/* p5_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.
* 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 "cryptlib.h"
-#include "asn1_mac.h"
-#include "rand.h"
+#include <openssl/asn1t.h>
+#include <openssl/x509.h>
+#include <openssl/rand.h>
/* PKCS#5 password based encryption structure */
-#define PKCS5_SALT_LEN 8
+ASN1_SEQUENCE(PBEPARAM) = {
+ ASN1_SIMPLE(PBEPARAM, salt, ASN1_OCTET_STRING),
+ ASN1_SIMPLE(PBEPARAM, iter, ASN1_INTEGER)
+} ASN1_SEQUENCE_END(PBEPARAM)
-/*
- *ASN1err(ASN1_F_PBEPARAM_NEW,ASN1_R_DECODE_ERROR)
- *ASN1err(ASN1_F_D2I_PBEPARAM,ASN1_R_DECODE_ERROR)
- */
-
-int i2d_PBEPARAM(PBEPARAM *a, unsigned char **pp)
-{
- M_ASN1_I2D_vars(a);
- M_ASN1_I2D_len (a->salt, i2d_ASN1_OCTET_STRING);
- M_ASN1_I2D_len (a->iter, i2d_ASN1_INTEGER);
+IMPLEMENT_ASN1_FUNCTIONS(PBEPARAM)
- M_ASN1_I2D_seq_total ();
+/* Set an algorithm identifier for a PKCS#5 PBE algorithm */
- M_ASN1_I2D_put (a->salt, i2d_ASN1_OCTET_STRING);
- M_ASN1_I2D_put (a->iter, i2d_ASN1_INTEGER);
- M_ASN1_I2D_finish();
-}
-
-PBEPARAM *PBEPARAM_new(void)
+int PKCS5_pbe_set0_algor(X509_ALGOR *algor, int alg, int iter,
+ const unsigned char *salt, int saltlen)
{
- PBEPARAM *ret=NULL;
- ASN1_CTX c;
- M_ASN1_New_Malloc(ret, PBEPARAM);
- M_ASN1_New(ret->iter,ASN1_INTEGER_new);
- M_ASN1_New(ret->salt,ASN1_OCTET_STRING_new);
- return (ret);
- M_ASN1_New_Error(ASN1_F_PBEPARAM_NEW);
-}
-
-PBEPARAM *d2i_PBEPARAM(PBEPARAM **a, unsigned char **pp, long length)
-{
- M_ASN1_D2I_vars(a,PBEPARAM *,PBEPARAM_new);
- M_ASN1_D2I_Init();
- M_ASN1_D2I_start_sequence();
- M_ASN1_D2I_get (ret->salt, d2i_ASN1_OCTET_STRING);
- M_ASN1_D2I_get (ret->iter, d2i_ASN1_INTEGER);
- M_ASN1_D2I_Finish(a, PBEPARAM_free, ASN1_F_D2I_PBEPARAM);
-}
-
-void PBEPARAM_free (PBEPARAM *a)
-{
- if(a==NULL) return;
- ASN1_OCTET_STRING_free(a->salt);
- ASN1_INTEGER_free (a->iter);
- Free ((char *)a);
+ PBEPARAM *pbe = NULL;
+ ASN1_STRING *pbe_str = NULL;
+ unsigned char *sstr;
+
+ pbe = PBEPARAM_new();
+ if (!pbe) {
+ ASN1err(ASN1_F_PKCS5_PBE_SET0_ALGOR, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ if (iter <= 0)
+ iter = PKCS5_DEFAULT_ITER;
+ if (!ASN1_INTEGER_set(pbe->iter, iter)) {
+ ASN1err(ASN1_F_PKCS5_PBE_SET0_ALGOR, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ if (!saltlen)
+ saltlen = PKCS5_SALT_LEN;
+ if (!ASN1_STRING_set(pbe->salt, NULL, saltlen)) {
+ ASN1err(ASN1_F_PKCS5_PBE_SET0_ALGOR, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ sstr = ASN1_STRING_data(pbe->salt);
+ if (salt)
