gost_crypt.c (256281) | gost_crypt.c (280304) |
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1/********************************************************************** 2 * gost_crypt.c * 3 * Copyright (c) 2005-2006 Cryptocom LTD * 4 * This file is distributed under the same license as OpenSSL * 5 * * 6 * OpenSSL interface to GOST 28147-89 cipher functions * 7 * Requires OpenSSL 0.9.9 for compilation * 8 **********************************************************************/ --- 5 unchanged lines hidden (view full) --- 14 15#if !defined(CCGOST_DEBUG) && !defined(DEBUG) 16# ifndef NDEBUG 17# define NDEBUG 18# endif 19#endif 20#include <assert.h> 21 | 1/********************************************************************** 2 * gost_crypt.c * 3 * Copyright (c) 2005-2006 Cryptocom LTD * 4 * This file is distributed under the same license as OpenSSL * 5 * * 6 * OpenSSL interface to GOST 28147-89 cipher functions * 7 * Requires OpenSSL 0.9.9 for compilation * 8 **********************************************************************/ --- 5 unchanged lines hidden (view full) --- 14 15#if !defined(CCGOST_DEBUG) && !defined(DEBUG) 16# ifndef NDEBUG 17# define NDEBUG 18# endif 19#endif 20#include <assert.h> 21 |
22static int gost_cipher_init(EVP_CIPHER_CTX *ctx, const unsigned char *key, 23 const unsigned char *iv, int enc); 24static int gost_cipher_init_cpa(EVP_CIPHER_CTX *ctx, const unsigned char *key, 25 const unsigned char *iv, int enc); 26/* Handles block of data in CFB mode */ 27static int gost_cipher_do_cfb(EVP_CIPHER_CTX *ctx, unsigned char *out, 28 const unsigned char *in, size_t inl); 29/* Handles block of data in CNT mode */ 30static int gost_cipher_do_cnt(EVP_CIPHER_CTX *ctx, unsigned char *out, 31 const unsigned char *in, size_t inl); 32/* Cleanup function */ | 22static int gost_cipher_init(EVP_CIPHER_CTX *ctx, const unsigned char *key, 23 const unsigned char *iv, int enc); 24static int gost_cipher_init_cpa(EVP_CIPHER_CTX *ctx, const unsigned char *key, 25 const unsigned char *iv, int enc); 26/* Handles block of data in CFB mode */ 27static int gost_cipher_do_cfb(EVP_CIPHER_CTX *ctx, unsigned char *out, 28 const unsigned char *in, size_t inl); 29/* Handles block of data in CNT mode */ 30static int gost_cipher_do_cnt(EVP_CIPHER_CTX *ctx, unsigned char *out, 31 const unsigned char *in, size_t inl); 32/* Cleanup function */ |
33static int gost_cipher_cleanup(EVP_CIPHER_CTX *); 34/* set/get cipher parameters */ | 33static int gost_cipher_cleanup(EVP_CIPHER_CTX *); 34/* set/get cipher parameters */ |
35static int gost89_set_asn1_parameters(EVP_CIPHER_CTX *ctx,ASN1_TYPE *params); 36static int gost89_get_asn1_parameters(EVP_CIPHER_CTX *ctx,ASN1_TYPE *params); | 35static int gost89_set_asn1_parameters(EVP_CIPHER_CTX *ctx, ASN1_TYPE *params); 36static int gost89_get_asn1_parameters(EVP_CIPHER_CTX *ctx, ASN1_TYPE *params); |
37/* Control function */ | 37/* Control function */ |
38static int gost_cipher_ctl(EVP_CIPHER_CTX *ctx,int type,int arg,void *ptr); | 38static int gost_cipher_ctl(EVP_CIPHER_CTX *ctx, int type, int arg, void *ptr); |
39 | 39 |
40EVP_CIPHER cipher_gost = 41 { 42 NID_id_Gost28147_89, 43 1,/*block_size*/ 44 32,/*key_size*/ 45 8,/*iv_len */ 46 EVP_CIPH_CFB_MODE| EVP_CIPH_NO_PADDING | 47 EVP_CIPH_CUSTOM_IV| EVP_CIPH_RAND_KEY | EVP_CIPH_ALWAYS_CALL_INIT, 48 gost_cipher_init, 49 gost_cipher_do_cfb, 50 gost_cipher_cleanup, 51 sizeof(struct ossl_gost_cipher_ctx),/* ctx_size */ 52 gost89_set_asn1_parameters, 53 gost89_get_asn1_parameters, 54 gost_cipher_ctl, 55 NULL, 56 }; | 40EVP_CIPHER cipher_gost = { 41 NID_id_Gost28147_89, 42 1, /* block_size */ 43 32, /* key_size */ 44 8, /* iv_len */ 45 EVP_CIPH_CFB_MODE | EVP_CIPH_NO_PADDING | 46 EVP_CIPH_CUSTOM_IV | EVP_CIPH_RAND_KEY | EVP_CIPH_ALWAYS_CALL_INIT, 47 gost_cipher_init, 48 gost_cipher_do_cfb, 49 gost_cipher_cleanup, 50 sizeof(struct ossl_gost_cipher_ctx), /* ctx_size */ 51 gost89_set_asn1_parameters, 52 gost89_get_asn1_parameters, 53 gost_cipher_ctl, 54 NULL, 55}; |
57 | 56 |
