Examples of java.security.Signature.initSign()

java.security.Signature.initSign()
Initialize this object for signing. If this method is called again with a different argument, it negates the effect of this call. @param privateKey the private key of the identity whose signatureis going to be generated. @exception InvalidKeyException if the key is invalid.

            fail("SHA1/ISO verification failed");
        }


        sig = Signature.getInstance("RIPEMD160WithRSA/ISO9796-2", "BC");


        sig.initSign(signingKey);


        sig.update(data);


        sigBytes = sig.sign();

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        data = Hex.decode("fedcba9876543210fedcba9876543210fedcba9876543210fedcba9876543210fedcba9876543210fedcba9876543210fedcba9876543210fedcba9876543210fedcba9876543210fedcba9876543210fedcba9876543210fedcba9876543210fedcba9876543210fedcba9876543210");


        sig = Signature.getInstance("RIPEMD160WithRSA/ISO9796-2", "BC");


        sig.initSign(privKey);


        sig.update(data);


        sigBytes = sig.sign();

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            PrivateKey  privKey = fact.generatePrivate(privKeySpec);
            PublicKey   pubKey = fact.generatePublic(pubKeySpec);


            Signature s = Signature.getInstance("SHA1withRSA/PSS", "BC");


            s.initSign(privKey, new FixedRandom(slt1a));
            s.update(msg1a);
            byte[] sig = s.sign();


            if (!arrayEquals(sig1a, sig))
            {

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                return new SimpleTestResult(false, "failed default encoding test.");
            }
            
            s = Signature.getInstance("SHA256withRSA/PSS", "BC");


            s.initSign(privKey, new FixedRandom(slt1a));
            s.update(msg1a);
            sig = s.sign();


            pss = s.getParameters();

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            // 512 test -with zero salt length
            //
            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();

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        Signature           sgr = Signature.getInstance("ECGOST3410", "BC");
        KeyFactory          f = KeyFactory.getInstance("ECGOST3410", "BC");
        PrivateKey          sKey = f.generatePrivate(priKey);
        PublicKey           vKey = f.generatePublic(pubKey);


        sgr.initSign(sKey, k);


        byte[] message = new byte[] { (byte)'a', (byte)'b', (byte)'c' };


        sgr.update(message);

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        KeyPair p = g.generateKeyPair();


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


        s.initSign(sKey);


        s.update(data);


        byte[]  sigBytes = s.sign();

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        p = g.generateKeyPair();


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


        s.initSign(sKey);


        s.update(data);


        sigBytes = s.sign();

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        p = g.generateKeyPair();


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


        s.initSign(sKey);


        s.update(data);


        sigBytes = s.sign();

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        PublicKey   vKey = p.getPublic();


        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();

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