Android & JVM loader in their own modules
This commit is contained in:
Salomon BRYS
3
jni/src/androidMain/AndroidManifest.xml
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3
jni/src/androidMain/AndroidManifest.xml
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@@ -0,0 +1,3 @@
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<?xml version="1.0" encoding="utf-8"?>
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<manifest package="fr.acinq.secp256k1">
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</manifest>
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14
jni/src/androidMain/CMakeLists.txt
Normal file
14
jni/src/androidMain/CMakeLists.txt
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@@ -0,0 +1,14 @@
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cmake_minimum_required(VERSION 3.10.0)
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add_library( secp256k1-jni SHARED
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${CMAKE_CURRENT_LIST_DIR}/../../../native/jni/src/org_bitcoin_NativeSecp256k1.c
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${CMAKE_CURRENT_LIST_DIR}/../../../native/jni/src/org_bitcoin_Secp256k1Context.c
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)
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target_include_directories( secp256k1-jni
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PUBLIC ${CMAKE_CURRENT_LIST_DIR}/../../../native/secp256k1
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)
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target_link_libraries( secp256k1-jni
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${CMAKE_CURRENT_LIST_DIR}/../../../native/build/android/${ANDROID_ABI}/libsecp256k1.a
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)
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@@ -0,0 +1,12 @@
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package fr.acinq.secp256k1.jni
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public actual object NativeSecp256k1Loader {
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@JvmStatic
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@Synchronized
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@Throws(Exception::class)
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actual fun load() {
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System.loadLibrary("secp256k1-jni")
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}
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}
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@@ -0,0 +1,10 @@
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package fr.acinq.secp256k1.jni
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import kotlin.jvm.JvmStatic
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public expect object NativeSecp256k1Loader {
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public fun load()
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}
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557
jni/src/commonMain/kotlin/org/bitcoin/NativeSecp256k1.kt
Normal file
557
jni/src/commonMain/kotlin/org/bitcoin/NativeSecp256k1.kt
Normal file
@@ -0,0 +1,557 @@
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/*
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* Copyright 2013 Google Inc.
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* Copyright 2014-2016 the libsecp256k1 contributors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.bitcoin
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import org.bitcoin.NativeSecp256k1Util.AssertFailException
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import java.math.BigInteger
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import java.nio.ByteBuffer
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import java.nio.ByteOrder
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import java.util.concurrent.locks.Lock
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import java.util.concurrent.locks.ReentrantReadWriteLock
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/**
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*
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* This class holds native methods to handle ECDSA verification.
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*
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*
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* You can find an example library that can be used for this at https://github.com/bitcoin/secp256k1
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*
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*
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* To build secp256k1 for use with bitcoinj, run
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* `./configure --enable-jni --enable-experimental --enable-module-ecdh`
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* and `make` then copy `.libs/libsecp256k1.so` to your system library path
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* or point the JVM to the folder containing it with -Djava.library.path
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*
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*/
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public object NativeSecp256k1 {
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private val rwl = ReentrantReadWriteLock()
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private val r: Lock = rwl.readLock()
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private val w: Lock = rwl.writeLock()
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private val nativeECDSABuffer = ThreadLocal<ByteBuffer?>()
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private fun pack(vararg buffers: ByteArray): ByteBuffer {
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var size = 0
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for (i in buffers.indices) {
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size += buffers[i].size
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}
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val byteBuff = nativeECDSABuffer.get()?.takeIf { it.capacity() >= size }
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?: ByteBuffer.allocateDirect(size).also {
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it.order(ByteOrder.nativeOrder())
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nativeECDSABuffer.set(it)
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}
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byteBuff.rewind()
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for (i in buffers.indices) {
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byteBuff.put(buffers[i])
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}
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return byteBuff
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}
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/**
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* Verifies the given secp256k1 signature in native code.
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* Calling when enabled == false is undefined (probably library not loaded)
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*
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* @param data The data which was signed, must be exactly 32 bytes
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* @param signature The signature
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* @param pub The public key which did the signing
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* @return true if the signature is valid
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* @throws AssertFailException in case of failure
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*/
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@JvmStatic
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@Throws(AssertFailException::class)
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public fun verify(data: ByteArray, signature: ByteArray, pub: ByteArray): Boolean {
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require(data.size == 32 && signature.size <= 520 && pub.size <= 520)
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val byteBuff = pack(data, signature, pub)
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r.lock()
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return try {
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secp256k1_ecdsa_verify(
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byteBuff,
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Secp256k1Context.getContext(),
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signature.size,
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pub.size
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) == 1
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} finally {
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r.unlock()
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}
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}
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/**
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* libsecp256k1 Create an ECDSA signature.
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*
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* @param data Message hash, 32 bytes
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* @param sec Secret key, 32 bytes
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* @param compact True for compact signature, false for DER
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* @return a signature, or an empty array is signing failed
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* @throws AssertFailException in case of failure
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*/
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@JvmStatic
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@Throws(AssertFailException::class)
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public fun sign(data: ByteArray, sec: ByteArray, compact: Boolean): ByteArray {
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require(data.size == 32 && sec.size <= 32)
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val byteBuff = pack(data, sec)
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val retByteArray: Array<ByteArray>
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r.lock()
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retByteArray = try {
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secp256k1_ecdsa_sign(
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byteBuff,
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compact,
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Secp256k1Context.getContext()
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)
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} finally {
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r.unlock()
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}
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val sigArr = retByteArray[0]
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val sigLen = BigInteger(byteArrayOf(retByteArray[1][0])).toInt()
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val retVal = BigInteger(byteArrayOf(retByteArray[1][1])).toInt()
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NativeSecp256k1Util.assertEquals(
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sigArr.size,
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sigLen,
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"Got bad signature length."
