X-Git-Url: https://git.openssl.org/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fevp%2Fevp_pbe.c;h=dc908f804ef8c0e2c2642edc801151012841c1a6;hp=c26d2de0f3883adec9938decf8a92a300c5370b4;hb=4a640fb6c395302d7aad22833d573c44211b0a2d;hpb=8afca8d9c60c3d7db6f9bc94a97c77f016fc139d diff --git a/crypto/evp/evp_pbe.c b/crypto/evp/evp_pbe.c index c26d2de0f3..dc908f804e 100644 --- a/crypto/evp/evp_pbe.c +++ b/crypto/evp/evp_pbe.c @@ -1,16 +1,17 @@ /* evp_pbe.c */ -/* Written by Dr Stephen N Henson (shenson@bigfoot.com) 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. + * 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. + * 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 @@ -57,81 +58,250 @@ */ #include -#include "cryptlib.h" +#include "internal/cryptlib.h" #include +#include #include +#include "evp_locl.h" /* Password based encryption (PBE) functions */ -static STACK *pbe_algs; - /* Setup a cipher context from a PBE algorithm */ typedef struct { -int pbe_nid; -const EVP_CIPHER *cipher; -const EVP_MD *md; -EVP_PBE_KEYGEN *keygen; + int pbe_type; + int pbe_nid; + int cipher_nid; + int md_nid; + EVP_PBE_KEYGEN *keygen; } EVP_PBE_CTL; +DECLARE_STACK_OF(EVP_PBE_CTL) +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) + 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); - EVP_PBE_CTL *pbetmp, pbelu; - int i; - pbelu.pbe_nid = OBJ_obj2nid(pbe_obj); - if (pbelu.pbe_nid != NID_undef) i = sk_find(pbe_algs, (char *)&pbelu); - else i = -1; - - if (i == -1) { - char obj_tmp[80]; - EVPerr(EVP_F_EVP_PBE_CIPHERINIT,EVP_R_UNKNOWN_PBE_ALGORITHM); - if (!pbe_obj) BUF_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); - pbetmp = (EVP_PBE_CTL *)sk_value (pbe_algs, i); - i = (*pbetmp->keygen)(ctx, pass, passlen, param, pbetmp->cipher, - pbetmp->md, en_de); - if (!i) { - EVPerr(EVP_F_EVP_PBE_CIPHERINIT,EVP_R_KEYGEN_FAILURE); - return 0; - } - return 1; + 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; } -static int pbe_cmp(const char * const *a, const char * const *b) +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) { - const EVP_PBE_CTL * const *pbe1 = (const EVP_PBE_CTL * const *) a, - * const *pbe2 = (const EVP_PBE_CTL * const *)b; - return ((*pbe1)->pbe_nid - (*pbe2)->pbe_nid); + 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) + 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 *pbe_tmp; - if (!pbe_algs) pbe_algs = sk_new(pbe_cmp); - if (!(pbe_tmp = (EVP_PBE_CTL*) OPENSSL_malloc (sizeof(EVP_PBE_CTL)))) { - EVPerr(EVP_F_EVP_PBE_ALG_ADD,ERR_R_MALLOC_FAILURE); - return 0; - } - pbe_tmp->pbe_nid = nid; - pbe_tmp->cipher = cipher; - pbe_tmp->md = md; - pbe_tmp->keygen = keygen; - sk_push (pbe_algs, (char *)pbe_tmp); - return 1; + 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_pop_free(pbe_algs, OPENSSL_freeFunc); - pbe_algs = NULL; + 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; }