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-rw-r--r--src/java/org/bitcoin/NativeSecp256k1.java472
-rw-r--r--src/java/org/bitcoin/NativeSecp256k1Test.java247
-rw-r--r--src/java/org/bitcoin/NativeSecp256k1Util.java45
-rw-r--r--src/java/org/bitcoin/Secp256k1Context.java51
-rw-r--r--src/java/org_bitcoin_NativeSecp256k1.c412
-rw-r--r--src/java/org_bitcoin_NativeSecp256k1.h112
-rw-r--r--src/java/org_bitcoin_Secp256k1Context.c15
-rw-r--r--src/java/org_bitcoin_Secp256k1Context.h22
8 files changed, 1334 insertions, 42 deletions
diff --git a/src/java/org/bitcoin/NativeSecp256k1.java b/src/java/org/bitcoin/NativeSecp256k1.java
index 90a498eaa2..be67048fbe 100644
--- a/src/java/org/bitcoin/NativeSecp256k1.java
+++ b/src/java/org/bitcoin/NativeSecp256k1.java
@@ -1,60 +1,478 @@
+/*
+ * Copyright 2013 Google Inc.
+ * Copyright 2014-2016 the libsecp256k1 contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
package org.bitcoin;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
+import java.math.BigInteger;
import com.google.common.base.Preconditions;
-
+import java.util.concurrent.locks.Lock;
+import java.util.concurrent.locks.ReentrantReadWriteLock;
+import static org.bitcoin.NativeSecp256k1Util.*;
/**
- * This class holds native methods to handle ECDSA verification.
- * You can find an example library that can be used for this at
- * https://github.com/sipa/secp256k1
+ * <p>This class holds native methods to handle ECDSA verification.</p>
+ *
+ * <p>You can find an example library that can be used for this at https://github.com/bitcoin/secp256k1</p>
+ *
+ * <p>To build secp256k1 for use with bitcoinj, run
+ * `./configure --enable-jni --enable-experimental --enable-module-schnorr --enable-module-ecdh`
+ * and `make` then copy `.libs/libsecp256k1.so` to your system library path
+ * or point the JVM to the folder containing it with -Djava.library.path
+ * </p>
*/
public class NativeSecp256k1 {
- public static final boolean enabled;
- static {
- boolean isEnabled = true;
- try {
- System.loadLibrary("javasecp256k1");
- } catch (UnsatisfiedLinkError e) {
- isEnabled = false;
- }
- enabled = isEnabled;
- }
-
+
+ private static final ReentrantReadWriteLock rwl = new ReentrantReadWriteLock();
+ private static final Lock r = rwl.readLock();
+ private static final Lock w = rwl.writeLock();
private static ThreadLocal<ByteBuffer> nativeECDSABuffer = new ThreadLocal<ByteBuffer>();
/**
* Verifies the given secp256k1 signature in native code.
* Calling when enabled == false is undefined (probably library not loaded)
- *
+ *
* @param data The data which was signed, must be exactly 32 bytes
* @param signature The signature
* @param pub The public key which did the signing
*/
- public static boolean verify(byte[] data, byte[] signature, byte[] pub) {
+ public static boolean verify(byte[] data, byte[] signature, byte[] pub) throws AssertFailException{
Preconditions.checkArgument(data.length == 32 && signature.length <= 520 && pub.length <= 520);
ByteBuffer byteBuff = nativeECDSABuffer.get();
- if (byteBuff == null) {
- byteBuff = ByteBuffer.allocateDirect(32 + 8 + 520 + 520);
+ if (byteBuff == null || byteBuff.capacity() < 520) {
+ byteBuff = ByteBuffer.allocateDirect(520);
byteBuff.order(ByteOrder.nativeOrder());
nativeECDSABuffer.set(byteBuff);
}
byteBuff.rewind();
byteBuff.put(data);
- byteBuff.putInt(signature.length);
- byteBuff.putInt(pub.length);
byteBuff.put(signature);
byteBuff.put(pub);
- return secp256k1_ecdsa_verify(byteBuff) == 1;
+
+ byte[][] retByteArray;
+
+ r.lock();
+ try {
+ return secp256k1_ecdsa_verify(byteBuff, Secp256k1Context.getContext(), signature.length, pub.length) == 1;
+ } finally {
+ r.unlock();
+ }
+ }
+
+ /**
+ * libsecp256k1 Create an ECDSA signature.
+ *
+ * @param data Message hash, 32 bytes
+ * @param key Secret key, 32 bytes
+ *
+ * Return values
+ * @param sig byte array of signature
+ */
+ public static byte[] sign(byte[] data, byte[] sec) throws AssertFailException{
+ Preconditions.checkArgument(data.length == 32 && sec.length <= 32);
+
+ ByteBuffer byteBuff = nativeECDSABuffer.get();
+ if (byteBuff == null || byteBuff.capacity() < 32 + 32) {
+ byteBuff = ByteBuffer.allocateDirect(32 + 32);
+ byteBuff.order(ByteOrder.nativeOrder());
+ nativeECDSABuffer.set(byteBuff);
+ }
+ byteBuff.rewind();
+ byteBuff.put(data);
+ byteBuff.put(sec);
+
+ byte[][] retByteArray;
+
+ r.lock();
+ try {
+ retByteArray = secp256k1_ecdsa_sign(byteBuff, Secp256k1Context.getContext());
+ } finally {
+ r.unlock();
+ }
+
+ byte[] sigArr = retByteArray[0];
+ int sigLen = new BigInteger(new byte[] { retByteArray[1][0] }).intValue();
+ int retVal = new BigInteger(new byte[] { retByteArray[1][1] }).intValue();
+
+ assertEquals(sigArr.length, sigLen, "Got bad signature length.");
+
+ return retVal == 0 ? new byte[0] : sigArr;
+ }
+
+ /**
+ * libsecp256k1 Seckey Verify - returns 1 if valid, 0 if invalid
+ *
+ * @param seckey ECDSA Secret key, 32 bytes
+ */
+ public static boolean secKeyVerify(byte[] seckey) {
+ Preconditions.checkArgument(seckey.length == 32);
+
+ ByteBuffer byteBuff = nativeECDSABuffer.get();
+ if (byteBuff == null || byteBuff.capacity() < seckey.length) {
+ byteBuff = ByteBuffer.allocateDirect(seckey.length);
+ byteBuff.order(ByteOrder.nativeOrder());
+ nativeECDSABuffer.set(byteBuff);
+ }
+ byteBuff.rewind();
+ byteBuff.put(seckey);
+
+ r.lock();
+ try {
+ return secp256k1_ec_seckey_verify(byteBuff,Secp256k1Context.getContext()) == 1;
+ } finally {
+ r.unlock();
+ }
+ }
+
+
+ /**
+ * libsecp256k1 Compute Pubkey - computes public key from secret key
+ *
+ * @param seckey ECDSA Secret key, 32 bytes
+ *
+ * Return values
+ * @param pubkey ECDSA Public key, 33 or 65 bytes
+ */
+ //TODO add a 'compressed' arg
+ public static byte[] computePubkey(byte[] seckey) throws AssertFailException{
+ Preconditions.checkArgument(seckey.length == 32);
+
+ ByteBuffer byteBuff = nativeECDSABuffer.get();
+ if (byteBuff == null || byteBuff.capacity() < seckey.length) {
+ byteBuff = ByteBuffer.allocateDirect(seckey.length);
+ byteBuff.order(ByteOrder.nativeOrder());
+ nativeECDSABuffer.set(byteBuff);
+ }
+ byteBuff.rewind();
+ byteBuff.put(seckey);
+
+ byte[][] retByteArray;
+
+ r.lock();
+ try {
+ retByteArray = secp256k1_ec_pubkey_create(byteBuff, Secp256k1Context.getContext());
+ } finally {
+ r.unlock();
+ }
+
+ byte[] pubArr = retByteArray[0];
+ int pubLen = new BigInteger(new byte[] { retByteArray[1][0] }).intValue();
+ int retVal = new BigInteger(new byte[] { retByteArray[1][1] }).intValue();
+
+ assertEquals(pubArr.length, pubLen, "Got bad pubkey length.");
+
+ return retVal == 0 ? new byte[0]: pubArr;
+ }
+
+ /**
+ * libsecp256k1 Cleanup - This destroys the secp256k1 context object
+ * This should be called at the end of the program for proper cleanup of the context.
