Java Digest digest(String strSrc, String encName)

Description

digest

License

Apache License

Declaration

public static String digest(String strSrc, String encName) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

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

public class Main {
    private static final char[] hexArray = "0123456789ABCDEF".toCharArray();

    public static String digest(String strSrc, String encName) {
        MessageDigest md = null;//w ww  .java2  s  . c om
        String strDes = null;
        byte[] bt = strSrc.getBytes();
        try {
            if (encName == null || encName.equals("")) {
                encName = "MD5";
            }
            md = MessageDigest.getInstance(encName);
            md.update(bt);
            strDes = bytesToHexString(md.digest()); // to HexString
        } catch (NoSuchAlgorithmException e) {
            return null;
        }
        return strDes;
    }

    public static String bytesToHexString(byte[] bytes) {
        char[] hexChars = new char[bytes.length * 2];
        for (int j = 0; j < bytes.length; j++) {
            int v = bytes[j] & 0xFF;
            hexChars[j * 2] = hexArray[v >>> 4];
            hexChars[j * 2 + 1] = hexArray[v & 0x0F];
        }
        return new String(hexChars);
    }
}

Related

1. digest(String s, String algorithm)
2. digest(String source)
3. digest(String source, byte[] salt)
4. digest(String source, String algorythm)
5. digest(String strSource)
6. digest(String text)
7. digest(String text, String algorithm)
8. digest(String token)
9. digest(String type, byte[] bytes)