diff options
Diffstat (limited to 'openssl/crypto/hmac/hm_pmeth.c')
| -rw-r--r-- | openssl/crypto/hmac/hm_pmeth.c | 373 |
1 files changed, 182 insertions, 191 deletions
diff --git a/openssl/crypto/hmac/hm_pmeth.c b/openssl/crypto/hmac/hm_pmeth.c index 0daa44511..0ffff79cc 100644 --- a/openssl/crypto/hmac/hm_pmeth.c +++ b/openssl/crypto/hmac/hm_pmeth.c @@ -1,5 +1,6 @@ -/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL - * project 2007. +/* + * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project + * 2007. */ /* ==================================================================== * Copyright (c) 2007 The OpenSSL Project. All rights reserved. @@ -9,7 +10,7 @@ * are met: * * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. + * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in @@ -65,207 +66,197 @@ /* HMAC pkey context structure */ -typedef struct - { - const EVP_MD *md; /* MD for HMAC use */ - ASN1_OCTET_STRING ktmp; /* Temp storage for key */ - HMAC_CTX ctx; - } HMAC_PKEY_CTX; +typedef struct { + const EVP_MD *md; /* MD for HMAC use */ + ASN1_OCTET_STRING ktmp; /* Temp storage for key */ + HMAC_CTX ctx; +} HMAC_PKEY_CTX; static int pkey_hmac_init(EVP_PKEY_CTX *ctx) - { - HMAC_PKEY_CTX *hctx; - hctx = OPENSSL_malloc(sizeof(HMAC_PKEY_CTX)); - if (!hctx) - return 0; - hctx->md = NULL; - hctx->ktmp.data = NULL; - hctx->ktmp.length = 0; - hctx->ktmp.flags = 0; - hctx->ktmp.type = V_ASN1_OCTET_STRING; - HMAC_CTX_init(&hctx->ctx); - - ctx->data = hctx; - ctx->keygen_info_count = 0; - - return 1; - } +{ + HMAC_PKEY_CTX *hctx; + hctx = OPENSSL_malloc(sizeof(HMAC_PKEY_CTX)); + if (!hctx) + return 0; + hctx->md = NULL; + hctx->ktmp.data = NULL; + hctx->ktmp.length = 0; + hctx->ktmp.flags = 0; + hctx->ktmp.type = V_ASN1_OCTET_STRING; + HMAC_CTX_init(&hctx->ctx); + + ctx->data = hctx; + ctx->keygen_info_count = 0; + + return 1; +} static int pkey_hmac_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src) - { - HMAC_PKEY_CTX *sctx, *dctx; - if (!pkey_hmac_init(dst)) - return 0; - sctx = src->data; - dctx = dst->data; - dctx->md = sctx->md; - HMAC_CTX_init(&dctx->ctx); - if (!HMAC_CTX_copy(&dctx->ctx, &sctx->ctx)) - return 0; - if (sctx->ktmp.data) - { - if (!ASN1_OCTET_STRING_set(&dctx->ktmp, - sctx->ktmp.data, sctx->ktmp.length)) - return 0; - } - return 1; - } +{ + HMAC_PKEY_CTX *sctx, *dctx; + if (!pkey_hmac_init(dst)) + return 0; + sctx = src->data; + dctx = dst->data; + dctx->md = sctx->md; + HMAC_CTX_init(&dctx->ctx); + if (!HMAC_CTX_copy(&dctx->ctx, &sctx->ctx)) + return 0; + if (sctx->ktmp.data) { + if (!ASN1_OCTET_STRING_set(&dctx->ktmp, + sctx->ktmp.data, sctx->ktmp.length)) + return 0; + } + return 1; +} static void pkey_hmac_cleanup(EVP_PKEY_CTX *ctx) - { - HMAC_PKEY_CTX *hctx = ctx->data; - HMAC_CTX_cleanup(&hctx->ctx); - if (hctx->ktmp.data) - { - if (hctx->ktmp.length) - OPENSSL_cleanse(hctx->ktmp.data, hctx->ktmp.length); - OPENSSL_free(hctx->ktmp.data); - hctx->ktmp.data = NULL; - } - OPENSSL_free(hctx); - } +{ + HMAC_PKEY_CTX *hctx = ctx->data; + HMAC_CTX_cleanup(&hctx->ctx); + if (hctx->ktmp.data) { + if (hctx->ktmp.length) + OPENSSL_cleanse(hctx->ktmp.data, hctx->ktmp.length); + OPENSSL_free(hctx->ktmp.data); + hctx->ktmp.data = NULL; + } + OPENSSL_free(hctx); +} static int pkey_hmac_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey) - { - ASN1_OCTET_STRING *hkey = NULL; - HMAC_PKEY_CTX *hctx = ctx->data; - if (!hctx->ktmp.data) - return 0; - hkey = ASN1_OCTET_STRING_dup(&hctx->ktmp); - if (!hkey) - return 0; - EVP_PKEY_assign(pkey, EVP_PKEY_HMAC, hkey); - - return 1; - } - -static int int_update(EVP_MD_CTX *ctx,const void *data,size_t count) - { - HMAC_PKEY_CTX *hctx = ctx->pctx->data; - if (!HMAC_Update(&hctx->ctx, data, count)) - return 0; - return 1; - } +{ + ASN1_OCTET_STRING *hkey = NULL; + HMAC_PKEY_CTX *hctx = ctx->data; + if (!hctx->ktmp.data) + return 0; + hkey = ASN1_OCTET_STRING_dup(&hctx->ktmp); + if (!hkey) + return 0; + EVP_PKEY_assign(pkey, EVP_PKEY_HMAC, hkey); + + return 1; +} + +static int int_update(EVP_MD_CTX *ctx, const void *data, size_t count) +{ + HMAC_PKEY_CTX *hctx = ctx->pctx->data; + if (!HMAC_Update(&hctx->ctx, data, count)) + return 0; + return 1; +} static int hmac_signctx_init(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx) - { - HMAC_PKEY_CTX *hctx = ctx->data; - HMAC_CTX_set_flags(&hctx->ctx, mctx->flags & ~EVP_MD_CTX_FLAG_NO_INIT); - EVP_MD_CTX_set_flags(mctx, EVP_MD_CTX_FLAG_NO_INIT); - mctx->update = int_update; - return 1; - } +{ + HMAC_PKEY_CTX *hctx = ctx->data; + HMAC_CTX_set_flags(&hctx->ctx, mctx->flags & ~EVP_MD_CTX_FLAG_NO_INIT); + EVP_MD_CTX_set_flags(mctx, EVP_MD_CTX_FLAG_NO_INIT); + mctx->update = int_update; + return 1; +} static int hmac_signctx(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen, - EVP_MD_CTX *mctx) - { - unsigned int hlen; - HMAC_PKEY_CTX *hctx = ctx->data; - int l = EVP_MD_CTX_size(mctx); - - if (l < 0) - return 0; - *siglen = l; - if (!sig) - return 1; - - if (!HMAC_Final(&hctx->ctx, sig, &hlen)) - return 0; - *siglen = (size_t)hlen; - return 1; - } + EVP_MD_CTX *mctx) +{ + unsigned int hlen; + HMAC_PKEY_CTX *hctx = ctx->data; + int l = EVP_MD_CTX_size(mctx); + + if (l < 0) + return 0; + *siglen = l; + if (!sig) + return 1; + + if (!HMAC_Final(&hctx->ctx, sig, &hlen)) + return 0; + *siglen = (size_t)hlen; + return 1; +} static int pkey_hmac_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2) - { - HMAC_PKEY_CTX *hctx = ctx->data; - ASN1_OCTET_STRING *key; - switch (type) - { - - case EVP_PKEY_CTRL_SET_MAC_KEY: - if ((!p2 && p1 > 0) || (p1 < -1)) - return 0; - if (!ASN1_OCTET_STRING_set(&hctx->ktmp, p2, p1)) - return 0; - break; - - case EVP_PKEY_CTRL_MD: - hctx->md = p2; - break; - - case EVP_PKEY_CTRL_DIGESTINIT: - key = (ASN1_OCTET_STRING *)ctx->pkey->pkey.ptr; - if (!HMAC_Init_ex(&hctx->ctx, key->data, key->length, hctx->md, - ctx->engine)) - return 0; - break; - - default: - return -2; - - } - return 1; - } +{ + HMAC_PKEY_CTX *hctx = ctx->data; + ASN1_OCTET_STRING *key; + switch (type) { + + case EVP_PKEY_CTRL_SET_MAC_KEY: + if ((!p2 && p1 > 0) || (p1 < -1)) + return 0; + if (!ASN1_OCTET_STRING_set(&hctx->ktmp, p2, p1)) + return 0; + break; + + case EVP_PKEY_CTRL_MD: + hctx->md = p2; + break; + + case EVP_PKEY_CTRL_DIGESTINIT: + key = (ASN1_OCTET_STRING *)ctx->pkey->pkey.ptr; + if (!HMAC_Init_ex(&hctx->ctx, key->data, key->length, hctx->md, + ctx->engine)) + return 0; + break; + + default: + return -2; + + } + return 1; +} static int pkey_hmac_ctrl_str(EVP_PKEY_CTX *ctx, - const char *type, const char *value) - { - if (!value) - { - return 0; - } - if (!strcmp(type, "key")) - { - void *p = (void *)value; - return pkey_hmac_ctrl(ctx, EVP_PKEY_CTRL_SET_MAC_KEY, - -1, p); - } - if (!strcmp(type, "hexkey")) - { - unsigned char *key; - int r; - long keylen; - key = string_to_hex(value, &keylen); - if (!key) - return 0; - r = pkey_hmac_ctrl(ctx, EVP_PKEY_CTRL_SET_MAC_KEY, keylen, key); - OPENSSL_free(key); - return r; - } - return -2; - } - -const EVP_PKEY_METHOD hmac_pkey_meth = - { - EVP_PKEY_HMAC, - 0, - pkey_hmac_init, - pkey_hmac_copy, - pkey_hmac_cleanup, - - 0, 0, - - 0, - pkey_hmac_keygen, - - 0, 0, - - 0, 0, - - 0,0, - - hmac_signctx_init, - hmac_signctx, - - 0,0, - - 0,0, - - 0,0, - - 0,0, - - pkey_hmac_ctrl, - pkey_hmac_ctrl_str - - }; + const char *type, const char *value) +{ + if (!value) { + return 0; + } + if (!strcmp(type, "key")) { + void *p = (void *)value; + return pkey_hmac_ctrl(ctx, EVP_PKEY_CTRL_SET_MAC_KEY, -1, p); + } + if (!strcmp(type, "hexkey")) { + unsigned char *key; + int r; + long keylen; + key = string_to_hex(value, &keylen); + if (!key) + return 0; + r = pkey_hmac_ctrl(ctx, EVP_PKEY_CTRL_SET_MAC_KEY, keylen, key); + OPENSSL_free(key); + return r; + } + return -2; +} + +const EVP_PKEY_METHOD hmac_pkey_meth = { + EVP_PKEY_HMAC, + 0, + pkey_hmac_init, + pkey_hmac_copy, + pkey_hmac_cleanup, + + 0, 0, + + 0, + pkey_hmac_keygen, + + 0, 0, + + 0, 0, + + 0, 0, + + hmac_signctx_init, + hmac_signctx, + + 0, 0, + + 0, 0, + + 0, 0, + + 0, 0, + + pkey_hmac_ctrl, + pkey_hmac_ctrl_str +}; 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