2 * Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved.
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
11 #include "internal/cryptlib.h"
12 #include <openssl/pkcs12.h>
13 #include <openssl/trace.h>
16 * Encrypt/Decrypt a buffer based on password and algor, result in a
17 * OPENSSL_malloc'ed buffer
19 unsigned char *PKCS12_pbe_crypt(const X509_ALGOR *algor,
20 const char *pass, int passlen,
21 const unsigned char *in, int inlen,
22 unsigned char **data, int *datalen, int en_de)
24 unsigned char *out = NULL;
26 EVP_CIPHER_CTX *ctx = EVP_CIPHER_CTX_new();
29 PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT, ERR_R_MALLOC_FAILURE);
34 if (!EVP_PBE_CipherInit(algor->algorithm, pass, passlen,
35 algor->parameter, ctx, en_de)) {
36 PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT,
37 PKCS12_R_PKCS12_ALGOR_CIPHERINIT_ERROR);
41 if ((out = OPENSSL_malloc(inlen + EVP_CIPHER_CTX_block_size(ctx)))
43 PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT, ERR_R_MALLOC_FAILURE);
47 if (!EVP_CipherUpdate(ctx, out, &i, in, inlen)) {
50 PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT, ERR_R_EVP_LIB);
55 if (!EVP_CipherFinal_ex(ctx, out + i, &i)) {
58 PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT,
59 PKCS12_R_PKCS12_CIPHERFINAL_ERROR);
68 EVP_CIPHER_CTX_free(ctx);
74 * Decrypt an OCTET STRING and decode ASN1 structure if zbuf set zero buffer
78 void *PKCS12_item_decrypt_d2i(const X509_ALGOR *algor, const ASN1_ITEM *it,
79 const char *pass, int passlen,
80 const ASN1_OCTET_STRING *oct, int zbuf)
83 const unsigned char *p;
87 if (!PKCS12_pbe_crypt(algor, pass, passlen, oct->data, oct->length,
89 PKCS12err(PKCS12_F_PKCS12_ITEM_DECRYPT_D2I,
90 PKCS12_R_PKCS12_PBE_CRYPT_ERROR);
94 OSSL_TRACE_BEGIN(PKCS12_DECRYPT) {
95 BIO_printf(trc_out, "\n");
96 BIO_dump(trc_out, out, outlen);
97 BIO_printf(trc_out, "\n");
98 } OSSL_TRACE_END(PKCS12_DECRYPT);
99 ret = ASN1_item_d2i(NULL, &p, outlen, it);
101 OPENSSL_cleanse(out, outlen);
103 PKCS12err(PKCS12_F_PKCS12_ITEM_DECRYPT_D2I, PKCS12_R_DECODE_ERROR);
109 * Encode ASN1 structure and encrypt, return OCTET STRING if zbuf set zero
113 ASN1_OCTET_STRING *PKCS12_item_i2d_encrypt(X509_ALGOR *algor,
115 const char *pass, int passlen,
118 ASN1_OCTET_STRING *oct = NULL;
119 unsigned char *in = NULL;
122 if ((oct = ASN1_OCTET_STRING_new()) == NULL) {
123 PKCS12err(PKCS12_F_PKCS12_ITEM_I2D_ENCRYPT, ERR_R_MALLOC_FAILURE);
126 inlen = ASN1_item_i2d(obj, &in, it);
128 PKCS12err(PKCS12_F_PKCS12_ITEM_I2D_ENCRYPT, PKCS12_R_ENCODE_ERROR);
131 if (!PKCS12_pbe_crypt(algor, pass, passlen, in, inlen, &oct->data,
133 PKCS12err(PKCS12_F_PKCS12_ITEM_I2D_ENCRYPT, PKCS12_R_ENCRYPT_ERROR);
138 OPENSSL_cleanse(in, inlen);
142 ASN1_OCTET_STRING_free(oct);