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support uncompressed raw keys for silent payments scans

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This commit is contained in:
Craig Raw 2025-09-18 16:14:42 +02:00
parent 7f707017b7
commit af879a30f1
1 changed files with 16 additions and 1 deletions
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17
src/main/java/com/sparrowwallet/drongo/silentpayments/SilentPaymentUtils.java
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@ -153,6 +153,10 @@ public class SilentPaymentUtils {
}
public static byte[] getTweak(Transaction tx, Map<HashIndex, Script> spentScriptPubKeys) {
return getTweak(tx, spentScriptPubKeys, true);
}
public static byte[] getTweak(Transaction tx, Map<HashIndex, Script> spentScriptPubKeys, boolean compressed) {
if(tx.getOutputs().stream().noneMatch(output -> ScriptType.P2TR.isScriptType(output.getScript()))) {
return null;
}
@ -179,7 +183,7 @@ public class SilentPaymentUtils {
byte[] smallestOutpoint = tx.getInputs().stream().map(input -> input.getOutpoint().bitcoinSerialize()).min(new Utils.LexicographicByteArrayComparator()).orElseThrow();
byte[] inputHash = Utils.taggedHash(BIP_0352_INPUTS_TAG, Utils.concat(smallestOutpoint, combinedPubKey));
return NativeSecp256k1.pubKeyTweakMul(combinedPubKey, inputHash, true);
return NativeSecp256k1.pubKeyTweakMul(combinedPubKey, inputHash, compressed);
} catch(NativeSecp256k1Util.AssertFailException e) {
log.error("Error computing tweak", e);
}
@ -278,4 +282,15 @@ public class SilentPaymentUtils {
Utils.concat(scanPrivateKey.getPrivKeyBytes(), ByteBuffer.allocate(4).order(ByteOrder.BIG_ENDIAN).putInt(labelIndex).array())));
return ECKey.fromPublicOnly(ECKey.publicPointFromPrivate(labelTweak).getEncoded(true));
}
public static byte[] getSecp256k1PubKey(ECKey ecKey) {
return getSecp256k1PubKey(ecKey.getPubKey(false));
}
public static byte[] getSecp256k1PubKey(byte[] uncompressedKey) {
byte[] key = new byte[64];
System.arraycopy(uncompressedKey, 1, key, 32, 32);
System.arraycopy(uncompressedKey, 33, key, 0, 32);
return Utils.reverseBytes(key);
}
}