+ */
+ public static synchronized void cleanup() {
+ w.lock();
+ try {
+ secp256k1_destroy_context(Secp256k1Context.getContext());
+ } finally {
+ w.unlock();
+ }
+ }
+
+ public static long cloneContext() {
+ r.lock();
+ try {
+ return secp256k1_ctx_clone(Secp256k1Context.getContext());
+ } finally { r.unlock(); }
+ }
+
+ /**
+ * libsecp256k1 PrivKey Tweak-Mul - Tweak privkey by multiplying to it
+ *
+ * @param tweak some bytes to tweak with
+ * @param seckey 32-byte seckey
+ */
+ public static byte[] privKeyTweakMul(byte[] privkey, byte[] tweak) throws AssertFailException{
+ Preconditions.checkArgument(privkey.length == 32);
+
+ ByteBuffer byteBuff = nativeECDSABuffer.get();
+ if (byteBuff == null || byteBuff.capacity() < privkey.length + tweak.length) {
+ byteBuff = ByteBuffer.allocateDirect(privkey.length + tweak.length);
+ byteBuff.order(ByteOrder.nativeOrder());
+ nativeECDSABuffer.set(byteBuff);
+ }
+ byteBuff.rewind();
+ byteBuff.put(privkey);
+ byteBuff.put(tweak);
+
+ byte[][] retByteArray;
+ r.lock();
+ try {
+ retByteArray = secp256k1_privkey_tweak_mul(byteBuff,Secp256k1Context.getContext());
+ } finally {
+ r.unlock();
+ }
+
+ byte[] privArr = retByteArray[0];
+
+ int privLen = (byte) new BigInteger(new byte[] { retByteArray[1][0] }).intValue() & 0xFF;
+ int retVal = new BigInteger(new byte[] { retByteArray[1][1] }).intValue();
+
+ assertEquals(privArr.length, privLen, "Got bad pubkey length.");
+
+ assertEquals(retVal, 1, "Failed return value check.");
+
+ return privArr;
}
/**
- * @param byteBuff signature format is byte[32] data,
- * native-endian int signatureLength, native-endian int pubkeyLength,
- * byte[signatureLength] signature, byte[pubkeyLength] pub
- * @returns 1 for valid signature, anything else for invalid
+ * libsecp256k1 PrivKey Tweak-Add - Tweak privkey by adding to it
+ *
+ * @param tweak some bytes to tweak with
+ * @param seckey 32-byte seckey
*/
- private static native int secp256k1_ecdsa_verify(ByteBuffer byteBuff);
+ public static byte[] privKeyTweakAdd(byte[] privkey, byte[] tweak) throws AssertFailException{
+ Preconditions.checkArgument(privkey.length == 32);
+
+ ByteBuffer byteBuff = nativeECDSABuffer.get();
+ if (byteBuff == null || byteBuff.capacity() < privkey.length + tweak.length) {
+ byteBuff = ByteBuffer.allocateDirect(privkey.length + tweak.length);
+ byteBuff.order(ByteOrder.nativeOrder());
+ nativeECDSABuffer.set(byteBuff);
+ }
+ byteBuff.rewind();
+ byteBuff.put(privkey);
+ byteBuff.put(tweak);
+
+ byte[][] retByteArray;
+ r.lock();
+ try {
+ retByteArray = secp256k1_privkey_tweak_add(byteBuff,Secp256k1Context.getContext());
+ } finally {
+ r.unlock();
+ }
+
+ byte[] privArr = retByteArray[0];
+
+ int privLen = (byte) new BigInteger(new byte[] { retByteArray[1][0] }).intValue() & 0xFF;
+ int retVal = new BigInteger(new byte[] { retByteArray[1][1] }).intValue();
+
+ assertEquals(privArr.length, privLen, "Got bad pubkey length.");
+
+ assertEquals(retVal, 1, "Failed return value check.");
+
+ return privArr;
+ }
+
+ /**
+ * libsecp256k1 PubKey Tweak-Add - Tweak pubkey by adding to it
+ *
+ * @param tweak some bytes to tweak with
+ * @param pubkey 32-byte seckey
+ */
+ public static byte[] pubKeyTweakAdd(byte[] pubkey, byte[] tweak) throws AssertFailException{
+ Preconditions.checkArgument(pubkey.length == 33 || pubkey.length == 65);
+
+ ByteBuffer byteBuff = nativeECDSABuffer.get();
+ if (byteBuff == null || byteBuff.capacity() < pubkey.length + tweak.length) {
+ byteBuff = ByteBuffer.allocateDirect(pubkey.length + tweak.length);
+ byteBuff.order(ByteOrder.nativeOrder());
+ nativeECDSABuffer.set(byteBuff);
+ }
+ byteBuff.rewind();
+ byteBuff.put(pubkey);
+ byteBuff.put(tweak);
+
+ byte[][] retByteArray;
+ r.lock();
+ try {
+ retByteArray = secp256k1_pubkey_tweak_add(byteBuff,Secp256k1Context.getContext(), pubkey.length);
+ } finally {
+ r.unlock();
+ }
+
+ byte[] pubArr = retByteArray[0];
+
+ int pubLen = (byte) new BigInteger(new byte[] { retByteArray[1][0] }).intValue() & 0xFF;
+ int retVal = new BigInteger(new byte[] { retByteArray[1][1] }).intValue();
+
+ assertEquals(pubArr.length, pubLen, "Got bad pubkey length.");
+
+ assertEquals(retVal, 1, "Failed return value check.");
+
+ return pubArr;
+ }
+
+ /**
+ * libsecp256k1 PubKey Tweak-Mul - Tweak pubkey by multiplying to it
+ *
+ * @param tweak some bytes to tweak with
+ * @param pubkey 32-byte seckey
+ */
+ public static byte[] pubKeyTweakMul(byte[] pubkey, byte[] tweak) throws AssertFailException{
+ Preconditions.checkArgument(pubkey.length == 33 || pubkey.length == 65);
+
+ ByteBuffer byteBuff = nativeECDSABuffer.get();
+ if (byteBuff == null || byteBuff.capacity() < pubkey.length + tweak.length) {
+ byteBuff = ByteBuffer.allocateDirect(pubkey.length + tweak.length);
+ byteBuff.order(ByteOrder.nativeOrder());
+ nativeECDSABuffer.set(byteBuff);
+ }
+ byteBuff.rewind();
+ byteBuff.put(pubkey);
+ byteBuff.put(tweak);
+
+ byte[][] retByteArray;
+ r.lock();
+ try {
+ retByteArray = secp256k1_pubkey_tweak_mul(byteBuff,Secp256k1Context.getContext(), pubkey.length);
+ } finally {
+ r.unlock();
+ }
+
+ byte[] pubArr = retByteArray[0];
+
+ int pubLen = (byte) new BigInteger(new byte[] { retByteArray[1][0] }).intValue() & 0xFF;
+ int retVal = new BigInteger(new byte[] { retByteArray[1][1] }).intValue();
+
+ assertEquals(pubArr.length, pubLen, "Got bad pubkey length.");
+
+ assertEquals(retVal, 1, "Failed return value check.");
+
+ return pubArr;
+ }
+
+ /**
+ * libsecp256k1 create ECDH secret - constant time ECDH calculation
+ *
+ * @param seckey byte array of secret key used in exponentiaion
+ * @param pubkey byte array of public key used in exponentiaion
+ */
+ public static byte[] createECDHSecret(byte[] seckey, byte[] pubkey) throws AssertFailException{
+ Preconditions.checkArgument(seckey.length <= 32 && pubkey.length <= 65);
+
+ ByteBuffer byteBuff = nativeECDSABuffer.get();
+ if (byteBuff == null || byteBuff.capacity() < 32 + pubkey.length) {
+ byteBuff = ByteBuffer.allocateDirect(32 + pubkey.length);
+ byteBuff.order(ByteOrder.nativeOrder());
+ nativeECDSABuffer.set(byteBuff);
+ }
+ byteBuff.rewind();
+ byteBuff.put(seckey);
+ byteBuff.put(pubkey);
+
+ byte[][] retByteArray;
+ r.lock();
+ try {
+ retByteArray = secp256k1_ecdh(byteBuff, Secp256k1Context.getContext(), pubkey.length);
