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Merge branch 'develop' into develop-evmcc

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Conflicts:
	windows/LibEthereum.vcxproj.filters
This commit is contained in:
Paweł Bylica 2014-11-17 09:48:13 +01:00
commit 578a0391cd
2 changed files with 133 additions and 203 deletions
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51
TestHelperCrypto.h
View File

@ -1,51 +0,0 @@
/*
This file is part of cpp-ethereum.
cpp-ethereum is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
cpp-ethereum 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file TestHelperCrypto.h
* @author Alex Leverington <nessence@gmail.com>
* @date 2014
*/
#pragma once
#include <libdevcrypto/CryptoPP.h>
using namespace std;
using namespace CryptoPP;
void SavePrivateKey(const PrivateKey& key, const string& file = "ecies.private.key")
{
FileSink sink(file.c_str());
key.Save(sink);
}
void SavePublicKey(const PublicKey& key, const string& file = "ecies.public.key")
{
FileSink sink(file.c_str());
key.Save(sink);
}
void LoadPrivateKey(PrivateKey& key, const string& file = "ecies.private.key")
{
FileSource source(file.c_str(), true);
key.Load(source);
}
void LoadPublicKey(PublicKey& key, const string& file = "ecies.public.key")
{
FileSource source(file.c_str(), true);
key.Load(source);
}

285
crypto.cpp
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@ -27,9 +27,9 @@
#include <libdevcore/Log.h>
#include <libethereum/Transaction.h>
#include <boost/test/unit_test.hpp>
#include <libdevcrypto/EC.h>
#include <libdevcrypto/SHA3MAC.h>
#include "TestHelperCrypto.h"
#include <libdevcrypto/SHA3.h>
#include <libdevcrypto/ECDHE.h>
#include <libdevcrypto/CryptoPP.h>
using namespace std;
using namespace dev;
@ -38,9 +38,24 @@ using namespace CryptoPP;
BOOST_AUTO_TEST_SUITE(devcrypto)
static Secp256k1 s_secp256k1;
static CryptoPP::AutoSeededRandomPool s_rng;
static CryptoPP::OID s_curveOID(CryptoPP::ASN1::secp256k1());
static CryptoPP::DL_GroupParameters_EC<CryptoPP::ECP> s_params(s_curveOID);
static CryptoPP::DL_GroupParameters_EC<CryptoPP::ECP>::EllipticCurve s_curve(s_params.GetCurve());
BOOST_AUTO_TEST_CASE(verify_secert)
{
h256 empty;
KeyPair kNot(empty);
BOOST_REQUIRE(!kNot.address());
KeyPair k(sha3(empty));
BOOST_REQUIRE(k.address());
}
BOOST_AUTO_TEST_CASE(common_encrypt_decrypt)
{
string message("Now is the time for all good persons to come to the aide of humanity.");
string message("Now is the time for all good persons to come to the aid of humanity.");
bytes m = asBytes(message);
bytesConstRef bcr(&m);
@ -56,103 +71,50 @@ BOOST_AUTO_TEST_CASE(common_encrypt_decrypt)
BOOST_REQUIRE(plain == asBytes(message));
}
BOOST_AUTO_TEST_CASE(cryptopp_vs_secp256k1)
{
ECIES<ECP>::Decryptor d(pp::PRNG, pp::secp256k1Curve);
ECIES<ECP>::Encryptor e(d.GetKey());
Secret s;
pp::exportPrivateKey(d.GetKey(), s);
Public p;
pp::exportPublicKey(e.GetKey(), p);
BOOST_REQUIRE(dev::toAddress(s) == right160(dev::sha3(p.ref())));
Secret previous = s;
for (auto i = 0; i < 2; i++)
{
ECIES<ECP>::Decryptor d(pp::PRNG, pp::secp256k1Curve);
