ssl/libcrypto/src/crypto/asn1/p5_pbe.c
changeset 0 e4d67989cc36
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ssl/libcrypto/src/crypto/asn1/p5_pbe.c	Tue Feb 02 02:01:42 2010 +0200
@@ -0,0 +1,131 @@
+/* p5_pbe.c */
+/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
+ * project 1999.
+ */
+/* ====================================================================
+ * Copyright (c) 1999 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
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * 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/asn1t.h>
+#include <openssl/x509.h>
+#include <openssl/rand.h>
+
+/* PKCS#5 password based encryption structure */
+
+ASN1_SEQUENCE(PBEPARAM) = {
+	ASN1_SIMPLE(PBEPARAM, salt, ASN1_OCTET_STRING),
+	ASN1_SIMPLE(PBEPARAM, iter, ASN1_INTEGER)
+} ASN1_SEQUENCE_END(PBEPARAM)
+
+IMPLEMENT_ASN1_FUNCTIONS(PBEPARAM)
+
+/* Return an algorithm identifier for a PKCS#5 PBE algorithm */
+
+EXPORT_C X509_ALGOR *PKCS5_pbe_set(int alg, int iter, unsigned char *salt,
+	     int saltlen)
+{
+	PBEPARAM *pbe=NULL;
+	ASN1_OBJECT *al;
+	X509_ALGOR *algor;
+	ASN1_TYPE *astype=NULL;
+
+	if (!(pbe = PBEPARAM_new ())) {
+		ASN1err(ASN1_F_PKCS5_PBE_SET,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_SET,ERR_R_MALLOC_FAILURE);
+		goto err;
+	}
+	if (!saltlen) saltlen = PKCS5_SALT_LEN;
+	if (!(pbe->salt->data = OPENSSL_malloc (saltlen))) {
+		ASN1err(ASN1_F_PKCS5_PBE_SET,ERR_R_MALLOC_FAILURE);
+		goto err;
+	}
+	pbe->salt->length = saltlen;
+	if (salt) memcpy (pbe->salt->data, salt, saltlen);
+	else if (RAND_pseudo_bytes (pbe->salt->data, saltlen) < 0)
+		goto err;
+
+	if (!(astype = ASN1_TYPE_new())) {
+		ASN1err(ASN1_F_PKCS5_PBE_SET,ERR_R_MALLOC_FAILURE);
+		goto err;
+	}
+
+	astype->type = V_ASN1_SEQUENCE;
+	if(!ASN1_pack_string_of(PBEPARAM, pbe, i2d_PBEPARAM,
+				&astype->value.sequence)) {
+		ASN1err(ASN1_F_PKCS5_PBE_SET,ERR_R_MALLOC_FAILURE);
+		goto err;
+	}
+	PBEPARAM_free (pbe);
+	pbe = NULL;
+	
+	al = OBJ_nid2obj(alg); /* never need to free al */
+	if (!(algor = X509_ALGOR_new())) {
+		ASN1err(ASN1_F_PKCS5_PBE_SET,ERR_R_MALLOC_FAILURE);
+		goto err;
+	}
+	ASN1_OBJECT_free(algor->algorithm);
+	algor->algorithm = al;
+	algor->parameter = astype;
+
+	return (algor);
+err:
+	if (pbe != NULL) PBEPARAM_free(pbe);
+	if (astype != NULL) ASN1_TYPE_free(astype);
+	return NULL;
+}