOCK);
173 dctx->key_length = sctx->key_length;
174 dctx->md = sctx->md;
175 return 1;
176 err:
177 return 0;
178 }
179
152 void HMAC_CTX_cleanup(HMAC_CTX *ctx) 180 void HMAC_CTX_cleanup(HMAC_CTX *ctx)
153 { 181 {
154 EVP_MD_CTX_cleanup(&ctx->i_ctx); 182 EVP_MD_CTX_cleanup(&ctx->i_ctx);
155 EVP_MD_CTX_cleanup(&ctx->o_ctx); 183 EVP_MD_CTX_cleanup(&ctx->o_ctx);
156 EVP_MD_CTX_cleanup(&ctx->md_ctx); 184 EVP_MD_CTX_cleanup(&ctx->md_ctx);
157 memset(ctx,0,sizeof *ctx); 185 memset(ctx,0,sizeof *ctx);
158 } 186 }
159 187
160 unsigned char *HMAC(const EVP_MD *evp_md, const void *key, int key_len, 188 unsigned char *HMAC(const EVP_MD *evp_md, const void *key, int key_len,
161 const unsigned char *d, size_t n, unsigned char *md, 189 const unsigned char *d, size_t n, unsigned char *md,
162 unsigned int *md_len) 190 unsigned int *md_len)
163 { 191 {
164 HMAC_CTX c; 192 HMAC_CTX c;
165 static unsigned char m[EVP_MAX_MD_SIZE]; 193 static unsigned char m[EVP_MAX_MD_SIZE];
166 194
167 if (md == NULL) md=m; 195 if (md == NULL) md=m;
168 HMAC_CTX_init(&c); 196 HMAC_CTX_init(&c);
169 » HMAC_Init(&c,key,key_len,evp_md); 197 » if (!HMAC_Init(&c,key,key_len,evp_md))
170 » HMAC_Update(&c,d,n); 198 » » goto err;
171 » HMAC_Final(&c,md,md_len); 199 » if (!HMAC_Update(&c,d,n))
200 » » goto err;
201 » if (!HMAC_Final(&c,md,md_len))
202 » » goto err;
172 HMAC_CTX_cleanup(&c); 203 HMAC_CTX_cleanup(&c);
173 » return(md); 204 » return md;
205 » err:
206 » return NULL;
174 } 207 }
175 208
176 void HMAC_CTX_set_flags(HMAC_CTX *ctx, unsigned long flags) 209 void HMAC_CTX_set_flags(HMAC_CTX *ctx, unsigned long flags)
177 { 210 {
178 EVP_MD_CTX_set_flags(&ctx->i_ctx, flags); 211 EVP_MD_CTX_set_flags(&ctx->i_ctx, flags);
179 EVP_MD_CTX_set_flags(&ctx->o_ctx, flags); 212 EVP_MD_CTX_set_flags(&ctx->o_ctx, flags);
180 EVP_MD_CTX_set_flags(&ctx->md_ctx, flags); 213 EVP_MD_CTX_set_flags(&ctx->md_ctx, flags);
181 } 214 }
182
183 #endif
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