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.


        sgr.update(message);


        byte[] sigBytes = sgr.sign();


        sgr.initVerify(pair.getPublic());


        sgr.update(message);


        if (!sgr.verify(sigBytes))
        {

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            }
        }


        setSignatureParameters(sig, sigAlgId.getParameters());
        
        sig.initVerify(pubKey);


        try
        {
            sig.update(reqInfo.getEncoded(ASN1Encoding.DER));
        }

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        try
        {
            Signature signature = OCSPUtil.createSignatureInstance(this.getSignatureAlgOID(), sigProvider);


            signature.initVerify(key);


            ByteArrayOutputStream   bOut = new ByteArrayOutputStream();
            ASN1OutputStream        aOut = new ASN1OutputStream(bOut);


            aOut.writeObject(req.getTbsRequest());

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              logInfo.getSignatureAlgorithm()));
    }


    try {
      Signature signature = Signature.getInstance("SHA256withECDSA");
      signature.initVerify(logInfo.getKey());
      signature.update(toVerify);
      return signature.verify(sct.getSignature().getSignature().toByteArray());
    } catch (SignatureException e) {
      throw new CertificateTransparencyException("Signature object not properly initialized or"
          + " signature from SCT is improperly encoded.", e);

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    {
        try
        {
            Signature signature = OCSPUtil.createSignatureInstance(this.getSignatureAlgName(), sigProvider);


            signature.initVerify(key);


            signature.update(resp.getTbsResponseData().getEncoded(ASN1Encoding.DER));


            return signature.verify(this.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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            fail("sig parameters present");
        }
        
        Signature sig = Signature.getInstance(algorithm, "BC");
        
        sig.initVerify(pubKey);
        
        sig.update(cert.getTBSCertificate());
        
        if (!sig.verify(cert.getSignature()))
        {

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            fail("ECDSA 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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            fail("ECDSA 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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            fail("ECGOST 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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