summaryrefslogtreecommitdiffstats
path: root/src/protocols/ec25519_fhmqvc/util.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/protocols/ec25519_fhmqvc/util.c')
-rw-r--r--src/protocols/ec25519_fhmqvc/util.c93
1 files changed, 93 insertions, 0 deletions
diff --git a/src/protocols/ec25519_fhmqvc/util.c b/src/protocols/ec25519_fhmqvc/util.c
new file mode 100644
index 0000000..07f4724
--- /dev/null
+++ b/src/protocols/ec25519_fhmqvc/util.c
@@ -0,0 +1,93 @@
+/*
+ Copyright (c) 2012-2013, Matthias Schiffer <mschiffer@universe-factory.net>
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+
+#include "ec25519_fhmqvc.h"
+
+
+static inline void print_hexdump(const char *desc, unsigned char d[32]) {
+ char buf[65];
+ hexdump(buf, d);
+
+ printf("%s%s\n", desc, buf);
+}
+
+void fastd_protocol_ec25519_fhmqvc_generate_key(fastd_context_t *ctx) {
+ ecc_int256_t secret_key;
+ ecc_int256_t public_key;
+
+ if (!ctx->conf->machine_readable)
+ pr_info(ctx, "Reading 32 bytes from /dev/random...");
+
+ fastd_random_bytes(ctx, secret_key.p, 32, true);
+ ecc_25519_gf_sanitize_secret(&secret_key, &secret_key);
+
+ ecc_25519_work_t work;
+ ecc_25519_scalarmult_base(&work, &secret_key);
+ ecc_25519_store_packed(&public_key, &work);
+
+ if (ctx->conf->machine_readable) {
+ print_hexdump("", secret_key.p);
+ }
+ else {
+ print_hexdump("Secret: ", secret_key.p);
+ print_hexdump("Public: ", public_key.p);
+ }
+}
+
+void fastd_protocol_ec25519_fhmqvc_show_key(fastd_context_t *ctx) {
+ if (ctx->conf->machine_readable)
+ print_hexdump("", ctx->conf->protocol_config->key.public.p);
+ else
+ print_hexdump("Public: ", ctx->conf->protocol_config->key.public.p);
+}
+
+void fastd_protocol_ec25519_fhmqvc_set_shell_env(fastd_context_t *ctx, const fastd_peer_t *peer) {
+ char buf[65];
+
+ hexdump(buf, ctx->conf->protocol_config->key.public.p);
+ setenv("LOCAL_KEY", buf, 1);
+
+ if (peer && peer->protocol_config) {
+ hexdump(buf, peer->protocol_config->public_key.p);
+ setenv("PEER_KEY", buf, 1);
+ }
+ else {
+ unsetenv("PEER_KEY");
+ }
+}
+
+bool fastd_protocol_ec25519_fhmqvc_describe_peer(const fastd_context_t *ctx UNUSED, const fastd_peer_t *peer, char *buf, size_t len) {
+ if (peer && peer->protocol_config) {
+ char dumpbuf[65];
+
+ hexdump(dumpbuf, peer->protocol_config->public_key.p);
+ snprintf(buf, len, "%.16s", dumpbuf);
+ return true;
+ }
+ else {
+ return false;
+ }
+}