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)
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return if (retVal == 0) ByteArray(0) else sigArr
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}
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@JvmStatic
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@Throws(AssertFailException::class)
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public fun signatureNormalize(sig: ByteArray, compact: Boolean): Pair<ByteArray, Boolean> {
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require(sig.size == 64 || sig.size in 70..73)
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val byteBuff = pack(sig)
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val retByteArray: Array<ByteArray>
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r.lock()
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retByteArray = try {
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secp256k1_ecdsa_normalize(
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byteBuff,
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sig.size,
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compact,
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Secp256k1Context.getContext()
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)
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} finally {
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r.unlock()
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}
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val sigArr = retByteArray[0]
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val sigLen = BigInteger(byteArrayOf(retByteArray[1][0])).toInt()
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val retVal = BigInteger(byteArrayOf(retByteArray[1][1])).toInt()
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val retBool = BigInteger(byteArrayOf(retByteArray[1][2])).toInt()
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NativeSecp256k1Util.assertEquals(
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sigArr.size,
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sigLen,
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"Got bad signature length."
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)
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return (if (retVal == 0) ByteArray(0) else sigArr) to (retBool == 1)
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}
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/**
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* libsecp256k1 Seckey Verify - returns 1 if valid, 0 if invalid
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*
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* @param seckey ECDSA Secret key, 32 bytes
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* @return true if seckey is valid
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*/
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@JvmStatic
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public fun secKeyVerify(seckey: ByteArray): Boolean {
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require(seckey.size == 32)
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val byteBuff = pack(seckey)
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r.lock()
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return try {
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secp256k1_ec_seckey_verify(
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byteBuff,
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Secp256k1Context.getContext()
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) == 1
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} finally {
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r.unlock()
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}
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}
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/**
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* libsecp256k1 Compute Pubkey - computes public key from secret key
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*
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* @param seckey ECDSA Secret key, 32 bytes
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* @throws AssertFailException if parameters are not valid
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* @return the corresponding public key (uncompressed)
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*/
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//TODO add a 'compressed' arg
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@JvmStatic
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@Throws(AssertFailException::class)
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public fun computePubkey(seckey: ByteArray, compressed: Boolean): ByteArray {
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require(seckey.size == 32)
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val byteBuff = pack(seckey)
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val retByteArray: Array<ByteArray>
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r.lock()
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retByteArray = try {
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secp256k1_ec_pubkey_create(
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byteBuff,
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compressed,
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Secp256k1Context.getContext()
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)
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} finally {
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r.unlock()
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}
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val pubArr = retByteArray[0]
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val pubLen = BigInteger(byteArrayOf(retByteArray[1][0])).toInt()
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val retVal = BigInteger(byteArrayOf(retByteArray[1][1])).toInt()
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NativeSecp256k1Util.assertEquals(pubArr.size, pubLen, "Got bad pubkey length.")
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return if (retVal == 0) ByteArray(0) else pubArr
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}
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/**
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* @param pubkey public key
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* @return the input public key (uncompressed) if valid, or an empty array
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* @throws AssertFailException in case of failure
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*/
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@JvmStatic
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@Throws(AssertFailException::class)
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public fun parsePubkey(pubkey: ByteArray, compressed: Boolean): ByteArray {
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require(pubkey.size == 33 || pubkey.size == 65)
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val byteBuff = pack(pubkey)
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val retByteArray: Array<ByteArray>
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r.lock()
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retByteArray = try {
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secp256k1_ec_pubkey_parse(
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byteBuff,
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Secp256k1Context.getContext(),
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pubkey.size,
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compressed
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)
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} finally {
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r.unlock()
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}
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val pubArr = retByteArray[0]
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BigInteger(byteArrayOf(retByteArray[1][0])).toInt()
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val retVal = BigInteger(byteArrayOf(retByteArray[1][1])).toInt()
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NativeSecp256k1Util.assertEquals(pubArr.size, if (compressed) 33 else 65, "Got bad pubkey length.")
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return if (retVal == 0) ByteArray(0) else pubArr
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}
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/**
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* libsecp256k1 Cleanup - This destroys the secp256k1 context object
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* This should be called at the end of the program for proper cleanup of the context.
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*/
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@JvmStatic
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@Synchronized
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public fun cleanup() {
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w.lock()
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try {
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secp256k1_destroy_context(Secp256k1Context.getContext())
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} finally {
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w.unlock()
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}
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}
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@JvmStatic
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@Throws(AssertFailException::class)
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public fun privKeyNegate(privkey: ByteArray): ByteArray {
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require(privkey.size == 32)
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val byteBuff = pack(privkey)
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val retByteArray: Array<ByteArray>
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r.lock()
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retByteArray = try {
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secp256k1_privkey_negate(
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byteBuff,
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Secp256k1Context.getContext()
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)
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} finally {
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r.unlock()
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}
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val privArr = retByteArray[0]
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val privLen: Int = BigInteger(byteArrayOf(retByteArray[1][0])).toInt() and 0xFF
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val retVal = BigInteger(byteArrayOf(retByteArray[1][1])).toInt()
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NativeSecp256k1Util.assertEquals(
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privArr.size,
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privLen,
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"Got bad privkey length."
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)
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NativeSecp256k1Util.assertEquals(retVal, 1, "Failed return value check.")
