tinc/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;
}