diff --git a/components/net/sf/briar/crypto/ErasableKeyImpl.java b/components/net/sf/briar/crypto/ErasableKeyImpl.java
index b1b43ea0e22c564ed2b45fb399baffce88bcba04..34d29893c00b1b3a0e0c8f8bdb99fd469f88c50c 100644
--- a/components/net/sf/briar/crypto/ErasableKeyImpl.java
+++ b/components/net/sf/briar/crypto/ErasableKeyImpl.java
@@ -1,8 +1,5 @@
 package net.sf.briar.crypto;
 
-import java.util.ArrayList;
-import java.util.Collection;
-
 import net.sf.briar.api.crypto.ErasableKey;
 import net.sf.briar.util.ByteUtils;
 
@@ -13,7 +10,6 @@ class ErasableKeyImpl implements ErasableKey {
 	private final byte[] key;
 	private final String algorithm;
 
-	private Collection<byte[]> copies = null; // Locking: this
 	private boolean erased = false; // Locking: this
 
 	ErasableKeyImpl(byte[] key, String algorithm) {
@@ -27,11 +23,7 @@ class ErasableKeyImpl implements ErasableKey {
 
 	public synchronized byte[] getEncoded() {
 		if(erased) throw new IllegalStateException();
-		byte[] b = new byte[key.length];
-		System.arraycopy(key, 0, b, 0, key.length);
-		if(copies == null) copies = new ArrayList<byte[]>();
-		copies.add(b);
-		return b;
+		return key;
 	}
 
 	public String getFormat() {
@@ -45,7 +37,6 @@ class ErasableKeyImpl implements ErasableKey {
 	public synchronized void erase() {
 		if(erased) throw new IllegalStateException();
 		ByteUtils.erase(key);
-		if(copies != null) for(byte[] b : copies) ByteUtils.erase(b);
 		erased = true;
 	}
 }