Bech32: use ByteUtils.concat() in verifyChecksum()

schildbach · Feb 25, 2025 · 5edb96c · 5edb96c
1 parent 9683514
commit 5edb96c
Showing 1 changed file with 2 additions and 3 deletions.
diff --git a/base/src/main/java/org/bitcoinj/base/Bech32.java b/base/src/main/java/org/bitcoinj/base/Bech32.java
@@ -18,6 +18,7 @@
 
 import org.bitcoinj.base.exceptions.AddressFormatException;
 import org.bitcoinj.base.internal.ByteArray;
+import org.bitcoinj.base.internal.ByteUtils;
 
 import java.io.ByteArrayOutputStream;
 import java.util.Arrays;
@@ -197,9 +198,7 @@ private static byte[] expandHrp(final String hrp) {
      */
     private static Encoding verifyChecksum(final String hrp, final byte[] values) {
         byte[] hrpExpanded = expandHrp(hrp);
-        byte[] combined = new byte[hrpExpanded.length + values.length];
-        System.arraycopy(hrpExpanded, 0, combined, 0, hrpExpanded.length);
-        System.arraycopy(values, 0, combined, hrpExpanded.length, values.length);
+        byte[] combined = ByteUtils.concat(hrpExpanded, values);
         final int check = polymod(combined);
         if (check == BECH32_CONST)
             return Encoding.BECH32;