Android Open Source - EnterpriseShow Encryption And Decryption

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License

The source code is released under:

This is free and unencumbered software released into the public domain. Anyone is free to copy, modify, publish, use, compile, sell, or distribute this software, either in source code form or as a co...

Java Source Code

package com.ruixinyuan.producttrainingfinal.utils;
/*from   ww w.  j a v  a 2s  . co m*/
import java.security.MessageDigest;

/*
 *@user vicentliu
 *@time 2013-6-20????5:22:01
 *@package com.ruixinyuan.producttrainingfinal.utils
 */
public class EncryptionAndDecryption {

 // MD5???32??
    public static String MD5(String str) {
        MessageDigest md5 = null;
        try {
            md5 = MessageDigest.getInstance("MD5");
        } catch (Exception e) {
            e.printStackTrace();
            return "";
        }
 
        char[] charArray = str.toCharArray();
        byte[] byteArray = new byte[charArray.length];
 
        for (int i = 0; i < charArray.length; i++) {
            byteArray[i] = (byte) charArray[i];
        }
        byte[] md5Bytes = md5.digest(byteArray);
 
        StringBuffer hexValue = new StringBuffer();
        for (int i = 0; i < md5Bytes.length; i++) {
            int val = ((int) md5Bytes[i]) & 0xff;
            if (val < 16) {
                hexValue.append("0");
            }
            hexValue.append(Integer.toHexString(val));
        }
        return hexValue.toString();
    }
}

Java Source Code List

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