58EVP_CIPHER cipher_gost_cpacnt = 59 { 60 NID_gost89_cnt, 61 1,/*block_size*/ 62 32,/*key_size*/ 63 8,/*iv_len */ 64 EVP_CIPH_OFB_MODE| EVP_CIPH_NO_PADDING | 65 EVP_CIPH_CUSTOM_IV| EVP_CIPH_RAND_KEY | EVP_CIPH_ALWAYS_CALL_INIT, 66 gost_cipher_init_cpa, 67 gost_cipher_do_cnt, 68 gost_cipher_cleanup, 69 sizeof(struct ossl_gost_cipher_ctx), /* ctx_size */ 70 gost89_set_asn1_parameters, 71 gost89_get_asn1_parameters, 72 gost_cipher_ctl, 73 NULL, 74 }; | 57EVP_CIPHER cipher_gost_cpacnt = { 58 NID_gost89_cnt, 59 1, /* block_size */ 60 32, /* key_size */ 61 8, /* iv_len */ 62 EVP_CIPH_OFB_MODE | EVP_CIPH_NO_PADDING | 63 EVP_CIPH_CUSTOM_IV | EVP_CIPH_RAND_KEY | EVP_CIPH_ALWAYS_CALL_INIT, 64 gost_cipher_init_cpa, 65 gost_cipher_do_cnt, 66 gost_cipher_cleanup, 67 sizeof(struct ossl_gost_cipher_ctx), /* ctx_size */ 68 gost89_set_asn1_parameters, 69 gost89_get_asn1_parameters, 70 gost_cipher_ctl, 71 NULL, 72}; |
75 76/* Implementation of GOST 28147-89 in MAC (imitovstavka) mode */ 77/* Init functions which set specific parameters */ 78static int gost_imit_init_cpa(EVP_MD_CTX *ctx); 79/* process block of data */ 80static int gost_imit_update(EVP_MD_CTX *ctx, const void *data, size_t count); 81/* Return computed value */ | 73 74/* Implementation of GOST 28147-89 in MAC (imitovstavka) mode */ 75/* Init functions which set specific parameters */ 76static int gost_imit_init_cpa(EVP_MD_CTX *ctx); 77/* process block of data */ 78static int gost_imit_update(EVP_MD_CTX *ctx, const void *data, size_t count); 79/* Return computed value */ |
82static int gost_imit_final(EVP_MD_CTX *ctx,unsigned char *md); | 80static int gost_imit_final(EVP_MD_CTX *ctx, unsigned char *md); |
83/* Copies context */ | 81/* Copies context */ |
84static int gost_imit_copy(EVP_MD_CTX *to,const EVP_MD_CTX *from); | 82static int gost_imit_copy(EVP_MD_CTX *to, const EVP_MD_CTX *from); |
85static int gost_imit_cleanup(EVP_MD_CTX *ctx); 86/* Control function, knows how to set MAC key.*/ | 83static int gost_imit_cleanup(EVP_MD_CTX *ctx); 84/* Control function, knows how to set MAC key.*/ |
87static int gost_imit_ctrl(EVP_MD_CTX *ctx,int type, int arg, void *ptr); | 85static int gost_imit_ctrl(EVP_MD_CTX *ctx, int type, int arg, void *ptr); |
88 | 86 |
89EVP_MD imit_gost_cpa = 90 { 91 NID_id_Gost28147_89_MAC, 92 NID_undef, 93 4, 94 0, 95 gost_imit_init_cpa, 96 gost_imit_update, 97 gost_imit_final, 98 gost_imit_copy, 99 gost_imit_cleanup, 100 NULL, 101 NULL, 102 {0,0,0,0,0}, 103 8, 104 sizeof(struct ossl_gost_imit_ctx), 105 gost_imit_ctrl 106 }; | 87EVP_MD imit_gost_cpa = { 88 NID_id_Gost28147_89_MAC, 89 NID_undef, 90 4, 91 0, 92 gost_imit_init_cpa, 93 gost_imit_update, 94 gost_imit_final, 95 gost_imit_copy, 96 gost_imit_cleanup, 97 NULL, 98 NULL, 99 {0, 0, 0, 0, 0}, 100 8, 101 sizeof(struct ossl_gost_imit_ctx), 102 gost_imit_ctrl 103}; |
107 | 104 |
108/* | 105/* |
109 * Correspondence between gost parameter OIDs and substitution blocks 110 * NID field is filed by register_gost_NID function in engine.c 111 * upon engine initialization 112 */ 113 | 106 * Correspondence between gost parameter OIDs and substitution blocks 107 * NID field is filed by register_gost_NID function in engine.c 108 * upon engine initialization 109 */ 110 |
114struct gost_cipher_info gost_cipher_list[]= 115 { 116/* NID */ /* Subst block */ /* Key meshing*/ 117/*{NID_id_GostR3411_94_CryptoProParamSet,&GostR3411_94_CryptoProParamSet,0},*/ 118 {NID_id_Gost28147_89_cc,&GostR3411_94_CryptoProParamSet,0}, 119 {NID_id_Gost28147_89_CryptoPro_A_ParamSet,&Gost28147_CryptoProParamSetA,1}, 120 {NID_id_Gost28147_89_CryptoPro_B_ParamSet,&Gost28147_CryptoProParamSetB,1}, 121 {NID_id_Gost28147_89_CryptoPro_C_ParamSet,&Gost28147_CryptoProParamSetC,1}, 122 {NID_id_Gost28147_89_CryptoPro_D_ParamSet,&Gost28147_CryptoProParamSetD,1}, 123 {NID_id_Gost28147_89_TestParamSet,&Gost28147_TestParamSet,1}, 124 {NID_undef,NULL,0} 125 }; | 111struct gost_cipher_info gost_cipher_list[] = { 112 /*- NID *//* 113 * Subst block 114 *//* 115 * Key meshing 116 */ 117 /* 118 * {NID_id_GostR3411_94_CryptoProParamSet,&GostR3411_94_CryptoProParamSet,0}, 119 */ 120 {NID_id_Gost28147_89_cc, &GostR3411_94_CryptoProParamSet, 0}, 121 {NID_id_Gost28147_89_CryptoPro_A_ParamSet, &Gost28147_CryptoProParamSetA, 122 1}, 123 {NID_id_Gost28147_89_CryptoPro_B_ParamSet, &Gost28147_CryptoProParamSetB, 124 1}, 125 {NID_id_Gost28147_89_CryptoPro_C_ParamSet, &Gost28147_CryptoProParamSetC, 126 1}, 127 {NID_id_Gost28147_89_CryptoPro_D_ParamSet, &Gost28147_CryptoProParamSetD, 128 1}, 129 {NID_id_Gost28147_89_TestParamSet, &Gost28147_TestParamSet, 1}, 130 {NID_undef, NULL, 0} 131}; |
126 | 132 |