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return privArr
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}
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/**
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* libsecp256k1 PrivKey Tweak-Mul - Tweak privkey by multiplying to it
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*
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* @param privkey 32-byte seckey
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* @param tweak some bytes to tweak with
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* @return privkey * tweak
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* @throws AssertFailException in case of failure
|
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*/
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@JvmStatic
|
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@Throws(AssertFailException::class)
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public fun privKeyTweakMul(privkey: ByteArray, tweak: ByteArray): ByteArray {
|
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require(privkey.size == 32)
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val byteBuff = pack(privkey, tweak)
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val retByteArray: Array<ByteArray>
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r.lock()
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retByteArray = try {
|
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secp256k1_privkey_tweak_mul(
|
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byteBuff,
|
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Secp256k1Context.getContext()
|
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)
|
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} finally {
|
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r.unlock()
|
||||
}
|
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val privArr = retByteArray[0]
|
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val privLen: Int = BigInteger(byteArrayOf(retByteArray[1][0])).toInt() and 0xFF
|
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val retVal = BigInteger(byteArrayOf(retByteArray[1][1])).toInt()
|
||||
NativeSecp256k1Util.assertEquals(
|
||||
privArr.size,
|
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privLen,
|
||||
"Got bad privkey length."
|
||||
)
|
||||
NativeSecp256k1Util.assertEquals(retVal, 1, "Failed return value check.")
|
||||
return privArr
|
||||
}
|
||||
|
||||
/**
|
||||
* libsecp256k1 PrivKey Tweak-Add - Tweak privkey by adding to it
|
||||
*
|
||||
* @param privkey 32-byte seckey
|
||||
* @param tweak some bytes to tweak with
|
||||
* @return privkey + tweak
|
||||
* @throws AssertFailException in case of failure
|
||||
*/
|
||||
@JvmStatic
|
||||
@Throws(AssertFailException::class)
|
||||
public fun privKeyTweakAdd(privkey: ByteArray, tweak: ByteArray): ByteArray {
|
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require(privkey.size == 32)
|
||||
val byteBuff = pack(privkey, tweak)
|
||||
val retByteArray: Array<ByteArray>
|
||||
r.lock()
|
||||
retByteArray = try {
|
||||
secp256k1_privkey_tweak_add(
|
||||
byteBuff,
|
||||
Secp256k1Context.getContext()
|
||||
)
|
||||
} finally {
|
||||
r.unlock()
|
||||
}
|
||||
val privArr = retByteArray[0]
|
||||
val privLen: Int = BigInteger(byteArrayOf(retByteArray[1][0])).toInt() and 0xFF
|
||||
val retVal = BigInteger(byteArrayOf(retByteArray[1][1])).toInt()
|
||||
NativeSecp256k1Util.assertEquals(privArr.size, privLen, "Got bad pubkey length.")
|
||||
NativeSecp256k1Util.assertEquals(retVal, 1, "Failed return value check.")
|
||||
return privArr
|
||||
}
|
||||
|
||||
@JvmStatic
|
||||
@Throws(AssertFailException::class)
|
||||
public fun pubKeyNegate(pubkey: ByteArray): ByteArray {
|
||||
require(pubkey.size == 33 || pubkey.size == 65)
|
||||
val byteBuff = pack(pubkey)
|
||||
val retByteArray: Array<ByteArray>
|
||||
r.lock()
|
||||
retByteArray = try {
|
||||
secp256k1_pubkey_negate(
|
||||
byteBuff,
|
||||
Secp256k1Context.getContext(),
|
||||
pubkey.size
|
||||
)
|
||||
} finally {
|
||||
r.unlock()
|
||||
}
|
||||
val pubArr = retByteArray[0]
|
||||
val pubLen: Int = BigInteger(byteArrayOf(retByteArray[1][0])).toInt() and 0xFF
|
||||
val retVal = BigInteger(byteArrayOf(retByteArray[1][1])).toInt()
|
||||
NativeSecp256k1Util.assertEquals(pubArr.size, pubLen, "Got bad pubkey length.")
|
||||
NativeSecp256k1Util.assertEquals(retVal, 1, "Failed return value check.")
|
||||
return pubArr
|
||||
}
|
||||
|
||||
/**
|
||||
* libsecp256k1 PubKey Tweak-Add - Tweak pubkey by adding to it
|
||||
*
|
||||
* @param tweak some bytes to tweak with
|
||||
* @param pubkey 32-byte seckey
|
||||
* @return pubkey + tweak
|
||||
* @throws AssertFailException in case of failure
|
||||
*/
|
||||
@JvmStatic
|
||||
@Throws(AssertFailException::class)
|
||||
public fun pubKeyTweakAdd(pubkey: ByteArray, tweak: ByteArray): ByteArray {
|
||||
require(pubkey.size == 33 || pubkey.size == 65)
|
||||
val byteBuff = pack(pubkey, tweak)
|
||||
val retByteArray: Array<ByteArray>
|
||||
r.lock()
|
||||
retByteArray = try {
|
||||
secp256k1_pubkey_tweak_add(
|
||||
byteBuff,
|
||||
Secp256k1Context.getContext(),
|
||||
pubkey.size
|
||||
)
|
||||
} finally {
|
||||
r.unlock()
|
||||
}
|
||||
val pubArr = retByteArray[0]
|
||||
val pubLen: Int = BigInteger(byteArrayOf(retByteArray[1][0])).toInt() and 0xFF
|
||||
val retVal = BigInteger(byteArrayOf(retByteArray[1][1])).toInt()
|
||||
NativeSecp256k1Util.assertEquals(pubArr.size, pubLen, "Got bad pubkey length.")
