mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
318 lines
9.9 KiB
C++
318 lines
9.9 KiB
C++
/*
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This file is part of cpp-ethereum.
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cpp-ethereum is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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cpp-ethereum is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file crypto.cpp
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* @author Gav Wood <i@gavwood.com>
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* @date 2014
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* Crypto test functions.
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*/
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#include <random>
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#include <secp256k1/secp256k1.h>
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#include <libdevcore/Common.h>
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#include <libdevcore/RLP.h>
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#include <libdevcore/Log.h>
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#include <libethereum/Transaction.h>
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#include <boost/test/unit_test.hpp>
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#include "TestHelperCrypto.h"
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using namespace std;
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using namespace dev;
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namespace dev
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{
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namespace crypto
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{
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inline CryptoPP::AutoSeededRandomPool& PRNG() {
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static CryptoPP::AutoSeededRandomPool prng;
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return prng;
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}
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}
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}
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using namespace CryptoPP;
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BOOST_AUTO_TEST_SUITE(crypto)
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BOOST_AUTO_TEST_CASE(cryptopp_ecies_message)
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{
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cnote << "Testing cryptopp_ecies_message...";
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string const message("Now is the time for all good men to come to the aide of humanity.");
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AutoSeededRandomPool prng;
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ECIES<ECP>::Decryptor localDecryptor(prng, ASN1::secp256r1());
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SavePrivateKey(localDecryptor.GetPrivateKey());
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ECIES<ECP>::Encryptor localEncryptor(localDecryptor);
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SavePublicKey(localEncryptor.GetPublicKey());
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ECIES<ECP>::Decryptor futureDecryptor;
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LoadPrivateKey(futureDecryptor.AccessPrivateKey());
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futureDecryptor.GetPrivateKey().ThrowIfInvalid(prng, 3);
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ECIES<ECP>::Encryptor futureEncryptor;
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LoadPublicKey(futureEncryptor.AccessPublicKey());
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futureEncryptor.GetPublicKey().ThrowIfInvalid(prng, 3);
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// encrypt/decrypt with local
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string cipherLocal;
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StringSource ss1 (message, true, new PK_EncryptorFilter(prng, localEncryptor, new StringSink(cipherLocal) ) );
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string plainLocal;
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StringSource ss2 (cipherLocal, true, new PK_DecryptorFilter(prng, localDecryptor, new StringSink(plainLocal) ) );
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// encrypt/decrypt with future
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string cipherFuture;
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StringSource ss3 (message, true, new PK_EncryptorFilter(prng, futureEncryptor, new StringSink(cipherFuture) ) );
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string plainFuture;
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StringSource ss4 (cipherFuture, true, new PK_DecryptorFilter(prng, futureDecryptor, new StringSink(plainFuture) ) );
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// decrypt local w/future
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string plainFutureFromLocal;
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StringSource ss5 (cipherLocal, true, new PK_DecryptorFilter(prng, futureDecryptor, new StringSink(plainFutureFromLocal) ) );
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// decrypt future w/local
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string plainLocalFromFuture;
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StringSource ss6 (cipherFuture, true, new PK_DecryptorFilter(prng, localDecryptor, new StringSink(plainLocalFromFuture) ) );
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assert(plainLocal == message);
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assert(plainFuture == plainLocal);
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assert(plainFutureFromLocal == plainLocal);
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assert(plainLocalFromFuture == plainLocal);
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}
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BOOST_AUTO_TEST_CASE(cryptopp_ecdh_prime)
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{
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cnote << "Testing cryptopp_ecdh_prime...";
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using namespace CryptoPP;
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OID curve = ASN1::secp256r1();
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ECDH<ECP>::Domain dhLocal(curve);
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SecByteBlock privLocal(dhLocal.PrivateKeyLength());
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SecByteBlock pubLocal(dhLocal.PublicKeyLength());
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dhLocal.GenerateKeyPair(dev::crypto::PRNG(), privLocal, pubLocal);
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ECDH<ECP>::Domain dhRemote(curve);
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SecByteBlock privRemote(dhRemote.PrivateKeyLength());
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SecByteBlock pubRemote(dhRemote.PublicKeyLength());
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dhRemote.GenerateKeyPair(dev::crypto::PRNG(), privRemote, pubRemote);
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assert(dhLocal.AgreedValueLength() == dhRemote.AgreedValueLength());
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// local: send public to remote; remote: send public to local
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// Local
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SecByteBlock sharedLocal(dhLocal.AgreedValueLength());
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assert(dhLocal.Agree(sharedLocal, privLocal, pubRemote));
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// Remote
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SecByteBlock sharedRemote(dhRemote.AgreedValueLength());
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assert(dhRemote.Agree(sharedRemote, privRemote, pubLocal));
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// Test
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Integer ssLocal, ssRemote;
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ssLocal.Decode(sharedLocal.BytePtr(), sharedLocal.SizeInBytes());
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ssRemote.Decode(sharedRemote.BytePtr(), sharedRemote.SizeInBytes());
