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 input) throws NoSuchAlgorithmException, UnsupportedEncodingException {
        MessageDigest md = MessageDigest.getInstance("SHA1");
        md.update(input.getBytes("UTF-8"));
        byte[] output = md.digest();
        return bytesToHex(output);
    }

    private static String bytesToHex(byte[] b) {
        char hexDigit[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
        StringBuilder buf = new StringBuilder();
        for (int j = 0; j < b.length; j++) {
            buf.append(hexDigit[(b[j] >> 4) & 0x0f]);
            buf.append(hexDigit[b[j] & 0x0f]);
        }
        return buf.toString();
    }
}