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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 "../crypto/test/scoped_types.h"
#include "internal.h"
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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