|
||||
NativeSecp256k1Util.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
|
||||
* @return pubkey * tweak
|
||||
* @throws AssertFailException in case of failure
|
||||
*/
|
||||
@JvmStatic
|
||||
@Throws(AssertFailException::class)
|
||||
public fun pubKeyTweakMul(pubkey: ByteArray, tweak: ByteArray): ByteArray {
|
||||
require(pubkey.size == 33 || pubkey.size == 65)
|
||||
val byteBuff = pack(pubkey, tweak)
|
||||
val retByteArray: Array<ByteArray>
|
||||
r.lock()
|
||||
retByteArray = try {
|
||||
secp256k1_pubkey_tweak_mul(
|
||||
byteBuff,
|
||||
Secp256k1Context.getContext(),
|
||||
pubkey.size
|
||||
)
|
||||
} finally {
|
||||
r.unlock()
|
||||
}
|
||||
val pubArr = retByteArray[0]
|
||||
val pubLen: Int = BigInteger(byteArrayOf(retByteArray[1][0])).toInt() and 0xFF
|
||||
val retVal = BigInteger(byteArrayOf(retByteArray[1][1])).toInt()
|
||||
NativeSecp256k1Util.assertEquals(pubArr.size, pubLen, "Got bad pubkey length.")
|
||||
NativeSecp256k1Util.assertEquals(retVal, 1, "Failed return value check.")
|
||||
return pubArr
|
||||
}
|
||||
|
||||
@JvmStatic
|
||||
@Throws(AssertFailException::class)
|
||||
public fun pubKeyAdd(pubkey1: ByteArray, pubkey2: ByteArray): ByteArray {
|
||||
require(pubkey1.size == 33 || pubkey1.size == 65)
|
||||
require(pubkey2.size == 33 || pubkey2.size == 65)
|
||||
val byteBuff = pack(pubkey1, pubkey2)
|
||||
val retByteArray: Array<ByteArray>
|
||||
r.lock()
|
||||
retByteArray = try {
|
||||
secp256k1_ec_pubkey_add(
|
||||
byteBuff,
|
||||
Secp256k1Context.getContext(),
|
||||
pubkey1.size,
|
||||
pubkey2.size
|
||||
)
|
||||
} finally {
|
||||
r.unlock()
|
||||
}
|
||||
val pubArr = retByteArray[0]
|
||||
val pubLen: Int = BigInteger(byteArrayOf(retByteArray[1][0])).toInt() and 0xFF
|
||||
val retVal = BigInteger(byteArrayOf(retByteArray[1][1])).toInt()
|
||||
NativeSecp256k1Util.assertEquals(pubkey1.size, pubLen, "Got bad pubkey length.")
|
||||
NativeSecp256k1Util.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
|
||||
* @return ecdh(sedckey, pubkey)
|
||||
* @throws AssertFailException in case of failure
|
||||
*/
|
||||
@JvmStatic
|
||||
@Throws(AssertFailException::class)
|
||||
public fun createECDHSecret(seckey: ByteArray, pubkey: ByteArray): ByteArray {
|
||||
require(seckey.size <= 32 && pubkey.size <= 65)
|
||||
val byteBuff = pack(seckey, pubkey)
|
||||
val retByteArray: Array<ByteArray>
|
||||
r.lock()
|
||||
retByteArray = try {
|
||||
secp256k1_ecdh(
|
||||
byteBuff,
|
||||
Secp256k1Context.getContext(),
|
||||
pubkey.size
|
||||
)
|
||||
} finally {
|
||||
r.unlock()
|
||||
}
|
||||
val resArr = retByteArray[0]
|
||||
val retVal = BigInteger(byteArrayOf(retByteArray[1][0])).toInt()
|
||||
NativeSecp256k1Util.assertEquals(resArr.size, 32, "Got bad result length.")
|
||||
NativeSecp256k1Util.assertEquals(retVal, 1, "Failed return value check.")
|
||||
return resArr
|
||||
}
|
||||
|
||||
@JvmStatic
|
||||
@Throws(AssertFailException::class)
|
||||
public fun ecdsaRecover(sig: ByteArray, message: ByteArray, recid: Int, compressed: Boolean): ByteArray {
|
||||
require(sig.size == 64)
|
||||
require(message.size == 32)
|
||||
val byteBuff = pack(sig, message)
|
||||
val retByteArray: Array<ByteArray>
|
||||
r.lock()
|
||||
retByteArray = try {
|
||||
secp256k1_ecdsa_recover(
|
||||
byteBuff,
|
||||
Secp256k1Context.getContext(),
|
||||
recid,
|
||||
compressed
|
||||
)
|
||||
} finally {
|
||||
r.unlock()
|
||||
}
|
||||
val resArr = retByteArray[0]
|
||||
val retVal = BigInteger(byteArrayOf(retByteArray[1][0])).toInt()
|
||||
NativeSecp256k1Util.assertEquals(resArr.size, if (compressed) 33 else 65, "Got bad result length.")
|
||||
NativeSecp256k1Util.assertEquals(retVal, 1, "Failed return value check.")