+ } finally {
+ r.unlock();
+ }
+
+ byte[] resArr = retByteArray[0];
+ int retVal = new BigInteger(new byte[] { retByteArray[1][0] }).intValue();
+
+ assertEquals(resArr.length, 32, "Got bad result length.");
+ assertEquals(retVal, 1, "Failed return value check.");
+
+ return resArr;
+ }
+
+ /**
+ * libsecp256k1 randomize - updates the context randomization
+ *
+ * @param seed 32-byte random seed
+ */
+ public static synchronized boolean randomize(byte[] seed) throws AssertFailException{
+ Preconditions.checkArgument(seed.length == 32 || seed == null);
+
+ ByteBuffer byteBuff = nativeECDSABuffer.get();
+ if (byteBuff == null || byteBuff.capacity() < seed.length) {
+ byteBuff = ByteBuffer.allocateDirect(seed.length);
+ byteBuff.order(ByteOrder.nativeOrder());
+ nativeECDSABuffer.set(byteBuff);
+ }
+ byteBuff.rewind();
+ byteBuff.put(seed);
+
+ w.lock();
+ try {
+ return secp256k1_context_randomize(byteBuff, Secp256k1Context.getContext()) == 1;
+ } finally {
+ w.unlock();
+ }
+ }
+
+ public static byte[] schnorrSign(byte[] data, byte[] sec) throws AssertFailException {
+ Preconditions.checkArgument(data.length == 32 && sec.length <= 32);
+
+ ByteBuffer byteBuff = nativeECDSABuffer.get();
+ if (byteBuff == null) {
+ byteBuff = ByteBuffer.allocateDirect(32 + 32);
+ byteBuff.order(ByteOrder.nativeOrder());
+ nativeECDSABuffer.set(byteBuff);
+ }
+ byteBuff.rewind();
+ byteBuff.put(data);
+ byteBuff.put(sec);
+
+ byte[][] retByteArray;
+
+ r.lock();
+ try {
+ retByteArray = secp256k1_schnorr_sign(byteBuff, Secp256k1Context.getContext());
+ } finally {
+ r.unlock();
+ }
+
+ byte[] sigArr = retByteArray[0];
+ int retVal = new BigInteger(new byte[] { retByteArray[1][0] }).intValue();
+
+ assertEquals(sigArr.length, 64, "Got bad signature length.");
+
+ return retVal == 0 ? new byte[0] : sigArr;
+ }
+
+ private static native long secp256k1_ctx_clone(long context);
+
+ private static native int secp256k1_context_randomize(ByteBuffer byteBuff, long context);
+
+ private static native byte[][] secp256k1_privkey_tweak_add(ByteBuffer byteBuff, long context);
+
+ private static native byte[][] secp256k1_privkey_tweak_mul(ByteBuffer byteBuff, long context);
+
+ private static native byte[][] secp256k1_pubkey_tweak_add(ByteBuffer byteBuff, long context, int pubLen);
+
+ private static native byte[][] secp256k1_pubkey_tweak_mul(ByteBuffer byteBuff, long context, int pubLen);
+
+ private static native void secp256k1_destroy_context(long context);
+
+ private static native int secp256k1_ecdsa_verify(ByteBuffer byteBuff, long context, int sigLen, int pubLen);
+
+ private static native byte[][] secp256k1_ecdsa_sign(ByteBuffer byteBuff, long context);
+
+ private static native int secp256k1_ec_seckey_verify(ByteBuffer byteBuff, long context);
+
+ private static native byte[][] secp256k1_ec_pubkey_create(ByteBuffer byteBuff, long context);
+
+ private static native byte[][] secp256k1_ec_pubkey_parse(ByteBuffer byteBuff, long context, int inputLen);
+
+ private static native byte[][] secp256k1_schnorr_sign(ByteBuffer byteBuff, long context);
+
+ private static native byte[][] secp256k1_ecdh(ByteBuffer byteBuff, long context, int inputLen);
+
}
diff --git a/src/java/org/bitcoin/NativeSecp256k1Test.java b/src/java/org/bitcoin/NativeSecp256k1Test.java
new file mode 100644
index 0000000000..f18ce95810
--- /dev/null
+++ b/src/java/org/bitcoin/NativeSecp256k1Test.java
@@ -0,0 +1,247 @@
+package org.bitcoin;
+
+import com.google.common.io.BaseEncoding;
+import java.util.Arrays;
+import java.math.BigInteger;
+import javax.xml.bind.DatatypeConverter;
+import static org.bitcoin.NativeSecp256k1Util.*;
+
+/**
+ * This class holds test cases defined for testing this library.
+ */
+public class NativeSecp256k1Test {
+
+ //TODO improve comments/add more tests
+ /**
+ * This tests verify() for a valid signature
+ */
+ public static void testVerifyPos() throws AssertFailException{
+ boolean result = false;
+ byte[] data = BaseEncoding.base16().lowerCase().decode("CF80CD8AED482D5D1527D7DC72FCEFF84E6326592848447D2DC0B0E87DFC9A90".toLowerCase()); //sha256hash of "testing"
+ byte[] sig = BaseEncoding.base16().lowerCase().decode("3044022079BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F817980220294F14E883B3F525B5367756C2A11EF6CF84B730B36C17CB0C56F0AAB2C98589".toLowerCase());
+ byte[] pub = BaseEncoding.base16().lowerCase().decode("040A629506E1B65CD9D2E0BA9C75DF9C4FED0DB16DC9625ED14397F0AFC836FAE595DC53F8B0EFE61E703075BD9B143BAC75EC0E19F82A2208CAEB32BE53414C40".toLowerCase());
+
+ result = NativeSecp256k1.verify( data, sig, pub);
+ assertEquals( result, true , "testVerifyPos");
+ }
+
+ /**
+ * This tests verify() for a non-valid signature
+ */
+ public static void testVerifyNeg() throws AssertFailException{
+ boolean result = false;
+ byte[] data = BaseEncoding.base16().lowerCase().decode("CF80CD8AED482D5D1527D7DC72FCEFF84E6326592848447D2DC0B0E87DFC9A91".toLowerCase()); //sha256hash of "testing"
+ byte[] sig = BaseEncoding.base16().lowerCase().decode("3044022079BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F817980220294F14E883B3F525B5367756C2A11EF6CF84B730B36C17CB0C56F0AAB2C98589".toLowerCase());
+ byte[] pub = BaseEncoding.base16().lowerCase().decode("040A629506E1B65CD9D2E0BA9C75DF9C4FED0DB16DC9625ED14397F0AFC836FAE595DC53F8B0EFE61E703075BD9B143BAC75EC0E19F82A2208CAEB32BE53414C40".toLowerCase());
+
+ result = NativeSecp256k1.verify( data, sig, pub);
+ //System.out.println(" TEST " + new BigInteger(1, resultbytes).toString(16));
+ assertEquals( result, false , "testVerifyNeg");
+ }
+
+ /**
+ * This tests secret key verify() for a valid secretkey
+ */
+ public static void testSecKeyVerifyPos() throws AssertFailException{
+ boolean result = false;
+ byte[] sec = BaseEncoding.base16().lowerCase().decode("67E56582298859DDAE725F972992A07C6C4FB9F62A8FFF58CE3CA926A1063530".toLowerCase());
+
+ result = NativeSecp256k1.secKeyVerify( sec );
+ //System.out.println(" TEST " + new BigInteger(1, resultbytes).toString(16));
+ assertEquals( result, true , "testSecKeyVerifyPos");
+ }
+
+ /**
+ * This tests secret key verify() for a invalid secretkey
+ */
+ public static void testSecKeyVerifyNeg() throws AssertFailException{
+ boolean result = false;
