2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
11 #include "internal/cryptlib.h"
12 #include <openssl/evp.h>
13 #include <openssl/objects.h>
14 #include <openssl/x509.h>
15 #include "crypto/evp.h"
17 int EVP_SignFinal_ex(EVP_MD_CTX *ctx, unsigned char *sigret,
18 unsigned int *siglen, EVP_PKEY *pkey, OPENSSL_CTX *libctx,
21 unsigned char m[EVP_MAX_MD_SIZE];
22 unsigned int m_len = 0;
25 EVP_PKEY_CTX *pkctx = NULL;
28 if (EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_FINALISE)) {
29 if (!EVP_DigestFinal_ex(ctx, m, &m_len))
33 EVP_MD_CTX *tmp_ctx = EVP_MD_CTX_new();
35 if (tmp_ctx == NULL) {
36 EVPerr(0, ERR_R_MALLOC_FAILURE);
39 rv = EVP_MD_CTX_copy_ex(tmp_ctx, ctx);
41 rv = EVP_DigestFinal_ex(tmp_ctx, m, &m_len);
42 EVP_MD_CTX_free(tmp_ctx);
47 sltmp = (size_t)EVP_PKEY_size(pkey);
49 pkctx = EVP_PKEY_CTX_new_from_pkey(libctx, pkey, propq);
52 if (EVP_PKEY_sign_init(pkctx) <= 0)
54 if (EVP_PKEY_CTX_set_signature_md(pkctx, EVP_MD_CTX_md(ctx)) <= 0)
56 if (EVP_PKEY_sign(pkctx, sigret, &sltmp, m, m_len) <= 0)
61 EVP_PKEY_CTX_free(pkctx);
65 int EVP_SignFinal(EVP_MD_CTX *ctx, unsigned char *sigret,
66 unsigned int *siglen, EVP_PKEY *pkey)
68 return EVP_SignFinal_ex(ctx, sigret, siglen, pkey, NULL, NULL);