From 82eb0810895b702ea6bf6c10a5155cc1af5bdb91 Mon Sep 17 00:00:00 2001
From: napoly <napolytan@protonmail.com>
Date: Thu, 14 Mar 2024 17:12:42 +0100
Subject: [PATCH] Create task to generate key pairs (#823)

---
 build.gradle                                  |  5 +++++
 .../java/haveno/common/crypto/Encryption.java | 21 ++++++++----------
 .../haveno/core/util/GenerateKeyPairs.java}   | 22 +++++++++----------
 3 files changed, 25 insertions(+), 23 deletions(-)
 rename core/src/{test/java/haveno/core/util/GenerateKeypairs.java => main/java/haveno/core/util/GenerateKeyPairs.java} (66%)

diff --git a/build.gradle b/build.gradle
index 58ac6489b9..625ac4e2c6 100644
--- a/build.gradle
+++ b/build.gradle
@@ -436,6 +436,11 @@ configure(project(':core')) {
         systemProperty 'jdk.attach.allowAttachSelf', true
     }
 
+    task generateKeypairs(type: JavaExec) {
+        mainClass = 'haveno.core.util.GenerateKeyPairs'
+        classpath = sourceSets.main.runtimeClasspath
+    }
+
     task havenoDeps {
         doLast {
             // get monero binaries download url
diff --git a/common/src/main/java/haveno/common/crypto/Encryption.java b/common/src/main/java/haveno/common/crypto/Encryption.java
index d65fff3bde..93d5a527fb 100644
--- a/common/src/main/java/haveno/common/crypto/Encryption.java
+++ b/common/src/main/java/haveno/common/crypto/Encryption.java
@@ -19,16 +19,6 @@ package haveno.common.crypto;
 
 import haveno.common.util.Hex;
 import haveno.common.util.Utilities;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import javax.crypto.Cipher;
-import javax.crypto.KeyGenerator;
-import javax.crypto.Mac;
-import javax.crypto.SecretKey;
-import javax.crypto.spec.OAEPParameterSpec;
-import javax.crypto.spec.PSource;
-import javax.crypto.spec.SecretKeySpec;
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.security.InvalidKeyException;
@@ -43,10 +33,17 @@ import java.security.spec.InvalidKeySpecException;
 import java.security.spec.MGF1ParameterSpec;
 import java.security.spec.X509EncodedKeySpec;
 import java.util.Arrays;
+import javax.crypto.Cipher;
+import javax.crypto.KeyGenerator;
+import javax.crypto.Mac;
+import javax.crypto.SecretKey;
+import javax.crypto.spec.OAEPParameterSpec;
+import javax.crypto.spec.PSource;
+import javax.crypto.spec.SecretKeySpec;
+import lombok.extern.slf4j.Slf4j;
 
+@Slf4j
 public class Encryption {
-    private static final Logger log = LoggerFactory.getLogger(Encryption.class);
-
     public static final String ASYM_KEY_ALGO = "RSA";
     private static final String ASYM_CIPHER = "RSA/ECB/OAEPWithSHA-256AndMGF1PADDING";
 
diff --git a/core/src/test/java/haveno/core/util/GenerateKeypairs.java b/core/src/main/java/haveno/core/util/GenerateKeyPairs.java
similarity index 66%
rename from core/src/test/java/haveno/core/util/GenerateKeypairs.java
rename to core/src/main/java/haveno/core/util/GenerateKeyPairs.java
index ce36afc586..94130b1b12 100644
--- a/core/src/test/java/haveno/core/util/GenerateKeypairs.java
+++ b/core/src/main/java/haveno/core/util/GenerateKeyPairs.java
@@ -12,29 +12,29 @@ import org.bitcoinj.core.Utils;
 import haveno.common.crypto.Encryption;
 
 /**
- * This utility generates and prints public/private keypairs
+ * This utility generates and prints public/private key-pairs
  * which can be used to register arbitrators on the network.
  */
-public class GenerateKeypairs {
-    
+public class GenerateKeyPairs {
+
     public static void main(String[] args) {
-        
-        // generate public/private keypairs
-        List<SecretKey> secretKeys = new ArrayList<SecretKey>();
+
+        // generate public/private key-pairs
+        List<SecretKey> secretKeys = new ArrayList<>();
         for (int i = 0; i < 20; i++) {
             secretKeys.add(Encryption.generateSecretKey(256));
         }
 
-        // print keypairs
+        // print key-pairs
         System.out.println("Private keys:");
         for (SecretKey sk : secretKeys) {
-            String privKey = Utils.HEX.encode(sk.getEncoded());
-            System.out.println(privKey);
+            String privateKey = Utils.HEX.encode(sk.getEncoded());
+            System.out.println(privateKey);
         }
         System.out.println("Corresponding public keys:");
         for (SecretKey sk : secretKeys) {
-            String privKey = Utils.HEX.encode(sk.getEncoded());
-            ECKey ecKey = ECKey.fromPrivate(new BigInteger(1, Utils.HEX.decode(privKey)));
+            String privateKey = Utils.HEX.encode(sk.getEncoded());
+            ECKey ecKey = ECKey.fromPrivate(new BigInteger(1, Utils.HEX.decode(privateKey)));
             String pubKey = Utils.HEX.encode(ecKey.getPubKey());
             System.out.println(pubKey);
         }