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Merge pull request #6612 from yonson2023/check_xmr_subaddress

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Validate that XMR subaddress view key matches the main address
This commit is contained in:
Alejandro García 2023-04-03 01:38:39 +00:00 committed by GitHub
commit 00c43196a3
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 59 additions and 7 deletions
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29
core/src/main/java/bisq/core/xmr/knaccc/monero/address/WalletAddress.java
View File

@ -7,6 +7,10 @@ import bisq.core.xmr.org.nem.core.crypto.ed25519.arithmetic.Ed25519EncodedGroupE
import bisq.core.xmr.org.nem.core.crypto.ed25519.arithmetic.Ed25519Group;
import bisq.core.xmr.org.nem.core.crypto.ed25519.arithmetic.Ed25519GroupElement;
import com.google.common.annotations.VisibleForTesting;
import java.util.Arrays;
import static bisq.core.xmr.knaccc.monero.address.ByteUtil.concat;
import static bisq.core.xmr.knaccc.monero.address.ByteUtil.hexToBytes;
import static bisq.core.xmr.knaccc.monero.address.ByteUtil.longToLittleEndianUint32ByteArray;
@ -121,7 +125,30 @@ public class WalletAddress {
}
public String getSubaddressBase58(String privateViewKeyHex, long accountId, long subaddressId) {
public String getSubaddressBase58(String privateViewKeyHex, long accountId, long subaddressId) throws InvalidWalletAddressException {
if (!checkPrivateViewKey(privateViewKeyHex)) {
throw new InvalidWalletAddressException("Wrong private view key for main address");
}
return getSubaddressBase58(new Scalar(privateViewKeyHex), hexToBytes(getPublicSpendKeyHex()), accountId, subaddressId);
}
@VisibleForTesting
boolean checkPrivateViewKey(String privateViewKey) {
return isPrivateKeyReduced(privateViewKey) && doesPrivateKeyResolveToPublicKey(privateViewKey, this.publicViewKeyHex);
}
@VisibleForTesting
static boolean isPrivateKeyReduced(String privateKey) {
byte[] input = hexToBytes(privateKey);
byte[] reduced = CryptoUtil.scReduce32(input);
return Arrays.equals(input, reduced);
}
@VisibleForTesting
static boolean doesPrivateKeyResolveToPublicKey(String privateKey, String publicKey) {
Scalar m = new Scalar(privateKey);
Ed25519GroupElement M = G.scalarMultiply(new Ed25519EncodedFieldElement(m.bytes));
byte[] generatedPubKey = M.encode().getRaw();
return Arrays.equals(generatedPubKey, hexToBytes(publicKey));
}
}

2
core/src/test/java/knaccc/monero/address/CryptoUtilTest.java → core/src/test/java/bisq/core/xmr/knaccc/monero/address/CryptoUtilTest.java
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@ -15,7 +15,7 @@
* along with Bisq. If not, see <http://www.gnu.org/licenses/>.
*/
package knaccc.monero.address;
package bisq.core.xmr.knaccc.monero.address;
import bisq.core.xmr.knaccc.monero.crypto.CryptoUtil;

27
core/src/test/java/knaccc/monero/address/WalletAddressTest.java → core/src/test/java/bisq/core/xmr/knaccc/monero/address/WalletAddressTest.java
View File

@ -15,13 +15,13 @@
* along with Bisq. If not, see <http://www.gnu.org/licenses/>.
*/
package knaccc.monero.address;
import bisq.core.xmr.knaccc.monero.address.WalletAddress;
package bisq.core.xmr.knaccc.monero.address;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.assertFalse;
public class WalletAddressTest {
@Test
@ -30,6 +30,7 @@ public class WalletAddressTest {
WalletAddress walletAddress = new WalletAddress(mainAddress);
String privateViewKeyHex = "7b37d8922245a07244fd31855d1e705a590a9bd2881825f0542ad99cdaba090a";
String publicViewKeyHex = "3cd5a3079e8b4cff3630ce16bfda6eebb2da86169accdb93206a92a58d586faa";
System.out.println("subaddress for account index 0, subaddress index 1: "
+ walletAddress.getSubaddressBase58(privateViewKeyHex, 0, 1));
@ -46,5 +47,25 @@ public class WalletAddressTest {
assertEquals(walletAddress.getSubaddressBase58(privateViewKeyHex, 0, 1), addr01);
assertEquals(walletAddress.getSubaddressBase58(privateViewKeyHex, 1, 0), addr10);
assertEquals(walletAddress.getSubaddressBase58(privateViewKeyHex, 1, 1), addr11);
assertTrue(walletAddress.checkPrivateViewKey(privateViewKeyHex));
assertTrue(WalletAddress.doesPrivateKeyResolveToPublicKey(privateViewKeyHex, publicViewKeyHex));
assertFalse(WalletAddress.doesPrivateKeyResolveToPublicKey(privateViewKeyHex, privateViewKeyHex));
assertTrue(WalletAddress.doesPrivateKeyResolveToPublicKey(
"a82a9017a1d259c71f5392ad9091b743b86dac7a21f5e402ea0a55e5c8a6750f",
"bdc158199c8933353627d54edb4bbae547dbbde3130860d7940313210edca0a6"));
assertTrue(WalletAddress.doesPrivateKeyResolveToPublicKey(
"dae1bceeb2563b8c376f8e0456e5fe7aa3d6291b38ace18c6ad5647424a3b104",
"d17698d07fe9edbc41552299b90a93de73bb1bd4b94b8083af0bbe3a1931e2ec"));
assertFalse(WalletAddress.doesPrivateKeyResolveToPublicKey(
"0000111122223333444455556666777788889999AAAABBBBCCCCDDDDEEEEFFFF",
"0000111122223333444455556666777788889999AAAABBBBCCCCDDDDEEEEFFFF"));
String nonReducedPrivateKey = "680bceef3ca8b2ca1a9a29283c184f6f590a9bd2881825f0542ad99cdaba091a";
assertFalse(WalletAddress.isPrivateKeyReduced(nonReducedPrivateKey));
assertTrue(WalletAddress.isPrivateKeyReduced(privateViewKeyHex));
}
}

10
desktop/src/main/java/bisq/desktop/components/paymentmethods/XmrForm.java
View File

@ -251,6 +251,7 @@ public class XmrForm extends AssetsForm {
xmrAccountDelegate.setPrivateViewKey(privateViewKeyInputTextField.getText());
xmrAccountDelegate.setAccountIndex(accountIndex.getText());
xmrAccountDelegate.setSubAddressIndex(subAddressIndex.getText());
subAddressTextField.getStyleClass().remove("error-text");
if (accountIndex.validate() && subAddressIndex.validate()
&& mainAddressTextField.validate()
&& privateViewKeyInputTextField.validate()
@ -258,10 +259,13 @@ public class XmrForm extends AssetsForm {
&& privateViewKeyInputTextField.getText().length() > 0) {
try {
xmrAccountDelegate.createAndSetNewSubAddress();
} catch (Exception ex) {
log.warn(ex.toString());
}
subAddressTextField.setText(xmrAccountDelegate.getSubAddress());
} catch (Exception ex) {
log.warn(ex.getMessage());
String[] parts = ex.getMessage().split(":");
subAddressTextField.setText(parts.length > 0 ? parts[parts.length-1] : ex.getMessage());
subAddressTextField.getStyleClass().add("error-text");
}
} else {
xmrAccountDelegate.setSubAddress("");
subAddressTextField.setText("");