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Add TakerVerifyOffersAgeWitnessHash to taker protocols

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This commit is contained in:
Manfred Karrer 2017-09-25 09:12:02 -05:00
parent 6d1a40dbd5
commit 4ef8309153
No known key found for this signature in database
GPG key ID: 401250966A6B2C46
5 changed files with 93 additions and 5 deletions
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28
core/src/main/java/io/bisq/core/payment/PaymentAccountAgeWitnessService.java
View file

@ -22,6 +22,7 @@ import io.bisq.common.crypto.Hash;
import io.bisq.common.crypto.KeyRing;
import io.bisq.common.crypto.Sig;
import io.bisq.common.util.Utilities;
import io.bisq.core.payment.payload.PaymentAccountPayload;
import io.bisq.core.trade.Trade;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.ArrayUtils;
@ -46,10 +47,7 @@ public class PaymentAccountAgeWitnessService {
}
public PaymentAccountAgeWitness getPaymentAccountWitness(PaymentAccount paymentAccount, Trade trade) throws CryptoException {
byte[] ageWitnessInputData = paymentAccount.getAgeWitnessInputData();
byte[] salt = paymentAccount.getSalt();
final byte[] combined = ArrayUtils.addAll(ageWitnessInputData, salt);
byte[] hash = Sha256Hash.hash(combined);
byte[] hash = getWitnessHash(paymentAccount);
byte[] signature = Sig.sign(keyRing.getSignatureKeyPair().getPrivate(), hash);
long tradeDate = trade.getTakeOfferDate().getTime();
byte[] hashOfPubKey = Sha256Hash.hash(keyRing.getPubKeyRing().getSignaturePubKeyBytes());
@ -59,6 +57,16 @@ public class PaymentAccountAgeWitnessService {
tradeDate);
}
public byte[] getWitnessHash(PaymentAccount paymentAccount) {
return getWitnessHash(paymentAccount.getPaymentAccountPayload(), paymentAccount.getSalt());
}
public byte[] getWitnessHash(PaymentAccountPayload paymentAccountPayload, byte[] salt) {
byte[] ageWitnessInputData = paymentAccountPayload.getAgeWitnessInputData();
final byte[] combined = ArrayUtils.addAll(ageWitnessInputData, salt);
return Sha256Hash.hash(combined);
}
boolean verifyAgeWitness(byte[] peersAgeWitnessInputData,
PaymentAccountAgeWitness witness,
byte[] peersSalt,
@ -141,4 +149,16 @@ public class PaymentAccountAgeWitnessService {
return false;
}
}
public boolean verifyOffersAccountAgeWitness(PaymentAccountPayload paymentAccountPayload,
byte[] peersSalt,
byte[] offersWitness) {
byte[] witnessHash = getWitnessHash(paymentAccountPayload, peersSalt);
final boolean result = Arrays.equals(witnessHash, offersWitness);
if (!result)
log.warn("witnessHash is not matching peers offersWitness. " +
"witnessHash={}, offersWitness={}", Utilities.bytesAsHexString(witnessHash),
Utilities.bytesAsHexString(offersWitness));
return false;
}
}

2
core/src/main/java/io/bisq/core/trade/protocol/BuyerAsTakerProtocol.java
View file

@ -27,6 +27,7 @@ import io.bisq.core.trade.messages.PayoutTxPublishedMessage;
import io.bisq.core.trade.messages.PublishDepositTxRequest;
import io.bisq.core.trade.messages.TradeMessage;
import io.bisq.core.trade.protocol.tasks.CheckIfPeerIsBanned;
import io.bisq.core.trade.protocol.tasks.taker.TakerVerifyOffersAgeWitnessHash;
import io.bisq.core.trade.protocol.tasks.buyer.BuyerProcessPayoutTxPublishedMessage;
import io.bisq.core.trade.protocol.tasks.buyer.BuyerSendCounterCurrencyTransferStartedMessage;
import io.bisq.core.trade.protocol.tasks.buyer.BuyerSetupPayoutTxListener;
@ -125,6 +126,7 @@ public class BuyerAsTakerProtocol extends TradeProtocol implements BuyerProtocol
TakerProcessPublishDepositTxRequest.class,
CheckIfPeerIsBanned.class,
TakerVerifyMakerAccount.class,
TakerVerifyOffersAgeWitnessHash.class,
TakerVerifyMakerFeePayment.class,
TakerVerifyAndSignContract.class,
BuyerAsTakerSignAndPublishDepositTx.class,

