forgotten file (a lot of them)

[arm-crypto-lib.git] / dsa / dsa.h

diff --git a/dsa/dsa.h b/dsa/dsa.h
new file mode 100644 (file)
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--- /dev/null
+++ b/dsa/dsa.h
@@ -0,0 +1,59 @@
+/* dsa.h */
+/*
+    This file is part of the ARM-Crypto-Lib.
+    Copyright (C) 2010 Daniel Otte (daniel.otte@rub.de)
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program 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 General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef DSA_H_
+#define DSA_H_
+
+#include <stdint.h>
+#include "hfal-basic.h"
+#include "bigint.h"
+
+typedef struct{
+       bigint_t p;
+       bigint_t q;
+       bigint_t g;
+} dsa_domainparameters_t;
+
+typedef bigint_t dsa_pubkey_t;
+typedef bigint_t dsa_privkey_t;
+typedef struct{
+       bigint_t r;
+       bigint_t s;
+} dsa_signature_t;
+
+typedef struct{
+       dsa_privkey_t priv;
+       dsa_pubkey_t  pub;
+       dsa_domainparameters_t domain;
+} dsa_ctx_t;
+
+#define DSA_SIGNATURE_OK 1
+#define DSA_SIGNATURE_FAIL 0
+
+uint8_t dsa_sign_bigint(dsa_signature_t* s, const bigint_t* m,
+                               const dsa_ctx_t* ctx, const bigint_t* k);
+uint8_t dsa_sign_message(dsa_signature_t* s, const void* m, uint16_t m_len_b,
+                               const hfdesc_t* hash_desc, const dsa_ctx_t* ctx,
+                               uint8_t(*rand_in)(void));
+uint8_t dsa_verify_bigint(const dsa_signature_t* s, const bigint_t* m,
+                                 const dsa_ctx_t* ctx);
+uint8_t dsa_verify_message(const dsa_signature_t* s, const void* m, uint16_t m_len_b,
+                                                 const hfdesc_t* hash_desc, const dsa_ctx_t* ctx);
+
+#endif /* DSA_H_ */