1 /*
2 * Copyright 1999-2021 The OpenSSL Project Authors. All Rights Reserved.
3 *
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
8 */
9
10 #include <stdio.h>
11 #include "internal/cryptlib.h"
12 #include <openssl/core.h>
13 #include <openssl/core_names.h>
14 #include "crypto/evp.h"
15 #include <openssl/pkcs12.h>
16
17 /* PKCS#12 PBE algorithms now in static table */
18
PKCS12_PBE_add(void)19 void PKCS12_PBE_add(void)
20 {
21 }
22
PKCS12_PBE_keyivgen_ex(EVP_CIPHER_CTX * ctx,const char * pass,int passlen,ASN1_TYPE * param,const EVP_CIPHER * cipher,const EVP_MD * md,int en_de,OSSL_LIB_CTX * libctx,const char * propq)23 int PKCS12_PBE_keyivgen_ex(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
24 ASN1_TYPE *param, const EVP_CIPHER *cipher,
25 const EVP_MD *md, int en_de,
26 OSSL_LIB_CTX *libctx, const char *propq)
27 {
28 PBEPARAM *pbe;
29 int saltlen, iter, ret;
30 unsigned char *salt;
31 unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH];
32 unsigned char *piv = iv;
33
34 if (cipher == NULL)
35 return 0;
36
37 /* Extract useful info from parameter */
38
39 pbe = ASN1_TYPE_unpack_sequence(ASN1_ITEM_rptr(PBEPARAM), param);
40 if (pbe == NULL) {
41 ERR_raise(ERR_LIB_PKCS12, PKCS12_R_DECODE_ERROR);
42 return 0;
43 }
44
45 if (pbe->iter == NULL)
46 iter = 1;
47 else
48 iter = ASN1_INTEGER_get(pbe->iter);
49 salt = pbe->salt->data;
50 saltlen = pbe->salt->length;
51 if (!PKCS12_key_gen_utf8_ex(pass, passlen, salt, saltlen, PKCS12_KEY_ID,
52 iter, EVP_CIPHER_get_key_length(cipher),
53 key, md,
54 libctx, propq)) {
55 ERR_raise(ERR_LIB_PKCS12, PKCS12_R_KEY_GEN_ERROR);
56 PBEPARAM_free(pbe);
57 return 0;
58 }
59 if (EVP_CIPHER_get_iv_length(cipher) > 0) {
60 if (!PKCS12_key_gen_utf8_ex(pass, passlen, salt, saltlen, PKCS12_IV_ID,
61 iter, EVP_CIPHER_get_iv_length(cipher),
62 iv, md,
63 libctx, propq)) {
64 ERR_raise(ERR_LIB_PKCS12, PKCS12_R_IV_GEN_ERROR);
65 PBEPARAM_free(pbe);
66 return 0;
67 }
68 } else {
69 piv = NULL;
70 }
71 PBEPARAM_free(pbe);
72 ret = EVP_CipherInit_ex(ctx, cipher, NULL, key, piv, en_de);
73 OPENSSL_cleanse(key, EVP_MAX_KEY_LENGTH);
74 OPENSSL_cleanse(iv, EVP_MAX_IV_LENGTH);
75 return ret;
76 }
77
PKCS12_PBE_keyivgen(EVP_CIPHER_CTX * ctx,const char * pass,int passlen,ASN1_TYPE * param,const EVP_CIPHER * cipher,const EVP_MD * md,int en_de)78 int PKCS12_PBE_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
79 ASN1_TYPE *param, const EVP_CIPHER *cipher,
80 const EVP_MD *md, int en_de)
81 {
82 return PKCS12_PBE_keyivgen_ex(ctx, pass, passlen, param, cipher, md, en_de,
83 NULL, NULL);
84 }
85
86