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- /* Copyright (c) 2015, Google Inc.
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
- * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
- * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
- * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
-
- #include <openssl/curve25519.h>
-
- #include <errno.h>
- #include <stdio.h>
- #include <string.h>
-
- #include "internal.h"
-
-
- struct FileCloser {
- void operator()(FILE *file) {
- fclose(file);
- }
- };
-
- using ScopedFILE = std::unique_ptr<FILE, FileCloser>;
-
- static const struct argument kArguments[] = {
- {
- "-out-public", kRequiredArgument, "The file to write the public key to",
- },
- {
- "-out-private", kRequiredArgument,
- "The file to write the private key to",
- },
- {
- "", kOptionalArgument, "",
- },
- };
-
- static bool WriteToFile(const std::string &path, const uint8_t *in,
- size_t in_len) {
- ScopedFILE file(fopen(path.c_str(), "wb"));
- if (!file) {
- fprintf(stderr, "Failed to open '%s': %s\n", path.c_str(), strerror(errno));
- return false;
- }
- if (fwrite(in, in_len, 1, file.get()) != 1) {
- fprintf(stderr, "Failed to write to '%s': %s\n", path.c_str(),
- strerror(errno));
- return false;
- }
- return true;
- }
-
- bool GenerateEd25519Key(const std::vector<std::string> &args) {
- std::map<std::string, std::string> args_map;
-
- if (!ParseKeyValueArguments(&args_map, args, kArguments)) {
- PrintUsage(kArguments);
- return false;
- }
-
- uint8_t public_key[32], private_key[64];
- ED25519_keypair(public_key, private_key);
-
- return WriteToFile(args_map["-out-public"], public_key, sizeof(public_key)) &&
- WriteToFile(args_map["-out-private"], private_key,
- sizeof(private_key));
- }
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