127/* get encryption parameters from crypto network settings 128 FIXME For now we use environment var CRYPT_PARAMS as place to 129 store these settings. Actually, it is better to use engine control command, read from configuration file to set them */ | 133/* 134 * get encryption parameters from crypto network settings FIXME For now we 135 * use environment var CRYPT_PARAMS as place to store these settings. 136 * Actually, it is better to use engine control command, read from 137 * configuration file to set them 138 */ |
130const struct gost_cipher_info *get_encryption_params(ASN1_OBJECT *obj) | 139const struct gost_cipher_info *get_encryption_params(ASN1_OBJECT *obj) |
131 { 132 int nid; 133 struct gost_cipher_info *param; 134 if (!obj) 135 { 136 const char * params = get_gost_engine_param(GOST_PARAM_CRYPT_PARAMS); 137 if (!params || !strlen(params)) 138 return &gost_cipher_list[1]; | 140{ 141 int nid; 142 struct gost_cipher_info *param; 143 if (!obj) { 144 const char *params = get_gost_engine_param(GOST_PARAM_CRYPT_PARAMS); 145 if (!params || !strlen(params)) 146 return &gost_cipher_list[1]; |
139 | 147 |
140 nid = OBJ_txt2nid(params); 141 if (nid == NID_undef) 142 { 143 GOSTerr(GOST_F_GET_ENCRYPTION_PARAMS, 144 GOST_R_INVALID_CIPHER_PARAM_OID); 145 return NULL; 146 } 147 } 148 else 149 { 150 nid= OBJ_obj2nid(obj); 151 } 152 for (param=gost_cipher_list;param->sblock!=NULL && param->nid!=nid; 153 param++); 154 if (!param->sblock) 155 { 156 GOSTerr(GOST_F_GET_ENCRYPTION_PARAMS,GOST_R_INVALID_CIPHER_PARAMS); 157 return NULL; 158 } 159 return param; 160 } | 148 nid = OBJ_txt2nid(params); 149 if (nid == NID_undef) { 150 GOSTerr(GOST_F_GET_ENCRYPTION_PARAMS, 151 GOST_R_INVALID_CIPHER_PARAM_OID); 152 return NULL; 153 } 154 } else { 155 nid = OBJ_obj2nid(obj); 156 } 157 for (param = gost_cipher_list; param->sblock != NULL && param->nid != nid; 158 param++) ; 159 if (!param->sblock) { 160 GOSTerr(GOST_F_GET_ENCRYPTION_PARAMS, GOST_R_INVALID_CIPHER_PARAMS); 161 return NULL; 162 } 163 return param; 164} |
161 162/* Sets cipher param from paramset NID. */ | 165 166/* Sets cipher param from paramset NID. */ |
163static int gost_cipher_set_param(struct ossl_gost_cipher_ctx *c,int nid) 164 { 165 const struct gost_cipher_info *param; 166 param=get_encryption_params((nid==NID_undef?NULL:OBJ_nid2obj(nid))); 167 if (!param) return 0; 168 169 c->paramNID = param->nid; 170 c->key_meshing=param->key_meshing; 171 c->count=0; 172 gost_init(&(c->cctx), param->sblock); 173 return 1; 174 } | 167static int gost_cipher_set_param(struct ossl_gost_cipher_ctx *c, int nid) 168{ 169 const struct gost_cipher_info *param; 170 param = 171 get_encryption_params((nid == NID_undef ? NULL : OBJ_nid2obj(nid))); 172 if (!param) 173 return 0; |
175 | 174 |
175 c->paramNID = param->nid; 176 c->key_meshing = param->key_meshing; 177 c->count = 0; 178 gost_init(&(c->cctx), param->sblock); 179 return 1; 180} 181 |
|
176/* Initializes EVP_CIPHER_CTX by paramset NID */ | 182/* Initializes EVP_CIPHER_CTX by paramset NID */ |
177static int gost_cipher_init_param(EVP_CIPHER_CTX *ctx, const unsigned char *key, 178 const unsigned char *iv, int enc, int paramNID,int mode) 179 { 180 struct ossl_gost_cipher_ctx *c=ctx->cipher_data; 181 if (ctx->app_data == NULL) 182 { 183 if (!gost_cipher_set_param(c,paramNID)) return 0; 184 ctx->app_data = ctx->cipher_data; 185 } 186 if (key) gost_key(&(c->cctx),key); 187 if(iv) memcpy(ctx->oiv, iv, EVP_CIPHER_CTX_iv_length(ctx)); 188 memcpy(ctx->iv, ctx->oiv, EVP_CIPHER_CTX_iv_length(ctx)); 189 return 1; 190 } | 183static int gost_cipher_init_param(EVP_CIPHER_CTX *ctx, 184 const unsigned char *key, 185 const unsigned char *iv, int enc, 186 int paramNID, int mode) 187{ 188 struct ossl_gost_cipher_ctx *c = ctx->cipher_data; 189 if (ctx->app_data == NULL) { 190 if (!gost_cipher_set_param(c, paramNID)) 191 return 0; 192 ctx->app_data = ctx->cipher_data; 193 } 194 if (key) 195 gost_key(&(c->cctx), key); 196 if (iv) 197 memcpy(ctx->oiv, iv, EVP_CIPHER_CTX_iv_length(ctx)); 198 memcpy(ctx->iv, ctx->oiv, EVP_CIPHER_CTX_iv_length(ctx)); 199 return 1; 200} |
191 192static int gost_cipher_init_cpa(EVP_CIPHER_CTX *ctx, const unsigned char *key, | 201 202static int gost_cipher_init_cpa(EVP_CIPHER_CTX *ctx, const unsigned char *key, |
