diff options
Diffstat (limited to 'crypto/evp/p_verify.c')
| -rw-r--r-- | crypto/evp/p_verify.c | 111 |
1 files changed, 53 insertions, 58 deletions
diff --git a/crypto/evp/p_verify.c b/crypto/evp/p_verify.c index c66d63ccf859..65e1e2169283 100644 --- a/crypto/evp/p_verify.c +++ b/crypto/evp/p_verify.c @@ -5,21 +5,21 @@ * This package is an SSL implementation written * by Eric Young (eay@cryptsoft.com). * The implementation was written so as to conform with Netscapes SSL. - * + * * This library is free for commercial and non-commercial use as long as * the following conditions are aheared to. The following conditions * apply to all code found in this distribution, be it the RC4, RSA, * lhash, DES, etc., code; not just the SSL code. The SSL documentation * included with this distribution is covered by the same copyright terms * except that the holder is Tim Hudson (tjh@cryptsoft.com). - * + * * Copyright remains Eric Young's, and as such any Copyright notices in * the code are not to be removed. * If this package is used in a product, Eric Young should be given attribution * as the author of the parts of the library used. * This can be in the form of a textual message at program startup or * in documentation (online or textual) provided with the package. - * + * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: @@ -34,10 +34,10 @@ * Eric Young (eay@cryptsoft.com)" * The word 'cryptographic' can be left out if the rouines from the library * being used are not cryptographic related :-). - * 4. If you include any Windows specific code (or a derivative thereof) from + * 4. If you include any Windows specific code (or a derivative thereof) from * the apps directory (application code) you must include an acknowledgement: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" - * + * * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE @@ -49,7 +49,7 @@ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. - * + * * The licence and distribution terms for any publically available version or * derivative of this code cannot be changed. i.e. this code cannot simply be * copied and put under another distribution licence @@ -63,59 +63,54 @@ #include <openssl/x509.h> int EVP_VerifyFinal(EVP_MD_CTX *ctx, const unsigned char *sigbuf, - unsigned int siglen, EVP_PKEY *pkey) - { - unsigned char m[EVP_MAX_MD_SIZE]; - unsigned int m_len; - int i = 0,ok = 0,v; - EVP_MD_CTX tmp_ctx; - EVP_PKEY_CTX *pkctx = NULL; - - EVP_MD_CTX_init(&tmp_ctx); - if (!EVP_MD_CTX_copy_ex(&tmp_ctx,ctx)) - goto err; - if (!EVP_DigestFinal_ex(&tmp_ctx,&(m[0]),&m_len)) - goto err; - EVP_MD_CTX_cleanup(&tmp_ctx); + unsigned int siglen, EVP_PKEY *pkey) +{ + unsigned char m[EVP_MAX_MD_SIZE]; + unsigned int m_len; + int i = 0, ok = 0, v; + EVP_MD_CTX tmp_ctx; + EVP_PKEY_CTX *pkctx = NULL; - if (ctx->digest->flags & EVP_MD_FLAG_PKEY_METHOD_SIGNATURE) - { - i = -1; - pkctx = EVP_PKEY_CTX_new(pkey, NULL); - if (!pkctx) - goto err; - if (EVP_PKEY_verify_init(pkctx) <= 0) - goto err; - if (EVP_PKEY_CTX_set_signature_md(pkctx, ctx->digest) <= 0) - goto err; - i = EVP_PKEY_verify(pkctx, sigbuf, siglen, m, m_len); - err: - EVP_PKEY_CTX_free(pkctx); - return i; - } + EVP_MD_CTX_init(&tmp_ctx); + if (!EVP_MD_CTX_copy_ex(&tmp_ctx, ctx)) + goto err; + if (!EVP_DigestFinal_ex(&tmp_ctx, &(m[0]), &m_len)) + goto err; + EVP_MD_CTX_cleanup(&tmp_ctx); - for (i=0; i<4; i++) - { - v=ctx->digest->required_pkey_type[i]; - if (v == 0) break; - if (pkey->type == v) - { - ok=1; - break; - } - } - if (!ok) - { - EVPerr(EVP_F_EVP_VERIFYFINAL,EVP_R_WRONG_PUBLIC_KEY_TYPE); - return(-1); - } - if (ctx->digest->verify == NULL) - { - EVPerr(EVP_F_EVP_VERIFYFINAL,EVP_R_NO_VERIFY_FUNCTION_CONFIGURED); - return(0); - } + if (ctx->digest->flags & EVP_MD_FLAG_PKEY_METHOD_SIGNATURE) { + i = -1; + pkctx = EVP_PKEY_CTX_new(pkey, NULL); + if (!pkctx) + goto err; + if (EVP_PKEY_verify_init(pkctx) <= 0) + goto err; + if (EVP_PKEY_CTX_set_signature_md(pkctx, ctx->digest) <= 0) + goto err; + i = EVP_PKEY_verify(pkctx, sigbuf, siglen, m, m_len); + err: + EVP_PKEY_CTX_free(pkctx); + return i; + } - return(ctx->digest->verify(ctx->digest->type,m,m_len, - sigbuf,siglen,pkey->pkey.ptr)); - } + for (i = 0; i < 4; i++) { + v = ctx->digest->required_pkey_type[i]; + if (v == 0) + break; + if (pkey->type == v) { + ok = 1; + break; + } + } + if (!ok) { + EVPerr(EVP_F_EVP_VERIFYFINAL, EVP_R_WRONG_PUBLIC_KEY_TYPE); + return (-1); + } + if (ctx->digest->verify == NULL) { + EVPerr(EVP_F_EVP_VERIFYFINAL, EVP_R_NO_VERIFY_FUNCTION_CONFIGURED); + return (0); + } + return (ctx->digest->verify(ctx->digest->type, m, m_len, + sigbuf, siglen, pkey->pkey.ptr)); +} |