+ memcpy(sstr, salt, saltlen);
+ else if (RAND_pseudo_bytes(sstr, saltlen) < 0)
+ goto err;
+
+ if (!ASN1_item_pack(pbe, ASN1_ITEM_rptr(PBEPARAM), &pbe_str)) {
+ ASN1err(ASN1_F_PKCS5_PBE_SET0_ALGOR, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ PBEPARAM_free(pbe);
+ pbe = NULL;
+
+ if (X509_ALGOR_set0(algor, OBJ_nid2obj(alg), V_ASN1_SEQUENCE, pbe_str))
+ return 1;
+
+ err:
+ if (pbe != NULL)
+ PBEPARAM_free(pbe);
+ if (pbe_str != NULL)
+ ASN1_STRING_free(pbe_str);
+ return 0;
}
/* Return an algorithm identifier for a PKCS#5 PBE algorithm */
-X509_ALGOR *PKCS5_pbe_set(int alg, int iter, unsigned char *salt,
- int saltlen)
+X509_ALGOR *PKCS5_pbe_set(int alg, int iter,
+ const unsigned char *salt, int saltlen)
{
- unsigned char *pdata, *ptmp;
- int plen;
- PBEPARAM *pbe;
- ASN1_OBJECT *al;
- X509_ALGOR *algor;
- ASN1_TYPE *astype;
-
- if (!(pbe = PBEPARAM_new ())) {
- ASN1err(ASN1_F_ASN1_PBE_SET,ERR_R_MALLOC_FAILURE);
- return NULL;
- }
- ASN1_INTEGER_set (pbe->iter, iter);
- if (!saltlen) saltlen = PKCS5_SALT_LEN;
- if (!(pbe->salt->data = Malloc (saltlen))) {
- ASN1err(ASN1_F_ASN1_PBE_SET,ERR_R_MALLOC_FAILURE);
- return NULL;
- }
- pbe->salt->length = saltlen;
- if (salt) memcpy (pbe->salt->data, salt, saltlen);
- else RAND_bytes (pbe->salt->data, saltlen);
- if (!(plen = i2d_PBEPARAM (pbe, NULL))) {
- ASN1err(ASN1_F_ASN1_PBE_SET,ASN1_R_ENCODE_ERROR);
- return NULL;
- }
- if (!(pdata = Malloc (plen))) {
- ASN1err(ASN1_F_ASN1_PBE_SET,ERR_R_MALLOC_FAILURE);
- return NULL;
- }
- ptmp = pdata;
- i2d_PBEPARAM (pbe, &ptmp);
- PBEPARAM_free (pbe);
-
- if (!(astype = ASN1_TYPE_new())) {
- ASN1err(ASN1_F_ASN1_PBE_SET,ERR_R_MALLOC_FAILURE);
- return NULL;
- }
-
- astype->type = V_ASN1_SEQUENCE;
- if (!(astype->value.sequence=ASN1_STRING_new())) {
- ASN1err(ASN1_F_ASN1_PBE_SET,ERR_R_MALLOC_FAILURE);
- return NULL;
- }
- ASN1_STRING_set (astype->value.sequence, pdata, plen);
- Free (pdata);
-
- al = OBJ_nid2obj(alg); /* never need to free al */
- if (!(algor = X509_ALGOR_new())) {
- ASN1err(ASN1_F_ASN1_PBE_SET,ERR_R_MALLOC_FAILURE);
- return NULL;
- }
- ASN1_OBJECT_free(algor->algorithm);
- algor->algorithm = al;
- algor->parameter = astype;
-
- return (algor);
+ X509_ALGOR *ret;
+ ret = X509_ALGOR_new();
+ if (!ret) {
+ ASN1err(ASN1_F_PKCS5_PBE_SET, ERR_R_MALLOC_FAILURE);
+ return NULL;
+ }
+
+ if (PKCS5_pbe_set0_algor(ret, alg, iter, salt, saltlen))
+ return ret;
+
+ X509_ALGOR_free(ret);
+ return NULL;
}
projects / openssl.git / blobdiff