Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertificateEncodingException;

import java.security.cert.X509Certificate;

public class Main {
    private static String getCertificateSHA1(X509Certificate certificate)
            throws NoSuchAlgorithmException, CertificateEncodingException {
        MessageDigest messageDigest = MessageDigest.getInstance("SHA-1");
        byte[] der = certificate.getEncoded();
        messageDigest.update(der);
        byte[] digest = messageDigest.digest();
        return hexify(digest);
    }

    private static String hexify(byte bytes[]) {
        char[] hexDigits = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };

        StringBuffer buf = new StringBuffer(bytes.length * 2);
        for (int i = 0; i < bytes.length; ++i) {
            buf.append(hexDigits[(bytes[i] & 0xf0) >> 4]);
            buf.append(hexDigits[bytes[i] & 0x0f]);
        }
        return buf.toString();
    }
}