Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 *  Copyright 2015 IBM Corp.
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *  http://www.apache.org/licenses/LICENSE-2.0
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

import android.util.Base64;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;

import java.security.cert.CertificateException;

import java.security.cert.CertificateFactory;

import java.security.cert.X509Certificate;

public class Main {
    public static X509Certificate base64StringToCertificate(String certificateString)
            throws CertificateException, IOException {

        if (certificateString == null) {
            throw new IllegalArgumentException("certificateString cannot be null");
        }

        byte[] encodedCert = Base64.decode(certificateString, Base64.DEFAULT);
        InputStream inStream = new ByteArrayInputStream(encodedCert);
        CertificateFactory cf = CertificateFactory.getInstance("X.509");
        X509Certificate cert = (X509Certificate) cf.generateCertificate(inStream);
        inStream.close();

        return cert;
    }
}