193 const unsigned char *iv, int enc) 194 { 195 struct ossl_gost_cipher_ctx *c=ctx->cipher_data; 196 gost_init(&(c->cctx),&Gost28147_CryptoProParamSetA); 197 c->key_meshing=1; 198 c->count=0; 199 if(key) gost_key(&(c->cctx),key); 200 if(iv) memcpy(ctx->oiv, iv, EVP_CIPHER_CTX_iv_length(ctx)); 201 memcpy(ctx->iv, ctx->oiv, EVP_CIPHER_CTX_iv_length(ctx)); 202 return 1; 203 } | 203 const unsigned char *iv, int enc) 204{ 205 struct ossl_gost_cipher_ctx *c = ctx->cipher_data; 206 gost_init(&(c->cctx), &Gost28147_CryptoProParamSetA); 207 c->key_meshing = 1; 208 c->count = 0; 209 if (key) 210 gost_key(&(c->cctx), key); 211 if (iv) 212 memcpy(ctx->oiv, iv, EVP_CIPHER_CTX_iv_length(ctx)); 213 memcpy(ctx->iv, ctx->oiv, EVP_CIPHER_CTX_iv_length(ctx)); 214 return 1; 215} |
204 205/* Initializes EVP_CIPHER_CTX with default values */ 206int gost_cipher_init(EVP_CIPHER_CTX *ctx, const unsigned char *key, | 216 217/* Initializes EVP_CIPHER_CTX with default values */ 218int gost_cipher_init(EVP_CIPHER_CTX *ctx, const unsigned char *key, |
207 const unsigned char *iv, int enc) 208 { 209 return gost_cipher_init_param(ctx,key,iv,enc,NID_undef,EVP_CIPH_CFB_MODE); 210 } 211/* Wrapper around gostcrypt function from gost89.c which perform 212 * key meshing when nesseccary | 219 const unsigned char *iv, int enc) 220{ 221 return gost_cipher_init_param(ctx, key, iv, enc, NID_undef, 222 EVP_CIPH_CFB_MODE); 223} 224 225/* 226 * Wrapper around gostcrypt function from gost89.c which perform key meshing 227 * when nesseccary |
213 */ | 228 */ |
214static void gost_crypt_mesh (void *ctx,unsigned char *iv,unsigned char *buf) 215 { 216 struct ossl_gost_cipher_ctx *c = ctx; 217 assert(c->count%8 == 0 && c->count <= 1024); 218 if (c->key_meshing && c->count==1024) 219 { 220 cryptopro_key_meshing(&(c->cctx),iv); 221 } 222 gostcrypt(&(c->cctx),iv,buf); 223 c->count = c->count%1024 + 8; 224 } | 229static void gost_crypt_mesh(void *ctx, unsigned char *iv, unsigned char *buf) 230{ 231 struct ossl_gost_cipher_ctx *c = ctx; 232 assert(c->count % 8 == 0 && c->count <= 1024); 233 if (c->key_meshing && c->count == 1024) { 234 cryptopro_key_meshing(&(c->cctx), iv); 235 } 236 gostcrypt(&(c->cctx), iv, buf); 237 c->count = c->count % 1024 + 8; 238} |
225 | 239 |
226static void gost_cnt_next (void *ctx, unsigned char *iv, unsigned char *buf) 227 { 228 struct ossl_gost_cipher_ctx *c = ctx; 229 word32 g,go; 230 unsigned char buf1[8]; 231 assert(c->count%8 == 0 && c->count <= 1024); 232 if (c->key_meshing && c->count==1024) 233 { 234 cryptopro_key_meshing(&(c->cctx),iv); 235 } 236 if (c->count==0) 237 { 238 gostcrypt(&(c->cctx),iv,buf1); 239 } 240 else 241 { 242 memcpy(buf1,iv,8); 243 } 244 g = buf1[0]|(buf1[1]<<8)|(buf1[2]<<16)|(buf1[3]<<24); 245 g += 0x01010101; 246 buf1[0]=(unsigned char)(g&0xff); 247 buf1[1]=(unsigned char)((g>>8)&0xff); 248 buf1[2]=(unsigned char)((g>>16)&0xff); 249 buf1[3]=(unsigned char)((g>>24)&0xff); 250 g = buf1[4]|(buf1[5]<<8)|(buf1[6]<<16)|(buf1[7]<<24); 251 go = g; 252 g += 0x01010104; 253 if (go > g) /* overflow*/ 254 g++; 255 buf1[4]=(unsigned char)(g&0xff); 256 buf1[5]=(unsigned char)((g>>8)&0xff); 257 buf1[6]=(unsigned char)((g>>16)&0xff); 258 buf1[7]=(unsigned char)((g>>24)&0xff); 259 memcpy(iv,buf1,8); 260 gostcrypt(&(c->cctx),buf1,buf); 261 c->count = c->count%1024 + 8; 262 } | 240static void gost_cnt_next(void *ctx, unsigned char *iv, unsigned char *buf) 241{ 242 struct ossl_gost_cipher_ctx *c = ctx; 243 word32 g, go; 244 unsigned char buf1[8]; 245 assert(c->count % 8 == 0 && c->count <= 1024); 246 if (c->key_meshing && c->count == 1024) { 247 cryptopro_key_meshing(&(c->cctx), iv); 248 } 249 if (c->count == 0) { 250 gostcrypt(&(c->cctx), iv, buf1); 251 } else { 252 memcpy(buf1, iv, 8); 253 } 254 g = buf1[0] | (buf1[1] << 8) | (buf1[2] << 16) | (buf1[3] << 24); 255 g += 0x01010101; 256 buf1[0] = (unsigned char)(g & 0xff); 257 buf1[1] = (unsigned char)((g >> 8) & 0xff); 258 buf1[2] = (unsigned char)((g >> 16) & 0xff); 259 buf1[3] = (unsigned char)((g >> 24) & 0xff); 260 g = buf1[4] | (buf1[5] << 8) | (buf1[6] << 16) | (buf1[7] << 24); 261 go = g; 262 g += 0x01010104; 263 if (go > g) /* overflow */ 264 g++; 265 buf1[4] = (unsigned char)(g & 0xff); 266 buf1[5] = (unsigned char)((g >> 8) & 0xff); 267 buf1[6] = (unsigned char)((g >> 16) & 0xff); 268 buf1[7] = (unsigned char)((g >> 24) & 0xff); 269 memcpy(iv, buf1, 8); 270 gostcrypt(&(c->cctx), buf1, buf); 271 c->count = c->count % 1024 + 8; 272} |
263 264/* GOST encryption in CFB mode */ | 273 274/* GOST encryption in CFB mode */ |
265int gost_cipher_do_cfb(EVP_CIPHER_CTX *ctx, unsigned char *out, 266 const unsigned char *in, size_t inl) 267 { 268 const unsigned char *in_ptr=in; 269 unsigned char *out_ptr=out; 270 size_t i=0; 271 size_t j=0; | 275int gost_cipher_do_cfb(EVP_CIPHER_CTX *ctx, unsigned char *out, 276 const unsigned char *in, size_t inl) 277{ 278 const unsigned char *in_ptr = in; 279 unsigned char *out_ptr = out; 280 size_t i = 0; 281 size_t j = 0; |
