diff options
Diffstat (limited to 'openssl/crypto/asn1/p5_pbe.c')
| -rw-r--r-- | openssl/crypto/asn1/p5_pbe.c | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/openssl/crypto/asn1/p5_pbe.c b/openssl/crypto/asn1/p5_pbe.c new file mode 100644 index 00000000..94bc38b9 --- /dev/null +++ b/openssl/crypto/asn1/p5_pbe.c @@ -0,0 +1,148 @@ +/* p5_pbe.c */ +/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL + * project 1999. + */ +/* ==================================================================== + * Copyright (c) 1999 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * 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 + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * licensing@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include <stdio.h> +#include "cryptlib.h" +#include <openssl/asn1t.h> +#include <openssl/x509.h> +#include <openssl/rand.h> + +/* PKCS#5 password based encryption structure */ + +ASN1_SEQUENCE(PBEPARAM) = { + ASN1_SIMPLE(PBEPARAM, salt, ASN1_OCTET_STRING), + ASN1_SIMPLE(PBEPARAM, iter, ASN1_INTEGER) +} ASN1_SEQUENCE_END(PBEPARAM) + +IMPLEMENT_ASN1_FUNCTIONS(PBEPARAM) + + +/* Set an algorithm identifier for a PKCS#5 PBE algorithm */ + +int PKCS5_pbe_set0_algor(X509_ALGOR *algor, int alg, int iter, + const unsigned char *salt, int saltlen) + { + PBEPARAM *pbe=NULL; + ASN1_STRING *pbe_str=NULL; + unsigned char *sstr; + + pbe = PBEPARAM_new(); + if (!pbe) + { + ASN1err(ASN1_F_PKCS5_PBE_SET0_ALGOR,ERR_R_MALLOC_FAILURE); + goto err; + } + if(iter <= 0) + iter = PKCS5_DEFAULT_ITER; + if (!ASN1_INTEGER_set(pbe->iter, iter)) + { + ASN1err(ASN1_F_PKCS5_PBE_SET0_ALGOR,ERR_R_MALLOC_FAILURE); + goto err; + } + if (!saltlen) + saltlen = PKCS5_SALT_LEN; + if (!ASN1_STRING_set(pbe->salt, NULL, saltlen)) + { + ASN1err(ASN1_F_PKCS5_PBE_SET0_ALGOR,ERR_R_MALLOC_FAILURE); + goto err; + } + sstr = ASN1_STRING_data(pbe->salt); + if (salt) + memcpy(sstr, salt, saltlen); + else if (RAND_pseudo_bytes(sstr, saltlen) < 0) + goto err; + + if(!ASN1_item_pack(pbe, ASN1_ITEM_rptr(PBEPARAM), &pbe_str)) + { + ASN1err(ASN1_F_PKCS5_PBE_SET0_ALGOR,ERR_R_MALLOC_FAILURE); + goto err; + } + + PBEPARAM_free(pbe); + pbe = NULL; + + if (X509_ALGOR_set0(algor, OBJ_nid2obj(alg), V_ASN1_SEQUENCE, pbe_str)) + return 1; + +err: + if (pbe != NULL) + PBEPARAM_free(pbe); + if (pbe_str != NULL) + ASN1_STRING_free(pbe_str); + return 0; + } + +/* Return an algorithm identifier for a PKCS#5 PBE algorithm */ + +X509_ALGOR *PKCS5_pbe_set(int alg, int iter, + const unsigned char *salt, int saltlen) + { + X509_ALGOR *ret; + ret = X509_ALGOR_new(); + if (!ret) + { + ASN1err(ASN1_F_PKCS5_PBE_SET,ERR_R_MALLOC_FAILURE); + return NULL; + } + + if (PKCS5_pbe_set0_algor(ret, alg, iter, salt, saltlen)) + return ret; + + X509_ALGOR_free(ret); + return NULL; + } |