2
core/src/main/java/io/bisq/core/trade/protocol/SellerAsTakerProtocol.java
View file

@ -27,6 +27,7 @@ import io.bisq.core.trade.messages.CounterCurrencyTransferStartedMessage;
import io.bisq.core.trade.messages.PublishDepositTxRequest;
import io.bisq.core.trade.messages.TradeMessage;
import io.bisq.core.trade.protocol.tasks.CheckIfPeerIsBanned;
import io.bisq.core.trade.protocol.tasks.taker.TakerVerifyOffersAgeWitnessHash;
import io.bisq.core.trade.protocol.tasks.seller.SellerBroadcastPayoutTx;
import io.bisq.core.trade.protocol.tasks.seller.SellerProcessCounterCurrencyTransferStartedMessage;
import io.bisq.core.trade.protocol.tasks.seller.SellerSendPayoutTxPublishedMessage;
@ -120,6 +121,7 @@ public class SellerAsTakerProtocol extends TradeProtocol implements SellerProtoc
TakerProcessPublishDepositTxRequest.class,
CheckIfPeerIsBanned.class,
TakerVerifyMakerAccount.class,
TakerVerifyOffersAgeWitnessHash.class,
TakerVerifyMakerFeePayment.class,
TakerVerifyAndSignContract.class,
SellerAsTakerSignAndPublishDepositTx.class,

64
core/src/main/java/io/bisq/core/trade/protocol/tasks/taker/TakerVerifyOffersAgeWitnessHash.java Normal file
View file

@ -0,0 +1,64 @@
/*
* This file is part of Bisq.
*
* Bisq is free software: you can redistribute it and/or modify it
* under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or (at
* your option) any later version.
*
* Bisq 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 Affero General Public
* License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with Bisq. If not, see <http://www.gnu.org/licenses/>.
*/
package io.bisq.core.trade.protocol.tasks.taker;
import io.bisq.common.taskrunner.TaskRunner;
import io.bisq.common.util.Utilities;
import io.bisq.core.offer.OfferPayload;
import io.bisq.core.payment.payload.PaymentAccountPayload;
import io.bisq.core.trade.Trade;
import io.bisq.core.trade.protocol.tasks.TradeTask;
import lombok.extern.slf4j.Slf4j;
import java.util.Map;
import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;
@Slf4j
public class TakerVerifyOffersAgeWitnessHash extends TradeTask {
@SuppressWarnings({"WeakerAccess", "unused"})
public TakerVerifyOffersAgeWitnessHash(TaskRunner taskHandler, Trade trade) {
super(taskHandler, trade);
}
@Override
protected void run() {
try {
runInterceptHook();
final Map<String, String> extraDataMap = trade.getOffer().getExtraDataMap();
final byte[] accountSalt = processModel.getTradingPeer().getAccountSalt();
if (extraDataMap != null &&
extraDataMap.containsKey(OfferPayload.ACCOUNT_AGE_WITNESS) &&
accountSalt != null) {
final String offersWitness = extraDataMap.get(OfferPayload.ACCOUNT_AGE_WITNESS);
final PaymentAccountPayload paymentAccountPayload = checkNotNull(processModel.getTradingPeer().getPaymentAccountPayload()
, "Peers paymentAccountPayload must nto be null");
checkArgument(processModel.getPaymentAccountAgeWitnessService()
.verifyOffersAccountAgeWitness(paymentAccountPayload,
accountSalt,
Utilities.decodeFromHex(offersWitness)), "");
}
complete();
} catch (Throwable t) {
failed(t);
}
}
}

2
core/src/test/java/io/bisq/core/payment/PaymentAccountAgeWitnessServiceTest.java → core/src/test/java/io/bisq/core/payment/PaymentPaymentAccountAgeWitnessServiceTest.java
View file

@ -41,7 +41,7 @@ import static org.junit.Assert.assertTrue;
* along with Bisq. If not, see <http://www.gnu.org/licenses/>.
*/
@Slf4j
public class PaymentAccountAgeWitnessServiceTest {
public class PaymentPaymentAccountAgeWitnessServiceTest {
private PublicKey publicKey;
private KeyPair keypair;