diff options
Diffstat (limited to 'openssl/crypto/pkcs12/p12_decr.c')
| -rw-r--r-- | openssl/crypto/pkcs12/p12_decr.c | 224 |
1 files changed, 121 insertions, 103 deletions
diff --git a/openssl/crypto/pkcs12/p12_decr.c b/openssl/crypto/pkcs12/p12_decr.c index 9d3557e8d..b40ea10cc 100644 --- a/openssl/crypto/pkcs12/p12_decr.c +++ b/openssl/crypto/pkcs12/p12_decr.c @@ -1,6 +1,7 @@ /* p12_decr.c */ -/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL - * project 1999. +/* + * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project + * 1999. */ /* ==================================================================== * Copyright (c) 1999 The OpenSSL Project. All rights reserved. @@ -10,7 +11,7 @@ * are met: * * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. + * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in @@ -61,124 +62,141 @@ #include <openssl/pkcs12.h> /* Define this to dump decrypted output to files called DERnnn */ -/*#define DEBUG_DECRYPT*/ - +/* + * #define DEBUG_DECRYPT + */ -/* Encrypt/Decrypt a buffer based on password and algor, result in a +/* + * Encrypt/Decrypt a buffer based on password and algor, result in a * OPENSSL_malloc'ed buffer */ -unsigned char * PKCS12_pbe_crypt(X509_ALGOR *algor, const char *pass, - int passlen, unsigned char *in, int inlen, unsigned char **data, - int *datalen, int en_de) +unsigned char *PKCS12_pbe_crypt(X509_ALGOR *algor, const char *pass, + int passlen, unsigned char *in, int inlen, + unsigned char **data, int *datalen, int en_de) { - unsigned char *out; - int outlen, i; - EVP_CIPHER_CTX ctx; - - EVP_CIPHER_CTX_init(&ctx); - /* Decrypt data */ - if (!EVP_PBE_CipherInit(algor->algorithm, pass, passlen, - algor->parameter, &ctx, en_de)) { - PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT,PKCS12_R_PKCS12_ALGOR_CIPHERINIT_ERROR); - return NULL; - } - - if(!(out = OPENSSL_malloc(inlen + EVP_CIPHER_CTX_block_size(&ctx)))) { - PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT,ERR_R_MALLOC_FAILURE); - goto err; - } - - if (!EVP_CipherUpdate(&ctx, out, &i, in, inlen)) - { - OPENSSL_free(out); - out = NULL; - PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT,ERR_R_EVP_LIB); - goto err; - } - - outlen = i; - if(!EVP_CipherFinal_ex(&ctx, out + i, &i)) { - OPENSSL_free(out); - out = NULL; - PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT,PKCS12_R_PKCS12_CIPHERFINAL_ERROR); - goto err; - } - outlen += i; - if (datalen) *datalen = outlen; - if (data) *data = out; - err: - EVP_CIPHER_CTX_cleanup(&ctx); - return out; + unsigned char *out; + int outlen, i; + EVP_CIPHER_CTX ctx; + + EVP_CIPHER_CTX_init(&ctx); + /* Decrypt data */ + if (!EVP_PBE_CipherInit(algor->algorithm, pass, passlen, + algor->parameter, &ctx, en_de)) { + PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT, + PKCS12_R_PKCS12_ALGOR_CIPHERINIT_ERROR); + return NULL; + } + + if (!(out = OPENSSL_malloc(inlen + EVP_CIPHER_CTX_block_size(&ctx)))) { + PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT, ERR_R_MALLOC_FAILURE); + goto err; + } + + if (!EVP_CipherUpdate(&ctx, out, &i, in, inlen)) { + OPENSSL_free(out); + out = NULL; + PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT, ERR_R_EVP_LIB); + goto err; + } + + outlen = i; + if (!EVP_CipherFinal_ex(&ctx, out + i, &i)) { + OPENSSL_free(out); + out = NULL; + PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT, + PKCS12_R_PKCS12_CIPHERFINAL_ERROR); + goto err; + } + outlen += i; + if (datalen) + *datalen = outlen; + if (data) + *data = out; + err: + EVP_CIPHER_CTX_cleanup(&ctx); + return out; } -/* Decrypt an