|
||||
return resArr
|
||||
}
|
||||
|
||||
/**
|
||||
* libsecp256k1 randomize - updates the context randomization
|
||||
*
|
||||
* @param seed 32-byte random seed
|
||||
* @return true if successful
|
||||
* @throws AssertFailException in case of failure
|
||||
*/
|
||||
@JvmStatic
|
||||
@Synchronized
|
||||
@Throws(AssertFailException::class)
|
||||
public fun randomize(seed: ByteArray): Boolean {
|
||||
require(seed.size == 32)
|
||||
val byteBuff = pack(seed)
|
||||
w.lock()
|
||||
return try {
|
||||
secp256k1_context_randomize(
|
||||
byteBuff,
|
||||
Secp256k1Context.getContext()
|
||||
) == 1
|
||||
} finally {
|
||||
w.unlock()
|
||||
}
|
||||
}
|
||||
|
||||
@JvmStatic private external fun secp256k1_context_randomize(byteBuff: ByteBuffer, context: Long): Int
|
||||
@JvmStatic private external fun secp256k1_privkey_negate(byteBuff: ByteBuffer, context: Long): Array<ByteArray>
|
||||
@JvmStatic private external fun secp256k1_privkey_tweak_add(byteBuff: ByteBuffer, context: Long): Array<ByteArray>
|
||||
@JvmStatic private external fun secp256k1_privkey_tweak_mul(byteBuff: ByteBuffer, context: Long): Array<ByteArray>
|
||||
@JvmStatic private external fun secp256k1_pubkey_negate(byteBuff: ByteBuffer, context: Long, pubLen: Int): Array<ByteArray>
|
||||
@JvmStatic private external fun secp256k1_pubkey_tweak_add(byteBuff: ByteBuffer, context: Long, pubLen: Int): Array<ByteArray>
|
||||
@JvmStatic private external fun secp256k1_pubkey_tweak_mul(byteBuff: ByteBuffer, context: Long, pubLen: Int): Array<ByteArray>
|
||||
@JvmStatic private external fun secp256k1_destroy_context(context: Long)
|
||||
@JvmStatic private external fun secp256k1_ecdsa_verify(byteBuff: ByteBuffer, context: Long, sigLen: Int, pubLen: Int): Int
|
||||
@JvmStatic private external fun secp256k1_ecdsa_sign(byteBuff: ByteBuffer, compact: Boolean, context: Long): Array<ByteArray>
|
||||
@JvmStatic private external fun secp256k1_ecdsa_normalize(byteBuff: ByteBuffer, sigLen: Int, compact: Boolean, context: Long): Array<ByteArray>
|
||||
@JvmStatic private external fun secp256k1_ec_seckey_verify(byteBuff: ByteBuffer, context: Long): Int
|
||||
@JvmStatic private external fun secp256k1_ec_pubkey_create(byteBuff: ByteBuffer, compressed: Boolean, context: Long): Array<ByteArray>
|
||||
@JvmStatic private external fun secp256k1_ec_pubkey_parse(byteBuff: ByteBuffer, context: Long, inputLen: Int, compressed: Boolean): Array<ByteArray>
|
||||
@JvmStatic private external fun secp256k1_ec_pubkey_add(byteBuff: ByteBuffer, context: Long, lent1: Int, len2: Int): Array<ByteArray>
|
||||
@JvmStatic private external fun secp256k1_ecdh(byteBuff: ByteBuffer, context: Long, inputLen: Int): Array<ByteArray>
|
||||
@JvmStatic private external fun secp256k1_ecdsa_recover(byteBuff: ByteBuffer, context: Long, recid: Int, compressed: Boolean): Array<ByteArray>
|
||||
}
|
||||
28
jni/src/commonMain/kotlin/org/bitcoin/NativeSecp256k1Util.kt
Normal file
28
jni/src/commonMain/kotlin/org/bitcoin/NativeSecp256k1Util.kt
Normal file
@@ -0,0 +1,28 @@
|
||||
/*
|
||||
* 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 kotlin.jvm.Throws
|
||||
import java.lang.Exception
|
||||
|
||||
internal object NativeSecp256k1Util {
|
||||
@Throws(AssertFailException::class)
|
||||
fun assertEquals(val1: Int, val2: Int, message: String) {
|
||||
if (val1 != val2) throw AssertFailException("FAIL: $message")
|
||||
}
|
||||
|
||||
class AssertFailException(message: String?) : Exception(message)
|
||||
}
|
||||
40
jni/src/commonMain/kotlin/org/bitcoin/Secp256k1Context.kt
Normal file
40
jni/src/commonMain/kotlin/org/bitcoin/Secp256k1Context.kt
Normal file
@@ -0,0 +1,40 @@
|
||||
/*
|
||||
* 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 kotlin.jvm.JvmStatic
|
||||
|
||||
/**
|
||||
* This class holds the context reference used in native methods
|
||||
* to handle ECDSA operations.
|
||||
*/
|
||||
public object Secp256k1Context {
|
||||
@JvmStatic
|
||||
public val isEnabled: Boolean //true if the library is loaded
|
||||
private val context: Long //ref to pointer to context obj
|
||||
|
||||
@JvmStatic
|
||||
public fun getContext(): Long {
|
||||
return if (!isEnabled) -1 else context //sanity check
|
||||
}
|
||||
|
||||
@JvmStatic private external fun secp256k1_init_context(): Long
|
||||
|
||||
init { //static initializer
|
||||
isEnabled = true
|
||||
context = secp256k1_init_context()
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,211 @@
|
||||
package fr.acinq.secp256k1.jni
|
||||
|
||||
import java.io.*
|
||||
import java.util.*
|
||||
|
||||
/**
|
||||
* Set the system properties, org.sqlite.lib.path, org.sqlite.lib.name,
|
||||
* appropriately so that the SQLite JDBC driver can find *.dll, *.jnilib and
|
||||
* *.so files, according to the current OS (win, linux, mac).
|
||||
* The library files are automatically extracted from this project's package (JAR).
|
||||
* usage: call [.initialize] before using SQLite JDBC driver.
|
||||
*
|
||||
* @author leo
|
||||
*/
|
||||
public actual object NativeSecp256k1Loader {
|
||||
private var extracted = false
|
||||
|
||||
/**
|
||||
* Loads secp256k1 native library.
|
||||
*
|
||||
* @return True if secp256k1 native library is successfully loaded; false otherwise.