+ byte[] sec = BaseEncoding.base16().lowerCase().decode("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF".toLowerCase());
+
+ result = NativeSecp256k1.secKeyVerify( sec );
+ //System.out.println(" TEST " + new BigInteger(1, resultbytes).toString(16));
+ assertEquals( result, false , "testSecKeyVerifyNeg");
+ }
+
+ /**
+ * This tests public key create() for a valid secretkey
+ */
+ public static void testPubKeyCreatePos() throws AssertFailException{
+ byte[] sec = BaseEncoding.base16().lowerCase().decode("67E56582298859DDAE725F972992A07C6C4FB9F62A8FFF58CE3CA926A1063530".toLowerCase());
+
+ byte[] resultArr = NativeSecp256k1.computePubkey( sec);
+ String pubkeyString = javax.xml.bind.DatatypeConverter.printHexBinary(resultArr);
+ assertEquals( pubkeyString , "04C591A8FF19AC9C4E4E5793673B83123437E975285E7B442F4EE2654DFFCA5E2D2103ED494718C697AC9AEBCFD19612E224DB46661011863ED2FC54E71861E2A6" , "testPubKeyCreatePos");
+ }
+
+ /**
+ * This tests public key create() for a invalid secretkey
+ */
+ public static void testPubKeyCreateNeg() throws AssertFailException{
+ byte[] sec = BaseEncoding.base16().lowerCase().decode("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF".toLowerCase());
+
+ byte[] resultArr = NativeSecp256k1.computePubkey( sec);
+ String pubkeyString = javax.xml.bind.DatatypeConverter.printHexBinary(resultArr);
+ assertEquals( pubkeyString, "" , "testPubKeyCreateNeg");
+ }
+
+ /**
+ * This tests sign() for a valid secretkey
+ */
+ public static void testSignPos() throws AssertFailException{
+
+ byte[] data = BaseEncoding.base16().lowerCase().decode("CF80CD8AED482D5D1527D7DC72FCEFF84E6326592848447D2DC0B0E87DFC9A90".toLowerCase()); //sha256hash of "testing"
+ byte[] sec = BaseEncoding.base16().lowerCase().decode("67E56582298859DDAE725F972992A07C6C4FB9F62A8FFF58CE3CA926A1063530".toLowerCase());
+
+ byte[] resultArr = NativeSecp256k1.sign(data, sec);
+ String sigString = javax.xml.bind.DatatypeConverter.printHexBinary(resultArr);
+ assertEquals( sigString, "30440220182A108E1448DC8F1FB467D06A0F3BB8EA0533584CB954EF8DA112F1D60E39A202201C66F36DA211C087F3AF88B50EDF4F9BDAA6CF5FD6817E74DCA34DB12390C6E9" , "testSignPos");
+ }
+
+ /**
+ * This tests sign() for a invalid secretkey
+ */
+ public static void testSignNeg() throws AssertFailException{
+ byte[] data = BaseEncoding.base16().lowerCase().decode("CF80CD8AED482D5D1527D7DC72FCEFF84E6326592848447D2DC0B0E87DFC9A90".toLowerCase()); //sha256hash of "testing"
+ byte[] sec = BaseEncoding.base16().lowerCase().decode("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF".toLowerCase());
+
+ byte[] resultArr = NativeSecp256k1.sign(data, sec);
+ String sigString = javax.xml.bind.DatatypeConverter.printHexBinary(resultArr);
+ assertEquals( sigString, "" , "testSignNeg");
+ }
+
+ /**
+ * This tests private key tweak-add
+ */
+ public static void testPrivKeyTweakAdd_1() throws AssertFailException {
+ byte[] sec = BaseEncoding.base16().lowerCase().decode("67E56582298859DDAE725F972992A07C6C4FB9F62A8FFF58CE3CA926A1063530".toLowerCase());
+ byte[] data = BaseEncoding.base16().lowerCase().decode("3982F19BEF1615BCCFBB05E321C10E1D4CBA3DF0E841C2E41EEB6016347653C3".toLowerCase()); //sha256hash of "tweak"
+
+ byte[] resultArr = NativeSecp256k1.privKeyTweakAdd( sec , data );
+ String sigString = javax.xml.bind.DatatypeConverter.printHexBinary(resultArr);
+ assertEquals( sigString , "A168571E189E6F9A7E2D657A4B53AE99B909F7E712D1C23CED28093CD57C88F3" , "testPrivKeyAdd_1");
+ }
+
+ /**
+ * This tests private key tweak-mul
+ */
+ public static void testPrivKeyTweakMul_1() throws AssertFailException {
+ byte[] sec = BaseEncoding.base16().lowerCase().decode("67E56582298859DDAE725F972992A07C6C4FB9F62A8FFF58CE3CA926A1063530".toLowerCase());
+ byte[] data = BaseEncoding.base16().lowerCase().decode("3982F19BEF1615BCCFBB05E321C10E1D4CBA3DF0E841C2E41EEB6016347653C3".toLowerCase()); //sha256hash of "tweak"
+
+ byte[] resultArr = NativeSecp256k1.privKeyTweakMul( sec , data );
+ String sigString = javax.xml.bind.DatatypeConverter.printHexBinary(resultArr);
+ assertEquals( sigString , "97F8184235F101550F3C71C927507651BD3F1CDB4A5A33B8986ACF0DEE20FFFC" , "testPrivKeyMul_1");
+ }
+
+ /**
+ * This tests private key tweak-add uncompressed
+ */
+ public static void testPrivKeyTweakAdd_2() throws AssertFailException {
+ byte[] pub = BaseEncoding.base16().lowerCase().decode("040A629506E1B65CD9D2E0BA9C75DF9C4FED0DB16DC9625ED14397F0AFC836FAE595DC53F8B0EFE61E703075BD9B143BAC75EC0E19F82A2208CAEB32BE53414C40".toLowerCase());
+ byte[] data = BaseEncoding.base16().lowerCase().decode("3982F19BEF1615BCCFBB05E321C10E1D4CBA3DF0E841C2E41EEB6016347653C3".toLowerCase()); //sha256hash of "tweak"
+
+ byte[] resultArr = NativeSecp256k1.pubKeyTweakAdd( pub , data );
+ String sigString = javax.xml.bind.DatatypeConverter.printHexBinary(resultArr);
+ assertEquals( sigString , "0411C6790F4B663CCE607BAAE08C43557EDC1A4D11D88DFCB3D841D0C6A941AF525A268E2A863C148555C48FB5FBA368E88718A46E205FABC3DBA2CCFFAB0796EF" , "testPrivKeyAdd_2");
+ }
+
+ /**
+ * This tests private key tweak-mul uncompressed
+ */
+ public static void testPrivKeyTweakMul_2() throws AssertFailException {
+ byte[] pub = BaseEncoding.base16().lowerCase().decode("040A629506E1B65CD9D2E0BA9C75DF9C4FED0DB16DC9625ED14397F0AFC836FAE595DC53F8B0EFE61E703075BD9B143BAC75EC0E19F82A2208CAEB32BE53414C40".toLowerCase());
+ byte[] data = BaseEncoding.base16().lowerCase().decode("3982F19BEF1615BCCFBB05E321C10E1D4CBA3DF0E841C2E41EEB6016347653C3".toLowerCase()); //sha256hash of "tweak"
+
+ byte[] resultArr = NativeSecp256k1.pubKeyTweakMul( pub , data );
+ String sigString = javax.xml.bind.DatatypeConverter.printHexBinary(resultArr);
+ assertEquals( sigString , "04E0FE6FE55EBCA626B98A807F6CAF654139E14E5E3698F01A9A658E21DC1D2791EC060D4F412A794D5370F672BC94B722640B5F76914151CFCA6E712CA48CC589" , "testPrivKeyMul_2");
+ }
+
+ /**
+ * This tests seed randomization
+ */
+ public static void testRandomize() throws AssertFailException {
+ byte[] seed = BaseEncoding.base16().lowerCase().decode("A441B15FE9A3CF56661190A0B93B9DEC7D04127288CC87250967CF3B52894D11".toLowerCase()); //sha256hash of "random"
+ boolean result = NativeSecp256k1.randomize(seed);
+ assertEquals( result, true, "testRandomize");
+ }
+
+ /**
+ * This tests signSchnorr() for a valid secretkey
