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openssl/crypto/evp/evp_pbe.c
Dr. Stephen Henson 4a1f3f2741 Only declare stacks in headers 
Don't define stacks in C source files: it causes warnings
about unused functions in some compilers.

Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-01-07 18:00:51 +00:00

306 lines
9.6 KiB
C
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/* evp_pbe.c */
/*
* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
* 1999.
*/
/* ====================================================================
* Copyright (c) 1999-2006 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 "internal/cryptlib.h"
#include <openssl/evp.h>
#include <openssl/pkcs12.h>
#include <openssl/x509.h>
#include "evp_locl.h"
/* Password based encryption (PBE) functions */
/* Setup a cipher context from a PBE algorithm */
struct evp_pbe_st {
int pbe_type;
int pbe_nid;
int cipher_nid;
int md_nid;
EVP_PBE_KEYGEN *keygen;
};
static STACK_OF(EVP_PBE_CTL) *pbe_algs;
static const EVP_PBE_CTL builtin_pbe[] = {
{EVP_PBE_TYPE_OUTER, NID_pbeWithMD2AndDES_CBC,
NID_des_cbc, NID_md2, PKCS5_PBE_keyivgen},
{EVP_PBE_TYPE_OUTER, NID_pbeWithMD5AndDES_CBC,
NID_des_cbc, NID_md5, PKCS5_PBE_keyivgen},
{EVP_PBE_TYPE_OUTER, NID_pbeWithSHA1AndRC2_CBC,
NID_rc2_64_cbc, NID_sha1, PKCS5_PBE_keyivgen},
{EVP_PBE_TYPE_OUTER, NID_id_pbkdf2, -1, -1, PKCS5_v2_PBKDF2_keyivgen},
{EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And128BitRC4,
NID_rc4, NID_sha1, PKCS12_PBE_keyivgen},
{EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And40BitRC4,
NID_rc4_40, NID_sha1, PKCS12_PBE_keyivgen},
{EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And3_Key_TripleDES_CBC,
NID_des_ede3_cbc, NID_sha1, PKCS12_PBE_keyivgen},
{EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And2_Key_TripleDES_CBC,
NID_des_ede_cbc, NID_sha1, PKCS12_PBE_keyivgen},
{EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And128BitRC2_CBC,
NID_rc2_cbc, NID_sha1, PKCS12_PBE_keyivgen},
{EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And40BitRC2_CBC,
NID_rc2_40_cbc, NID_sha1, PKCS12_PBE_keyivgen},
{EVP_PBE_TYPE_OUTER, NID_pbes2, -1, -1, PKCS5_v2_PBE_keyivgen},
{EVP_PBE_TYPE_OUTER, NID_pbeWithMD2AndRC2_CBC,
NID_rc2_64_cbc, NID_md2, PKCS5_PBE_keyivgen},
{EVP_PBE_TYPE_OUTER, NID_pbeWithMD5AndRC2_CBC,
NID_rc2_64_cbc, NID_md5, PKCS5_PBE_keyivgen},
{EVP_PBE_TYPE_OUTER, NID_pbeWithSHA1AndDES_CBC,
NID_des_cbc, NID_sha1, PKCS5_PBE_keyivgen},
{EVP_PBE_TYPE_PRF, NID_hmacWithSHA1, -1, NID_sha1, 0},
{EVP_PBE_TYPE_PRF, NID_hmacWithMD5, -1, NID_md5, 0},
{EVP_PBE_TYPE_PRF, NID_hmacWithSHA224, -1, NID_sha224, 0},
{EVP_PBE_TYPE_PRF, NID_hmacWithSHA256, -1, NID_sha256, 0},
{EVP_PBE_TYPE_PRF, NID_hmacWithSHA384, -1, NID_sha384, 0},
{EVP_PBE_TYPE_PRF, NID_hmacWithSHA512, -1, NID_sha512, 0},
{EVP_PBE_TYPE_PRF, NID_id_HMACGostR3411_94, -1, NID_id_GostR3411_94, 0},
{EVP_PBE_TYPE_PRF, NID_id_tc26_hmac_gost_3411_2012_256, -1,
NID_id_GostR3411_2012_256, 0},
{EVP_PBE_TYPE_PRF, NID_id_tc26_hmac_gost_3411_2012_512, -1,
NID_id_GostR3411_2012_512, 0},
{EVP_PBE_TYPE_KDF, NID_id_pbkdf2, -1, -1, PKCS5_v2_PBKDF2_keyivgen},
#ifndef OPENSSL_NO_SCRYPT
{EVP_PBE_TYPE_KDF, NID_id_scrypt, -1, -1, PKCS5_v2_scrypt_keyivgen}
#endif
};
int EVP_PBE_CipherInit(ASN1_OBJECT *pbe_obj, const char *pass, int passlen,
ASN1_TYPE *param, EVP_CIPHER_CTX *ctx, int en_de)
{
const EVP_CIPHER *cipher;
const EVP_MD *md;
