Java SHA256 SHA256(String text)

Description

SHA

License

Open Source License

Declaration

public static String SHA256(String text) throws NoSuchAlgorithmException, UnsupportedEncodingException 

Method Source Code

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

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

public class Main {
    public static String SHA256(String text) throws NoSuchAlgorithmException, UnsupportedEncodingException {
        MessageDigest md;/*from  w  w  w. ja  v a 2  s.c om*/
        md = MessageDigest.getInstance("SHA-256");//or md5 whatever...
        md.update(text.getBytes("iso-8859-1"), 0, text.length());
        byte[] sha256hash = md.digest();
        return convertToHex(sha256hash);
    }

    private static String convertToHex(byte[] data) {
        StringBuffer buf = new StringBuffer();
        for (int i = 0; i < data.length; i++) {
            int halfbyte = (data[i] >>> 4) & 0x0F;
            int two_halfs = 0;
            do {
                if ((0 <= halfbyte) && (halfbyte <= 9))
                    buf.append((char) ('0' + halfbyte));
                else
                    buf.append((char) ('a' + (halfbyte - 10)));
                halfbyte = data[i] & 0x0F;
            } while (two_halfs++ < 1);
        }
        return buf.toString();
    }
}

Related

1. sha256(String str)
2. sha256(String str)
3. sha256(String string)
4. sha256(String string, String secret)
5. sha256(String strSrc)
6. SHA256(String text)
7. sha256(String text)
8. SHA256(String texto)
9. SHA256Binary(String toHash)