+ */
+ public static void testSchnorrSign() throws AssertFailException{
+
+ byte[] data = BaseEncoding.base16().lowerCase().decode("CF80CD8AED482D5D1527D7DC72FCEFF84E6326592848447D2DC0B0E87DFC9A90".toLowerCase()); //sha256hash of "testing"
+ byte[] sec = BaseEncoding.base16().lowerCase().decode("67E56582298859DDAE725F972992A07C6C4FB9F62A8FFF58CE3CA926A1063530".toLowerCase());
+
+ byte[] resultArr = NativeSecp256k1.schnorrSign(data, sec);
+ String sigString = javax.xml.bind.DatatypeConverter.printHexBinary(resultArr);
+ assertEquals( sigString, "C5E929AA058B982048760422D3B563749B7D0E50C5EBD8CD2FFC23214BD6A2F1B072C13880997EBA847CF20F2F90FCE07C1CA33A890A4127095A351127F8D95F" , "testSchnorrSign");
+ }
+
+ /**
+ * This tests signSchnorr() for a valid secretkey
+ */
+ public static void testCreateECDHSecret() throws AssertFailException{
+
+ byte[] sec = BaseEncoding.base16().lowerCase().decode("67E56582298859DDAE725F972992A07C6C4FB9F62A8FFF58CE3CA926A1063530".toLowerCase());
+ byte[] pub = BaseEncoding.base16().lowerCase().decode("040A629506E1B65CD9D2E0BA9C75DF9C4FED0DB16DC9625ED14397F0AFC836FAE595DC53F8B0EFE61E703075BD9B143BAC75EC0E19F82A2208CAEB32BE53414C40".toLowerCase());
+
+ byte[] resultArr = NativeSecp256k1.createECDHSecret(sec, pub);
+ String ecdhString = javax.xml.bind.DatatypeConverter.printHexBinary(resultArr);
+ assertEquals( ecdhString, "2A2A67007A926E6594AF3EB564FC74005B37A9C8AEF2033C4552051B5C87F043" , "testCreateECDHSecret");
+ }
+
+ public static void main(String[] args) throws AssertFailException{
+
+
+ System.out.println("\n libsecp256k1 enabled: " + Secp256k1Context.isEnabled() + "\n");
+
+ assertEquals( Secp256k1Context.isEnabled(), true, "isEnabled" );
+
+ //Test verify() success/fail
+ testVerifyPos();
+ testVerifyNeg();
+
+ //Test secKeyVerify() success/fail
+ testSecKeyVerifyPos();
+ testSecKeyVerifyNeg();
+
+ //Test computePubkey() success/fail
+ testPubKeyCreatePos();
+ testPubKeyCreateNeg();
+
+ //Test sign() success/fail
+ testSignPos();
+ testSignNeg();
+
+ //Test Schnorr (partial support) //TODO
+ testSchnorrSign();
+ //testSchnorrVerify
+ //testSchnorrRecovery
+
+ //Test privKeyTweakAdd() 1
+ testPrivKeyTweakAdd_1();
+
+ //Test privKeyTweakMul() 2
+ testPrivKeyTweakMul_1();
+
+ //Test privKeyTweakAdd() 3
+ testPrivKeyTweakAdd_2();
+
+ //Test privKeyTweakMul() 4
+ testPrivKeyTweakMul_2();
+
+ //Test randomize()
+ testRandomize();
+
+ //Test ECDH
+ testCreateECDHSecret();
+
+ NativeSecp256k1.cleanup();
+
+ System.out.println(" All tests passed." );
+
+ }
+}
diff --git a/src/java/org/bitcoin/NativeSecp256k1Util.java b/src/java/org/bitcoin/NativeSecp256k1Util.java
new file mode 100644
index 0000000000..04732ba044
--- /dev/null
+++ b/src/java/org/bitcoin/NativeSecp256k1Util.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2014-2016 the libsecp256k1 contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.bitcoin;
+
+public class NativeSecp256k1Util{
+
+ public static void assertEquals( int val, int val2, String message ) throws AssertFailException{
+ if( val != val2 )
+ throw new AssertFailException("FAIL: " + message);
+ }
+
+ public static void assertEquals( boolean val, boolean val2, String message ) throws AssertFailException{
+ if( val != val2 )
+ throw new AssertFailException("FAIL: " + message);
+ else
+ System.out.println("PASS: " + message);
+ }
+
+ public static void assertEquals( String val, String val2, String message ) throws AssertFailException{
+ if( !val.equals(val2) )
+ throw new AssertFailException("FAIL: " + message);
+ else
+ System.out.println("PASS: " + message);
+ }
+
+ public static class AssertFailException extends Exception {
+ public AssertFailException(String message) {
+ super( message );
+ }
+ }
+}
diff --git a/src/java/org/bitcoin/Secp256k1Context.java b/src/java/org/bitcoin/Secp256k1Context.java
new file mode 100644
index 0000000000..216c986a8b
--- /dev/null
+++ b/src/java/org/bitcoin/Secp256k1Context.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2014-2016 the libsecp256k1 contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.bitcoin;
+
+/**
+ * This class holds the context reference used in native methods
+ * to handle ECDSA operations.
+ */
+public class Secp256k1Context {
+ private static final boolean enabled; //true if the library is loaded
+ private static final long context; //ref to pointer to context obj
+
+ static { //static initializer
+ boolean isEnabled = true;
+ long contextRef = -1;
+ try {
+ System.loadLibrary("secp256k1");
+ contextRef = secp256k1_init_context();
+ } catch (UnsatisfiedLinkError e) {
+ System.out.println("UnsatisfiedLinkError: " + e.toString());
+ isEnabled = false;
+ }
+ enabled = isEnabled;
+ context = contextRef;
+ }
+
+ public static boolean isEnabled() {
+ return enabled;
+ }
+
+ public static long getContext() {
+ if(!enabled) return -1; //sanity check
+ return context;
+ }
+
+ private static native long secp256k1_init_context();
+}
diff --git a/src/java/org_bitcoin_NativeSecp256k1.c b/src/java/org_bitcoin_NativeSecp256k1.c
index bb4cd70728..dba9524dd4 100644
--- a/src/java/org_bitcoin_NativeSecp256k1.c
+++ b/src/java/org_bitcoin_NativeSecp256k1.c
@@ -1,23 +1,411 @@
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
#include "org_bitcoin_NativeSecp256k1.h"
#include "include/secp256k1.h"
+#include "include/secp256k1_ecdh.h"
+#include "include/secp256k1_recovery.h"
+#include "include/secp256k1_schnorr.h"
-JNIEXPORT jint JNICALL Java_org_bitcoin_NativeSecp256k1_secp256k1_1ecdsa_1verify
- (JNIEnv* env, jclass classObject, jobject byteBufferObject)
+
+SECP256K1_API jlong JNICALL Java_org_bitcoin_NativeSecp256k1_secp256k1_1ctx_1clone
+ (JNIEnv* env, jclass classObject, jlong ctx_l)
+{
+ const secp256k1_context *ctx = (secp256k1_context*)(uintptr_t)ctx_l;
+
+ jlong ctx_clone_l = (uintptr_t) secp256k1_context_clone(ctx);
+
+ (void)classObject;(void)env;
+
+ return ctx_clone_l;
+
+}
+
+SECP256K1_API jint JNICALL Java_org_bitcoin_NativeSecp256k1_secp256k1_1context_1randomize
+ (JNIEnv* env, jclass classObject, jobject byteBufferObject, jlong ctx_l)
+{
+ secp256k1_context *ctx = (secp256k1_context*)(uintptr_t)ctx_l;
+
+ const unsigned char* seed = (unsigned char*) (*env)->GetDirectBufferAddress(env, byteBufferObject);
+
+ (void)classObject;
