Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import java.security.MessageDigest;

import java.util.Formatter;

public class Main {
    private static final String ERROR_SHA1 = "error_sha1";
    private static final String UTF_8 = "UTF-8";

    public static String toSHA1(String s) {
        MessageDigest md = null;
        byte[] sha1hash = null;
        try {
            md = MessageDigest.getInstance("SHA-1");
            sha1hash = new byte[40];
            md.update(s.getBytes(UTF_8), 0, s.length());
        } catch (Exception e) {
            return ERROR_SHA1;
        }
        sha1hash = md.digest();
        Formatter formatter = new Formatter();
        for (byte b : sha1hash) {
            formatter.format("%02x", b);
        }
        return formatter.toString();
    }
}