Restructure and generalize
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1ddde97548
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1
.gitignore
vendored
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1
.gitignore
vendored
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/target/
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26
pom.xml
26
pom.xml
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@ -3,7 +3,7 @@
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>jmaa</groupId>
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<groupId>jmaa.pbc</groupId>
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<artifactId>pbc-vanity-address</artifactId>
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<packaging>jar</packaging>
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<version>4.0.0</version>
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@ -36,8 +36,8 @@
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</dependency>
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<dependency>
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<groupId>com.partisiablockchain.core</groupId>
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<artifactId>blockchain</artifactId>
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<version>4.74.0</version>
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<artifactId>contract</artifactId>
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<version>4.55.0</version>
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</dependency>
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<dependency>
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<groupId>ch.qos.logback</groupId>
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@ -46,6 +46,26 @@
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.codehaus.mojo</groupId>
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<artifactId>exec-maven-plugin</artifactId>
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<version>3.0.0</version>
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<executions>
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<execution>
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<id>execute</id>
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<phase>package</phase>
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<goals><goal>exec</goal></goals>
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</execution>
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</executions>
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<configuration>
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<executable>java</executable>
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</configuration>
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</plugin>
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</plugins>
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</build>
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<properties>
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<maven.compiler.source>17</maven.compiler.source>
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<maven.compiler.target>17</maven.compiler.target>
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3
run.sh
Executable file
3
run.sh
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#!/usr/bin/env bash
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echo $*
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mvn compile exec:java -Dexec.mainClass="jmaa.pbc.PbcVanityAddressSearcher" -Dexec.args="$*"
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77
src/main/java/jmaa/pbc/PbcVanityAddressSearcher.java
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77
src/main/java/jmaa/pbc/PbcVanityAddressSearcher.java
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package jmaa.pbc;
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import java.util.List;
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import java.util.ArrayList;
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import com.partisiablockchain.BlockchainAddress;
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import com.partisiablockchain.crypto.BlockchainPublicKey;
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import com.partisiablockchain.crypto.KeyPair;
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/** Search for PBC vanity addresses.
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*
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* <p>Based on Jesper Balman Gravgaard's original version.
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*/
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public final class PbcVanityAddressSearcher {
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private static final int NUM_THREADS = 8;
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private static final long MAX_ITERATIONS_PER_THREAD = 100_000_000;
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private static final long INITIAL_PING_INTERVAL = 10_000;
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public static void main(String[] args) throws InterruptedException {
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System.out.println("Args: " + List.of(args));
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searchForPrivateKeyWithVanityAddress(args[0], args[1]);
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}
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/**
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* @param vanityPrefix Desired address prefix
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*/
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private static void searchForPrivateKeyWithVanityAddress(String vanityPrefix, String vanitySuffix) throws InterruptedException {
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if (!vanityPrefix.startsWith("00")) {
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throw new IllegalArgumentException("Vanity prefix must start with 00.");
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}
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System.out.println("Searching for private key for address prefix \"%s\" and suffix \"%s\" ".formatted(vanityPrefix, vanitySuffix));
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List<Thread> searchers = new ArrayList<>();
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for(int threadIdx=0;threadIdx<NUM_THREADS ;threadIdx++) {
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final Thread searcher = new Thread(new KeySearcher(threadIdx, vanityPrefix, vanitySuffix));
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searcher.start();
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searchers.add(searcher);
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}
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for (Thread searcher : searchers) {
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searcher.join();
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}
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}
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private record KeySearcher(int threadIdx, String vanityPrefix, String vanitySuffix) implements Runnable {
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@Override
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public void run() {
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long start = System.nanoTime();
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long pingInterval = INITIAL_PING_INTERVAL;
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for(int iterationIdx=1;iterationIdx<MAX_ITERATIONS_PER_THREAD;iterationIdx++) {
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// Generate random keypair
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final KeyPair keyPair = new KeyPair();
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final BlockchainAddress address = keyPair.getPublic().createAddress();
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// Check vanity
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final String addressAsString = address.writeAsString();
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final boolean satisfiesVanity = addressAsString.startsWith(vanityPrefix) && addressAsString.endsWith(vanitySuffix);
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// Output if vain enough
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if(satisfiesVanity) {
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System.out.println("[%2d:%10d] match: addr=%s - pk=%s".formatted(threadIdx, iterationIdx, addressAsString, keyPair.getPrivateKey().toString(16)));
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}
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// Ping
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if (iterationIdx % pingInterval == 0) {
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final long now = System.nanoTime();
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final long duration = (now - start) / 1_000_000_000;
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System.out.println("[%2d:%10d] ping at %d sec".formatted(threadIdx, iterationIdx, duration));
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pingInterval = pingInterval * 2;
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}
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}
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}
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}
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}
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@ -1,52 +0,0 @@
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package jmaa.pbc;
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/** Search for PBC vanity addresses.
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*
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* <p>Based on Jesper Balman Gravgaard's original version.
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*/
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public final class PbcVanityAddressSearcher {
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/** The vanity prefix to hunt for. */
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public static final String VANITY_PREFIX = "00badc0de";
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@Test
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void randomKeys() throws InterruptedException {
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List<Thread> searchers = new ArrayList<>();
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for(int i=0;i<8;i++) {
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final Thread searcher = new Thread(new KeySearcher(i));
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searcher.start();
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searchers.add(searcher);
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}
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for (Thread searcher : searchers) {
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searcher.join();
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}
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}
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record KeySearcher(int id) implements Runnable {
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@Override
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public void run() {
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long start = System.nanoTime();
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for(int i=0;i<100_000_000;i++) {
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final KeyPair keyPair = new KeyPair();
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final BlockchainPublicKey publicKey = keyPair.getPublic();
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final BlockchainAddress address = publicKey.createAddress();
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if(address.writeAsString().startsWith(VANITY_PREFIX)) {
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System.out.println("["+id+"] match: "+address.writeAsString()+ " - "+keyPair.getPrivateKey().toString(16));
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}
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if (i % 1_000_000 == 0) {
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final long now = System.nanoTime();
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final long duration = (now - start) / 1_000_000;
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System.out.print("["+id+":"+i+"] "+duration+" ");
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start = now;
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}
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if ((id==0) && (i % 1_000_000 == 10_000)) {
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System.out.println();
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}
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}
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}
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}
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}
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