2 ecdsa.c -- ECDSA key handling
3 Copyright (C) 2014-2017 Guus Sliepen <guus@meshlink.io>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License along
16 with this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
20 #include "../system.h"
24 #define __MESHLINK_ECDSA_INTERNAL__
30 #include "../logger.h"
33 #include "../xalloc.h"
35 // Get and set ECDSA keys
37 ecdsa_t *ecdsa_set_base64_public_key(const char *p) {
41 logger(NULL, MESHLINK_ERROR, "Invalid size %d for public key!", len);
45 ecdsa_t *ecdsa = xzalloc(sizeof * ecdsa);
46 len = b64decode(p, ecdsa->public, len);
49 logger(NULL, MESHLINK_ERROR, "Invalid format of public key! len = %d", len);
57 ecdsa_t *ecdsa_set_public_key(const void *p) {
58 ecdsa_t *ecdsa = xzalloc(sizeof(*ecdsa));
59 memcpy(ecdsa->public, p, sizeof ecdsa->public);
63 char *ecdsa_get_base64_public_key(ecdsa_t *ecdsa) {
64 char *base64 = xmalloc(44);
65 b64encode(ecdsa->public, base64, sizeof ecdsa->public);
70 const void *ecdsa_get_public_key(ecdsa_t *ecdsa) {
74 ecdsa_t *ecdsa_set_private_key(const void *p) {
75 ecdsa_t *ecdsa = xzalloc(sizeof(*ecdsa));
76 memcpy(ecdsa->private, p, sizeof(*ecdsa));
80 const void *ecdsa_get_private_key(ecdsa_t *ecdsa) {
81 return ecdsa->private;
84 // Read PEM ECDSA keys
86 ecdsa_t *ecdsa_read_pem_public_key(FILE *fp) {
87 ecdsa_t *ecdsa = xzalloc(sizeof(*ecdsa));
89 if(fread(ecdsa->public, sizeof ecdsa->public, 1, fp) == 1) {
97 ecdsa_t *ecdsa_read_pem_private_key(FILE *fp) {
98 ecdsa_t *ecdsa = xmalloc(sizeof * ecdsa);
100 if(fread(ecdsa, sizeof * ecdsa, 1, fp) == 1) {
108 size_t ecdsa_size(ecdsa_t *ecdsa) {
113 // TODO: standardise output format?
115 bool ecdsa_sign(ecdsa_t *ecdsa, const void *in, size_t len, void *sig) {
116 ed25519_sign(sig, in, len, ecdsa->public, ecdsa->private);
120 bool ecdsa_verify(ecdsa_t *ecdsa, const void *in, size_t len, const void *sig) {
121 return ed25519_verify(sig, in, len, ecdsa->public);
124 bool ecdsa_active(ecdsa_t *ecdsa) {
128 void ecdsa_free(ecdsa_t *ecdsa) {