ECIES<ECP>::Encryptor e(d.GetKey());
Secret s;
pp::exportPrivateKey(d.GetKey(), s);
BOOST_REQUIRE(s != previous);
Public p;
pp::exportPublicKey(e.GetKey(), p);
h160 secp256k1Addr = dev::toAddress(s);
h160 cryptoppAddr = right160(dev::sha3(p.ref()));
if (secp256k1Addr != cryptoppAddr)
{
BOOST_REQUIRE(secp256k1Addr == cryptoppAddr);
break;
}
}
}
BOOST_AUTO_TEST_CASE(cryptopp_cryptopp_secp256k1libport)
{
// cryptopp implementation of secp256k1lib sign_compact w/recid parameter and recovery of public key from signature
secp256k1_start();
// base secret
Secret secret(sha3("privacy"));
// we get ec params from signer
const CryptoPP::DL_GroupParameters_EC<CryptoPP::ECP> params = pp::secp256k1Params;
ECDSA<ECP, SHA3_256>::Signer signer;
// e := sha3(msg)
bytes e(fromHex("0x01"));
e.resize(32);
int tests = 2; // Oct 29: successful @ 1500
int tests = 2;
while (sha3(&e, &e), secret = sha3(secret.asBytes()), tests--)
{
KeyPair key(secret);
Public pkey = key.pub();
pp::initializeDLScheme(secret, signer);
signer.AccessKey().Initialize(s_params, secretToExponent(secret));
h256 he(sha3(e));
Integer heInt(he.asBytes().data(), 32);
h256 k(crypto::kdf(secret, he));
Integer kInt(k.asBytes().data(), 32);
kInt %= params.GetSubgroupOrder()-1;
kInt %= s_params.GetSubgroupOrder()-1;
ECP::Point rp = params.ExponentiateBase(kInt);
Integer const& q = params.GetGroupOrder();
Integer r = params.ConvertElementToInteger(rp);
int recid = ((r >= q) ? 2 : 0) | (rp.y.IsOdd() ? 1 : 0);
ECP::Point rp = s_params.ExponentiateBase(kInt);
Integer const& q = s_params.GetGroupOrder();
Integer r = s_params.ConvertElementToInteger(rp);
Integer kInv = kInt.InverseMod(q);
Integer s = (kInv * (Integer(secret.asBytes().data(), 32)*r + heInt)) % q;
BOOST_REQUIRE(!!r && !!s);
/*
// For future reference:
// According to maths, this codepath can't be reached, however, it's in secp256k1.
// Commenting this out diverges from codebase implementation.
// To be removed after upstream PR and proof are evaulated.
if (s > params.GetSubgroupOrder())
{
// note: this rarely happens
s = params.GetGroupOrder() - s;
if (recid)
recid ^= 1;
}
*/
Signature sig;
sig[64] = rp.y.IsOdd() ? 1 : 0;
r.Encode(sig.data(), 32);
s.Encode(sig.data() + 32, 32);
sig[64] = recid;
Public p = dev::recover(sig, he);
BOOST_REQUIRE(p == pkey);
// verify w/cryptopp
BOOST_REQUIRE(crypto::verify(pkey, sig, bytesConstRef(&e)));
BOOST_REQUIRE(s_secp256k1.verify(pkey, sig, bytesConstRef(&e)));
// verify with secp256k1lib
byte encpub[65] = {0x04};
@ -166,16 +128,18 @@ BOOST_AUTO_TEST_CASE(cryptopp_cryptopp_secp256k1libport)
BOOST_AUTO_TEST_CASE(cryptopp_ecdsa_sipaseckp256k1)
{
secp256k1_start();
// cryptopp integer encoding
Integer nHex("f2ee15ea639b73fa3db9b34a245bdfa015c260c598b211bf05a1ecc4b3e3b4f2H");
Integer nB(fromHex("f2ee15ea639b73fa3db9b34a245bdfa015c260c598b211bf05a1ecc4b3e3b4f2").data(), 32);
BOOST_REQUIRE(nHex == nB);
bytes sbytes(fromHex("0x01"));
Secret secret(sha3(sbytes)); // 5fe7f977e71dba2ea1a68e21057beebb9be2ac30c6410aa38d4f3fbe41dcffd2
bytes sbytes(fromHex("0xFFFF"));