272/* process partial block if any */ | 282/* process partial block if any */ |
273 if (ctx->num) 274 { 275 for (j=ctx->num,i=0;j<8 && i<inl;j++,i++,in_ptr++,out_ptr++) 276 { 277 if (!ctx->encrypt) ctx->buf[j+8]=*in_ptr; 278 *out_ptr=ctx->buf[j]^(*in_ptr); 279 if (ctx->encrypt) ctx->buf[j+8]=*out_ptr; 280 } 281 if (j==8) 282 { 283 memcpy(ctx->iv,ctx->buf+8,8); 284 ctx->num=0; 285 } 286 else 287 { 288 ctx->num=j; 289 return 1; 290 } 291 } | 283 if (ctx->num) { 284 for (j = ctx->num, i = 0; j < 8 && i < inl; 285 j++, i++, in_ptr++, out_ptr++) { 286 if (!ctx->encrypt) 287 ctx->buf[j + 8] = *in_ptr; 288 *out_ptr = ctx->buf[j] ^ (*in_ptr); 289 if (ctx->encrypt) 290 ctx->buf[j + 8] = *out_ptr; 291 } 292 if (j == 8) { 293 memcpy(ctx->iv, ctx->buf + 8, 8); 294 ctx->num = 0; 295 } else { 296 ctx->num = j; 297 return 1; 298 } 299 } |
292 | 300 |
293 for (;i+8<inl;i+=8,in_ptr+=8,out_ptr+=8) 294 { 295 /*block cipher current iv */ 296 gost_crypt_mesh(ctx->cipher_data,ctx->iv,ctx->buf); 297 /*xor next block of input text with it and output it*/ 298 /*output this block */ 299 if (!ctx->encrypt) memcpy(ctx->iv,in_ptr,8); 300 for (j=0;j<8;j++) 301 { 302 out_ptr[j]=ctx->buf[j]^in_ptr[j]; 303 } 304 /* Encrypt */ 305 /* Next iv is next block of cipher text*/ 306 if (ctx->encrypt) memcpy(ctx->iv,out_ptr,8); 307 } | 301 for (; i + 8 < inl; i += 8, in_ptr += 8, out_ptr += 8) { 302 /* 303 * block cipher current iv 304 */ 305 gost_crypt_mesh(ctx->cipher_data, ctx->iv, ctx->buf); 306 /* 307 * xor next block of input text with it and output it 308 */ 309 /* 310 * output this block 311 */ 312 if (!ctx->encrypt) 313 memcpy(ctx->iv, in_ptr, 8); 314 for (j = 0; j < 8; j++) { 315 out_ptr[j] = ctx->buf[j] ^ in_ptr[j]; 316 } 317 /* Encrypt */ 318 /* Next iv is next block of cipher text */ 319 if (ctx->encrypt) 320 memcpy(ctx->iv, out_ptr, 8); 321 } |
308/* Process rest of buffer */ | 322/* Process rest of buffer */ |
309 if (i<inl) 310 { 311 gost_crypt_mesh(ctx->cipher_data,ctx->iv,ctx->buf); 312 if (!ctx->encrypt) memcpy(ctx->buf+8,in_ptr,inl-i); 313 for (j=0;i<inl;j++,i++) 314 { 315 out_ptr[j]=ctx->buf[j]^in_ptr[j]; 316 } 317 ctx->num = j; 318 if (ctx->encrypt) memcpy(ctx->buf+8,out_ptr,j); 319 } 320 else 321 { 322 ctx->num = 0; 323 } 324 return 1; 325 } | 323 if (i < inl) { 324 gost_crypt_mesh(ctx->cipher_data, ctx->iv, ctx->buf); 325 if (!ctx->encrypt) 326 memcpy(ctx->buf + 8, in_ptr, inl - i); 327 for (j = 0; i < inl; j++, i++) { 328 out_ptr[j] = ctx->buf[j] ^ in_ptr[j]; 329 } 330 ctx->num = j; 331 if (ctx->encrypt) 332 memcpy(ctx->buf + 8, out_ptr, j); 333 } else { 334 ctx->num = 0; 335 } 336 return 1; 337} |
326 327static int gost_cipher_do_cnt(EVP_CIPHER_CTX *ctx, unsigned char *out, | 338 339static int gost_cipher_do_cnt(EVP_CIPHER_CTX *ctx, unsigned char *out, |
328 const unsigned char *in, size_t inl) 329 { 330 const unsigned char *in_ptr=in; 331 unsigned char *out_ptr=out; 332 size_t i=0; 333 size_t j; | 340 const unsigned char *in, size_t inl) 341{ 342 const unsigned char *in_ptr = in; 343 unsigned char *out_ptr = out; 344 size_t i = 0; 345 size_t j; |
334/* process partial block if any */ | 346/* process partial block if any */ |
335 if (ctx->num) 336 { 337 for (j=ctx->num,i=0;j<8 && i<inl;j++,i++,in_ptr++,out_ptr++) 338 { 339 *out_ptr=ctx->buf[j]^(*in_ptr); 340 } 341 if (j==8) 342 { 343 ctx->num=0; 344 } 345 else 346 { 347 ctx->num=j; 348 return 1; 349 } 350 } | 347 if (ctx->num) { 348 for (j = ctx->num, i = 0; j < 8 && i < inl; 349 j++, i++, in_ptr++, out_ptr++) { 350 *out_ptr = ctx->buf[j] ^ (*in_ptr); 351 } 352 if (j == 8) { 353 ctx->num = 0; 354 } else { 355 ctx->num = j; 356 return 1; 357 } 358 } |
351 | 359 |
352 for (;i+8<inl;i+=8,in_ptr+=8,out_ptr+=8) 353 { 354 /*block cipher current iv */ 355 /* Encrypt */ 356 gost_cnt_next(ctx->cipher_data,ctx->iv,ctx->buf); 357 /*xor next block of input text with it and output it*/ 358 /*output this block */ 359 for (j=0;j<8;j++) 360 { 361 out_ptr[j]=ctx->buf[j]^in_ptr[j]; 362 } 363 } | 360 for (; i + 8 < inl; i += 8, in_ptr += 8, out_ptr += 8) { 361 /* 362 * block cipher current iv 363 */ 364 /* Encrypt */ 365 gost_cnt_next(ctx->cipher_data, ctx->iv, ctx->buf); 366 /* 367 * xor next block of input text with it and output it 368 */ 369 /* 370 * output this block 371 */ 372 for (j = 0; j < 8; j++) { 373 out_ptr[j] = ctx->buf[j] ^ in_ptr[j]; 374 } 375 } |
