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openssl/crypto/evp/evp_pbe.c

 /* evp_pbe.c */
 /* 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. 
  *
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in
@@ skipping 35 matching lines @@
  *
  * 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 "cryptlib.h"
 #include <openssl/evp.h>
+#include <openssl/pkcs12.h>
 #include <openssl/x509.h>
 
 /* Password based encryption (PBE) functions */
 
-static STACK *pbe_algs;
+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_nid;
-const EVP_CIPHER *cipher;
-const EVP_MD *md;
-EVP_PBE_KEYGEN *keygen;
-} EVP_PBE_CTL;
+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},
+
+        {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},
+        };
+
+#ifdef TEST
+int main(int argc, char **argv)
+        {
+        int i, nid_md, nid_cipher;
+        EVP_PBE_CTL *tpbe, *tpbe2;
+        /*OpenSSL_add_all_algorithms();*/
+
+        for (i = 0; i < sizeof(builtin_pbe)/sizeof(EVP_PBE_CTL); i++)
+                {
+                tpbe = builtin_pbe + i;
+                fprintf(stderr, "%d %d %s ", tpbe->pbe_type, tpbe->pbe_nid,
+                                                OBJ_nid2sn(tpbe->pbe_nid));
+                if (EVP_PBE_find(tpbe->pbe_type, tpbe->pbe_nid,
+                                        &nid_cipher ,&nid_md,0))
+                        fprintf(stderr, "Found %s %s\n",
+                                        OBJ_nid2sn(nid_cipher),
+                                        OBJ_nid2sn(nid_md));
+                else
+                        fprintf(stderr, "Find ERROR!!\n");
+                }
+
+        return 0;
+        }
+#endif
+                
+
 
 int EVP_PBE_CipherInit(ASN1_OBJECT *pbe_obj, const char *pass, int passlen,
-             ASN1_TYPE *param, EVP_CIPHER_CTX *ctx, int en_de)
-{
-
-        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) {
+                       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) 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) {
+                }
+
+        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;       
 }
 
-static int pbe_cmp(const char * const *a, const char * 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);
-}
+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)
+                pbe_algs = sk_EVP_PBE_CTL_new(pbe_cmp);
+        if (!(pbe_tmp = (EVP_PBE_CTL*) OPENSSL_malloc (sizeof(EVP_PBE_CTL))))
+                {
+                EVPerr(EVP_F_EVP_PBE_ALG_ADD_TYPE,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;
+
+
+        sk_EVP_PBE_CTL_push (pbe_algs, pbe_tmp);
+        return 1;
+        }
+
 int EVP_PBE_alg_add(int nid, const EVP_CIPHER *cipher, const EVP_MD *md,
-             EVP_PBE_KEYGEN *keygen)
-{
-        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);
+                    EVP_PBE_KEYGEN *keygen)
+        {
+        int cipher_nid, md_nid;
+        if (cipher)
+                cipher_nid = EVP_CIPHER_type(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)
+         {
+         OPENSSL_freeFunc(pbe);
+         }
 
 void EVP_PBE_cleanup(void)
-{
-        sk_pop_free(pbe_algs, OPENSSL_freeFunc);
+        {
+        sk_EVP_PBE_CTL_pop_free(pbe_algs, free_evp_pbe_ctl);
         pbe_algs = NULL;
-}
+        }