New files.

Rev: src/nettle/dsa-sign.c:1.1
Rev: src/nettle/dsa-verify.c:1.1
Rev: src/nettle/dsa.c:1.1
Rev: src/nettle/dsa.h:1.1

1 files changed, 93 insertions, 0 deletions

diff --git a/dsa.c b/dsa.c
new file mode 100644
index 00000000..ae9f4bb9
--- /dev/null
+++ b/dsa.c
@@ -0,0 +1,93 @@
+/* dsa.h
+ *
+ * The DSA publickey algorithm.
+ */
+
+/* nettle, low-level cryptographics library
+ *
+ * Copyright (C) 2002 Niels Möller
+ *  
+ * The nettle library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at your
+ * option) any later version.
+ * 
+ * The nettle library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+ * License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with the nettle library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#if WITH_PUBLIC_KEY
+
+#include "dsa.h"
+
+#include "bignum.h"
+
+void
+dsa_public_key_init(struct dsa_public_key *key)
+{
+  mpz_init(key->p);
+  mpz_init(key->q);
+  mpz_init(key->g);
+  mpz_init(key->y);
+}
+
+void
+dsa_public_key_clear(struct dsa_public_key *key)
+{
+  mpz_clear(key->p);
+  mpz_clear(key->q);
+  mpz_clear(key->g);
+  mpz_clear(key->y);
+}
+
+
+void
+dsa_private_key_init(struct dsa_private_key *key)
+{
+  dsa_public_key_init(&key->pub);
+  mpz_init(key->x);
+}
+
+void
+dsa_private_key_clear(struct dsa_private_key *key)
+{
+  dsa_public_key_clear(&key->pub);
+  mpz_clear(key->x);
+}
+
+
+void
+dsa_signature_init(struct dsa_signature *signature)
+{
+  mpz_init(signature->r);
+  mpz_init(signature->s);
+}
+
+void
+dsa_signature_clear(struct dsa_signature *signature)
+{
+  mpz_clear(signature->r);
+  mpz_clear(signature->s);
+}
+
+void
+_dsa_hash(mpz_t x, struct sha1_ctx *hash)
+{
+  uint8_t digest[SHA1_DIGEST_SIZE];
+  sha1_digest(hash, sizeof(digest), digest);
+
+  nettle_mpz_set_str_256(x, sizeof(digest), digest);
+}
+
+#endif /* WITH_PUBLIC_KEY */