Secret secret(sha3(sbytes));
KeyPair key(secret);
bytes m(fromHex("0x01"));
bytes m(1, 0xff);
int tests = 2;
while (m[0]++, tests--)
{
@ -183,45 +147,45 @@ BOOST_AUTO_TEST_CASE(cryptopp_ecdsa_sipaseckp256k1)
Integer hInt(hm.asBytes().data(), 32);
h256 k(hm ^ key.sec());
Integer kInt(k.asBytes().data(), 32);
// raw sign w/cryptopp (doesn't pass through cryptopp hash filter)
ECDSA<ECP, SHA3_256>::Signer signer;
pp::initializeDLScheme(key.sec(), signer);
signer.AccessKey().Initialize(s_params, secretToExponent(key.sec()));
Integer r, s;
signer.RawSign(kInt, hInt, r, s);
// verify cryptopp raw-signature w/cryptopp
ECDSA<ECP, SHA3_256>::Verifier verifier;
pp::initializeDLScheme(key.pub(), verifier);
verifier.AccessKey().Initialize(s_params, publicToPoint(key.pub()));
Signature sigppraw;
r.Encode(sigppraw.data(), 32);
s.Encode(sigppraw.data() + 32, 32);
BOOST_REQUIRE(verifier.VerifyMessage(m.data(), m.size(), sigppraw.data(), 64));
BOOST_REQUIRE(crypto::verify(key.pub(), sigppraw, bytesConstRef(&m)));
// BOOST_REQUIRE(crypto::verify(key.pub(), sigppraw, bytesConstRef(&m)));
BOOST_REQUIRE(dev::verify(key.pub(), sigppraw, hm));
// sign with cryptopp, verify, recover w/sec256lib
Signature seclibsig(dev::sign(key.sec(), hm));
BOOST_REQUIRE(verifier.VerifyMessage(m.data(), m.size(), seclibsig.data(), 64));
BOOST_REQUIRE(crypto::verify(key.pub(), seclibsig, bytesConstRef(&m)));
// BOOST_REQUIRE(crypto::verify(key.pub(), seclibsig, bytesConstRef(&m)));
BOOST_REQUIRE(dev::verify(key.pub(), seclibsig, hm));
BOOST_REQUIRE(dev::recover(seclibsig, hm) == key.pub());
// sign with cryptopp (w/hash filter?), verify with cryptopp
bytes sigppb(signer.MaxSignatureLength());
size_t ssz = signer.SignMessage(pp::PRNG, m.data(), m.size(), sigppb.data());
size_t ssz = signer.SignMessage(s_rng, m.data(), m.size(), sigppb.data());
Signature sigpp;
memcpy(sigpp.data(), sigppb.data(), 64);
BOOST_REQUIRE(verifier.VerifyMessage(m.data(), m.size(), sigppb.data(), ssz));
BOOST_REQUIRE(crypto::verify(key.pub(), sigpp, bytesConstRef(&m)));
// BOOST_REQUIRE(crypto::verify(key.pub(), sigpp, bytesConstRef(&m)));
BOOST_REQUIRE(dev::verify(key.pub(), sigpp, hm));
// sign with cryptopp and stringsource hash filter
string sigstr;
StringSource ssrc(asString(m), true, new SignerFilter(pp::PRNG, signer, new StringSink(sigstr)));
StringSource ssrc(asString(m), true, new SignerFilter(s_rng, signer, new StringSink(sigstr)));
FixedHash<sizeof(Signature)> retsig((byte const*)sigstr.data(), Signature::ConstructFromPointer);
BOOST_REQUIRE(verifier.VerifyMessage(m.data(), m.size(), retsig.data(), 64));
BOOST_REQUIRE(crypto::verify(key.pub(), retsig, bytesConstRef(&m)));
// BOOST_REQUIRE(crypto::verify(key.pub(), retsig, bytesConstRef(&m)));
BOOST_REQUIRE(dev::verify(key.pub(), retsig, hm));
/// verification w/sec256lib
@ -247,37 +211,94 @@ BOOST_AUTO_TEST_CASE(cryptopp_ecdsa_sipaseckp256k1)
}
}
BOOST_AUTO_TEST_CASE(cryptopp_public_export_import)
{
ECIES<ECP>::Decryptor d(pp::PRNG, pp::secp256k1Curve);
ECIES<ECP>::Encryptor e(d.GetKey());
Secret s;
