add: import scrypt 1.4.0

[gigi.git] / tests / com / lambdaworks / crypto / test / CryptoTestUtil.java

diff --git a/tests/com/lambdaworks/crypto/test/CryptoTestUtil.java b/tests/com/lambdaworks/crypto/test/CryptoTestUtil.java
new file mode 100644 (file)
index 0000000..418c5f9
--- /dev/null
+++ b/tests/com/lambdaworks/crypto/test/CryptoTestUtil.java
@@ -0,0 +1,22 @@
+// Copyright (C) 2011 - Will Glozer.  All rights reserved.
+
+package com.lambdaworks.crypto.test;
+
+public class CryptoTestUtil {
+    public static byte[] decode(String str) {
+        byte[] bytes = new byte[str.length() / 2];
+        int index = 0;
+
+        for (int i = 0; i < str.length(); i += 2) {
+            int high = hexValue(str.charAt(i));
+            int low = hexValue(str.charAt(i + 1));
+            bytes[index++] = (byte) ((high << 4) + low);
+        }
+
+        return bytes;
+    }
+
+    public static int hexValue(char c) {
+        return c >= 'a' ? c - 87 : c - 48;
+    }
+}