+
+ return secp256k1_context_randomize(ctx, seed);
+
+}
+
+SECP256K1_API void JNICALL Java_org_bitcoin_NativeSecp256k1_secp256k1_1destroy_1context
+ (JNIEnv* env, jclass classObject, jlong ctx_l)
+{
+ secp256k1_context *ctx = (secp256k1_context*)(uintptr_t)ctx_l;
+
+ secp256k1_context_destroy(ctx);
+
+ (void)classObject;(void)env;
+}
+
+SECP256K1_API jint JNICALL Java_org_bitcoin_NativeSecp256k1_secp256k1_1ecdsa_1verify
+ (JNIEnv* env, jclass classObject, jobject byteBufferObject, jlong ctx_l, jint siglen, jint publen)
+{
+ secp256k1_context *ctx = (secp256k1_context*)(uintptr_t)ctx_l;
+
+ unsigned char* data = (unsigned char*) (*env)->GetDirectBufferAddress(env, byteBufferObject);
+ const unsigned char* sigdata = { (unsigned char*) (data + 32) };
+ const unsigned char* pubdata = { (unsigned char*) (data + siglen + 32) };
+
+ secp256k1_ecdsa_signature sig;
+ secp256k1_pubkey pubkey;
+
+ int ret = secp256k1_ecdsa_signature_parse_der(ctx, &sig, sigdata, siglen);
+
+ if( ret ) {
+ ret = secp256k1_ec_pubkey_parse(ctx, &pubkey, pubdata, publen);
+
+ if( ret ) {
+ ret = secp256k1_ecdsa_verify(ctx, &sig, data, &pubkey);
+ }
+ }
+
+ (void)classObject;
+
+ return ret;
+}
+
+SECP256K1_API jobjectArray JNICALL Java_org_bitcoin_NativeSecp256k1_secp256k1_1ecdsa_1sign
+ (JNIEnv* env, jclass classObject, jobject byteBufferObject, jlong ctx_l)
+{
+ secp256k1_context *ctx = (secp256k1_context*)(uintptr_t)ctx_l;
+ unsigned char* data = (unsigned char*) (*env)->GetDirectBufferAddress(env, byteBufferObject);
+ unsigned char* secKey = (unsigned char*) (data + 32);
+
+ jobjectArray retArray;
+ jbyteArray sigArray, intsByteArray;
+ unsigned char intsarray[2];
+
+ secp256k1_ecdsa_signature sig[72];
+
+ int ret = secp256k1_ecdsa_sign(ctx, sig, data, secKey, NULL, NULL );
+
+ unsigned char outputSer[72];
+ size_t outputLen = 72;
+
+ if( ret ) {
+ int ret2 = secp256k1_ecdsa_signature_serialize_der(ctx,outputSer, &outputLen, sig ); (void)ret2;
+ }
+
+ intsarray[0] = outputLen;
+ intsarray[1] = ret;
+
+ retArray = (*env)->NewObjectArray(env, 2,
+ (*env)->FindClass(env, "[B"),
+ (*env)->NewByteArray(env, 1));
+
+ sigArray = (*env)->NewByteArray(env, outputLen);
+ (*env)->SetByteArrayRegion(env, sigArray, 0, outputLen, (jbyte*)outputSer);
+ (*env)->SetObjectArrayElement(env, retArray, 0, sigArray);
+
+ intsByteArray = (*env)->NewByteArray(env, 2);
+ (*env)->SetByteArrayRegion(env, intsByteArray, 0, 2, (jbyte*)intsarray);
+ (*env)->SetObjectArrayElement(env, retArray, 1, intsByteArray);
+
+ (void)classObject;
+
+ return retArray;
+}
+
+SECP256K1_API jint JNICALL Java_org_bitcoin_NativeSecp256k1_secp256k1_1ec_1seckey_1verify
+ (JNIEnv* env, jclass classObject, jobject byteBufferObject, jlong ctx_l)
+{
+ secp256k1_context *ctx = (secp256k1_context*)(uintptr_t)ctx_l;
+ unsigned char* secKey = (unsigned char*) (*env)->GetDirectBufferAddress(env, byteBufferObject);
+
+ (void)classObject;
+
+ return secp256k1_ec_seckey_verify(ctx, secKey);
+}
+
+SECP256K1_API jobjectArray JNICALL Java_org_bitcoin_NativeSecp256k1_secp256k1_1ec_1pubkey_1create
+ (JNIEnv* env, jclass classObject, jobject byteBufferObject, jlong ctx_l)
+{
+ secp256k1_context *ctx = (secp256k1_context*)(uintptr_t)ctx_l;
+ const unsigned char* secKey = (unsigned char*) (*env)->GetDirectBufferAddress(env, byteBufferObject);
+
+ secp256k1_pubkey pubkey;
+
+ jobjectArray retArray;
+ jbyteArray pubkeyArray, intsByteArray;
+ unsigned char intsarray[2];
+
+ int ret = secp256k1_ec_pubkey_create(ctx, &pubkey, secKey);
+
+ unsigned char outputSer[65];
+ size_t outputLen = 65;
+
+ if( ret ) {
+ int ret2 = secp256k1_ec_pubkey_serialize(ctx,outputSer, &outputLen, &pubkey,SECP256K1_EC_UNCOMPRESSED );(void)ret2;
+ }
+
+ intsarray[0] = outputLen;
+ intsarray[1] = ret;
+
+ retArray = (*env)->NewObjectArray(env, 2,
+ (*env)->FindClass(env, "[B"),
+ (*env)->NewByteArray(env, 1));
+
+ pubkeyArray = (*env)->NewByteArray(env, outputLen);
+ (*env)->SetByteArrayRegion(env, pubkeyArray, 0, outputLen, (jbyte*)outputSer);
+ (*env)->SetObjectArrayElement(env, retArray, 0, pubkeyArray);
+
+ intsByteArray = (*env)->NewByteArray(env, 2);
+ (*env)->SetByteArrayRegion(env, intsByteArray, 0, 2, (jbyte*)intsarray);
+ (*env)->SetObjectArrayElement(env, retArray, 1, intsByteArray);
+
+ (void)classObject;
+
+ return retArray;
+
+}
+
+SECP256K1_API jobjectArray JNICALL Java_org_bitcoin_NativeSecp256k1_secp256k1_1privkey_1tweak_1add
+ (JNIEnv* env, jclass classObject, jobject byteBufferObject, jlong ctx_l)
+{
+ secp256k1_context *ctx = (secp256k1_context*)(uintptr_t)ctx_l;
+ unsigned char* privkey = (unsigned char*) (*env)->GetDirectBufferAddress(env, byteBufferObject);
+ const unsigned char* tweak = (unsigned char*) (privkey + 32);
+
+ jobjectArray retArray;
+ jbyteArray privArray, intsByteArray;
+ unsigned char intsarray[2];
+
+ int privkeylen = 32;
+
+ int ret = secp256k1_ec_privkey_tweak_add(ctx, privkey, tweak);
+
+ intsarray[0] = privkeylen;
+ intsarray[1] = ret;
+
+ retArray = (*env)->NewObjectArray(env, 2,
+ (*env)->FindClass(env, "[B"),
+ (*env)->NewByteArray(env, 1));
+
+ privArray = (*env)->NewByteArray(env, privkeylen);
+ (*env)->SetByteArrayRegion(env, privArray, 0, privkeylen, (jbyte*)privkey);
+ (*env)->SetObjectArrayElement(env, retArray, 0, privArray);
+
+ intsByteArray = (*env)->NewByteArray(env, 2);
+ (*env)->SetByteArrayRegion(env, intsByteArray, 0, 2, (jbyte*)intsarray);
+ (*env)->SetObjectArrayElement(env, retArray, 1, intsByteArray);
+
+ (void)classObject;
+
+ return retArray;
+}
+
+SECP256K1_API jobjectArray JNICALL Java_org_bitcoin_NativeSecp256k1_secp256k1_1privkey_1tweak_1mul
+ (JNIEnv* env, jclass classObject, jobject byteBufferObject, jlong ctx_l)
+{
+ secp256k1_context *ctx = (secp256k1_context*)(uintptr_t)ctx_l;
+ unsigned char* privkey = (unsigned char*) (*env)->GetDirectBufferAddress(env, byteBufferObject);
+ const unsigned char* tweak = (unsigned char*) (privkey + 32);
+
+ jobjectArray retArray;
+ jbyteArray privArray, intsByteArray;
+ unsigned char intsarray[2];
+
+ int privkeylen = 32;
+
+ int ret = secp256k1_ec_privkey_tweak_mul(ctx, privkey, tweak);
+
+ intsarray[0] = privkeylen;
+ intsarray[1] = ret;
+
+ retArray = (*env)->NewObjectArray(env, 2,
+ (*env)->FindClass(env, "[B"),
+ (*env)->NewByteArray(env, 1));
+