OCTET STRING and decode ASN1 structure - * if zbuf set zero buffer after use. +/* + * Decrypt an OCTET STRING and decode ASN1 structure if zbuf set zero buffer + * after use. */ -void * PKCS12_item_decrypt_d2i(X509_ALGOR *algor, const ASN1_ITEM *it, - const char *pass, int passlen, ASN1_OCTET_STRING *oct, int zbuf) +void *PKCS12_item_decrypt_d2i(X509_ALGOR *algor, const ASN1_ITEM *it, + const char *pass, int passlen, + ASN1_OCTET_STRING *oct, int zbuf) { - unsigned char *out; - const unsigned char *p; - void *ret; - int outlen; - - if (!PKCS12_pbe_crypt(algor, pass, passlen, oct->data, oct->length, - &out, &outlen, 0)) { - PKCS12err(PKCS12_F_PKCS12_ITEM_DECRYPT_D2I,PKCS12_R_PKCS12_PBE_CRYPT_ERROR); - return NULL; - } - p = out; + unsigned char *out; + const unsigned char *p; + void *ret; + int outlen; + + if (!PKCS12_pbe_crypt(algor, pass, passlen, oct->data, oct->length, + &out, &outlen, 0)) { + PKCS12err(PKCS12_F_PKCS12_ITEM_DECRYPT_D2I, + PKCS12_R_PKCS12_PBE_CRYPT_ERROR); + return NULL; + } + p = out; #ifdef DEBUG_DECRYPT - { - FILE *op; - - char fname[30]; - static int fnm = 1; - sprintf(fname, "DER%d", fnm++); - op = fopen(fname, "wb"); - fwrite (p, 1, outlen, op); - fclose(op); - } + { + FILE *op; + + char fname[30]; + static int fnm = 1; + sprintf(fname, "DER%d", fnm++); + op = fopen(fname, "wb"); + fwrite(p, 1, outlen, op); + fclose(op); + } #endif - ret = ASN1_item_d2i(NULL, &p, outlen, it); - if (zbuf) OPENSSL_cleanse(out, outlen); - if(!ret) PKCS12err(PKCS12_F_PKCS12_ITEM_DECRYPT_D2I,PKCS12_R_DECODE_ERROR); - OPENSSL_free(out); - return ret; + ret = ASN1_item_d2i(NULL, &p, outlen, it); + if (zbuf) + OPENSSL_cleanse(out, outlen); + if (!ret) + PKCS12err(PKCS12_F_PKCS12_ITEM_DECRYPT_D2I, PKCS12_R_DECODE_ERROR); + OPENSSL_free(out); + return ret; } -/* Encode ASN1 structure and encrypt, return OCTET STRING - * if zbuf set zero encoding. +/* + * Encode ASN1 structure and encrypt, return OCTET STRING if zbuf set zero + * encoding. */ -ASN1_OCTET_STRING *PKCS12_item_i2d_encrypt(X509_ALGOR *algor, const ASN1_ITEM *it, - const char *pass, int passlen, - void *obj, int zbuf) +ASN1_OCTET_STRING *PKCS12_item_i2d_encrypt(X509_ALGOR *algor, + const ASN1_ITEM *it, + const char *pass, int passlen, + void *obj, int zbuf) { - ASN1_OCTET_STRING *oct; - unsigned char *in = NULL; - int inlen; - if (!(oct = M_ASN1_OCTET_STRING_new ())) { - PKCS12err(PKCS12_F_PKCS12_ITEM_I2D_ENCRYPT,ERR_R_MALLOC_FAILURE); - return NULL; - } - inlen = ASN1_item_i2d(obj, &in, it); - if (!in) { - PKCS12err(PKCS12_F_PKCS12_ITEM_I2D_ENCRYPT,PKCS12_R_ENCODE_ERROR); - return NULL; - } - if (!PKCS12_pbe_crypt(algor, pass, passlen, in, inlen, &oct->data, - &oct->length, 1)) { - PKCS12err(PKCS12_F_PKCS12_ITEM_I2D_ENCRYPT,PKCS12_R_ENCRYPT_ERROR); - OPENSSL_free(in); - return NULL; - } - if (zbuf) OPENSSL_cleanse(in, inlen); - OPENSSL_free(in); - return oct; + ASN1_OCTET_STRING *oct = NULL; + unsigned char *in = NULL; + int inlen; + if (!(oct = M_ASN1_OCTET_STRING_new())) { + PKCS12err(PKCS12_F_PKCS12_ITEM_I2D_ENCRYPT, ERR_R_MALLOC_FAILURE); + goto err; + } + inlen = ASN1_item_i2d(obj, &in, it); + if (!in) { + PKCS12err(PKCS12_F_PKCS12_ITEM_I2D_ENCRYPT, PKCS12_R_ENCODE_ERROR); + goto err; + } + if (!PKCS12_pbe_crypt(algor, pass, passlen, in, inlen, &oct->data, + &oct->length, 1)) { + PKCS12err(PKCS12_F_PKCS12_ITEM_I2D_ENCRYPT, PKCS12_R_ENCRYPT_ERROR); + OPENSSL_free(in); + goto err; + } + if (zbuf) + OPENSSL_cleanse(in, inlen); + OPENSSL_free(in); + return oct; + err: + if (oct) + ASN1_OCTET_STRING_free(oct); + return NULL; } IMPLEMENT_PKCS12_STACK_OF(PKCS7) |