|
||||
* @throws Exception if loading fails
|
||||
*/
|
||||
@JvmStatic
|
||||
@Synchronized
|
||||
@Throws(Exception::class)
|
||||
public actual fun load() {
|
||||
// only cleanup before the first extract
|
||||
if (!extracted) {
|
||||
cleanup()
|
||||
}
|
||||
loadSecp256k1NativeLibrary()
|
||||
}
|
||||
|
||||
private val tempDir: File
|
||||
get() = File(
|
||||
System.getProperty(
|
||||
"fr.acinq.secp256k1.tmpdir",
|
||||
System.getProperty("java.io.tmpdir")
|
||||
)
|
||||
)
|
||||
|
||||
/**
|
||||
* Deleted old native libraries e.g. on Windows the DLL file is not removed
|
||||
* on VM-Exit (bug #80)
|
||||
*/
|
||||
@JvmStatic
|
||||
public fun cleanup() {
|
||||
val tempFolder = tempDir.absolutePath
|
||||
val dir = File(tempFolder)
|
||||
val nativeLibFiles = dir.listFiles(object : FilenameFilter {
|
||||
private val searchPattern = "secp256k1-"
|
||||
override fun accept(dir: File, name: String): Boolean {
|
||||
return name.startsWith(searchPattern) && !name.endsWith(".lck")
|
||||
}
|
||||
})
|
||||
if (nativeLibFiles != null) {
|
||||
for (nativeLibFile in nativeLibFiles) {
|
||||
val lckFile = File(nativeLibFile.absolutePath + ".lck")
|
||||
if (!lckFile.exists()) {
|
||||
try {
|
||||
nativeLibFile.delete()
|
||||
} catch (e: SecurityException) {
|
||||
System.err.println("Failed to delete old native lib" + e.message)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@Throws(IOException::class)
|
||||
private fun InputStream.contentsEquals(other: InputStream): Boolean {
|
||||
val bufThis = this as? BufferedInputStream
|
||||
?: BufferedInputStream(this)
|
||||
val bufOther = other as? BufferedInputStream
|
||||
?: BufferedInputStream(other)
|
||||
var ch = bufThis.read()
|
||||
while (ch != -1) {
|
||||
val ch2 = bufOther.read()
|
||||
if (ch != ch2) return false
|
||||
ch = bufThis.read()
|
||||
}
|
||||
val ch2 = bufOther.read()
|
||||
return ch2 == -1
|
||||
}
|
||||
|
||||
/**
|
||||
* Extracts and loads the specified library file to the target folder
|
||||
*
|
||||
* @param libDir Library path.
|
||||
* @param libFileName Library name.
|
||||
* @param targetDirectory Target folder.
|
||||
* @return
|
||||
*/
|
||||
private fun extractAndLoadLibraryFile(libDir: String, libFileName: String, targetDirectory: String): Boolean {
|
||||
val libPath = "$libDir/$libFileName"
|
||||
// Include architecture name in temporary filename in order to avoid conflicts
|
||||
// when multiple JVMs with different architectures running at the same time
|
||||
val uuid = UUID.randomUUID().toString()
|
||||
val extractedLibFileName = String.format("secp256k1-%s-%s", uuid, libFileName)
|
||||
val extractedLckFileName = "$extractedLibFileName.lck"
|
||||
val extractedLibFile = File(targetDirectory, extractedLibFileName)
|
||||
val extractedLckFile = File(targetDirectory, extractedLckFileName)
|
||||
return try {
|
||||
// Extract a native library file into the target directory
|
||||
val reader = NativeSecp256k1Loader::class.java.getResourceAsStream(libPath)
|
||||
if (!extractedLckFile.exists()) {
|
||||
FileOutputStream(extractedLckFile).close()
|
||||
}
|
||||
val writer = FileOutputStream(extractedLibFile)
|
||||
try {
|
||||
val buffer = ByteArray(8192)
|
||||
var bytesRead = reader.read(buffer)
|
||||
while (bytesRead != -1) {
|
||||
writer.write(buffer, 0, bytesRead)
|
||||
bytesRead = reader.read(buffer)
|
||||
}
|
||||
} finally {
|
||||
// Delete the extracted lib file on JVM exit.
|
||||
extractedLibFile.deleteOnExit()
|
||||
extractedLckFile.deleteOnExit()
|
||||
writer.close()
|
||||
reader.close()
|
||||
}
|
||||
|
||||
// Set executable (x) flag to enable Java to load the native library
|
||||
extractedLibFile.setReadable(true)
|
||||
extractedLibFile.setWritable(true, true)
|
||||
extractedLibFile.setExecutable(true)
|
||||
|
||||
// Check whether the contents are properly copied from the resource folder
|
||||
NativeSecp256k1Loader::class.java.getResourceAsStream(libPath).use { nativeIn ->
|
||||
FileInputStream(extractedLibFile).use { extractedLibIn ->
|
||||
if (!nativeIn.contentsEquals(extractedLibIn)) {
|
||||
throw RuntimeException(
|
||||
String.format(
|
||||
"Failed to write a native library file at %s",
|
||||
extractedLibFile
|
||||
)
|
||||
)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
loadNativeLibrary(targetDirectory, extractedLibFileName)
|
||||
} catch (e: IOException) {
|
||||
System.err.println(e.message)
|
||||
false
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Loads native library using the given path and name of the library.
|
||||
*
|
||||
* @param path Path of the native library.
|
||||
* @param name Name of the native library.
|
||||
* @return True for successfully loading; false otherwise.
|
||||
*/
|
||||
private fun loadNativeLibrary(path: String, name: String): Boolean {
|
||||
val libPath = File(path, name)
|
||||
return if (libPath.exists()) {
|
||||
try {
|
||||
System.load(File(path, name).absolutePath)
|
||||
true
|
||||
} catch (e: UnsatisfiedLinkError) {
|
||||
System.err.println("Failed to load native library:$name. osinfo: ${OSInfo.nativeSuffix}")
|
||||
System.err.println(e)
|
||||
false
|
||||
}
|
||||
} else {
|
||||
false
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Loads secp256k1 native library using given path and name of the library.
