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support parsing of op_checksigadd and taproot control block

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This commit is contained in:
Craig Raw 2024-02-28 10:26:44 +02:00
parent d2621eb87d
commit 0e1766a709
2 changed files with 14 additions and 2 deletions
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14
src/main/java/com/sparrowwallet/drongo/protocol/ScriptChunk.java
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@ -11,6 +11,7 @@ import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import java.util.Arrays;
import java.util.Objects;
import java.util.stream.IntStream;
import static com.sparrowwallet.drongo.protocol.ScriptOpCodes.*;
@ -150,7 +151,7 @@ public class ScriptChunk {
return false;
}
if(isSignature() || isPubKey()) {
if(isSignature() || isPubKey() || isTaprootControlBlock()) {
return false;
}
@ -180,13 +181,22 @@ public class ScriptChunk {
return false;
}
return ECKey.isPubKeyCanonical(data);
return ECKey.isPubKeyCanonical(data) && !IntStream.range(0, data.length).mapToObj(i -> data[i]).allMatch(b -> b == 0);
}
public ECKey getPubKey() {
return ECKey.fromPublicOnly(data);
}
public boolean isTaprootControlBlock() {
if(data == null || data.length == 0 || (data.length - 1) % 32 != 0) {
return false;
}
//Test for BIP341 leaf version and both parity options
return ((data[0] & 0xff) == 0xc0 || (data[0] & 0xff) == 0xc1);
}
public byte[] toByteArray() {
ByteArrayOutputStream stream = new ByteArrayOutputStream();
try {

2
src/main/java/com/sparrowwallet/drongo/protocol/ScriptOpCodes.java
View file

@ -161,6 +161,7 @@ public class ScriptOpCodes {
public static final int OP_NOP8 = 0xb7;
public static final int OP_NOP9 = 0xb8;
public static final int OP_NOP10 = 0xb9;
public static final int OP_CHECKSIGADD = 0xba;
public static final int OP_INVALIDOPCODE = 0xff;
private static final Map<Integer, String> opCodeNameMap;
@ -269,6 +270,7 @@ public class ScriptOpCodes {
opCodeNameMap.put(OP_CHECKSIGVERIFY, "CHECKSIGVERIFY");
opCodeNameMap.put(OP_CHECKMULTISIG, "CHECKMULTISIG");
opCodeNameMap.put(OP_CHECKMULTISIGVERIFY, "CHECKMULTISIGVERIFY");
opCodeNameMap.put(OP_CHECKSIGADD, "CHECKSIGADD");
opCodeNameMap.put(OP_NOP1, "NOP1");
opCodeNameMap.put(OP_CHECKLOCKTIMEVERIFY, "CHECKLOCKTIMEVERIFY");
opCodeNameMap.put(OP_CHECKSEQUENCEVERIFY, "CHECKSEQUENCEVERIFY");