364/* Process rest of buffer */ | 376/* Process rest of buffer */ |
365 if (i<inl) 366 { 367 gost_cnt_next(ctx->cipher_data,ctx->iv,ctx->buf); 368 for (j=0;i<inl;j++,i++) 369 { 370 out_ptr[j]=ctx->buf[j]^in_ptr[j]; 371 } 372 ctx->num = j; 373 } 374 else 375 { 376 ctx->num = 0; 377 } 378 return 1; 379 } | 377 if (i < inl) { 378 gost_cnt_next(ctx->cipher_data, ctx->iv, ctx->buf); 379 for (j = 0; i < inl; j++, i++) { 380 out_ptr[j] = ctx->buf[j] ^ in_ptr[j]; 381 } 382 ctx->num = j; 383 } else { 384 ctx->num = 0; 385 } 386 return 1; 387} |
380 381/* Cleaning up of EVP_CIPHER_CTX */ | 388 389/* Cleaning up of EVP_CIPHER_CTX */ |
382int gost_cipher_cleanup(EVP_CIPHER_CTX *ctx) 383 { 384 gost_destroy(&((struct ossl_gost_cipher_ctx *)ctx->cipher_data)->cctx); 385 ctx->app_data = NULL; 386 return 1; 387 } | 390int gost_cipher_cleanup(EVP_CIPHER_CTX *ctx) 391{ 392 gost_destroy(&((struct ossl_gost_cipher_ctx *)ctx->cipher_data)->cctx); 393 ctx->app_data = NULL; 394 return 1; 395} |
388 389/* Control function for gost cipher */ | 396 397/* Control function for gost cipher */ |
390int gost_cipher_ctl(EVP_CIPHER_CTX *ctx,int type,int arg,void *ptr) 391 { 392 switch (type) 393 { 394 case EVP_CTRL_RAND_KEY: 395 { 396 if (RAND_bytes((unsigned char *)ptr,ctx->key_len)<=0) 397 { 398 GOSTerr(GOST_F_GOST_CIPHER_CTL,GOST_R_RANDOM_GENERATOR_ERROR); 399 return -1; 400 } 401 break; 402 } 403 case EVP_CTRL_PBE_PRF_NID: 404 if (ptr) { 405 *((int *)ptr)= NID_id_HMACGostR3411_94; 406 return 1; 407 } else { 408 return 0; 409 } 410 411 default: 412 GOSTerr(GOST_F_GOST_CIPHER_CTL,GOST_R_UNSUPPORTED_CIPHER_CTL_COMMAND); 413 return -1; 414 } 415 return 1; 416 } | 398int gost_cipher_ctl(EVP_CIPHER_CTX *ctx, int type, int arg, void *ptr) 399{ 400 switch (type) { 401 case EVP_CTRL_RAND_KEY: 402 { 403 if (RAND_bytes((unsigned char *)ptr, ctx->key_len) <= 0) { 404 GOSTerr(GOST_F_GOST_CIPHER_CTL, 405 GOST_R_RANDOM_GENERATOR_ERROR); 406 return -1; 407 } 408 break; 409 } 410 case EVP_CTRL_PBE_PRF_NID: 411 if (ptr) { 412 *((int *)ptr) = NID_id_HMACGostR3411_94; 413 return 1; 414 } else { 415 return 0; 416 } |
417 | 417 |
418 default: 419 GOSTerr(GOST_F_GOST_CIPHER_CTL, 420 GOST_R_UNSUPPORTED_CIPHER_CTL_COMMAND); 421 return -1; 422 } 423 return 1; 424} 425 |
|
418/* Set cipher parameters from ASN1 structure */ | 426/* Set cipher parameters from ASN1 structure */ |
419int gost89_set_asn1_parameters(EVP_CIPHER_CTX *ctx,ASN1_TYPE *params) 420 { 421 int len=0; 422 unsigned char *buf=NULL; 423 unsigned char *p=NULL; 424 struct ossl_gost_cipher_ctx *c = ctx->cipher_data; 425 GOST_CIPHER_PARAMS *gcp = GOST_CIPHER_PARAMS_new(); 426 ASN1_OCTET_STRING *os = NULL; 427 if (!gcp) 428 { 429 GOSTerr(GOST_F_GOST89_SET_ASN1_PARAMETERS, GOST_R_NO_MEMORY); 430 return 0; 431 } 432 if (!ASN1_OCTET_STRING_set(gcp->iv, ctx->iv, ctx->cipher->iv_len)) 433 { 434 GOST_CIPHER_PARAMS_free(gcp); 435 GOSTerr(GOST_F_GOST89_SET_ASN1_PARAMETERS, GOST_R_NO_MEMORY); 436 return 0; 437 } 438 ASN1_OBJECT_free(gcp->enc_param_set); 439 gcp->enc_param_set = OBJ_nid2obj(c->paramNID); | 427int gost89_set_asn1_parameters(EVP_CIPHER_CTX *ctx, ASN1_TYPE *params) 428{ 429 int len = 0; 430 unsigned char *buf = NULL; 431 unsigned char *p = NULL; 432 struct ossl_gost_cipher_ctx *c = ctx->cipher_data; 433 GOST_CIPHER_PARAMS *gcp = GOST_CIPHER_PARAMS_new(); 434 ASN1_OCTET_STRING *os = NULL; 435 if (!gcp) { 436 GOSTerr(GOST_F_GOST89_SET_ASN1_PARAMETERS, GOST_R_NO_MEMORY); 437 return 0; 438 } 439 if (!ASN1_OCTET_STRING_set(gcp->iv, ctx->iv, ctx->cipher->iv_len)) { 440 GOST_CIPHER_PARAMS_free(gcp); 441 GOSTerr(GOST_F_GOST89_SET_ASN1_PARAMETERS, GOST_R_NO_MEMORY); 442 return 0; 443 } 444 ASN1_OBJECT_free(gcp->enc_param_set); 445 gcp->enc_param_set = OBJ_nid2obj(c->paramNID); |
440 | 446 |
441 len = i2d_GOST_CIPHER_PARAMS(gcp, NULL); 442 p = buf = (unsigned char*)OPENSSL_malloc(len); 443 if (!buf) 444 { 445 GOST_CIPHER_PARAMS_free(gcp); 446 GOSTerr(GOST_F_GOST89_SET_ASN1_PARAMETERS, GOST_R_NO_MEMORY); 447 return 0; 448 } 449 i2d_GOST_CIPHER_PARAMS(gcp, &p); 450 GOST_CIPHER_PARAMS_free(gcp); | 447 len = i2d_GOST_CIPHER_PARAMS(gcp, NULL); 448 p = buf = (unsigned char *)OPENSSL_malloc(len); 449 if (!buf) { 450 GOST_CIPHER_PARAMS_free(gcp); 451 GOSTerr(GOST_F_GOST89_SET_ASN1_PARAMETERS, GOST_R_NO_MEMORY); 452 return 0; 453 } 454 i2d_GOST_CIPHER_PARAMS(gcp, &p); 455 GOST_CIPHER_PARAMS_free(gcp); |
