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authorAdam Langley <agl@google.com>2015-01-22 14:27:53 -0800
committerAdam Langley <agl@google.com>2015-01-30 16:52:14 -0800
commitd9e397b599b13d642138480a28c14db7a136bf05 (patch)
tree34bab61dc4ce323b123ad4614dbc07e86ea2f9ef /src/crypto/dsa/dsa_asn1.c
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Initial commit of BoringSSL for Android.
Diffstat (limited to 'src/crypto/dsa/dsa_asn1.c')
-rw-r--r--src/crypto/dsa/dsa_asn1.c150
1 files changed, 150 insertions, 0 deletions
diff --git a/src/crypto/dsa/dsa_asn1.c b/src/crypto/dsa/dsa_asn1.c
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+/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
+ * project 2000. */
+/* ====================================================================
+ * Copyright (c) 2000-2005 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 <openssl/dsa.h>
+
+#include <string.h>
+
+#include <openssl/asn1.h>
+#include <openssl/asn1t.h>
+#include <openssl/err.h>
+#include <openssl/mem.h>
+
+#include "internal.h"
+
+
+static int dsa_sig_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
+ void *exarg) {
+ if (operation != ASN1_OP_NEW_PRE) {
+ return 1;
+ }
+
+ DSA_SIG *sig;
+ sig = OPENSSL_malloc(sizeof(DSA_SIG));
+ if (!sig) {
+ OPENSSL_PUT_ERROR(DSA, dsa_sig_cb, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+
+ memset(sig, 0, sizeof(DSA_SIG));
+ *pval = (ASN1_VALUE *)sig;
+ return 2;
+}
+
+ASN1_SEQUENCE_cb(DSA_SIG, dsa_sig_cb) = {
+ ASN1_SIMPLE(DSA_SIG, r, CBIGNUM),
+ ASN1_SIMPLE(DSA_SIG, s, CBIGNUM)} ASN1_SEQUENCE_END_cb(DSA_SIG, DSA_SIG);
+
+IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(DSA_SIG, DSA_SIG, DSA_SIG);
+
+
+static int dsa_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
+ void *exarg) {
+ switch (operation) {
+ case ASN1_OP_NEW_PRE:
+ *pval = (ASN1_VALUE *)DSA_new();
+ if (*pval) {
+ return 2;
+ }
+ return 0;
+
+ case ASN1_OP_FREE_PRE:
+ DSA_free((DSA *)*pval);
+ *pval = NULL;
+ return 2;
+
+ default:
+ return 1;
+ }
+}
+
+ASN1_SEQUENCE_cb(DSAPrivateKey, dsa_cb) = {
+ ASN1_SIMPLE(DSA, version, LONG),
+ ASN1_SIMPLE(DSA, p, BIGNUM),
+ ASN1_SIMPLE(DSA, q, BIGNUM),
+ ASN1_SIMPLE(DSA, g, BIGNUM),
+ ASN1_SIMPLE(DSA, pub_key, BIGNUM),
+ ASN1_SIMPLE(DSA, priv_key, BIGNUM)} ASN1_SEQUENCE_END_cb(DSA,
+ DSAPrivateKey);
+
+IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(DSA, DSAPrivateKey, DSAPrivateKey);
+
+ASN1_SEQUENCE_cb(DSAparams, dsa_cb) = {
+ ASN1_SIMPLE(DSA, p, BIGNUM), ASN1_SIMPLE(DSA, q, BIGNUM),
+ ASN1_SIMPLE(DSA, g, BIGNUM), } ASN1_SEQUENCE_END_cb(DSA, DSAparams);
+
+IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(DSA, DSAparams, DSAparams);
+
+
+/* DSA public key is a bit trickier... its effectively a CHOICE type decided by
+ * a field called write_params which can either write out just the public key
+ * as an INTEGER or the parameters and public key in a SEQUENCE. */
+
+ASN1_SEQUENCE(dsa_pub_internal) = {
+ ASN1_SIMPLE(DSA, pub_key, BIGNUM),
+ ASN1_SIMPLE(DSA, p, BIGNUM),
+ ASN1_SIMPLE(DSA, q, BIGNUM),
+ ASN1_SIMPLE(DSA, g, BIGNUM)
+} ASN1_SEQUENCE_END_name(DSA, dsa_pub_internal);
+
+ASN1_CHOICE_cb(DSAPublicKey, dsa_cb) = {
+ ASN1_SIMPLE(DSA, pub_key, BIGNUM),
+ ASN1_EX_COMBINE(0, 0, dsa_pub_internal)
+} ASN1_CHOICE_END_cb(DSA, DSAPublicKey, write_params);
+
+IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(DSA, DSAPublicKey, DSAPublicKey);
+
+DSA *DSAparams_dup(const DSA *dsa) {
+ return ASN1_item_dup(ASN1_ITEM_rptr(DSAparams), (DSA*) dsa);
+}