1 files changed, 40 insertions, 0 deletions
diff --git a/libraries/spongycastle/core/src/main/java/org/spongycastle/crypto/params/TweakableBlockCipherParameters.java b/libraries/spongycastle/core/src/main/java/org/spongycastle/crypto/params/TweakableBlockCipherParameters.java
new file mode 100644
index 000000000..2a12186ea
--- /dev/null
+++ b/libraries/spongycastle/core/src/main/java/org/spongycastle/crypto/params/TweakableBlockCipherParameters.java
@@ -0,0 +1,40 @@
+package org.spongycastle.crypto.params;
+
+import org.spongycastle.crypto.CipherParameters;
+import org.spongycastle.util.Arrays;
+
+/**
+ * Parameters for tweakable block ciphers.
+ */
+public class TweakableBlockCipherParameters
+    implements CipherParameters
+{
+    private final byte[] tweak;
+    private final KeyParameter key;
+
+    public TweakableBlockCipherParameters(final KeyParameter key, final byte[] tweak)
+    {
+        this.key = key;
+        this.tweak = Arrays.clone(tweak);
+    }
+
+    /**
+     * Gets the key.
+     *
+     * @return the key to use, or <code>null</code> to use the current key.
+     */
+    public KeyParameter getKey()
+    {
+        return key;
+    }
+
+    /**
+     * Gets the tweak value.
+     *
+     * @return the tweak to use, or <code>null</code> to use the current tweak.
+     */
+    public byte[] getTweak()
+    {
+        return tweak;
+    }
+}