|
||||
*
|
||||
* @throws
|
||||
*/
|
||||
private fun loadSecp256k1NativeLibrary() {
|
||||
if (extracted) {
|
||||
return
|
||||
}
|
||||
|
||||
// Try loading library from fr.acinq.secp256k1.lib.path library path */
|
||||
val libraryPath = System.getProperty("fr.acinq.secp256k1.lib.path")
|
||||
val libraryName = System.getProperty("fr.acinq.secp256k1.lib.name") ?: System.mapLibraryName("secp256k1-jni-${OSInfo.nativeSuffix}")
|
||||
if (libraryPath != null) {
|
||||
if (loadNativeLibrary(libraryPath, libraryName)) {
|
||||
extracted = true
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
// Load the os-dependent library from the jar file
|
||||
val packagePath = NativeSecp256k1Loader::class.java.getPackage().name.replace("\\.".toRegex(), "/")
|
||||
val embeddedLibraryPath = "/$packagePath/native"
|
||||
val hasNativeLib = NativeSecp256k1Loader::class.java.getResource("$embeddedLibraryPath/$libraryName") != null
|
||||
if (!hasNativeLib) {
|
||||
error("No native library found: at $embeddedLibraryPath/$libraryName")
|
||||
}
|
||||
|
||||
// Try extracting the library from jar
|
||||
if (extractAndLoadLibraryFile(embeddedLibraryPath, libraryName, tempDir.absolutePath)) {
|
||||
extracted = true
|
||||
return
|
||||
}
|
||||
extracted = false
|
||||
return
|
||||
}
|
||||
}
|
||||
214
jni/src/jvmMain/kotlin/fr/acinq/secp256k1/jni/OSInfo.kt
Normal file
214
jni/src/jvmMain/kotlin/fr/acinq/secp256k1/jni/OSInfo.kt
Normal file
@@ -0,0 +1,214 @@
|
||||
package fr.acinq.secp256k1.jni
|
||||
|
||||
import java.io.ByteArrayOutputStream
|
||||
import java.io.IOException
|
||||
import java.util.*
|
||||
|
||||
/**
|
||||
* Provides OS name and architecture name.
|
||||
*
|
||||
* @author leo
|
||||
*/
|
||||
@Suppress("DuplicatedCode")
|
||||
internal object OSInfo {
|
||||
private val archMapping = HashMap<String, String>()
|
||||
private const val X86 = "x86"
|
||||
private const val X86_64 = "x86_64"
|
||||
private const val IA64_32 = "ia64_32"
|
||||
private const val IA64 = "ia64"
|
||||
private const val PPC = "ppc"
|
||||
private const val PPC64 = "ppc64"
|
||||
|
||||
@JvmStatic val nativeSuffix: String get() = "$os-$arch"
|
||||
|
||||
@JvmStatic val os: String get() = translateOSName(System.getProperty("os.name"))
|
||||
|
||||
@JvmStatic val hardwareName: String get() =
|
||||
try {
|
||||
val p = Runtime.getRuntime().exec("uname -m")
|
||||
p.waitFor()
|
||||
val input = p.inputStream
|
||||
input.use {
|
||||
val b = ByteArrayOutputStream()
|
||||
val buf = ByteArray(32)
|
||||
var readLen = it.read(buf, 0, buf.size)
|
||||
while (readLen >= 0) {
|
||||
b.write(buf, 0, readLen)
|
||||
readLen = it.read(buf, 0, buf.size)
|
||||
}
|
||||
b.toString()
|
||||
}
|
||||
} catch (e: Throwable) {
|
||||
System.err.println("Error while running uname -m: " + e.message)
|
||||
"unknown"
|
||||
}
|
||||
|
||||
@JvmStatic
|
||||
private fun resolveArmArchType(): String {
|
||||
if (System.getProperty("os.name").contains("Linux")) {
|
||||
val armType = hardwareName
|
||||
// armType (uname -m) can be armv5t, armv5te, armv5tej, armv5tejl, armv6, armv7, armv7l, aarch64, i686// ignored: fall back to "arm" arch (soft-float ABI)
|
||||
// ignored: fall back to "arm" arch (soft-float ABI)
|
||||
// determine if first JVM found uses ARM hard-float ABI
|
||||
when {
|
||||
armType.startsWith("armv6") -> {
|
||||
// Raspberry PI
|
||||
return "armv6"
|
||||
}
|
||||
armType.startsWith("armv7") -> {
|
||||
// Generic
|
||||
return "armv7"
|
||||
}
|
||||
armType.startsWith("armv5") -> {
|
||||
// Use armv5, soft-float ABI
|
||||
return "arm"
|
||||
}
|
||||
armType == "aarch64" -> {
|
||||
// Use arm64
|
||||
return "arm64"
|
||||
}
|
||||
|
||||
// Java 1.8 introduces a system property to determine armel or armhf
|
||||
// http://bugs.java.com/bugdatabase/view_bug.do?bug_id=8005545
|
||||
|
||||
// For java7, we stil need to if run some shell commands to determine ABI of JVM
|
||||
else -> {
|
||||
val abi = System.getProperty("sun.arch.abi")
|
||||
if (abi != null && abi.startsWith("gnueabihf")) {
|
||||
return "armv7"
|
||||
}
|
||||
|
||||
// For java7, we stil need to if run some shell commands to determine ABI of JVM
|
||||
val javaHome = System.getProperty("java.home")
|
||||
try {
|
||||
// determine if first JVM found uses ARM hard-float ABI
|
||||
var exitCode = Runtime.getRuntime().exec("which readelf").waitFor()
|
||||
if (exitCode == 0) {
|
||||
val cmdarray = arrayOf(
|
||||
"/bin/sh", "-c", "find '" + javaHome +
|
||||
"' -name 'libjvm.so' | head -1 | xargs readelf -A | " +
|
||||
"grep 'Tag_ABI_VFP_args: VFP registers'"
|
||||
)
|
||||
exitCode = Runtime.getRuntime().exec(cmdarray).waitFor()
|
||||
if (exitCode == 0) {
|
||||
return "armv7"
|
||||
}
|
||||
} else {
|
||||
System.err.println(
|
||||
"WARNING! readelf not found. Cannot check if running on an armhf system, " +
|
||||
"armel architecture will be presumed."
