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.

            }
        }


        if (random != null)
        {
            sig.initSign(key, random);
        }
        else
        {
            sig.initSign(key);
        }

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        {
            sig.initSign(key, random);
        }
        else
        {
            sig.initSign(key);
        }


        TBSCertificateStructure tbsCert = tbsGen.generateTBSCertificate();


        try

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            }
        }


        if (random != null)
        {
            sig.initSign(key, random);
        }
        else
        {
            sig.initSign(key);
        }

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        {
            sig.initSign(key, random);
        }
        else
        {
            sig.initSign(key);
        }


        if (extensions != null)
        {
            tbsGen.setExtensions(new X509Extensions(extOrdering, extensions));

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        else
        {
            sig = Signature.getInstance(signatureAlgorithm, provider);
        }


        sig.initSign(signingKey);


        try
        {
            ByteArrayOutputStream   bOut = new ByteArrayOutputStream();
            DEROutputStream         dOut = new DEROutputStream(bOut);

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


        s.initSign(sKey);


        s.update(data);


        byte[] sigBytes = s.sign();

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        //
        // SHA-384
        //
        sig = Signature.getInstance("SHA384WithRSAEncryption", "BC");


        sig.initSign(signingKey);


        sig.update(data);


        sigBytes = sig.sign();

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        //
        // SHA-512
        //
        sig = Signature.getInstance("SHA512WithRSAEncryption", "BC");


        sig.initSign(signingKey);


        sig.update(data);


        sigBytes = sig.sign();

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        //
        // ISO Sigs.
        //
        sig = Signature.getInstance("MD5WithRSA/ISO9796-2", "BC");


        sig.initSign(signingKey);


        sig.update(data);


        sigBytes = sig.sign();

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            fail("MD5/ISO verification failed");
        }


        sig = Signature.getInstance("SHA1WithRSA/ISO9796-2", "BC");


        sig.initSign(signingKey);


        sig.update(data);


        sigBytes = sig.sign();

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