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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/bio.h>
#include <openssl/bn.h>
#include <openssl/err.h>
#include <openssl/pem.h>
#include <openssl/rsa.h>
#include "../crypto/test/scoped_types.h"
#include "internal.h"
static const struct argument kArguments[] = {
{
"-nprimes", kOptionalArgument,
"The number of primes to generate (default: 2)",
},
{
"-bits", kOptionalArgument,
"The number of bits in the modulus (default: 2048)",
},
{
"", kOptionalArgument, "",
},
};
bool GenerateRSAKey(const std::vector<std::string> &args) {
std::map<std::string, std::string> args_map;
if (!ParseKeyValueArguments(&args_map, args, kArguments)) {
PrintUsage(kArguments);
return false;
}
unsigned bits, nprimes = 0;
if (!GetUnsigned(&bits, "-bits", 2048, args_map) ||
!GetUnsigned(&nprimes, "-nprimes", 2, args_map)) {
PrintUsage(kArguments);
return false;
}
ScopedRSA rsa(RSA_new());
ScopedBIGNUM e(BN_new());
ScopedBIO bio(BIO_new_fp(stdout, BIO_NOCLOSE));
if (!BN_set_word(e.get(), RSA_F4) ||
!RSA_generate_multi_prime_key(rsa.get(), bits, nprimes, e.get(), NULL) ||
!PEM_write_bio_RSAPrivateKey(bio.get(), rsa.get(), NULL /* cipher */,
NULL /* key */, 0 /* key len */,
NULL /* password callback */,
NULL /* callback arg */)) {
ERR_print_errors_fp(stderr);
return false;
}
return true;
}
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