839b881c61
RSA with more than two primes is specified in https://tools.ietf.org/html/rfc3447, although the idea goes back far earier than that. This change ports some of the changes in http://rt.openssl.org/Ticket/Display.html?id=3477&user=guest&pass=guest to BoringSSL—specifically those bits that are under an OpenSSL license. Change-Id: I51e8e345e2148702b8ce12e00518f6ef4683d3e1 Reviewed-on: https://boringssl-review.googlesource.com/4870 Reviewed-by: Adam Langley <agl@google.com>
70 lines
2.2 KiB
C++
70 lines
2.2 KiB
C++
/* Copyright (c) 2015, Google Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
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#include <openssl/bio.h>
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#include <openssl/bn.h>
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#include <openssl/err.h>
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#include <openssl/pem.h>
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#include <openssl/rsa.h>
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#include "../crypto/test/scoped_types.h"
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#include "internal.h"
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static const struct argument kArguments[] = {
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{
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"-nprimes", kOptionalArgument,
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"The number of primes to generate (default: 2)",
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},
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{
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"-bits", kOptionalArgument,
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"The number of bits in the modulus (default: 2048)",
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},
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{
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"", kOptionalArgument, "",
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},
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};
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bool GenerateRSAKey(const std::vector<std::string> &args) {
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std::map<std::string, std::string> args_map;
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if (!ParseKeyValueArguments(&args_map, args, kArguments)) {
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PrintUsage(kArguments);
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return false;
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}
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unsigned bits, nprimes;
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if (!GetUnsigned(&bits, "-bits", 2048, args_map) ||
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!GetUnsigned(&nprimes, "-nprimes", 2, args_map)) {
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PrintUsage(kArguments);
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return false;
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}
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ScopedRSA rsa(RSA_new());
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ScopedBIGNUM e(BN_new());
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ScopedBIO bio(BIO_new_fp(stdout, BIO_NOCLOSE));
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if (!BN_set_word(e.get(), RSA_F4) ||
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!RSA_generate_multi_prime_key(rsa.get(), bits, nprimes, e.get(), NULL) ||
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!PEM_write_bio_RSAPrivateKey(bio.get(), rsa.get(), NULL /* cipher */,
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NULL /* key */, 0 /* key len */,
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NULL /* password callback */,
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NULL /* callback arg */)) {
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ERR_print_errors_fp(stderr);
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return false;
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}
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return true;
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}
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