aboutsummaryrefslogtreecommitdiff
path: root/openssl-1.1.0h/crypto/asn1/p5_pbe.c
diff options
context:
space:
mode:
Diffstat (limited to 'openssl-1.1.0h/crypto/asn1/p5_pbe.c')
-rw-r--r--openssl-1.1.0h/crypto/asn1/p5_pbe.c96
1 files changed, 96 insertions, 0 deletions
diff --git a/openssl-1.1.0h/crypto/asn1/p5_pbe.c b/openssl-1.1.0h/crypto/asn1/p5_pbe.c
new file mode 100644
index 0000000..ab7e168
--- /dev/null
+++ b/openssl-1.1.0h/crypto/asn1/p5_pbe.c
@@ -0,0 +1,96 @@
+/*
+ * Copyright 1999-2016 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/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)
+
+/* Set an algorithm identifier for a PKCS#5 PBE algorithm */
+
+int PKCS5_pbe_set0_algor(X509_ALGOR *algor, int alg, int iter,
+ const unsigned char *salt, int saltlen)
+{
+ PBEPARAM *pbe = NULL;
+ ASN1_STRING *pbe_str = NULL;
+ unsigned char *sstr = NULL;
+
+ pbe = PBEPARAM_new();
+ if (pbe == NULL) {
+ 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;
+
+ sstr = OPENSSL_malloc(saltlen);
+ if (sstr == NULL) {
+ ASN1err(ASN1_F_PKCS5_PBE_SET0_ALGOR, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ if (salt)
+ memcpy(sstr, salt, saltlen);
+ else if (RAND_bytes(sstr, saltlen) <= 0)
+ goto err;
+
+ ASN1_STRING_set0(pbe->salt, sstr, saltlen);
+ sstr = NULL;
+
+ 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:
+ OPENSSL_free(sstr);
+ PBEPARAM_free(pbe);
+ 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,
+ const unsigned char *salt, int saltlen)
+{
+ X509_ALGOR *ret;
+ ret = X509_ALGOR_new();
+ if (ret == NULL) {
+ 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;
+}