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assert(ssLocal != 0);
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assert(ssLocal == ssRemote);
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}
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BOOST_AUTO_TEST_CASE(cryptopp_ecdh_aes128_cbc_noauth)
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{
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// ECDH gives 256-bit shared while aes uses 128-bits
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// Use first 128-bits of shared secret as symmetric key
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// IV is 0
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// New connections require new ECDH keypairs
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}
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BOOST_AUTO_TEST_CASE(cryptopp_eth_fbba)
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{
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// Initial Authentication:
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//
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// New/Known Peer:
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// pubkeyL = knownR? ? myKnown : myECDH
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// pubkeyR = knownR? ? theirKnown : theirECDH
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//
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// Initial message = hmac(k=sha3(shared-secret[128..255]), address(pubkeyL)) || ECIES encrypt(pubkeyR, pubkeyL)
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//
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// Key Exchange (this could occur after handshake messages):
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// If peers do not know each other they will need to exchange public keys.
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//
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// Drop ECDH (this could occur after handshake messages):
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// After authentication and/or key exchange, both sides generate shared key
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// from their 'known' keys and use this to encrypt all future messages.
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//
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// v2: If one side doesn't trust the other then a single-use key maybe sent.
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// This will need to be tracked for future connections; when non-trusting peer
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// wants to trust the other, it can request that it's old, 'new', public key be
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// accepted. And, if the peer *really* doesn't trust the other side, it can request
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// that a new, 'new', public key be accepted.
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//
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// Handshake (all or nothing, padded):
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// All Peers (except blacklisted):
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//
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//
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// New Peer:
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//
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//
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// Known Untrusted Peer:
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//
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//
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// Known Trusted Peer:
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//
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//
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// Blacklisted Peeer:
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// Already dropped by now.
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//
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//
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// MAC:
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// ...
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}
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BOOST_AUTO_TEST_CASE(eth_keypairs)
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{
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cnote << "Testing Crypto...";
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secp256k1_start();
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KeyPair p(Secret(fromHex("3ecb44df2159c26e0f995712d4f39b6f6e499b40749b1cf1246c37f9516cb6a4")));
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BOOST_REQUIRE(p.pub() == Public(fromHex("97466f2b32bc3bb76d4741ae51cd1d8578b48d3f1e68da206d47321aec267ce78549b514e4453d74ef11b0cd5e4e4c364effddac8b51bcfc8de80682f952896f")));
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BOOST_REQUIRE(p.address() == Address(fromHex("8a40bfaa73256b60764c1bf40675a99083efb075")));
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{
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eth::Transaction t;
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t.nonce = 0;
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t.receiveAddress = h160(fromHex("944400f4b88ac9589a0f17ed4671da26bddb668b"));
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t.value = 1000;
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auto rlp = t.rlp(false);
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cnote << RLP(rlp);
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cnote << toHex(rlp);
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cnote << t.sha3(false);
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t.sign(p.secret());
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rlp = t.rlp(true);
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cnote << RLP(rlp);
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cnote << toHex(rlp);
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cnote << t.sha3(true);
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BOOST_REQUIRE(t.sender() == p.address());
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}
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}
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int cryptoTest()
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{
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cnote << "Testing Crypto...";
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secp256k1_start();
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KeyPair p(Secret(fromHex("3ecb44df2159c26e0f995712d4f39b6f6e499b40749b1cf1246c37f9516cb6a4")));
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assert(p.pub() == Public(fromHex("97466f2b32bc3bb76d4741ae51cd1d8578b48d3f1e68da206d47321aec267ce78549b514e4453d74ef11b0cd5e4e4c364effddac8b51bcfc8de80682f952896f")));
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assert(p.address() == Address(fromHex("8a40bfaa73256b60764c1bf40675a99083efb075")));
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{
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eth::Transaction t;
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t.nonce = 0;
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t.receiveAddress = h160(fromHex("944400f4b88ac9589a0f17ed4671da26bddb668b"));
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t.value = 1000;
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auto rlp = t.rlp(false);
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cnote << RLP(rlp);
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cnote << toHex(rlp);
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cnote << t.sha3(false);
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t.sign(p.secret());
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rlp = t.rlp(true);
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cnote << RLP(rlp);
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cnote << toHex(rlp);
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cnote << t.sha3(true);
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assert(t.sender() == p.address());
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}
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#if 0
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// Test transaction.