451 | 456 |
452 os = ASN1_OCTET_STRING_new(); | 457 os = ASN1_OCTET_STRING_new(); |
453 | 458 |
454 if(!os || !ASN1_OCTET_STRING_set(os, buf, len)) 455 { 456 OPENSSL_free(buf); 457 GOSTerr(GOST_F_GOST89_SET_ASN1_PARAMETERS, GOST_R_NO_MEMORY); 458 return 0; 459 } 460 OPENSSL_free(buf); | 459 if (!os || !ASN1_OCTET_STRING_set(os, buf, len)) { 460 OPENSSL_free(buf); 461 GOSTerr(GOST_F_GOST89_SET_ASN1_PARAMETERS, GOST_R_NO_MEMORY); 462 return 0; 463 } 464 OPENSSL_free(buf); |
461 | 465 |
462 ASN1_TYPE_set(params, V_ASN1_SEQUENCE, os); 463 return 1; 464 } | 466 ASN1_TYPE_set(params, V_ASN1_SEQUENCE, os); 467 return 1; 468} |
465 466/* Store parameters into ASN1 structure */ | 469 470/* Store parameters into ASN1 structure */ |
467int gost89_get_asn1_parameters(EVP_CIPHER_CTX *ctx,ASN1_TYPE *params) 468 { 469 int ret = -1; 470 int len; 471 GOST_CIPHER_PARAMS *gcp = NULL; 472 unsigned char *p; 473 struct ossl_gost_cipher_ctx *c=ctx->cipher_data; 474 if (ASN1_TYPE_get(params) != V_ASN1_SEQUENCE) 475 { 476 return ret; 477 } | 471int gost89_get_asn1_parameters(EVP_CIPHER_CTX *ctx, ASN1_TYPE *params) 472{ 473 int ret = -1; 474 int len; 475 GOST_CIPHER_PARAMS *gcp = NULL; 476 unsigned char *p; 477 struct ossl_gost_cipher_ctx *c = ctx->cipher_data; 478 if (ASN1_TYPE_get(params) != V_ASN1_SEQUENCE) { 479 return ret; 480 } |
478 | 481 |
479 p = params->value.sequence->data; | 482 p = params->value.sequence->data; |
480 | 483 |
481 gcp = d2i_GOST_CIPHER_PARAMS(NULL, (const unsigned char **)&p, 482 params->value.sequence->length); | 484 gcp = d2i_GOST_CIPHER_PARAMS(NULL, (const unsigned char **)&p, 485 params->value.sequence->length); |
483 | 486 |
484 len = gcp->iv->length; 485 if (len != ctx->cipher->iv_len) 486 { 487 GOST_CIPHER_PARAMS_free(gcp); 488 GOSTerr(GOST_F_GOST89_GET_ASN1_PARAMETERS, 489 GOST_R_INVALID_IV_LENGTH); 490 return -1; 491 } 492 if (!gost_cipher_set_param(c,OBJ_obj2nid(gcp->enc_param_set))) 493 { 494 GOST_CIPHER_PARAMS_free(gcp); 495 return -1; 496 } 497 memcpy(ctx->oiv, gcp->iv->data, len); | 487 len = gcp->iv->length; 488 if (len != ctx->cipher->iv_len) { 489 GOST_CIPHER_PARAMS_free(gcp); 490 GOSTerr(GOST_F_GOST89_GET_ASN1_PARAMETERS, GOST_R_INVALID_IV_LENGTH); 491 return -1; 492 } 493 if (!gost_cipher_set_param(c, OBJ_obj2nid(gcp->enc_param_set))) { 494 GOST_CIPHER_PARAMS_free(gcp); 495 return -1; 496 } 497 memcpy(ctx->oiv, gcp->iv->data, len); |
498 | 498 |
499 GOST_CIPHER_PARAMS_free(gcp); | 499 GOST_CIPHER_PARAMS_free(gcp); |
500 | 500 |
501 return 1; 502 } | 501 return 1; 502} |
503 | 503 |
504 | |
505int gost_imit_init_cpa(EVP_MD_CTX *ctx) | 504int gost_imit_init_cpa(EVP_MD_CTX *ctx) |
506 { 507 struct ossl_gost_imit_ctx *c = ctx->md_data; 508 memset(c->buffer,0,sizeof(c->buffer)); 509 memset(c->partial_block,0,sizeof(c->partial_block)); 510 c->count = 0; 511 c->bytes_left=0; 512 c->key_meshing=1; 513 gost_init(&(c->cctx),&Gost28147_CryptoProParamSetA); 514 return 1; 515 } | 505{ 506 struct ossl_gost_imit_ctx *c = ctx->md_data; 507 memset(c->buffer, 0, sizeof(c->buffer)); 508 memset(c->partial_block, 0, sizeof(c->partial_block)); 509 c->count = 0; 510 c->bytes_left = 0; 511 c->key_meshing = 1; 512 gost_init(&(c->cctx), &Gost28147_CryptoProParamSetA); 513 return 1; 514} |
516 | 515 |
517static void mac_block_mesh(struct ossl_gost_imit_ctx *c,const unsigned char *data) 518 { 519 unsigned char buffer[8]; 520 /* We are using local buffer for iv because CryptoPro doesn't 521 * interpret internal state of MAC algorithm as iv during keymeshing 522 * (but does initialize internal state from iv in key transport 523 */ 524 assert(c->count%8 == 0 && c->count <= 1024); 525 if (c->key_meshing && c->count==1024) 526 { 527 cryptopro_key_meshing(&(c->cctx),buffer); 528 } 529 mac_block(&(c->cctx),c->buffer,data); 530 c->count = c->count%1024 + 8; 531 } | 516static void mac_block_mesh(struct ossl_gost_imit_ctx *c, 517 const unsigned char *data) 518{ 519 unsigned char buffer[8]; 520 /* 521 * We are using local buffer for iv because CryptoPro doesn't interpret 522 * internal state of MAC algorithm as iv during keymeshing (but does 523 * initialize internal state from iv in key transport 524 */ 525 assert(c->count % 8 == 0 && c->count <= 1024); 526 if (c->key_meshing && c->count == 1024) { 527 cryptopro_key_meshing(&(c->cctx), buffer); 528 } 529 mac_block(&(c->cctx), c->buffer, data); 530 c->count = c->count % 1024 + 8; 531} |