|
||||
)
|
||||
}
|
||||
} catch (e: IOException) {
|
||||
// ignored: fall back to "arm" arch (soft-float ABI)
|
||||
} catch (e: InterruptedException) {
|
||||
// ignored: fall back to "arm" arch (soft-float ABI)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Java 1.8 introduces a system property to determine armel or armhf
|
||||
// http://bugs.java.com/bugdatabase/view_bug.do?bug_id=8005545
|
||||
val abi = System.getProperty("sun.arch.abi")
|
||||
if (abi != null && abi.startsWith("gnueabihf")) {
|
||||
return "armv7"
|
||||
}
|
||||
|
||||
// For java7, we stil need to if run some shell commands to determine ABI of JVM
|
||||
val javaHome = System.getProperty("java.home")
|
||||
try {
|
||||
// determine if first JVM found uses ARM hard-float ABI
|
||||
var exitCode = Runtime.getRuntime().exec("which readelf").waitFor()
|
||||
if (exitCode == 0) {
|
||||
val cmdarray = arrayOf(
|
||||
"/bin/sh", "-c", "find '" + javaHome +
|
||||
"' -name 'libjvm.so' | head -1 | xargs readelf -A | " +
|
||||
"grep 'Tag_ABI_VFP_args: VFP registers'"
|
||||
)
|
||||
exitCode = Runtime.getRuntime().exec(cmdarray).waitFor()
|
||||
if (exitCode == 0) {
|
||||
return "armv7"
|
||||
}
|
||||
} else {
|
||||
System.err.println(
|
||||
"WARNING! readelf not found. Cannot check if running on an armhf system, " +
|
||||
"armel architecture will be presumed."
|
||||
)
|
||||
}
|
||||
} catch (e: IOException) {
|
||||
// ignored: fall back to "arm" arch (soft-float ABI)
|
||||
} catch (e: InterruptedException) {
|
||||
// ignored: fall back to "arm" arch (soft-float ABI)
|
||||
}
|
||||
}
|
||||
// Use armv5, soft-float ABI
|
||||
return "arm"
|
||||
}
|
||||
|
||||
// For Android
|
||||
@JvmStatic
|
||||
val arch: String?
|
||||
get() {
|
||||
val systemOsArch = System.getProperty("os.arch")
|
||||
val osArch =
|
||||
if (systemOsArch.startsWith("arm")) {
|
||||
resolveArmArchType()
|
||||
} else {
|
||||
val lc = systemOsArch.toLowerCase(Locale.US)
|
||||
if (archMapping.containsKey(lc)) return archMapping[lc]
|
||||
systemOsArch
|
||||
}
|
||||
return translateArchNameToFolderName(osArch)
|
||||
}
|
||||
|
||||
@JvmStatic
|
||||
fun translateOSName(osName: String): String =
|
||||
when {
|
||||
osName.contains("Windows") -> "mingw"
|
||||
osName.contains("Mac") || osName.contains("Darwin") -> "darwin"
|
||||
osName.contains("Linux") -> "linux"
|
||||
osName.contains("AIX") -> "aix"
|
||||
else -> osName.replace("\\W".toRegex(), "")
|
||||
}
|
||||
|
||||
@JvmStatic
|
||||
fun translateArchNameToFolderName(archName: String): String = archName.replace("\\W".toRegex(), "")
|
||||
|
||||
init {
|
||||
// x86 mappings
|
||||
archMapping[X86] = X86
|
||||
archMapping["i386"] = X86
|
||||
archMapping["i486"] = X86
|
||||
archMapping["i586"] = X86
|
||||
archMapping["i686"] = X86
|
||||
archMapping["pentium"] = X86
|
||||
|
||||
// x86_64 mappings
|
||||
archMapping[X86_64] = X86_64
|
||||
archMapping["amd64"] = X86_64
|
||||
archMapping["em64t"] = X86_64
|
||||
archMapping["universal"] = X86_64 // Needed for openjdk7 in Mac
|
||||
|
||||
// Itenium 64-bit mappings
|
||||
archMapping[IA64] = IA64
|
||||
archMapping["ia64w"] = IA64
|
||||
|
||||
// Itenium 32-bit mappings, usually an HP-UX construct
|
||||
archMapping[IA64_32] = IA64_32
|
||||
archMapping["ia64n"] = IA64_32
|
||||
|
||||
// PowerPC mappings
|
||||
archMapping[PPC] = PPC
|
||||
archMapping["power"] = PPC
|
||||
archMapping["powerpc"] = PPC
|
||||
archMapping["power_pc"] = PPC
|
||||
archMapping["power_rs"] = PPC
|
||||
|
||||
// TODO: PowerPC 64bit mappings
|
||||
archMapping[PPC64] = PPC64
|
||||
archMapping["power64"] = PPC64
|
||||
archMapping["powerpc64"] = PPC64
|
||||
archMapping["power_pc64"] = PPC64
|
||||
archMapping["power_rs64"] = PPC64
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user