mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
38faf687ae
No post-mine state visible in advance. Additional parts of protocol no longer optional. Protocol version bump. Various GUI improvements. Better (more dynamic) and more correct handling of fee structure.
100 lines
3.4 KiB
C++
100 lines
3.4 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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Foobar 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 Foobar. 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.h>
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#include <Common.h>
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#include <RLP.h>
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#include <Transaction.h>
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using namespace std;
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using namespace eth;
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int cryptoTest()
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{
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// Test transaction.
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bytes tx = fromUserHex("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() << " " << asHex(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): " << asHex(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" << asHex(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 << " " << asHex(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(), pubkey.size());
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cout << "PUB: " << dec << ret << " " << pubkeylen << " " << asHex(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 << asHex(hmsg) << endl;
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cout << asHex(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(), hmsg.size(), sig.data(), privkey.data(), (byte const*)&nonce, &v);
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cout << "MYSIG: " << dec << ret << " " << sig.size() << " " << asHex(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(), 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 << " " << asHex(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(), 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 << " " << asHex(pubkey) << endl;
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cout << "SENDER: " << hex << low160(eth::sha3(bytesConstRef(&pubkey).cropped(1))) << dec << endl;
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}
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return 0;
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}
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