pp::exportPrivateKey(d.GetKey(), s);
Public p;
pp::exportPublicKey(e.GetKey(), p);
Address addr = right160(dev::sha3(p.ref()));
BOOST_REQUIRE(toAddress(s) == addr);
KeyPair l(s);
BOOST_REQUIRE(l.address() == addr);
}
BOOST_AUTO_TEST_CASE(ecies_eckeypair)
{
KeyPair k = KeyPair::create();
string message("Now is the time for all good persons to come to the aide of humanity.");
string message("Now is the time for all good persons to come to the aid of humanity.");
string original = message;
bytes b = asBytes(message);
encrypt(k.pub(), b);
s_secp256k1.encrypt(k.pub(), b);
BOOST_REQUIRE(b != asBytes(original));
decrypt(k.sec(), b);
s_secp256k1.decrypt(k.sec(), b);
BOOST_REQUIRE(b == asBytes(original));
}
BOOST_AUTO_TEST_CASE(ecdh)
{
cnote << "Testing ecdh...";
ECDH<ECP>::Domain dhLocal(s_curveOID);
SecByteBlock privLocal(dhLocal.PrivateKeyLength());
SecByteBlock pubLocal(dhLocal.PublicKeyLength());
dhLocal.GenerateKeyPair(s_rng, privLocal, pubLocal);
ECDH<ECP>::Domain dhRemote(s_curveOID);
SecByteBlock privRemote(dhRemote.PrivateKeyLength());
SecByteBlock pubRemote(dhRemote.PublicKeyLength());
dhRemote.GenerateKeyPair(s_rng, privRemote, pubRemote);
assert(dhLocal.AgreedValueLength() == dhRemote.AgreedValueLength());
// local: send public to remote; remote: send public to local
// Local
SecByteBlock sharedLocal(dhLocal.AgreedValueLength());
assert(dhLocal.Agree(sharedLocal, privLocal, pubRemote));
// Remote
SecByteBlock sharedRemote(dhRemote.AgreedValueLength());
assert(dhRemote.Agree(sharedRemote, privRemote, pubLocal));
// Test
Integer ssLocal, ssRemote;
ssLocal.Decode(sharedLocal.BytePtr(), sharedLocal.SizeInBytes());
ssRemote.Decode(sharedRemote.BytePtr(), sharedRemote.SizeInBytes());
assert(ssLocal != 0);
assert(ssLocal == ssRemote);
// Now use our keys
KeyPair a = KeyPair::create();
byte puba[65] = {0x04};
memcpy(&puba[1], a.pub().data(), 64);
KeyPair b = KeyPair::create();
byte pubb[65] = {0x04};
memcpy(&pubb[1], b.pub().data(), 64);
ECDH<ECP>::Domain dhA(s_curveOID);
Secret shared;
BOOST_REQUIRE(dhA.Agree(shared.data(), a.sec().data(), pubb));
BOOST_REQUIRE(shared);
}
BOOST_AUTO_TEST_CASE(ecdhe)
{
cnote << "Testing ecdhe...";
ECDHE a, b;
BOOST_CHECK_NE(a.pubkey(), b.pubkey());
ECDHE local;
ECDHE remote;
// local tx pubkey -> remote
Secret sremote;
remote.agree(local.pubkey(), sremote);
// remote tx pbukey -> local
Secret slocal;
local.agree(remote.pubkey(), slocal);
BOOST_REQUIRE(sremote);
BOOST_REQUIRE(slocal);
BOOST_REQUIRE_EQUAL(sremote, slocal);
}
BOOST_AUTO_TEST_CASE(ecdhe_aes128_ctr_sha3mac)
{
// New connections require new ECDH keypairs
@ -288,53 +309,6 @@ BOOST_AUTO_TEST_CASE(ecdhe_aes128_ctr_sha3mac)
}
BOOST_AUTO_TEST_CASE(cryptopp_ecies_message)
{
cnote << "Testing cryptopp_ecies_message...";
string const message("Now is the time for all good persons to come to the aide of humanity.");
ECIES<ECP>::Decryptor localDecryptor(pp::PRNG, pp::secp256k1Curve);
SavePrivateKey(localDecryptor.GetPrivateKey());
ECIES<ECP>::Encryptor localEncryptor(localDecryptor);
SavePublicKey(localEncryptor.GetPublicKey());
ECIES<ECP>::Decryptor futureDecryptor;
