Examples of java.security.Signature.update()

java.security.Signature.update()
Updates the data to be signed or verified by a byte. @param b the byte to use for the update. @exception SignatureException if this signature object is not initialized properly.

        PrivateKey  sKey = p.getPrivate();
        PublicKey   vKey = p.getPublic();


        s.initSign(sKey);


        s.update(data);


        byte[]  sigBytes = s.sign();


        s = Signature.getInstance("GOST3410", "BC");

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        s = Signature.getInstance("GOST3410", "BC");


        s.initVerify(vKey);


        s.update(data);


        if (!s.verify(sigBytes))
        {
            fail("GOST3410 verification failed");
        }

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        sKey = p.getPrivate();
        vKey = p.getPublic();


        s.initSign(sKey);


        s.update(data);


        sigBytes = s.sign();


        s = Signature.getInstance("GOST3410", "BC");

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        s = Signature.getInstance("GOST3410", "BC");


        s.initVerify(vKey);


        s.update(data);


        if (!s.verify(sigBytes))
        {
            fail("GOST3410 verification failed");
        }

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        sKey = p.getPrivate();
        vKey = p.getPublic();


        s.initSign(sKey);


        s.update(data);


        sigBytes = s.sign();


        s = Signature.getInstance("ECGOST3410", "BC");

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        s = Signature.getInstance("ECGOST3410", "BC");


        s.initVerify(vKey);


        s.update(data);


        if (!s.verify(sigBytes))
        {
            fail("ECGOST3410 verification failed");
        }

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        Signature           s = Signature.getInstance("GOST3410", "BC");
        byte[]              data = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 0 };


        s.initSign(sKey);


        s.update(data);


        byte[]  sigBytes = s.sign();


        s = Signature.getInstance("GOST3410", "BC");

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        s = Signature.getInstance("GOST3410", "BC");


        s.initVerify(vKey);


        s.update(data);


        if (!s.verify(sigBytes))
        {
            fail("GOST3410 verification failed");
        }

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        s = Signature.getInstance("SHA256withRSAandMGF1", "BC");
        
        s.setParameter(pss.getParameterSpec(PSSParameterSpec.class));
        
        s.initVerify(pubKey);
        s.update(msg1a);
        if (!s.verify(sig1b))
        {
            fail("SHA256 signature verification failed");
        }

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        s = Signature.getInstance("SHA512withRSAandMGF1", "BC");
        
        s.setParameter(new PSSParameterSpec("SHA-512", "MGF1", new MGF1ParameterSpec("SHA-512"), 0, 1));
        s.initSign(privKey);


        s.update(msg1a);
        sig = s.sign();


        pss = s.getParameters();
        
        if (!arrayEquals(sig1c, sig))

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