+ privArray = (*env)->NewByteArray(env, privkeylen);
+ (*env)->SetByteArrayRegion(env, privArray, 0, privkeylen, (jbyte*)privkey);
+ (*env)->SetObjectArrayElement(env, retArray, 0, privArray);
+
+ intsByteArray = (*env)->NewByteArray(env, 2);
+ (*env)->SetByteArrayRegion(env, intsByteArray, 0, 2, (jbyte*)intsarray);
+ (*env)->SetObjectArrayElement(env, retArray, 1, intsByteArray);
+
+ (void)classObject;
+
+ return retArray;
+}
+
+SECP256K1_API jobjectArray JNICALL Java_org_bitcoin_NativeSecp256k1_secp256k1_1pubkey_1tweak_1add
+ (JNIEnv* env, jclass classObject, jobject byteBufferObject, jlong ctx_l, jint publen)
+{
+ secp256k1_context *ctx = (secp256k1_context*)(uintptr_t)ctx_l;
+/* secp256k1_pubkey* pubkey = (secp256k1_pubkey*) (*env)->GetDirectBufferAddress(env, byteBufferObject);*/
+ unsigned char* pkey = (*env)->GetDirectBufferAddress(env, byteBufferObject);
+ const unsigned char* tweak = (unsigned char*) (pkey + publen);
+
+ jobjectArray retArray;
+ jbyteArray pubArray, intsByteArray;
+ unsigned char intsarray[2];
+ unsigned char outputSer[65];
+ size_t outputLen = 65;
+
+ secp256k1_pubkey pubkey;
+ int ret = secp256k1_ec_pubkey_parse(ctx, &pubkey, pkey, publen);
+
+ if( ret ) {
+ ret = secp256k1_ec_pubkey_tweak_add(ctx, &pubkey, tweak);
+ }
+
+ if( ret ) {
+ int ret2 = secp256k1_ec_pubkey_serialize(ctx,outputSer, &outputLen, &pubkey,SECP256K1_EC_UNCOMPRESSED );(void)ret2;
+ }
+
+ intsarray[0] = outputLen;
+ intsarray[1] = ret;
+
+ retArray = (*env)->NewObjectArray(env, 2,
+ (*env)->FindClass(env, "[B"),
+ (*env)->NewByteArray(env, 1));
+
+ pubArray = (*env)->NewByteArray(env, outputLen);
+ (*env)->SetByteArrayRegion(env, pubArray, 0, outputLen, (jbyte*)outputSer);
+ (*env)->SetObjectArrayElement(env, retArray, 0, pubArray);
+
+ intsByteArray = (*env)->NewByteArray(env, 2);
+ (*env)->SetByteArrayRegion(env, intsByteArray, 0, 2, (jbyte*)intsarray);
+ (*env)->SetObjectArrayElement(env, retArray, 1, intsByteArray);
+
+ (void)classObject;
+
+ return retArray;
+}
+
+SECP256K1_API jobjectArray JNICALL Java_org_bitcoin_NativeSecp256k1_secp256k1_1pubkey_1tweak_1mul
+ (JNIEnv* env, jclass classObject, jobject byteBufferObject, jlong ctx_l, jint publen)
{
- unsigned char* data = (unsigned char*) (*env)->GetDirectBufferAddress(env, byteBufferObject);
- int sigLen = *((int*)(data + 32));
- int pubLen = *((int*)(data + 32 + 4));
+ secp256k1_context *ctx = (secp256k1_context*)(uintptr_t)ctx_l;
+ unsigned char* pkey = (*env)->GetDirectBufferAddress(env, byteBufferObject);
+ const unsigned char* tweak = (unsigned char*) (pkey + publen);
+
+ jobjectArray retArray;
+ jbyteArray pubArray, intsByteArray;
+ unsigned char intsarray[2];
+ unsigned char outputSer[65];
+ size_t outputLen = 65;
+
+ secp256k1_pubkey pubkey;
+ int ret = secp256k1_ec_pubkey_parse(ctx, &pubkey, pkey, publen);
+
+ if ( ret ) {
+ ret = secp256k1_ec_pubkey_tweak_mul(ctx, &pubkey, tweak);
+ }
+
+ if( ret ) {
+ int ret2 = secp256k1_ec_pubkey_serialize(ctx,outputSer, &outputLen, &pubkey,SECP256K1_EC_UNCOMPRESSED );(void)ret2;
+ }
+
+ intsarray[0] = outputLen;
+ intsarray[1] = ret;
+
+ retArray = (*env)->NewObjectArray(env, 2,
+ (*env)->FindClass(env, "[B"),
+ (*env)->NewByteArray(env, 1));
+
+ pubArray = (*env)->NewByteArray(env, outputLen);
+ (*env)->SetByteArrayRegion(env, pubArray, 0, outputLen, (jbyte*)outputSer);
+ (*env)->SetObjectArrayElement(env, retArray, 0, pubArray);
- return secp256k1_ecdsa_verify(data, 32, data+32+8, sigLen, data+32+8+sigLen, pubLen);
+ intsByteArray = (*env)->NewByteArray(env, 2);
+ (*env)->SetByteArrayRegion(env, intsByteArray, 0, 2, (jbyte*)intsarray);
+ (*env)->SetObjectArrayElement(env, retArray, 1, intsByteArray);
+
+ (void)classObject;
+
+ return retArray;
}
-static void __javasecp256k1_attach(void) __attribute__((constructor));
-static void __javasecp256k1_detach(void) __attribute__((destructor));
+SECP256K1_API jlong JNICALL Java_org_bitcoin_NativeSecp256k1_secp256k1_1ecdsa_1pubkey_1combine
+ (JNIEnv * env, jclass classObject, jobject byteBufferObject, jlong ctx_l, jint numkeys)
+{
+ (void)classObject;(void)env;(void)byteBufferObject;(void)ctx_l;(void)numkeys;
-static void __javasecp256k1_attach(void) {
- secp256k1_start(SECP256K1_START_VERIFY);
+ return 0;
}
-static void __javasecp256k1_detach(void) {
- secp256k1_stop();
+SECP256K1_API jobjectArray JNICALL Java_org_bitcoin_NativeSecp256k1_secp256k1_1schnorr_1sign
+ (JNIEnv* env, jclass classObject, jobject byteBufferObject, jlong ctx_l)
+{
+ secp256k1_context *ctx = (secp256k1_context*)(uintptr_t)ctx_l;
+ unsigned char* data = (unsigned char*) (*env)->GetDirectBufferAddress(env, byteBufferObject);
+ unsigned char* secKey = (unsigned char*) (data + 32);
+
+ jobjectArray retArray;
+ jbyteArray sigArray, intsByteArray;
+ unsigned char intsarray[1];
+ unsigned char sig[64];
+
+ int ret = secp256k1_schnorr_sign(ctx, sig, data, secKey, NULL, NULL);
+
+ intsarray[0] = ret;
+
+ retArray = (*env)->NewObjectArray(env, 2,
+ (*env)->FindClass(env, "[B"),
+ (*env)->NewByteArray(env, 1));
+
+ sigArray = (*env)->NewByteArray(env, 64);
+ (*env)->SetByteArrayRegion(env, sigArray, 0, 64, (jbyte*)sig);
+ (*env)->SetObjectArrayElement(env, retArray, 0, sigArray);
+
+ intsByteArray = (*env)->NewByteArray(env, 1);
+ (*env)->SetByteArrayRegion(env, intsByteArray, 0, 1, (jbyte*)intsarray);
+ (*env)->SetObjectArrayElement(env, retArray, 1, intsByteArray);
+
+ (void)classObject;
+
+ return retArray;
+}
+
+SECP256K1_API jobjectArray JNICALL Java_org_bitcoin_NativeSecp256k1_secp256k1_1ecdh
+ (JNIEnv* env, jclass classObject, jobject byteBufferObject, jlong ctx_l, jint publen)
+{
+ secp256k1_context *ctx = (secp256k1_context*)(uintptr_t)ctx_l;
+ const unsigned char* secdata = (*env)->GetDirectBufferAddress(env, byteBufferObject);
+ const unsigned char* pubdata = (const unsigned char*) (secdata + 32);
+
+ jobjectArray retArray;
+ jbyteArray outArray, intsByteArray;
+ unsigned char intsarray[1];
+ secp256k1_pubkey pubkey;
+ unsigned char nonce_res[32];
+ size_t outputLen = 32;
+
+ int ret = secp256k1_ec_pubkey_parse(ctx, &pubkey, pubdata, publen);
+
+ if (ret) {
+ ret = secp256k1_ecdh(
+ ctx,
+ nonce_res,
+ &pubkey,
+ secdata
+ );
+ }
+
+ intsarray[0] = ret;
+
+ retArray = (*env)->NewObjectArray(env, 2,
+ (*env)->FindClass(env, "[B"),
+ (*env)->NewByteArray(env, 1));
