public void VerifySig(String path,PublicKey pK) throws NoSuchAlgorithmException, NoSuchProviderException, IOException, SignatureException, InvalidKeyException{

            Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());

            PublicKey RSAPublicKey = pK;

            Signature signature = Signature.getInstance("SHA1withRSA", "BC");
            //signature.initSign(RSAPrivateKey, new SecureRandom());


            byte[] array = Files.readAllBytes(new File(path).toPath());
            signature.update(array);

            byte[] sigBytes = signature.sign();
            signature.initVerify(RSAPublicKey);
            signature.update(array);
            System.out.println(signature.verify(sigBytes));

    }

}