1 files changed, 85 insertions, 0 deletions
diff --git a/qpid/java/broker/src/test/java/org/apache/qpid/server/security/auth/sasl/SaslUtil.java b/qpid/java/broker/src/test/java/org/apache/qpid/server/security/auth/sasl/SaslUtil.java
new file mode 100644
index 0000000000..251ebc4c81
--- /dev/null
+++ b/qpid/java/broker/src/test/java/org/apache/qpid/server/security/auth/sasl/SaslUtil.java
@@ -0,0 +1,85 @@
+/*
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+package org.apache.qpid.server.security.auth.sasl;
+
+import java.security.MessageDigest;
+
+import javax.crypto.Mac;
+import javax.crypto.spec.SecretKeySpec;
+
+public class SaslUtil
+{
+
+    private static byte SEPARATOR = 0;
+
+    public static byte[] generatePlainClientResponse(String userName, String userPassword) throws Exception
+    {
+        byte[] password = userPassword.getBytes("UTF8");
+        byte user[] = userName.getBytes("UTF8");
+        byte response[] = new byte[password.length + user.length + 2];
+        int size = 0;
+        response[size++] = SEPARATOR;
+        System.arraycopy(user, 0, response, size, user.length);
+        size += user.length;
+        response[size++] = SEPARATOR;
+        System.arraycopy(password, 0, response, size, password.length);
+        return response;
+    }
+
+    public static byte[] generateCramMD5HexClientResponse(String userName, String userPassword, byte[] challengeBytes)
+            throws Exception
+    {
+        String macAlgorithm = "HmacMD5";
+        byte[] digestedPasswordBytes = MessageDigest.getInstance("MD5").digest(userPassword.getBytes("UTF-8"));
+        byte[] hexEncodedDigestedPasswordBytes = toHex(digestedPasswordBytes).getBytes("UTF-8");
+        Mac mac = Mac.getInstance(macAlgorithm);
+        mac.init(new SecretKeySpec(hexEncodedDigestedPasswordBytes, macAlgorithm));
+        final byte[] messageAuthenticationCode = mac.doFinal(challengeBytes);
+        String responseAsString = userName + " " + toHex(messageAuthenticationCode);
+        return responseAsString.getBytes();
+    }
+
+    public static byte[] generateCramMD5ClientResponse(String userName, String userPassword, byte[] challengeBytes)
+            throws Exception
+    {
+        String macAlgorithm = "HmacMD5";
+        Mac mac = Mac.getInstance(macAlgorithm);
+        mac.init(new SecretKeySpec(userPassword.getBytes("UTF-8"), macAlgorithm));
+        final byte[] messageAuthenticationCode = mac.doFinal(challengeBytes);
+        String responseAsString = userName + " " + toHex(messageAuthenticationCode);
+        return responseAsString.getBytes();
+    }
+
+    public static String toHex(byte[] data)
+    {
+        StringBuffer hash = new StringBuffer();
+        for (int i = 0; i < data.length; i++)
+        {
+            String hex = Integer.toHexString(0xFF & data[i]);
+            if (hex.length() == 1)
+            {
+                hash.append('0');
+            }
+            hash.append(hex);
+        }
+        return hash.toString();
+    }
+}