int
ndnsec_cert_gen(int argc, char** argv)
{
using boost::tokenizer;
using boost::escaped_list_separator;
using namespace ndn;
using namespace ndn::time;
namespace po = boost::program_options;
std::string notBeforeStr;
std::string notAfterStr;
std::string subjectName;
std::string requestFile("-");
std::string signId;
std::string subjectInfo;
bool hasSignId = false;
bool isNack = false;
po::options_description description("General Usage\n ndnsec cert-gen [-h] [-S date] [-E date] [-N subject-name] [-I subject-info] [-s sign-id] request\nGeneral options");
description.add_options()
("help,h", "produce help message")
("not-before,S", po::value<std::string>(¬BeforeStr), "certificate starting date, YYYYMMDDhhmmss")
("not-after,E", po::value<std::string>(¬AfterStr), "certificate ending date, YYYYMMDDhhmmss")
("subject-name,N", po::value<std::string>(&subjectName), "subject name")
("subject-info,I", po::value<std::string>(&subjectInfo), "subject info, pairs of OID and string description: \"2.5.4.10 'University of California, Los Angeles'\"")
("nack", "Generate revocation certificate (NACK)")
("sign-id,s", po::value<std::string>(&signId), "signing Identity, system default identity if not specified")
("request,r", po::value<std::string>(&requestFile), "request file name, - for stdin")
;
po::positional_options_description p;
p.add("request", 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() << std::endl;
return 1;
}
if (vm.count("help") != 0)
{
std::cerr << description << std::endl;
return 0;
}
if (vm.count("sign-id") != 0)
{
hasSignId = true;
}
if (vm.count("nack") != 0)
{
isNack = true;
}
std::vector<CertificateSubjectDescription> otherSubDescrypt;
tokenizer<escaped_list_separator<char> > subjectInfoItems
(subjectInfo, escaped_list_separator<char> ("\\", " \t", "'\""));
tokenizer<escaped_list_separator<char> >::iterator it =
subjectInfoItems.begin();
while (it != subjectInfoItems.end())
{
std::string oid = *it;
it++;
if (it == subjectInfoItems.end())
{
std::cerr << "ERROR: unmatched info for oid [" << oid << "]" << std::endl;
return 1;
}
std::string value = *it;
otherSubDescrypt.push_back(CertificateSubjectDescription(oid, value));
it++;
}
system_clock::TimePoint notBefore;
system_clock::TimePoint notAfter;
if (vm.count("not-before") == 0)
{
notBefore = system_clock::now();
}
else
{
notBefore = fromIsoString(notBeforeStr.substr(0, 8) + "T" +
notBeforeStr.substr(8, 6));
}
if (vm.count("not-after") == 0)
{
notAfter = notBefore + days(365);
}
else
{
notAfter = fromIsoString(notAfterStr.substr(0, 8) + "T" +
notAfterStr.substr(8, 6));
if (notAfter < notBefore)
{
std::cerr << "not-before is later than not-after" << std::endl;
return 1;
}
}
if (vm.count("request") == 0)
{
std::cerr << "request file must be specified" << std::endl;
return 1;
}
shared_ptr<IdentityCertificate> selfSignedCertificate
= getIdentityCertificate(requestFile);
if (!static_cast<bool>(selfSignedCertificate))
{
std::cerr << "ERROR: input error" << std::endl;
return 1;
}
KeyChain keyChain;
Name keyName = selfSignedCertificate->getPublicKeyName();
Name signIdName;
Name certName;
if (!hasSignId)
signIdName = keyChain.getDefaultIdentity();
else
signIdName = Name(signId);
if (signIdName.isPrefixOf(keyName))
{
// if signee's namespace is a sub-namespace of signer, for example, signer's namespace is
// /ndn/test, signee's namespace is /ndn/test/alice, the generated certificate name is
// /ndn/test/KEY/alice/ksk-1234/ID-CERT/%01%02
certName.append(signIdName)
.append("KEY")
.append(keyName.getSubName(signIdName.size()))
.append("ID-CERT")
.appendVersion();
}
else
{
// if signee's namespace is not a sub-namespace of signer, for example, signer's namespace is
// /ndn/test, signee's namespace is /ndn/ucla/bob, the generated certificate name is
// /ndn/ucla/bob/KEY/ksk-1234/ID-CERT/%01%02
certName.append(keyName.getPrefix(-1))
.append("KEY")
.append(keyName.get(-1))
.append("ID-CERT")
.appendVersion();
}
Block wire;
if (!isNack)
{
if (vm.count("subject-name") == 0)
{
std::cerr << "subject_name must be specified" << std::endl;
return 1;
}
CertificateSubjectDescription subDescryptName("2.5.4.41", subjectName);
IdentityCertificate certificate;
certificate.setName(certName);
certificate.setNotBefore(notBefore);
certificate.setNotAfter(notAfter);
certificate.setPublicKeyInfo(selfSignedCertificate->getPublicKeyInfo());
certificate.addSubjectDescription(subDescryptName);
for (size_t i = 0; i < otherSubDescrypt.size(); i++)
certificate.addSubjectDescription(otherSubDescrypt[i]);
certificate.encode();
keyChain.createIdentity(signIdName);
Name signingCertificateName = keyChain.getDefaultCertificateNameForIdentity(signIdName);
keyChain.sign(certificate, signingCertificateName);
wire = certificate.wireEncode();
}
else
{
Data revocationCert;
// revocationCert.setContent(void*, 0); // empty content
revocationCert.setName(certName);
keyChain.createIdentity(signIdName);
Name signingCertificateName = keyChain.getDefaultCertificateNameForIdentity(signIdName);
keyChain.sign(revocationCert, signingCertificateName);
wire = revocationCert.wireEncode();
}
try
{
using namespace CryptoPP;
StringSource ss(wire.wire(), wire.size(), true,
new Base64Encoder(new FileSink(std::cout), true, 64));
}
catch (const CryptoPP::Exception& e)
{
std::cerr << "ERROR: " << e.what() << std::endl;
return 1;
}
return 0;
}
