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3e575651 | 1 | /* p12_crpt.c */ |
d3819813 MTL |
2 | /* |
3 | * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project | |
4 | * 1999. | |
3e575651 SL |
5 | */ |
6 | /* ==================================================================== | |
7 | * Copyright (c) 1999 The OpenSSL Project. All rights reserved. | |
8 | * | |
9 | * Redistribution and use in source and binary forms, with or without | |
10 | * modification, are permitted provided that the following conditions | |
11 | * are met: | |
12 | * | |
13 | * 1. Redistributions of source code must retain the above copyright | |
d3819813 | 14 | * notice, this list of conditions and the following disclaimer. |
3e575651 SL |
15 | * |
16 | * 2. Redistributions in binary form must reproduce the above copyright | |
17 | * notice, this list of conditions and the following disclaimer in | |
18 | * the documentation and/or other materials provided with the | |
19 | * distribution. | |
20 | * | |
21 | * 3. All advertising materials mentioning features or use of this | |
22 | * software must display the following acknowledgment: | |
23 | * "This product includes software developed by the OpenSSL Project | |
24 | * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | |
25 | * | |
26 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
27 | * endorse or promote products derived from this software without | |
28 | * prior written permission. For written permission, please contact | |
29 | * licensing@OpenSSL.org. | |
30 | * | |
31 | * 5. Products derived from this software may not be called "OpenSSL" | |
32 | * nor may "OpenSSL" appear in their names without prior written | |
33 | * permission of the OpenSSL Project. | |
34 | * | |
35 | * 6. Redistributions of any form whatsoever must retain the following | |
36 | * acknowledgment: | |
37 | * "This product includes software developed by the OpenSSL Project | |
38 | * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | |
39 | * | |
40 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
41 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
42 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
43 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
44 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
45 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
46 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
47 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
48 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
49 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
50 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
51 | * OF THE POSSIBILITY OF SUCH DAMAGE. | |
52 | * ==================================================================== | |
53 | * | |
54 | * This product includes cryptographic software written by Eric Young | |
55 | * (eay@cryptsoft.com). This product includes software written by Tim | |
56 | * Hudson (tjh@cryptsoft.com). | |
57 | * | |
58 | */ | |
59 | ||
60 | #include <stdio.h> | |
61 | #include "cryptlib.h" | |
62 | #include <openssl/pkcs12.h> | |
63 | ||
d3819813 | 64 | /* PKCS#12 PBE algorithms now in static table */ |
3e575651 SL |
65 | |
66 | void PKCS12_PBE_add(void) | |
67 | { | |
3e575651 SL |
68 | } |
69 | ||
70 | int PKCS12_PBE_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen, | |
d3819813 MTL |
71 | ASN1_TYPE *param, const EVP_CIPHER *cipher, |
72 | const EVP_MD *md, int en_de) | |
3e575651 | 73 | { |
d3819813 MTL |
74 | PBEPARAM *pbe; |
75 | int saltlen, iter, ret; | |
76 | unsigned char *salt; | |
77 | const unsigned char *pbuf; | |
78 | unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH]; | |
3e575651 | 79 | |
62f0afa2 MTL |
80 | if (cipher == NULL) |
81 | return 0; | |
82 | ||
d3819813 MTL |
83 | /* Extract useful info from parameter */ |
84 | if (param == NULL || param->type != V_ASN1_SEQUENCE || | |
85 | param->value.sequence == NULL) { | |
86 | PKCS12err(PKCS12_F_PKCS12_PBE_KEYIVGEN, PKCS12_R_DECODE_ERROR); | |
87 | return 0; | |
88 | } | |
3e575651 | 89 | |
d3819813 MTL |
90 | pbuf = param->value.sequence->data; |
91 | if (!(pbe = d2i_PBEPARAM(NULL, &pbuf, param->value.sequence->length))) { | |
92 | PKCS12err(PKCS12_F_PKCS12_PBE_KEYIVGEN, PKCS12_R_DECODE_ERROR); | |
93 | return 0; | |
94 | } | |
3e575651 | 95 | |
d3819813 MTL |
96 | if (!pbe->iter) |
97 | iter = 1; | |
98 | else | |
99 | iter = ASN1_INTEGER_get(pbe->iter); | |
100 | salt = pbe->salt->data; | |
101 | saltlen = pbe->salt->length; | |
102 | if (!PKCS12_key_gen(pass, passlen, salt, saltlen, PKCS12_KEY_ID, | |
103 | iter, EVP_CIPHER_key_length(cipher), key, md)) { | |
104 | PKCS12err(PKCS12_F_PKCS12_PBE_KEYIVGEN, PKCS12_R_KEY_GEN_ERROR); | |
105 | PBEPARAM_free(pbe); | |
106 | return 0; | |
107 | } | |
108 | if (!PKCS12_key_gen(pass, passlen, salt, saltlen, PKCS12_IV_ID, | |
109 | iter, EVP_CIPHER_iv_length(cipher), iv, md)) { | |
110 | PKCS12err(PKCS12_F_PKCS12_PBE_KEYIVGEN, PKCS12_R_IV_GEN_ERROR); | |
111 | PBEPARAM_free(pbe); | |
112 | return 0; | |
113 | } | |
114 | PBEPARAM_free(pbe); | |
115 | ret = EVP_CipherInit_ex(ctx, cipher, NULL, key, iv, en_de); | |
116 | OPENSSL_cleanse(key, EVP_MAX_KEY_LENGTH); | |
117 | OPENSSL_cleanse(iv, EVP_MAX_IV_LENGTH); | |
118 | return ret; | |
3e575651 | 119 | } |