+
+ outArray = (*env)->NewByteArray(env, outputLen);
+ (*env)->SetByteArrayRegion(env, outArray, 0, 32, (jbyte*)nonce_res);
+ (*env)->SetObjectArrayElement(env, retArray, 0, outArray);
+
+ intsByteArray = (*env)->NewByteArray(env, 1);
+ (*env)->SetByteArrayRegion(env, intsByteArray, 0, 1, (jbyte*)intsarray);
+ (*env)->SetObjectArrayElement(env, retArray, 1, intsByteArray);
+
+ (void)classObject;
+
+ return retArray;
}
diff --git a/src/java/org_bitcoin_NativeSecp256k1.h b/src/java/org_bitcoin_NativeSecp256k1.h
index d7fb004fa8..4125a1f523 100644
--- a/src/java/org_bitcoin_NativeSecp256k1.h
+++ b/src/java/org_bitcoin_NativeSecp256k1.h
@@ -1,5 +1,6 @@
/* DO NOT EDIT THIS FILE - it is machine generated */
#include <jni.h>
+#include "include/secp256k1.h"
/* Header for class org_bitcoin_NativeSecp256k1 */
#ifndef _Included_org_bitcoin_NativeSecp256k1
@@ -9,11 +10,116 @@ extern "C" {
#endif
/*
* Class: org_bitcoin_NativeSecp256k1
+ * Method: secp256k1_ctx_clone
+ * Signature: (J)J
+ */
+SECP256K1_API jlong JNICALL Java_org_bitcoin_NativeSecp256k1_secp256k1_1ctx_1clone
+ (JNIEnv *, jclass, jlong);
+
+/*
+ * Class: org_bitcoin_NativeSecp256k1
+ * Method: secp256k1_context_randomize
+ * Signature: (Ljava/nio/ByteBuffer;J)I
+ */
+SECP256K1_API jint JNICALL Java_org_bitcoin_NativeSecp256k1_secp256k1_1context_1randomize
+ (JNIEnv *, jclass, jobject, jlong);
+
+/*
+ * Class: org_bitcoin_NativeSecp256k1
+ * Method: secp256k1_privkey_tweak_add
+ * Signature: (Ljava/nio/ByteBuffer;J)[[B
+ */
+SECP256K1_API jobjectArray JNICALL Java_org_bitcoin_NativeSecp256k1_secp256k1_1privkey_1tweak_1add
+ (JNIEnv *, jclass, jobject, jlong);
+
+/*
+ * Class: org_bitcoin_NativeSecp256k1
+ * Method: secp256k1_privkey_tweak_mul
+ * Signature: (Ljava/nio/ByteBuffer;J)[[B
+ */
+SECP256K1_API jobjectArray JNICALL Java_org_bitcoin_NativeSecp256k1_secp256k1_1privkey_1tweak_1mul
+ (JNIEnv *, jclass, jobject, jlong);
+
+/*
+ * Class: org_bitcoin_NativeSecp256k1
+ * Method: secp256k1_pubkey_tweak_add
+ * Signature: (Ljava/nio/ByteBuffer;JI)[[B
+ */
+SECP256K1_API jobjectArray JNICALL Java_org_bitcoin_NativeSecp256k1_secp256k1_1pubkey_1tweak_1add
+ (JNIEnv *, jclass, jobject, jlong, jint);
+
+/*
+ * Class: org_bitcoin_NativeSecp256k1
+ * Method: secp256k1_pubkey_tweak_mul
+ * Signature: (Ljava/nio/ByteBuffer;JI)[[B
+ */
+SECP256K1_API jobjectArray JNICALL Java_org_bitcoin_NativeSecp256k1_secp256k1_1pubkey_1tweak_1mul
+ (JNIEnv *, jclass, jobject, jlong, jint);
+
+/*
+ * Class: org_bitcoin_NativeSecp256k1
+ * Method: secp256k1_destroy_context
+ * Signature: (J)V
+ */
+SECP256K1_API void JNICALL Java_org_bitcoin_NativeSecp256k1_secp256k1_1destroy_1context
+ (JNIEnv *, jclass, jlong);
+
+/*
+ * Class: org_bitcoin_NativeSecp256k1
* Method: secp256k1_ecdsa_verify
- * Signature: (Ljava/nio/ByteBuffer;)I
+ * Signature: (Ljava/nio/ByteBuffer;JII)I
+ */
+SECP256K1_API jint JNICALL Java_org_bitcoin_NativeSecp256k1_secp256k1_1ecdsa_1verify
+ (JNIEnv *, jclass, jobject, jlong, jint, jint);
+
+/*
+ * Class: org_bitcoin_NativeSecp256k1
+ * Method: secp256k1_ecdsa_sign
+ * Signature: (Ljava/nio/ByteBuffer;J)[[B
+ */
+SECP256K1_API jobjectArray JNICALL Java_org_bitcoin_NativeSecp256k1_secp256k1_1ecdsa_1sign
+ (JNIEnv *, jclass, jobject, jlong);
+
+/*
+ * Class: org_bitcoin_NativeSecp256k1
+ * Method: secp256k1_ec_seckey_verify
+ * Signature: (Ljava/nio/ByteBuffer;J)I
+ */
+SECP256K1_API jint JNICALL Java_org_bitcoin_NativeSecp256k1_secp256k1_1ec_1seckey_1verify
+ (JNIEnv *, jclass, jobject, jlong);
+
+/*
+ * Class: org_bitcoin_NativeSecp256k1
+ * Method: secp256k1_ec_pubkey_create
+ * Signature: (Ljava/nio/ByteBuffer;J)[[B
*/
-JNIEXPORT jint JNICALL Java_org_bitcoin_NativeSecp256k1_secp256k1_1ecdsa_1verify
- (JNIEnv *, jclass, jobject);
+SECP256K1_API jobjectArray JNICALL Java_org_bitcoin_NativeSecp256k1_secp256k1_1ec_1pubkey_1create
+ (JNIEnv *, jclass, jobject, jlong);
+
+/*
+ * Class: org_bitcoin_NativeSecp256k1
+ * Method: secp256k1_ec_pubkey_parse
+ * Signature: (Ljava/nio/ByteBuffer;JI)[[B
+ */
+SECP256K1_API jobjectArray JNICALL Java_org_bitcoin_NativeSecp256k1_secp256k1_1ec_1pubkey_1parse
+ (JNIEnv *, jclass, jobject, jlong, jint);
+
+/*
+ * Class: org_bitcoin_NativeSecp256k1
+ * Method: secp256k1_schnorr_sign
+ * Signature: (Ljava/nio/ByteBuffer;JI)[[B
+ */
+SECP256K1_API jobjectArray JNICALL Java_org_bitcoin_NativeSecp256k1_secp256k1_1schnorr_1sign
+ (JNIEnv* env, jclass classObject, jobject byteBufferObject, jlong ctx_l);
+
+/*
+ * Class: org_bitcoin_NativeSecp256k1
+ * Method: secp256k1_ecdh
+ * Signature: (Ljava/nio/ByteBuffer;JI)[[B
+ */
+SECP256K1_API jobjectArray JNICALL Java_org_bitcoin_NativeSecp256k1_secp256k1_1ecdh
+ (JNIEnv* env, jclass classObject, jobject byteBufferObject, jlong ctx_l, jint publen);
+
#ifdef __cplusplus
}
diff --git a/src/java/org_bitcoin_Secp256k1Context.c b/src/java/org_bitcoin_Secp256k1Context.c
new file mode 100644
index 0000000000..a52939e7e7
--- /dev/null
+++ b/src/java/org_bitcoin_Secp256k1Context.c
@@ -0,0 +1,15 @@
+#include <stdlib.h>
+#include <stdint.h>
+#include "org_bitcoin_Secp256k1Context.h"
+#include "include/secp256k1.h"
+
+SECP256K1_API jlong JNICALL Java_org_bitcoin_Secp256k1Context_secp256k1_1init_1context
+ (JNIEnv* env, jclass classObject)
+{
+ secp256k1_context *ctx = secp256k1_context_create(SECP256K1_CONTEXT_SIGN | SECP256K1_CONTEXT_VERIFY);
+
+ (void)classObject;(void)env;
+
+ return (uintptr_t)ctx;
+}
+
diff --git a/src/java/org_bitcoin_Secp256k1Context.h b/src/java/org_bitcoin_Secp256k1Context.h
new file mode 100644
index 0000000000..0d2bc84b7f
--- /dev/null
+++ b/src/java/org_bitcoin_Secp256k1Context.h
@@ -0,0 +1,22 @@
+/* DO NOT EDIT THIS FILE - it is machine generated */
+#include <jni.h>
+#include "include/secp256k1.h"
+/* Header for class org_bitcoin_Secp256k1Context */
+
+#ifndef _Included_org_bitcoin_Secp256k1Context
+#define _Included_org_bitcoin_Secp256k1Context
+#ifdef __cplusplus
+extern "C" {
+#endif
+/*
+ * Class: org_bitcoin_Secp256k1Context
+ * Method: secp256k1_init_context
+ * Signature: ()J
+ */
+SECP256K1_API jlong JNICALL Java_org_bitcoin_Secp256k1Context_secp256k1_1init_1context
+ (JNIEnv *, jclass);
+
+#ifdef __cplusplus
+}
+#endif
+#endif
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-15 02:26:30 +0000