int cipher_nid, md_nid;
EVP_PBE_KEYGEN *keygen;
if (!EVP_PBE_find(EVP_PBE_TYPE_OUTER, OBJ_obj2nid(pbe_obj),
&cipher_nid, &md_nid, &keygen)) {
char obj_tmp[80];
EVPerr(EVP_F_EVP_PBE_CIPHERINIT, EVP_R_UNKNOWN_PBE_ALGORITHM);
if (!pbe_obj)
OPENSSL_strlcpy(obj_tmp, "NULL", sizeof obj_tmp);
else
i2t_ASN1_OBJECT(obj_tmp, sizeof obj_tmp, pbe_obj);
ERR_add_error_data(2, "TYPE=", obj_tmp);
return 0;
}
if (!pass)
passlen = 0;
else if (passlen == -1)
passlen = strlen(pass);
if (cipher_nid == -1)
cipher = NULL;
else {
cipher = EVP_get_cipherbynid(cipher_nid);
if (!cipher) {
EVPerr(EVP_F_EVP_PBE_CIPHERINIT, EVP_R_UNKNOWN_CIPHER);
return 0;
}
}
if (md_nid == -1)
md = NULL;
else {
md = EVP_get_digestbynid(md_nid);
if (!md) {
EVPerr(EVP_F_EVP_PBE_CIPHERINIT, EVP_R_UNKNOWN_DIGEST);
return 0;
}
}
if (!keygen(ctx, pass, passlen, param, cipher, md, en_de)) {
EVPerr(EVP_F_EVP_PBE_CIPHERINIT, EVP_R_KEYGEN_FAILURE);
return 0;
}
return 1;
}
DECLARE_OBJ_BSEARCH_CMP_FN(EVP_PBE_CTL, EVP_PBE_CTL, pbe2);
static int pbe2_cmp(const EVP_PBE_CTL *pbe1, const EVP_PBE_CTL *pbe2)
{
int ret = pbe1->pbe_type - pbe2->pbe_type;
if (ret)
return ret;
else
return pbe1->pbe_nid - pbe2->pbe_nid;
}
IMPLEMENT_OBJ_BSEARCH_CMP_FN(EVP_PBE_CTL, EVP_PBE_CTL, pbe2);
static int pbe_cmp(const EVP_PBE_CTL *const *a, const EVP_PBE_CTL *const *b)
{
int ret = (*a)->pbe_type - (*b)->pbe_type;
if (ret)
return ret;
else
return (*a)->pbe_nid - (*b)->pbe_nid;
}
/* Add a PBE algorithm */
int EVP_PBE_alg_add_type(int pbe_type, int pbe_nid, int cipher_nid,
int md_nid, EVP_PBE_KEYGEN *keygen)
{
EVP_PBE_CTL *pbe_tmp;
if (pbe_algs == NULL) {
pbe_algs = sk_EVP_PBE_CTL_new(pbe_cmp);
if (pbe_algs == NULL)
goto err;
}
if ((pbe_tmp = OPENSSL_malloc(sizeof(*pbe_tmp))) == NULL)
goto err;
pbe_tmp->pbe_type = pbe_type;
pbe_tmp->pbe_nid = pbe_nid;
pbe_tmp->cipher_nid = cipher_nid;
pbe_tmp->md_nid = md_nid;
pbe_tmp->keygen = keygen;
sk_EVP_PBE_CTL_push(pbe_algs, pbe_tmp);
return 1;
err:
EVPerr(EVP_F_EVP_PBE_ALG_ADD_TYPE, ERR_R_MALLOC_FAILURE);
return 0;
}
int EVP_PBE_alg_add(int nid, const EVP_CIPHER *cipher, const EVP_MD *md,
EVP_PBE_KEYGEN *keygen)
{
int cipher_nid, md_nid;
if (cipher)
cipher_nid = EVP_CIPHER_nid(cipher);
else
cipher_nid = -1;
if (md)
md_nid = EVP_MD_type(md);
else
md_nid = -1;
return EVP_PBE_alg_add_type(EVP_PBE_TYPE_OUTER, nid,
cipher_nid, md_nid, keygen);
}
int EVP_PBE_find(int type, int pbe_nid,
int *pcnid, int *pmnid, EVP_PBE_KEYGEN **pkeygen)
{
EVP_PBE_CTL *pbetmp = NULL, pbelu;
int i;
if (pbe_nid == NID_undef)
return 0;
pbelu.pbe_type = type;
pbelu.pbe_nid = pbe_nid;
if (pbe_algs) {
i = sk_EVP_PBE_CTL_find(pbe_algs, &pbelu);
if (i != -1)
pbetmp = sk_EVP_PBE_CTL_value(pbe_algs, i);
}
if (pbetmp == NULL) {
pbetmp = OBJ_bsearch_pbe2(&pbelu, builtin_pbe, OSSL_NELEM(builtin_pbe));
}
if (pbetmp == NULL)
return 0;
if (pcnid)
*pcnid = pbetmp->cipher_nid;
if (pmnid)
*pmnid = pbetmp->md_nid;
if (pkeygen)
*pkeygen = pbetmp->keygen;
return 1;
}
static void free_evp_pbe_ctl(EVP_PBE_CTL *pbe)
{
OPENSSL_free(pbe);
}
void EVP_PBE_cleanup(void)
{
sk_EVP_PBE_CTL_pop_free(pbe_algs, free_evp_pbe_ctl);
pbe_algs = NULL;
}
int EVP_PBE_get(int *ptype, int *ppbe_nid, size_t num)
{
const EVP_PBE_CTL *tpbe;
if (num >= OSSL_NELEM(builtin_pbe))
return 0;
tpbe = builtin_pbe + num;
if (ptype)
*ptype = tpbe->pbe_type;
if (ppbe_nid)
*ppbe_nid = tpbe->pbe_nid;
return 1;
}
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