Md5 String : MD5.xml « Security « Android

1. Android
2. Security
3. MD5.xml

Md5 String

 
/*
 * Copyright 2010 Renren, Inc.
 *
 * Licensed 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 com.renren.api.connect.android;

import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;


 class Util {
    public static String md5(String string) {
      if (string == null || string.trim().length() < 1) {
        return null;
      }
      try {
        return getMD5(string.getBytes("UTF-8"));
      } catch (UnsupportedEncodingException e) {
        throw new RuntimeException(e.getMessage(), e);
      }
    }

    private static String getMD5(byte[] source) {
      try {
        MessageDigest md5 = MessageDigest.getInstance("MD5");
        StringBuffer result = new StringBuffer();
        for (byte b : md5.digest(source)) {
          result.append(Integer.toHexString((b & 0xf0) >>> 4));
          result.append(Integer.toHexString(b & 0x0f));
        }
        return result.toString();
      } catch (Exception e) {
        throw new RuntimeException(e.getMessage(), e);
      }
    }

}

   
  

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