Java MD5 String md5(String source, int bit)

Description

md

License

Open Source License

Declaration

public static String md5(String source, int bit) throws NoSuchAlgorithmException 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class Main {
    public static String md5(String source, int bit) throws NoSuchAlgorithmException {
        MessageDigest md = MessageDigest.getInstance("MD5");
        md.update(source.getBytes());/*from   w ww  .j  a va  2s .  c  om*/
        byte b[] = md.digest();
        int i;
        StringBuffer buf = new StringBuffer("");
        for (int offset = 0; offset < b.length; offset++) {
            i = b[offset];
            if (i < 0)
                i += 256;
            if (i < 16)
                buf.append("0");
            buf.append(Integer.toHexString(i));
        }
        if (bit == 16) {
            return buf.substring(8, 24);
        }
        if (bit == 32) {
            return buf.toString();
        }
        return null;
    }
}

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