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Commit | Line | Data |
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aa6bb135 RS |
1 | /* |
2 | * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. | |
d02b48c6 | 3 | * |
4a8b0c55 | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
aa6bb135 RS |
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 | ||
b39fc560 | 10 | #include "internal/cryptlib.h" |
effaf4de RS |
11 | #ifdef OPENSSL_NO_RSA |
12 | NON_EMPTY_TRANSLATION_UNIT | |
13 | #else | |
be9bec9b | 14 | |
effaf4de | 15 | # include <stdio.h> |
0f113f3e MC |
16 | # include <openssl/evp.h> |
17 | # include <openssl/objects.h> | |
18 | # include <openssl/x509.h> | |
19 | # include <openssl/rsa.h> | |
d02b48c6 | 20 | |
875a644a | 21 | int EVP_OpenInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type, |
0f113f3e MC |
22 | const unsigned char *ek, int ekl, const unsigned char *iv, |
23 | EVP_PKEY *priv) | |
24 | { | |
25 | unsigned char *key = NULL; | |
9420b403 RL |
26 | size_t keylen = 0; |
27 | int ret = 0; | |
28 | EVP_PKEY_CTX *pctx = NULL; | |
a91dedca | 29 | |
0f113f3e | 30 | if (type) { |
846ec07d | 31 | EVP_CIPHER_CTX_reset(ctx); |
0f113f3e | 32 | if (!EVP_DecryptInit_ex(ctx, type, NULL, NULL, NULL)) |
9420b403 | 33 | goto err; |
0f113f3e | 34 | } |
a91dedca | 35 | |
12a765a5 | 36 | if (priv == NULL) |
0f113f3e | 37 | return 1; |
a91dedca | 38 | |
9420b403 RL |
39 | if ((pctx = EVP_PKEY_CTX_new(priv, NULL)) == NULL) { |
40 | ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); | |
0f113f3e MC |
41 | goto err; |
42 | } | |
d02b48c6 | 43 | |
9420b403 RL |
44 | if (EVP_PKEY_decrypt_init(pctx) <= 0 |
45 | || EVP_PKEY_decrypt(pctx, NULL, &keylen, ek, ekl) <= 0) | |
0f113f3e | 46 | goto err; |
d02b48c6 | 47 | |
9420b403 RL |
48 | if ((key = OPENSSL_malloc(keylen)) == NULL) { |
49 | ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); | |
0f113f3e MC |
50 | goto err; |
51 | } | |
9420b403 RL |
52 | |
53 | if (EVP_PKEY_decrypt(pctx, key, &keylen, ek, ekl) <= 0) | |
54 | goto err; | |
55 | ||
56 | if (!EVP_CIPHER_CTX_set_key_length(ctx, keylen) | |
57 | || !EVP_DecryptInit_ex(ctx, NULL, NULL, key, iv)) | |
0f113f3e | 58 | goto err; |
d02b48c6 | 59 | |
0f113f3e MC |
60 | ret = 1; |
61 | err: | |
9420b403 RL |
62 | EVP_PKEY_CTX_free(pctx); |
63 | OPENSSL_clear_free(key, keylen); | |
26a7d938 | 64 | return ret; |
0f113f3e | 65 | } |
d02b48c6 | 66 | |
6b691a5c | 67 | int EVP_OpenFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl) |
0f113f3e MC |
68 | { |
69 | int i; | |
d02b48c6 | 70 | |
0f113f3e MC |
71 | i = EVP_DecryptFinal_ex(ctx, out, outl); |
72 | if (i) | |
73 | i = EVP_DecryptInit_ex(ctx, NULL, NULL, NULL, NULL); | |
26a7d938 | 74 | return i; |
0f113f3e | 75 | } |
f5d7a031 | 76 | #endif |