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p_open.c

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1/* $OpenBSD: p_open.c,v 1.19 2017/05/02 03:59:44 deraadt Exp $ */-
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)-
3 * All rights reserved.-
4 *-
5 * This package is an SSL implementation written-
6 * by Eric Young (eay@cryptsoft.com).-
7 * The implementation was written so as to conform with Netscapes SSL.-
8 *-
9 * This library is free for commercial and non-commercial use as long as-
10 * the following conditions are aheared to. The following conditions-
11 * apply to all code found in this distribution, be it the RC4, RSA,-
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation-
13 * included with this distribution is covered by the same copyright terms-
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).-
15 *-
16 * Copyright remains Eric Young's, and as such any Copyright notices in-
17 * the code are not to be removed.-
18 * If this package is used in a product, Eric Young should be given attribution-
19 * as the author of the parts of the library used.-
20 * This can be in the form of a textual message at program startup or-
21 * in documentation (online or textual) provided with the package.-
22 *-
23 * Redistribution and use in source and binary forms, with or without-
24 * modification, are permitted provided that the following conditions-
25 * are met:-
26 * 1. Redistributions of source code must retain the copyright-
27 * notice, this list of conditions and the following disclaimer.-
28 * 2. Redistributions in binary form must reproduce the above copyright-
29 * notice, this list of conditions and the following disclaimer in the-
30 * documentation and/or other materials provided with the distribution.-
31 * 3. All advertising materials mentioning features or use of this software-
32 * must display the following acknowledgement:-
33 * "This product includes cryptographic software written by-
34 * Eric Young (eay@cryptsoft.com)"-
35 * The word 'cryptographic' can be left out if the rouines from the library-
36 * being used are not cryptographic related :-).-
37 * 4. If you include any Windows specific code (or a derivative thereof) from-
38 * the apps directory (application code) you must include an acknowledgement:-
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"-
40 *-
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND-
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE-
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE-
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE-
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL-
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS-
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)-
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT-
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY-
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF-
51 * SUCH DAMAGE.-
52 *-
53 * The licence and distribution terms for any publically available version or-
54 * derivative of this code cannot be changed. i.e. this code cannot simply be-
55 * copied and put under another distribution licence-
56 * [including the GNU Public Licence.]-
57 */-
58-
59#include <stdio.h>-
60#include <string.h>-
61-
62#include <openssl/opensslconf.h>-
63-
64#ifndef OPENSSL_NO_RSA-
65-
66#include <openssl/err.h>-
67#include <openssl/evp.h>-
68#include <openssl/objects.h>-
69#include <openssl/rsa.h>-
70#include <openssl/x509.h>-
71-
72int-
73EVP_OpenInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type,-
74 const unsigned char *ek, int ekl, const unsigned char *iv, EVP_PKEY *priv)-
75{-
76 unsigned char *key = NULL;-
77 int i, size = 0, ret = 0;-
78-
79 if (type) {
typeDescription
TRUEnever evaluated
FALSEnever evaluated
0
80 EVP_CIPHER_CTX_init(ctx);-
81 if (!EVP_DecryptInit_ex(ctx, type, NULL, NULL, NULL))
!EVP_DecryptIn... ((void *)0) )Description
TRUEnever evaluated
FALSEnever evaluated
0
82 return 0;
never executed: return 0;
0
83 }
never executed: end of block
0
84-
85 if (!priv)
!privDescription
TRUEnever evaluated
FALSEnever evaluated
0
86 return 1;
never executed: return 1;
0
87-
88 if (priv->type != EVP_PKEY_RSA) {
priv->type != 6Description
TRUEnever evaluated
FALSEnever evaluated
0
89 EVPerror(EVP_R_PUBLIC_KEY_NOT_RSA);-
90 goto err;
never executed: goto err;
0
91 }-
92-
93 size = RSA_size(priv->pkey.rsa);-
94 key = malloc(size + 2);-
95 if (key == NULL) {
key == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
96 /* ERROR */-
97 EVPerror(ERR_R_MALLOC_FAILURE);-
98 goto err;
never executed: goto err;
0
99 }-
100-
101 i = EVP_PKEY_decrypt_old(key, ek, ekl, priv);-
102 if ((i <= 0) || !EVP_CIPHER_CTX_set_key_length(ctx, i)) {
(i <= 0)Description
TRUEnever evaluated
FALSEnever evaluated
!EVP_CIPHER_CT...length(ctx, i)Description
TRUEnever evaluated
FALSEnever evaluated
0
103 /* ERROR */-
104 goto err;
never executed: goto err;
0
105 }-
106 if (!EVP_DecryptInit_ex(ctx, NULL, NULL, key, iv))
!EVP_DecryptIn...)0) , key, iv)Description
TRUEnever evaluated
FALSEnever evaluated
0
107 goto err;
never executed: goto err;
0
108-
109 ret = 1;-
110-
111err:
code before this statement never executed: err:
0
112 freezero(key, size);-
113 return (ret);
never executed: return (ret);
0
114}-
115-
116int-
117EVP_OpenFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl)-
118{-
119 int i;-
120-
121 i = EVP_DecryptFinal_ex(ctx, out, outl);-
122 if (i)
iDescription
TRUEnever evaluated
FALSEnever evaluated
0
123 i = EVP_DecryptInit_ex(ctx, NULL, NULL, NULL, NULL);
never executed: i = EVP_DecryptInit_ex(ctx, ((void *)0) , ((void *)0) , ((void *)0) , ((void *)0) );
0
124 return (i);
never executed: return (i);
0
125}-
126#endif-
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