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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
* Copyright (c) 2013-2023 Regents of the University of California.
*
* This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
*
* ndn-cxx library is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later version.
*
* ndn-cxx library is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
*
* You should have received copies of the GNU General Public License and GNU Lesser
* General Public License along with ndn-cxx, e.g., in COPYING.md file. If not, see
* <http://www.gnu.org/licenses/>.
*
* See AUTHORS.md for complete list of ndn-cxx authors and contributors.
*/
#include "ndnsec.hpp"
#include "util.hpp"
namespace ndn::ndnsec {
int
ndnsec_key_gen(int argc, char** argv)
{
namespace po = boost::program_options;
Name identityName;
bool wantNotDefault = false;
char keyTypeChoice;
char keyIdTypeChoice;
std::string userKeyId;
po::options_description description(
"Usage: ndnsec key-gen [-h] [-n] [-t TYPE] [-k KEYIDTYPE|--keyid KEYID] [-i] IDENTITY\n"
"\n"
"Options");
description.add_options()
("help,h", "produce help message")
("identity,i", po::value<Name>(&identityName), "identity name, e.g., /ndn/edu/ucla/alice")
("not-default,n", po::bool_switch(&wantNotDefault), "do not set the identity as default")
("type,t", po::value<char>(&keyTypeChoice)->default_value('e'),
"key type: 'r' for RSA, 'e' for ECDSA")
("keyid-type,k", po::value<char>(&keyIdTypeChoice),
"key ID type: 'h' for the SHA-256 of the public key, 'r' for a 64-bit "
"random number (the default unless --keyid is specified)")
("keyid", po::value<std::string>(&userKeyId),
"user-specified key ID, interpreted as a name component in URI format")
;
po::positional_options_description p;
p.add("identity", 1);
po::variables_map vm;
try {
po::store(po::command_line_parser(argc, argv).options(description).positional(p).run(), vm);
po::notify(vm);
}
catch (const std::exception& e) {
std::cerr << "ERROR: " << e.what() << "\n\n"
<< description << std::endl;
return 2;
}
if (vm.count("help") > 0) {
std::cout << description << std::endl;
return 0;
}
if (vm.count("identity") == 0) {
std::cerr << "ERROR: you must specify an identity" << std::endl;
return 2;
}
KeyIdType keyIdType = KeyIdType::RANDOM;
Name::Component userKeyIdComponent;
if (vm.count("keyid") > 0) {
if (vm.count("keyid-type") > 0) {
std::cerr << "ERROR: cannot specify both '--keyid' and '--keyid-type'" << std::endl;
return 2;
}
keyIdType = KeyIdType::USER_SPECIFIED;
userKeyIdComponent = name::Component::fromEscapedString(userKeyId);
if (userKeyIdComponent.empty() ||
userKeyIdComponent.isImplicitSha256Digest() ||
userKeyIdComponent.isParametersSha256Digest() ||
userKeyIdComponent.isKeyword()) {
std::cerr << "ERROR: '" << userKeyIdComponent << "' cannot be used as key ID" << std::endl;
return 2;
}
}
if (vm.count("keyid-type") > 0) {
switch (keyIdTypeChoice) {
case 'h':
keyIdType = KeyIdType::SHA256;
break;
case 'r':
// KeyIdType::RANDOM is the default
break;
default:
std::cerr << "ERROR: unrecognized key ID type '" << keyIdTypeChoice << "'" << std::endl;
return 2;
}
}
unique_ptr<KeyParams> params;
switch (keyTypeChoice) {
case 'r':
if (keyIdType == KeyIdType::USER_SPECIFIED) {
params = make_unique<RsaKeyParams>(userKeyIdComponent);
}
else {
params = make_unique<RsaKeyParams>(detail::RsaKeyParamsInfo::getDefaultSize(), keyIdType);
}
break;
case 'e':
if (keyIdType == KeyIdType::USER_SPECIFIED) {
params = make_unique<EcKeyParams>(userKeyIdComponent);
}
else {
params = make_unique<EcKeyParams>(detail::EcKeyParamsInfo::getDefaultSize(), keyIdType);
}
break;
default:
std::cerr << "ERROR: unrecognized key type '" << keyTypeChoice << "'" << std::endl;
return 2;
}
KeyChain keyChain;
security::Identity identity;
security::Key key;
try {
identity = keyChain.getPib().getIdentity(identityName);
key = keyChain.createKey(identity, *params);
}
catch (const security::Pib::Error&) {
// identity doesn't exist, so create it and generate key
identity = keyChain.createIdentity(identityName, *params);
key = identity.getDefaultKey();
}
if (!wantNotDefault) {
keyChain.setDefaultKey(identity, key);
keyChain.setDefaultIdentity(identity);
}
io::save(key.getDefaultCertificate(), std::cout);
return 0;
}
} // namespace ndn::ndnsec