LoadPrivateKey(futureDecryptor.AccessPrivateKey());
futureDecryptor.GetPrivateKey().ThrowIfInvalid(pp::PRNG, 3);
ECIES<ECP>::Encryptor futureEncryptor;
LoadPublicKey(futureEncryptor.AccessPublicKey());
futureEncryptor.GetPublicKey().ThrowIfInvalid(pp::PRNG, 3);
// encrypt/decrypt with local
string cipherLocal;
StringSource ss1 (message, true, new PK_EncryptorFilter(pp::PRNG, localEncryptor, new StringSink(cipherLocal) ) );
string plainLocal;
StringSource ss2 (cipherLocal, true, new PK_DecryptorFilter(pp::PRNG, localDecryptor, new StringSink(plainLocal) ) );
// encrypt/decrypt with future
string cipherFuture;
StringSource ss3 (message, true, new PK_EncryptorFilter(pp::PRNG, futureEncryptor, new StringSink(cipherFuture) ) );
string plainFuture;
StringSource ss4 (cipherFuture, true, new PK_DecryptorFilter(pp::PRNG, futureDecryptor, new StringSink(plainFuture) ) );
// decrypt local w/future
string plainFutureFromLocal;
StringSource ss5 (cipherLocal, true, new PK_DecryptorFilter(pp::PRNG, futureDecryptor, new StringSink(plainFutureFromLocal) ) );
// decrypt future w/local
string plainLocalFromFuture;
StringSource ss6 (cipherFuture, true, new PK_DecryptorFilter(pp::PRNG, localDecryptor, new StringSink(plainLocalFromFuture) ) );
BOOST_REQUIRE(plainLocal == message);
BOOST_REQUIRE(plainFuture == plainLocal);
BOOST_REQUIRE(plainFutureFromLocal == plainLocal);
BOOST_REQUIRE(plainLocalFromFuture == plainLocal);
}
BOOST_AUTO_TEST_CASE(cryptopp_aes128_ctr)
{
const int aesKeyLen = 16;
@ -346,21 +320,28 @@ BOOST_AUTO_TEST_CASE(cryptopp_aes128_ctr)
rng.GenerateBlock(key, key.size());
// cryptopp uses IV as nonce/counter which is same as using nonce w/0 ctr
byte ctr[AES::BLOCKSIZE];
rng.GenerateBlock(ctr, sizeof(ctr));
FixedHash<AES::BLOCKSIZE> ctr;
rng.GenerateBlock(ctr.data(), sizeof(ctr));
// used for decrypt
FixedHash<AES::BLOCKSIZE> ctrcopy(ctr);
string text = "Now is the time for all good persons to come to the aide of humanity.";
// c++11 ftw
string text = "Now is the time for all good persons to come to the aid of humanity.";
unsigned char const* in = (unsigned char*)&text[0];
unsigned char* out = (unsigned char*)&text[0];
string original = text;
string doublespeak = text + text;
string cipherCopy;
try
{
CTR_Mode<AES>::Encryption e;
e.SetKeyWithIV(key, key.size(), ctr);
e.SetKeyWithIV(key, key.size(), ctr.data());
// 68 % 255 should be difference of counter
e.ProcessData(out, in, text.size());
ctr = h128(u128(ctr) + text.size() % 16);
BOOST_REQUIRE(text != original);
cipherCopy = text;
}
@ -372,7 +353,7 @@ BOOST_AUTO_TEST_CASE(cryptopp_aes128_ctr)
try
{
CTR_Mode< AES >::Decryption d;
d.SetKeyWithIV(key, key.size(), ctr);
d.SetKeyWithIV(key, key.size(), ctrcopy.data());
d.ProcessData(out, in, text.size());
BOOST_REQUIRE(text == original);
}
@ -390,7 +371,7 @@ BOOST_AUTO_TEST_CASE(cryptopp_aes128_ctr)
out = (unsigned char*)&cipherCopy[0];
CTR_Mode<AES>::Encryption e;
e.SetKeyWithIV(key, key.size(), ctr);
e.SetKeyWithIV(key, key.size(), ctrcopy.data());
e.ProcessData(out, in, text.size());
// yep, ctr mode.