1/* Copyright (c) 2015, Google Inc. 2 * 3 * Permission to use, copy, modify, and/or distribute this software for any 4 * purpose with or without fee is hereby granted, provided that the above 5 * copyright notice and this permission notice appear in all copies. 6 * 7 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 8 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 9 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 10 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 11 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION 12 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN 13 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ 14 15#include <openssl/curve25519.h> 16 17#include <errno.h> 18#include <stdio.h> 19#include <string.h> 20 21#include "../crypto/test/scoped_types.h" 22#include "internal.h" 23 24 25static const struct argument kArguments[] = { 26 { 27 "-out-public", kRequiredArgument, "The file to write the public key to", 28 }, 29 { 30 "-out-private", kRequiredArgument, 31 "The file to write the private key to", 32 }, 33 { 34 "", kOptionalArgument, "", 35 }, 36}; 37 38static bool WriteToFile(const std::string &path, const uint8_t *in, 39 size_t in_len) { 40 ScopedFILE file(fopen(path.c_str(), "wb")); 41 if (!file) { 42 fprintf(stderr, "Failed to open '%s': %s\n", path.c_str(), strerror(errno)); 43 return false; 44 } 45 if (fwrite(in, in_len, 1, file.get()) != 1) { 46 fprintf(stderr, "Failed to write to '%s': %s\n", path.c_str(), 47 strerror(errno)); 48 return false; 49 } 50 return true; 51} 52 53bool GenerateEd25519Key(const std::vector<std::string> &args) { 54 std::map<std::string, std::string> args_map; 55 56 if (!ParseKeyValueArguments(&args_map, args, kArguments)) { 57 PrintUsage(kArguments); 58 return false; 59 } 60 61 uint8_t public_key[32], private_key[64]; 62 ED25519_keypair(public_key, private_key); 63 64 return WriteToFile(args_map["-out-public"], public_key, sizeof(public_key)) && 65 WriteToFile(args_map["-out-private"], private_key, 66 sizeof(private_key)); 67} 68