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Commit | Line | Data |
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62867571 RS |
1 | /* |
2 | * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. | |
d02b48c6 | 3 | * |
62867571 RS |
4 | * Licensed under the OpenSSL license (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 | |
d02b48c6 RE |
8 | */ |
9 | ||
10 | #include <stdio.h> | |
b39fc560 | 11 | #include "internal/cryptlib.h" |
ec577822 BM |
12 | #include <openssl/evp.h> |
13 | #include <openssl/objects.h> | |
14 | #include <openssl/x509.h> | |
ab0a14bb | 15 | #include "internal/evp_int.h" |
d02b48c6 | 16 | |
0f113f3e MC |
17 | int EVP_SignFinal(EVP_MD_CTX *ctx, unsigned char *sigret, |
18 | unsigned int *siglen, EVP_PKEY *pkey) | |
19 | { | |
20 | unsigned char m[EVP_MAX_MD_SIZE]; | |
4c9b0a03 | 21 | unsigned int m_len = 0; |
7f572e95 DSH |
22 | int i = 0; |
23 | size_t sltmp; | |
0f113f3e | 24 | EVP_PKEY_CTX *pkctx = NULL; |
ee1d9ec0 | 25 | |
0f113f3e | 26 | *siglen = 0; |
77a01145 | 27 | if (EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_FINALISE)) { |
0f113f3e MC |
28 | if (!EVP_DigestFinal_ex(ctx, m, &m_len)) |
29 | goto err; | |
30 | } else { | |
4c9b0a03 | 31 | int rv = 0; |
bfb0641f | 32 | EVP_MD_CTX *tmp_ctx = EVP_MD_CTX_new(); |
77a01145 RL |
33 | if (tmp_ctx == NULL) { |
34 | EVPerr(EVP_F_EVP_SIGNFINAL, ERR_R_MALLOC_FAILURE); | |
35 | return 0; | |
36 | } | |
37 | rv = EVP_MD_CTX_copy_ex(tmp_ctx, ctx); | |
0f113f3e | 38 | if (rv) |
77a01145 | 39 | rv = EVP_DigestFinal_ex(tmp_ctx, m, &m_len); |
bfb0641f | 40 | EVP_MD_CTX_free(tmp_ctx); |
0f113f3e MC |
41 | if (!rv) |
42 | return 0; | |
43 | } | |
ee1d9ec0 | 44 | |
7f572e95 DSH |
45 | sltmp = (size_t)EVP_PKEY_size(pkey); |
46 | i = 0; | |
47 | pkctx = EVP_PKEY_CTX_new(pkey, NULL); | |
48 | if (pkctx == NULL) | |
49 | goto err; | |
50 | if (EVP_PKEY_sign_init(pkctx) <= 0) | |
51 | goto err; | |
ab0a14bb | 52 | if (EVP_PKEY_CTX_set_signature_md(pkctx, EVP_MD_CTX_md(ctx)) <= 0) |
7f572e95 DSH |
53 | goto err; |
54 | if (EVP_PKEY_sign(pkctx, sigret, &sltmp, m, m_len) <= 0) | |
55 | goto err; | |
56 | *siglen = sltmp; | |
57 | i = 1; | |
0f113f3e | 58 | err: |
77a01145 RL |
59 | EVP_PKEY_CTX_free(pkctx); |
60 | return i; | |
0f113f3e | 61 | } |