Examples of java.security.cert.X509Certificate.verify()

Class java.security.cert.X509Certificate

Examples of java.security.cert.X509Certificate.verify()

java.security.cert.X509Certificate.verify()
Verifies that this certificate was signed using the private key that corresponds to the specified public key. This method uses the signature verification engine supplied by the specified provider. Note that the specified Provider object does not have to be registered in the provider list. This method was added to version 1.8 of the Java Platform Standard Edition. In order to maintain backwards compatibility with existing service providers, this method is not {@code abstract}and it provides a default implementation. @param key the PublicKey used to carry out the verification. @param sigProvider the signature provider. @exception NoSuchAlgorithmException on unsupported signaturealgorithms. @exception InvalidKeyException on incorrect key. @exception SignatureException on signature errors. @exception CertificateException on encoding errors. @exception UnsupportedOperationException if the method is not supported @since 1.8

                new BasicConstraints(_ca));


        X509Certificate _cert = _v3CertGen.generateX509Certificate(_issPriv);


        _cert.checkValidity(new Date());
        _cert.verify(_issPub);


        return _cert;
    }


    /*

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        X509Certificate cert = certGen.generate(privKey, "BC");
        
        cert.checkValidity(new Date());
    
        cert.verify(pubKey);
    
        if (!areEqual(baseCert.getExtensionValue("2.5.29.15"), cert.getExtensionValue("2.5.29.15")))
        {
            fail("2.5.29.15 differs");
        }

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        CertificateFactory certFact = CertificateFactory.getInstance("X.509", "BC");
        
        X509Certificate x509 = (X509Certificate)certFact.generateCertificate(new ByteArrayInputStream(Base64.decode(cert)));
        try
        {
            x509.verify(x509.getPublicKey());
            
            fail("forged RSA signature passed");
        }
        catch (Exception e)
        {

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        certGen.addExtension("2.5.29.17", true,
            new GeneralNames(new GeneralName(GeneralName.rfc822Name, "test@test.test")));


        X509Certificate baseCert = certGen.generate(privKey, "BC");


        baseCert.verify(pubKey);
    }
    
    public void performTest()
        throws Exception
    {

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        {
            X509Certificate cert = certGen.generateX509Certificate(privKey);


            cert.checkValidity(new Date());


            cert.verify(pubKey);


            ByteArrayInputStream    bIn = new ByteArrayInputStream(cert.getEncoded());
            CertificateFactory      fact = CertificateFactory.getInstance("X.509", "BC");


            cert = (X509Certificate)fact.generateCertificate(bIn);

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        {
            X509Certificate cert = certGen.generateX509Certificate(privKey);


            cert.checkValidity(new Date());


            cert.verify(pubKey);


            ByteArrayInputStream    bIn = new ByteArrayInputStream(cert.getEncoded());
            CertificateFactory      fact = CertificateFactory.getInstance("X.509", "BC");


            cert = (X509Certificate)fact.generateCertificate(bIn);

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        //
        // verify certificate
        //
        Certificate cert = store.getCertificateChain("private")[0];


        cert.verify(pubKey);
    }


    public String getName()
    {
        return "KeyStore";

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        X509Certificate cert = certGen.generate(privKey);


        cert.checkValidity(new Date());


        cert.verify(pubKey);


        Set dummySet = cert.getNonCriticalExtensionOIDs();
        if (dummySet != null)
        {
            fail("non-critical oid set should be null");

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        cert = certGen.generate(privKey);


        cert.checkValidity(new Date());


        cert.verify(pubKey);


        ByteArrayInputStream   sbIn = new ByteArrayInputStream(cert.getEncoded());
        ASN1InputStream        sdIn = new ASN1InputStream(sbIn);
        ByteArrayInputStream   bIn = new ByteArrayInputStream(cert.getEncoded());
        CertificateFactory     certFact = CertificateFactory.getInstance("X.509", "BC");

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        cert = certGen1.generate(privKey);


        cert.checkValidity(new Date());


        cert.verify(pubKey);


        bIn = new ByteArrayInputStream(cert.getEncoded());
        certFact = CertificateFactory.getInstance("X.509", "BC");


        cert = (X509Certificate)certFact.generateCertificate(bIn);

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