/* 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
*/
#include <stdio.h>
+#include "internal/cryptlib.h"
#include <openssl/evp.h>
+#include <openssl/pkcs12.h>
#include <openssl/x509.h>
-#include "cryptlib.h"
+#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;
-EVP_CIPHER *cipher;
-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;
-int EVP_PBE_CipherInit (ASN1_OBJECT *pbe_obj, const char *pass, int passlen,
- ASN1_TYPE *param, EVP_CIPHER_CTX *ctx, int en_de)
+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)
{
+ 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) strcpy (obj_tmp, "NULL");
- else i2t_ASN1_OBJECT(obj_tmp, 80, 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 (EVP_PBE_CTL **pbe1, EVP_PBE_CTL **pbe2)
+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)
{
- 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 (int nid, EVP_CIPHER *cipher, EVP_MD *md,
- EVP_PBE_KEYGEN *keygen)
+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 *pbe_tmp;
- if (!pbe_algs) pbe_algs = sk_new (pbe_cmp);
- if (!(pbe_tmp = (EVP_PBE_CTL*) 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, 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;
}
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