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Clean code and remove debug logs from ECKey.java

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This commit is contained in:
Toporin 2023-09-06 10:18:32 +01:00
parent 77901915b7
commit 2c2db1d644
1 changed files with 8 additions and 86 deletions
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92
src/main/java/com/sparrowwallet/drongo/crypto/ECKey.java
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@ -307,7 +307,9 @@ public class ECKey {
return pub.getEncoded();
}
// SATOCHIP
/**
* Gets the raw public key value in compressed or uncompressed form. This is needed by Satochip
*/
public byte[] getPubKey(Boolean compressed) {
return pub.getEncoded(compressed);
}
@ -433,39 +435,17 @@ public class ECKey {
return verify(sigHash.getBytes(), signature);
}
public ECKey getTweakedOutputKey() {
log.debug("SATOCHIP ECKey getTweakedOutputKey START");
public ECKey getTweakedOutputKeyNEW() {
TaprootPubKey taprootPubKey = liftX(getPubKeyXCoord());
log.debug("SATOCHIP ECKey getTweakedOutputKey taprootPubKey: " + taprootPubKey);
log.debug("SATOCHIP ECKey getTweakedOutputKey taprootPubKey.ecPoint: " + taprootPubKey.ecPoint);
ECPoint internalKey = taprootPubKey.ecPoint;
log.debug("SATOCHIP ECKey getTweakedOutputKey internalKey: " + internalKey);
//debug
ECKey tmp2 = ECKey.fromPublicOnly(internalKey, true);
log.debug("SATOCHIP ECKey getTweakedOutputKey internalKey: " + Utils.bytesToHex(tmp2.getPubKey()));
//endbug
byte[] taggedHash = Utils.taggedHash("TapTweak", internalKey.getXCoord().getEncoded());
ECKey tweakValue = ECKey.fromPrivate(taggedHash);
log.debug("SATOCHIP ECKey getTweakedOutputKey tweakValue: " + Utils.bytesToHex(tweakValue.getPubKey()));
ECPoint outputKey = internalKey.add(tweakValue.getPubKeyPoint());
log.debug("SATOCHIP ECKey getTweakedOutputKey outputKey: " + outputKey);
//debug
ECKey tmp = ECKey.fromPublicOnly(outputKey, true);
log.debug("SATOCHIP ECKey getTweakedOutputKey outputKey: " + Utils.bytesToHex(tmp.getPubKey()));
//endbug
if(hasPrivKey()) {
log.debug("SATOCHIP ECKey getTweakedOutputKey PRIVKEY NEW VERSION");
// isEven => used to determine private key for tweaking
// see taproot_tweak_seckey(seckey0, h) in
// https://github.com/bitcoin/bips/blob/master/bip-0341.mediawiki#constructing-and-spending-taproot-outputs
Boolean isEven = (getPubKey()[0] == 0x02);
log.debug("SATOCHIP ECKey getTweakedOutputKey getPubKey(): " + Utils.bytesToHex(getPubKey()));
log.debug("SATOCHIP ECKey getTweakedOutputKey isEven getPubKey()[0]: " + getPubKey()[0]);
log.debug("SATOCHIP ECKey getTweakedOutputKey isEven: " + isEven);
BigInteger taprootPriv;
if (isEven){
taprootPriv = priv;
@ -474,78 +454,20 @@ public class ECKey {
}
BigInteger tweakedPrivKey = taprootPriv.add(tweakValue.getPrivKey()).mod(CURVE_PARAMS.getCurve().getOrder());
//debug
ECKey tmp3 = new ECKey(tweakedPrivKey, outputKey, true);
log.debug("SATOCHIP ECKey getTweakedOutputKey outputKey with private: " + Utils.bytesToHex(tmp3.getPubKey()));
log.debug("SATOCHIP ECKey getTweakedOutputKey outputKey private: " + tmp3.getPrivKey());
//endbug
/* log.debug("SATOCHIP ECKey getTweakedOutputKey PRIVKEY NEW VERSION SWITCH EVENNESS");
if (isEven){
//taprootPriv = priv;
taprootPriv = CURVE_PARAMS.getCurve().getOrder().subtract(priv);
} else {
taprootPriv = priv;
//taprootPriv = CURVE_PARAMS.getCurve().getOrder().subtract(priv);
}
tweakedPrivKey = taprootPriv.add(tweakValue.getPrivKey()).mod(CURVE_PARAMS.getCurve().getOrder());
//debug
ECKey tmp5 = new ECKey(tweakedPrivKey, outputKey, true);
log.debug("SATOCHIP ECKey getTweakedOutputKey outputKey with private: " + Utils.bytesToHex(tmp5.getPubKey()));
log.debug("SATOCHIP ECKey getTweakedOutputKey outputKey private: " + tmp5.getPrivKey());
//endbug*/
/* // ORIGNAL VERSION
log.debug("SATOCHIP ECKey getTweakedOutputKey PRIVKEY OLD VERSION");
taprootPriv = priv;
tweakedPrivKey = taprootPriv.add(tweakValue.getPrivKey()).mod(CURVE_PARAMS.getCurve().getOrder());
//TODO: Improve on this hack. How do we know whether to negate the private key before tweaking it?
