/* $OpenBSD: evp_pbe.c,v 1.25 2017/01/29 17:49:23 beck Exp $ */ /* 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 #include #include #include #include #include #include #include "evp_locl.h" /* Password based encryption (PBE) functions */ DECLARE_STACK_OF(EVP_PBE_CTL) static STACK_OF(EVP_PBE_CTL) *pbe_algs; /* Setup a cipher context from a PBE algorithm */ typedef struct { int pbe_type; int pbe_nid; int cipher_nid; int md_nid; EVP_PBE_KEYGEN *keygen; } EVP_PBE_CTL; 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}, #ifndef OPENSSL_NO_HMAC {EVP_PBE_TYPE_OUTER, NID_id_pbkdf2, -1, -1, PKCS5_v2_PBKDF2_keyivgen}, #endif {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}, #ifndef OPENSSL_NO_HMAC {EVP_PBE_TYPE_OUTER, NID_pbes2, -1, -1, PKCS5_v2_PBE_keyivgen}, #endif {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}, }; 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]; EVPerror(EVP_R_UNKNOWN_PBE_ALGORITHM); if (!pbe_obj) strlcpy(obj_tmp, "NULL", sizeof obj_tmp); else i2t_ASN1_OBJECT(obj_tmp, sizeof obj_tmp, pbe_obj); ERR_asprintf_error_data("TYPE=%s", 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) { EVPerror(EVP_R_UNKNOWN_CIPHER); return 0; } } if (md_nid == -1) md = NULL; else { md = EVP_get_digestbynid(md_nid); if (!md) { EVPerror(EVP_R_UNKNOWN_DIGEST); return 0; } } if (!keygen(ctx, pass, passlen, param, cipher, md, en_de)) { EVPerror(EVP_R_KEYGEN_FAILURE); return 0; } return 1; } static int pbe2_cmp_BSEARCH_CMP_FN(const void *, const void *); static int pbe2_cmp(EVP_PBE_CTL const *, EVP_PBE_CTL const *); static EVP_PBE_CTL *OBJ_bsearch_pbe2(EVP_PBE_CTL *key, EVP_PBE_CTL const *base, int num); 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; } static int pbe2_cmp_BSEARCH_CMP_FN(const void *a_, const void *b_) { EVP_PBE_CTL const *a = a_; EVP_PBE_CTL const *b = b_; return pbe2_cmp(a, b); } static EVP_PBE_CTL * OBJ_bsearch_pbe2(EVP_PBE_CTL *key, EVP_PBE_CTL const *base, int num) { return (EVP_PBE_CTL *)OBJ_bsearch_(key, base, num, sizeof(EVP_PBE_CTL), pbe2_cmp_BSEARCH_CMP_FN); } 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) { EVPerror(ERR_R_MALLOC_FAILURE); return 0; } } pbe_tmp = malloc(sizeof(EVP_PBE_CTL)); if (pbe_tmp == NULL) { EVPerror(ERR_R_MALLOC_FAILURE); return 0; } 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; if (sk_EVP_PBE_CTL_push(pbe_algs, pbe_tmp) == 0) { free(pbe_tmp); EVPerror(ERR_R_MALLOC_FAILURE); return 0; } return 1; } 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, sizeof(builtin_pbe)/sizeof(EVP_PBE_CTL)); } 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) { free(pbe); } void EVP_PBE_cleanup(void) { sk_EVP_PBE_CTL_pop_free(pbe_algs, free_evp_pbe_ctl); pbe_algs = NULL; }