blob: 1d5deb81170850098dc669ec94a9641f10ca502a [file] [log] [blame]
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
/**
* Copyright (C) 2013 Regents of the University of California.
* @author: Yingdi Yu <yingdi@cs.ucla.edu>
* @author: Jeff Thompson <jefft0@remap.ucla.edu>
* See COPYING for copyright and distribution information.
*/
// We can use ndnboost::iostreams because this is internal and will not conflict with the application if it uses boost::iostreams.
#include <ndnboost/iostreams/stream.hpp>
#include <ndnboost/iostreams/device/array.hpp>
#include <ndn-cpp/security//security-exception.hpp>
#include "../../c/util/crypto.h"
#include "../../encoding/der/der.hpp"
#include <ndn-cpp/security/certificate/public-key.hpp>
using namespace std;
using namespace ndn::ptr_lib;
namespace ndn {
shared_ptr<der::DerNode>
PublicKey::toDer()
{
ndnboost::iostreams::stream<ndnboost::iostreams::array_source> is((const char*)keyDer_.buf (), keyDer_.size ());
return der::DerNode::parse(reinterpret_cast<der::InputIterator&> (is));
}
static int RSA_OID[] = { 1, 2, 840, 113549, 1, 1, 1 };
shared_ptr<PublicKey>
PublicKey::fromDer(const Blob& keyDer)
{
// Use a temporary pointer since d2i updates it.
const uint8_t *derPointer = keyDer.buf();
RSA *publicKey = d2i_RSA_PUBKEY(NULL, &derPointer, keyDer.size());
if (!publicKey)
throw UnrecognizedKeyFormatException("Error decoding public key DER");
RSA_free(publicKey);
return shared_ptr<PublicKey>(new PublicKey(OID(vector<int>(RSA_OID, RSA_OID + sizeof(RSA_OID))), keyDer));
}
Blob
PublicKey::getDigest(DigestAlgorithm digestAlgorithm) const
{
if (digestAlgorithm == DIGEST_ALGORITHM_SHA256) {
uint8_t digest[SHA256_DIGEST_LENGTH];
ndn_digestSha256(keyDer_.buf(), keyDer_.size(), digest);
return Blob(digest, sizeof(digest));
}
else
throw UnrecognizedDigestAlgorithmException("Wrong format!");
}
}