if(!ECKey.fromPrivate(tweakedPrivKey).getPubKeyPoint().equals(outputKey)) {
taprootPriv = CURVE_PARAMS.getCurve().getOrder().subtract(priv);
tweakedPrivKey = taprootPriv.add(tweakValue.getPrivKey()).mod(CURVE_PARAMS.getCurve().getOrder());
}
//debug
ECKey tmp4 = new ECKey(tweakedPrivKey, outputKey, true);
log.debug("SATOCHIP ECKey getTweakedOutputKey outputKey with private: " + Utils.bytesToHex(tmp4.getPubKey()));
log.debug("SATOCHIP ECKey getTweakedOutputKey outputKey private: " + tmp4.getPrivKey());
//endbug*/
return new ECKey(tweakedPrivKey, outputKey, true);
}
return ECKey.fromPublicOnly(outputKey, true);
}
public ECKey getTweakedOutputKeyOLD() {
log.debug("SATOCHIP ECKey getTweakedOutputKey START");
public ECKey getTweakedOutputKey() {
TaprootPubKey taprootPubKey = liftX(getPubKeyXCoord());
log.debug("SATOCHIP ECKey getTweakedOutputKey taprootPubKey: " + taprootPubKey);
log.debug("SATOCHIP ECKey getTweakedOutputKey taprootPubKey.ecPoint: " + taprootPubKey.ecPoint);
ECPoint internalKey = taprootPubKey.ecPoint;
log.debug("SATOCHIP ECKey getTweakedOutputKey internalKey: " + internalKey);
//debug
ECKey tmp2 = ECKey.fromPublicOnly(internalKey, true);
log.debug("SATOCHIP ECKey getTweakedOutputKey outputKey: " + Utils.bytesToHex(tmp2.getPubKey()));
//endbug
byte[] taggedHash = Utils.taggedHash("TapTweak", internalKey.getXCoord().getEncoded());
ECKey tweakValue = ECKey.fromPrivate(taggedHash);
log.debug("SATOCHIP ECKey getTweakedOutputKey tweakValue: " + Utils.bytesToHex(tweakValue.getPubKey()));
ECPoint outputKey = internalKey.add(tweakValue.getPubKeyPoint());
log.debug("SATOCHIP ECKey getTweakedOutputKey outputKey: " + outputKey);
//debug
ECKey tmp = ECKey.fromPublicOnly(outputKey, true);
log.debug("SATOCHIP ECKey getTweakedOutputKey outputKey: " + Utils.bytesToHex(tmp.getPubKey()));
//endbug
if(hasPrivKey()) {
log.debug("SATOCHIP ECKey getTweakedOutputKey hasPrivKey(): true");
BigInteger taprootPriv = priv;
BigInteger tweakedPrivKey = taprootPriv.add(tweakValue.getPrivKey()).mod(CURVE_PARAMS.getCurve().getOrder());
//TODO: Improve on this hack. How do we know whether to negate the private key before tweaking it?