Examples of java.security.Signature.initVerify()

java.security.Signature.initVerify()
Initializes this object for verification. If this method is called again with a different argument, it negates the effect of this call. @param publicKey the public key of the identity whose signature isgoing to be verified. @exception InvalidKeyException if the key is invalid.

            fail("PSS parameters incorrect.");
        }


        Signature sig = Signature.getInstance(algorithm, "BC");


        sig.initVerify(pubKey);


        sig.update(req.getCertificationRequestInfo().getEncoded());


        if (!sig.verify(req.getSignature().getBytes()))
        {

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    {
        X509Certificate  cert = loadCert(certName);
        byte[]           tbs = cert.getTBSCertificate();
        Signature        sig = Signature.getInstance(cert.getSigAlgName(), "BC");
        
        sig.initVerify(cert.getPublicKey());
        
        sig.update(tbs);
        
        assertFalse(sig.verify(cert.getSignature()));
    }

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        else
        {
            sig = Signature.getInstance(getSigAlgName());
        }


        sig.initVerify(key);
        sig.update(this.getTBSCertList());


        if (!sig.verify(this.getSignature()))
        {
            throw new SignatureException("CRL does not verify with supplied public key.");

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        // Verify the signature .. shows the response was generated
        // by someone who knew the associated private key
        //
        Signature sig = Signature.getInstance(sigAlg.getObjectId().getId(),
                "BC");
        sig.initVerify(pubkey);
        sig.update(content.getBytes());


        return sig.verify(sigBits);
    }

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            throw new CertificateException("Signature algorithm in certificate info not same as outer certificate");
        }


        signature = Signature.getInstance(cert.getSignatureAlgorithm().getObjectId().getId(), provider);


        signature.initVerify(key);


        try
        {
            signature.update(cert.getAcinfo().getEncoded());
        }

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        sgr.update(message);


        byte[]  sigBytes = sgr.sign();


        sgr.initVerify(vKey);


        sgr.update(message);


        if (!sgr.verify(sigBytes))
        {

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        sgr.update(message);


        byte[]  sigBytes = sgr.sign();


        sgr.initVerify(vKey);


        sgr.update(message);


        if (!sgr.verify(sigBytes))
        {

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        sgr.update(message);
        
        byte[]  sigBytes = sgr.sign();
        
        sgr.initVerify(vKey);
        
        sgr.update(message);
        
        if (!sgr.verify(sigBytes))
        {

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        sgr.update(message);
        
        byte[]  sigBytes = sgr.sign();


        sgr.initVerify(vKey);


        sgr.update(message);


        if (!sgr.verify(sigBytes))
        {

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        byte[]  sigBytes = sgr.sign();


        sgr = Signature.getInstance(oid.getId(), "BC");


        sgr.initVerify(vKey);


        sgr.update(message);


        if (!sgr.verify(sigBytes))
        {

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