X-Git-Url: https://www.tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=src%2Fed25519%2Fecdsa.c;fp=src%2Fed25519%2Fecdsa.c;h=1da27977560518afd6c519ac7edfa76a1074d545;hp=0000000000000000000000000000000000000000;hb=2f01744f82be542894fe2ceecbfb9ead93c9ffa5;hpb=d6734a2da483675f5bcc9cf7b15723a409b1019f

diff --git a/src/ed25519/ecdsa.c b/src/ed25519/ecdsa.c
new file mode 100644
index 00000000..1da27977
--- /dev/null
+++ b/src/ed25519/ecdsa.c
@@ -0,0 +1,102 @@
+/*
+    ecdsa.c -- ECDSA key handling
+    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 "../logger.h"
+#include "../ecdsa.h"
+#include "../utils.h"
+#include "../xalloc.h"
+
+// Get and set ECDSA keys
+//
+ecdsa_t *ecdsa_set_base64_public_key(const char *p) {
+	int len = strlen(p);
+
+	if(len != 43) {
+		logger(DEBUG_ALWAYS, LOG_ERR, "Invalid size %s for public key!", len);
+		return 0;
+	}
+
+	ecdsa_t *ecdsa = xzalloc(sizeof *ecdsa);
+	len = b64decode(p, ecdsa->public, len);
+	if(len != 32) {
+		logger(DEBUG_ALWAYS, LOG_ERR, "Invalid format of public key! len = %d", len);
+		free(ecdsa);
+		return 0;
+	}
+
+	return ecdsa;
+}
+
+char *ecdsa_get_base64_public_key(ecdsa_t *ecdsa) {
+	char *base64 = xmalloc(44);
+	b64encode(ecdsa->public, base64, sizeof ecdsa->public);
+
+	return base64;
+}
+
+// Read PEM ECDSA keys
+
+ecdsa_t *ecdsa_read_pem_public_key(FILE *fp) {
+	ecdsa_t *ecdsa = xzalloc(sizeof *ecdsa);
+	if(fread(ecdsa->public, sizeof ecdsa->public, 1, fp) == 1)
+		return ecdsa;
+	free(ecdsa);
+	return 0;
+}
+
+ecdsa_t *ecdsa_read_pem_private_key(FILE *fp) {
+	ecdsa_t *ecdsa = xmalloc(sizeof *ecdsa);
+	if(fread(ecdsa, sizeof *ecdsa, 1, fp) == 1)
+		return ecdsa;
+	free(ecdsa);
+	return 0;
+}
+
+size_t ecdsa_size(ecdsa_t *ecdsa) {
+	return 64;
+}
+
+// TODO: standardise output format?
+
+bool ecdsa_sign(ecdsa_t *ecdsa, const void *in, size_t len, void *sig) {
+	ed25519_sign(sig, in, len, ecdsa->public, ecdsa->private);
+	return true;
+}
+
+bool ecdsa_verify(ecdsa_t *ecdsa, const void *in, size_t len, const void *sig) {
+	return ed25519_verify(sig, in, len, ecdsa->public);
+}
+
+bool ecdsa_active(ecdsa_t *ecdsa) {
+	return ecdsa;
+}
+
+void ecdsa_free(ecdsa_t *ecdsa) {
+	free(ecdsa);
+}