532 533int gost_imit_update(EVP_MD_CTX *ctx, const void *data, size_t count) | 532 533int gost_imit_update(EVP_MD_CTX *ctx, const void *data, size_t count) |
534 { 535 struct ossl_gost_imit_ctx *c = ctx->md_data; 536 const unsigned char *p = data; 537 size_t bytes = count,i; 538 if (!(c->key_set)) { 539 GOSTerr(GOST_F_GOST_IMIT_UPDATE, GOST_R_MAC_KEY_NOT_SET); 540 return 0; 541 } 542 if (c->bytes_left) 543 { 544 for (i=c->bytes_left;i<8&&bytes>0;bytes--,i++,p++) 545 { 546 c->partial_block[i]=*p; 547 } 548 if (i==8) 549 { 550 mac_block_mesh(c,c->partial_block); 551 } 552 else 553 { 554 c->bytes_left = i; 555 return 1; 556 } 557 } 558 while (bytes>8) 559 { 560 mac_block_mesh(c,p); 561 p+=8; 562 bytes-=8; 563 } 564 if (bytes>0) 565 { 566 memcpy(c->partial_block,p,bytes); 567 } 568 c->bytes_left=bytes; 569 return 1; 570 } | 534{ 535 struct ossl_gost_imit_ctx *c = ctx->md_data; 536 const unsigned char *p = data; 537 size_t bytes = count, i; 538 if (!(c->key_set)) { 539 GOSTerr(GOST_F_GOST_IMIT_UPDATE, GOST_R_MAC_KEY_NOT_SET); 540 return 0; 541 } 542 if (c->bytes_left) { 543 for (i = c->bytes_left; i < 8 && bytes > 0; bytes--, i++, p++) { 544 c->partial_block[i] = *p; 545 } 546 if (i == 8) { 547 mac_block_mesh(c, c->partial_block); 548 } else { 549 c->bytes_left = i; 550 return 1; 551 } 552 } 553 while (bytes > 8) { 554 mac_block_mesh(c, p); 555 p += 8; 556 bytes -= 8; 557 } 558 if (bytes > 0) { 559 memcpy(c->partial_block, p, bytes); 560 } 561 c->bytes_left = bytes; 562 return 1; 563} |
571 | 564 |
572int gost_imit_final(EVP_MD_CTX *ctx,unsigned char *md) 573 { 574 struct ossl_gost_imit_ctx *c = ctx->md_data; 575 if (!c->key_set) { 576 GOSTerr(GOST_F_GOST_IMIT_FINAL, GOST_R_MAC_KEY_NOT_SET); 577 return 0; 578 } 579 if (c->count==0 && c->bytes_left) 580 { 581 unsigned char buffer[8]; 582 memset(buffer, 0, 8); 583 gost_imit_update(ctx, buffer, 8); 584 } 585 if (c->bytes_left) 586 { 587 int i; 588 for (i=c->bytes_left;i<8;i++) 589 { 590 c->partial_block[i]=0; 591 } 592 mac_block_mesh(c,c->partial_block); 593 } 594 get_mac(c->buffer,32,md); 595 return 1; 596 } | 565int gost_imit_final(EVP_MD_CTX *ctx, unsigned char *md) 566{ 567 struct ossl_gost_imit_ctx *c = ctx->md_data; 568 if (!c->key_set) { 569 GOSTerr(GOST_F_GOST_IMIT_FINAL, GOST_R_MAC_KEY_NOT_SET); 570 return 0; 571 } 572 if (c->count == 0 && c->bytes_left) { 573 unsigned char buffer[8]; 574 memset(buffer, 0, 8); 575 gost_imit_update(ctx, buffer, 8); 576 } 577 if (c->bytes_left) { 578 int i; 579 for (i = c->bytes_left; i < 8; i++) { 580 c->partial_block[i] = 0; 581 } 582 mac_block_mesh(c, c->partial_block); 583 } 584 get_mac(c->buffer, 32, md); 585 return 1; 586} |
597 | 587 |
598int gost_imit_ctrl(EVP_MD_CTX *ctx,int type, int arg, void *ptr) 599 { 600 switch (type) 601 { 602 case EVP_MD_CTRL_KEY_LEN: 603 *((unsigned int*)(ptr)) = 32; 604 return 1; 605 case EVP_MD_CTRL_SET_KEY: 606 { 607 if (arg!=32) { 608 GOSTerr(GOST_F_GOST_IMIT_CTRL, GOST_R_INVALID_MAC_KEY_LENGTH); 609 return 0; 610 } | 588int gost_imit_ctrl(EVP_MD_CTX *ctx, int type, int arg, void *ptr) 589{ 590 switch (type) { 591 case EVP_MD_CTRL_KEY_LEN: 592 *((unsigned int *)(ptr)) = 32; 593 return 1; 594 case EVP_MD_CTRL_SET_KEY: 595 { 596 if (arg != 32) { 597 GOSTerr(GOST_F_GOST_IMIT_CTRL, GOST_R_INVALID_MAC_KEY_LENGTH); 598 return 0; 599 } |
611 | 600 |
612 gost_key(&(((struct ossl_gost_imit_ctx*)(ctx->md_data))->cctx),ptr) ; 613 ((struct ossl_gost_imit_ctx*)(ctx->md_data))->key_set = 1; 614 return 1; | 601 gost_key(&(((struct ossl_gost_imit_ctx *)(ctx->md_data))->cctx), 602 ptr); 603 ((struct ossl_gost_imit_ctx *)(ctx->md_data))->key_set = 1; 604 return 1; |
615 | 605 |
616 } 617 default: 618 return 0; 619 } 620 } | 606 } 607 default: 608 return 0; 609 } 610} |
621 | 611 |
622int gost_imit_copy(EVP_MD_CTX *to,const EVP_MD_CTX *from) 623 { 624 memcpy(to->md_data,from->md_data,sizeof(struct ossl_gost_imit_ctx)); 625 return 1; 626 } | 612int gost_imit_copy(EVP_MD_CTX *to, const EVP_MD_CTX *from) 613{ 614 memcpy(to->md_data, from->md_data, sizeof(struct ossl_gost_imit_ctx)); 615 return 1; 616} |
627 628/* Clean up imit ctx */ 629int gost_imit_cleanup(EVP_MD_CTX *ctx) | 617 618/* Clean up imit ctx */ 619int gost_imit_cleanup(EVP_MD_CTX *ctx) |
630 { 631 memset(ctx->md_data,0,sizeof(struct ossl_gost_imit_ctx)); 632 return 1; 633 } 634 | 620{ 621 memset(ctx->md_data, 0, sizeof(struct ossl_gost_imit_ctx)); 622 return 1; 623} |