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bytes tx = fromHex("88005401010101010101010101010101010101010101011f0de0b6b3a76400001ce8d4a5100080181c373130a009ba1f10285d4e659568bfcfec85067855c5a3c150100815dad4ef98fd37cf0593828c89db94bd6c64e210a32ef8956eaa81ea9307194996a3b879441f5d");
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cout << "TX: " << RLP(tx) << endl;
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Transaction t2(tx);
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cout << "SENDER: " << hex << t2.sender() << dec << endl;
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secp256k1_start();
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Transaction t;
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t.nonce = 0;
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t.value = 1; // 1 wei.
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t.receiveAddress = toAddress(sha3("123"));
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bytes sig64 = toBigEndian(t.vrs.r) + toBigEndian(t.vrs.s);
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cout << "SIG: " << sig64.size() << " " << toHex(sig64) << " " << t.vrs.v << endl;
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auto msg = t.rlp(false);
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cout << "TX w/o SIG: " << RLP(msg) << endl;
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cout << "RLP(TX w/o SIG): " << toHex(t.rlpString(false)) << endl;
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std::string hmsg = sha3(t.rlpString(false), false);
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cout << "SHA256(RLP(TX w/o SIG)): 0x" << toHex(hmsg) << endl;
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bytes privkey = sha3Bytes("123");
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{
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bytes pubkey(65);
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int pubkeylen = 65;
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int ret = secp256k1_ecdsa_seckey_verify(privkey.data());
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cout << "SEC: " << dec << ret << " " << toHex(privkey) << endl;
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ret = secp256k1_ecdsa_pubkey_create(pubkey.data(), &pubkeylen, privkey.data(), 1);
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pubkey.resize(pubkeylen);
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int good = secp256k1_ecdsa_pubkey_verify(pubkey.data(), (int)pubkey.size());
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cout << "PUB: " << dec << ret << " " << pubkeylen << " " << toHex(pubkey) << (good ? " GOOD" : " BAD") << endl;
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}
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// Test roundtrip...
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{
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bytes sig(64);
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u256 nonce = 0;
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int v = 0;
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cout << toHex(hmsg) << endl;
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cout << toHex(privkey) << endl;
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cout << hex << nonce << dec << endl;
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int ret = secp256k1_ecdsa_sign_compact((byte const*)hmsg.data(), (int)hmsg.size(), sig.data(), privkey.data(), (byte const*)&nonce, &v);
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cout << "MYSIG: " << dec << ret << " " << sig.size() << " " << toHex(sig) << " " << v << endl;
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bytes pubkey(65);
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int pubkeylen = 65;
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ret = secp256k1_ecdsa_recover_compact((byte const*)hmsg.data(), (int)hmsg.size(), (byte const*)sig.data(), pubkey.data(), &pubkeylen, 0, v);
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pubkey.resize(pubkeylen);
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cout << "MYREC: " << dec << ret << " " << pubkeylen << " " << toHex(pubkey) << endl;
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}
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{
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bytes pubkey(65);
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int pubkeylen = 65;
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int ret = secp256k1_ecdsa_recover_compact((byte const*)hmsg.data(), (int)hmsg.size(), (byte const*)sig64.data(), pubkey.data(), &pubkeylen, 0, (int)t.vrs.v - 27);
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pubkey.resize(pubkeylen);
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cout << "RECPUB: " << dec << ret << " " << pubkeylen << " " << toHex(pubkey) << endl;
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cout << "SENDER: " << hex << toAddress(dev::eth::sha3(bytesConstRef(&pubkey).cropped(1))) << dec << endl;
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}
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#endif
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return 0;
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}
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BOOST_AUTO_TEST_SUITE_END()
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