| /* |
| * Copyright 1999-2018 The OpenSSL Project Authors. All Rights Reserved. |
| * |
| * Licensed under the OpenSSL license (the "License"). You may not use |
| * this file except in compliance with the License. You can obtain a copy |
| * in the file LICENSE in the source distribution or at |
| * https://www.openssl.org/source/license.html |
| */ |
| |
| #include <stdio.h> |
| #include "internal/cryptlib.h" |
| #include <openssl/evp.h> |
| #include <openssl/pkcs12.h> |
| #include <openssl/x509.h> |
| #include "evp_local.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_hmac_md5, -1, NID_md5, 0}, |
| {EVP_PBE_TYPE_PRF, NID_hmac_sha1, -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_PRF, NID_hmacWithSHA512_224, -1, NID_sha512_224, 0}, |
| {EVP_PBE_TYPE_PRF, NID_hmacWithSHA512_256, -1, NID_sha512_256, 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; |
| |
| if (!sk_EVP_PBE_CTL_push(pbe_algs, pbe_tmp)) { |
| OPENSSL_free(pbe_tmp); |
| goto err; |
| } |
| 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 != NULL) { |
| i = sk_EVP_PBE_CTL_find(pbe_algs, &pbelu); |
| 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; |
| } |
