Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class Main {
    public static String sha1(String string) {
        byte[] hash;
        try {
            MessageDigest sha1 = MessageDigest.getInstance("SHA-1");
            sha1.update(string.getBytes("UTF-8"));
            hash = sha1.digest();
        } catch (NoSuchAlgorithmException e) {
            throw new RuntimeException("Huh, SHA-1 should be supported?", e);
        } catch (UnsupportedEncodingException e) {
            throw new RuntimeException("Huh, SHA-1 UTF-8 should be supported?", e);
        }
        StringBuilder hex = new StringBuilder(hash.length * 2);
        for (byte b : hash) {
            if ((b & 0xFF) < 0x10)
                hex.append("0");
            hex.append(Integer.toHexString(b & 0xFF));
        }
        return hex.toString();
    }
}