/*
* 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);
}
}
}