Use Ed25519 keys.

[tinc] / src / ed25519 / ecdsagen.c

diff --git a/src/ed25519/ecdsagen.c b/src/ed25519/ecdsagen.c
new file mode 100644 (file)
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--- /dev/null
+++ b/src/ed25519/ecdsagen.c
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+/*
+    ecdsagen.c -- ECDSA key generation and export
+    Copyright (C) 2011-2013 Guus Sliepen <guus@tinc-vpn.org>
+
+    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 2 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, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "../system.h"
+
+#include "ed25519.h"
+
+#define __TINC_ECDSA_INTERNAL__
+typedef struct {
+       uint8_t private[64];
+       uint8_t public[32];
+} ecdsa_t;
+
+#include "../crypto.h"
+#include "../ecdsagen.h"
+#include "../utils.h"
+#include "../xalloc.h"
+
+// Generate ECDSA key
+
+ecdsa_t *ecdsa_generate(void) {
+       ecdsa_t *ecdsa = xzalloc(sizeof *ecdsa);
+
+       uint8_t seed[32];
+       randomize(seed, sizeof seed);
+       ed25519_create_keypair(ecdsa->public, ecdsa->private, seed);
+
+       return ecdsa;
+}
+
+// Write PEM ECDSA keys
+
+bool ecdsa_write_pem_public_key(ecdsa_t *ecdsa, FILE *fp) {
+       return fwrite(ecdsa->public, sizeof ecdsa->public, 1, fp) == 1;
+}
+
+bool ecdsa_write_pem_private_key(ecdsa_t *ecdsa, FILE *fp) {
+       return fwrite(ecdsa, sizeof *ecdsa, 1, fp) == 1;
+}