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130832150c
This is mostly a work around for the old VC++ problem that it treats func() as func(void). Various prototypes had been added to 'compare' function pointers that triggered this. This could be fixed by removing the prototype, adding function pointer casts to every call or changing the passed function to use the expected arguments. I mostly did the latter. The mkdef.pl script was modified to remove the typesafe functions which no longer exist. Oh and some functions called OPENSSL_freeLibrary() were changed back to FreeLibrary(), wonder how that happened :-)
137 lines
4.6 KiB
C
137 lines
4.6 KiB
C
/* evp_pbe.c */
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/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
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* project 1999.
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*/
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/* ====================================================================
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* Copyright (c) 1999 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* licensing@OpenSSL.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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#include <stdio.h>
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#include <openssl/evp.h>
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#include <openssl/x509.h>
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#include "cryptlib.h"
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/* Password based encryption (PBE) functions */
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static STACK *pbe_algs;
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/* Setup a cipher context from a PBE algorithm */
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typedef struct {
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int pbe_nid;
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EVP_CIPHER *cipher;
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EVP_MD *md;
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EVP_PBE_KEYGEN *keygen;
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} EVP_PBE_CTL;
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int EVP_PBE_CipherInit (ASN1_OBJECT *pbe_obj, const char *pass, int passlen,
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ASN1_TYPE *param, EVP_CIPHER_CTX *ctx, int en_de)
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{
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EVP_PBE_CTL *pbetmp, pbelu;
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int i;
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pbelu.pbe_nid = OBJ_obj2nid(pbe_obj);
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if (pbelu.pbe_nid != NID_undef) i = sk_find(pbe_algs, (char *)&pbelu);
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else i = -1;
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if (i == -1) {
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char obj_tmp[80];
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EVPerr(EVP_F_EVP_PBE_CIPHERINIT,EVP_R_UNKNOWN_PBE_ALGORITHM);
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if (!pbe_obj) strcpy (obj_tmp, "NULL");
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else i2t_ASN1_OBJECT(obj_tmp, 80, pbe_obj);
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ERR_add_error_data(2, "TYPE=", obj_tmp);
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return 0;
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}
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if(!pass) passlen = 0;
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else if (passlen == -1) passlen = strlen(pass);
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pbetmp = (EVP_PBE_CTL *)sk_value (pbe_algs, i);
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i = (*pbetmp->keygen)(ctx, pass, passlen, param, pbetmp->cipher,
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pbetmp->md, en_de);
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if (!i) {
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EVPerr(EVP_F_EVP_PBE_CIPHERINIT,EVP_R_KEYGEN_FAILURE);
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return 0;
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}
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return 1;
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}
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static int pbe_cmp(const char * const *a, const char * const *b)
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{
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EVP_PBE_CTL **pbe1 = (EVP_PBE_CTL **) a, **pbe2 = (EVP_PBE_CTL **)b;
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return ((*pbe1)->pbe_nid - (*pbe2)->pbe_nid);
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}
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/* Add a PBE algorithm */
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int EVP_PBE_alg_add (int nid, EVP_CIPHER *cipher, EVP_MD *md,
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EVP_PBE_KEYGEN *keygen)
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{
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EVP_PBE_CTL *pbe_tmp;
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if (!pbe_algs) pbe_algs = sk_new(pbe_cmp);
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if (!(pbe_tmp = (EVP_PBE_CTL*) OPENSSL_malloc (sizeof(EVP_PBE_CTL)))) {
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EVPerr(EVP_F_EVP_PBE_ALG_ADD,ERR_R_MALLOC_FAILURE);
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return 0;
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}
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pbe_tmp->pbe_nid = nid;
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pbe_tmp->cipher = cipher;
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pbe_tmp->md = md;
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pbe_tmp->keygen = keygen;
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sk_push (pbe_algs, (char *)pbe_tmp);
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return 1;
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}
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void EVP_PBE_cleanup(void)
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{
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sk_pop_free(pbe_algs, OPENSSL_freeFunc);
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pbe_algs = NULL;
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}
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