check Validity With Public Key - Android java.security

Android examples for java.security:Key

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Description

check Validity With Public Key

Demo Code

/*//from   www.ja v a  2s.com
 * ?? ?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.
 */
//package com.java2s;

import java.security.PublicKey;

import java.security.cert.CertificateExpiredException;

import java.security.cert.CertificateNotYetValidException;
import java.security.cert.X509Certificate;
import java.util.Date;

public class Main {
    public static void checkValidityWithPublicKey(
            X509Certificate certificate, PublicKey publicKey)
            throws CertificateNotYetValidException,
            CertificateExpiredException {

        Date now = new Date();
        long nowTime = now.getTime();
        final int oneMinute = 60000;
        Date afterAddingOneMinute = new Date(nowTime + (5 * oneMinute));

        //we are checking the certificate against current time plus five minutes to prevent false failure because of sync problems
        certificate.checkValidity(afterAddingOneMinute);
        if (!certificate.getPublicKey().equals(publicKey)) {
            throw new RuntimeException("Failed to validate public key");
        }
    }
}

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