Examples of ECDHBasicAgreement

org.bouncycastle.crypto.agreement.ECDHBasicAgreement
P1363 7.2.1 ECSVDP-DH ECSVDP-DH is Elliptic Curve Secret Value Derivation Primitive, Diffie-Hellman version. It is based on the work of [DH76], [Mil86], and [Kob87]. This primitive derives a shared secret value from one party's private key and another party's public key, where both have the same set of EC domain parameters. If two parties correctly execute this primitive, they will produce the same output. This primitive can be invoked by a scheme to derive a shared secret key; specifically, it may be used with the schemes ECKAS-DH1 and DL/ECKAS-DH2. It assumes that the input keys are valid (see also Section 7.2.2).
org.bouncycastle2.crypto.agreement.ECDHBasicAgreement
P1363 7.2.1 ECSVDP-DH ECSVDP-DH is Elliptic Curve Secret Value Derivation Primitive, Diffie-Hellman version. It is based on the work of [DH76], [Mil86], and [Kob87]. This primitive derives a shared secret value from one party's private key and another party's public key, where both have the same set of EC domain parameters. If two parties correctly execute this primitive, they will produce the same output. This primitive can be invoked by a scheme to derive a shared secret key; specifically, it may be used with the schemes ECKAS-DH1 and DL/ECKAS-DH2. It assumes that the input keys are valid (see also Section 7.2.2).

Examples of org.bouncycastle.crypto.agreement.ECDHBasicAgreement

    public static class DH
        extends JCEECDHKeyAgreement
    {
        public DH()
        {
            super(new ECDHBasicAgreement());
        }

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Examples of org.bouncycastle.crypto.agreement.ECDHBasicAgreement

    public static class DHwithSHA1KDF
        extends JCEECDHKeyAgreement
    {
        public DHwithSHA1KDF()
        {
            super(new ECDHBasicAgreement(), new ECDHKEKGenerator(new SHA1Digest()));
        }

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Examples of org.bouncycastle.crypto.agreement.ECDHBasicAgreement

        extends JCEIESCipher
    {
        public BrokenECIES()
        {
            super(new IESEngine(
                   new ECDHBasicAgreement(),
                   new BrokenKDF2BytesGenerator(new SHA1Digest()),
                   new HMac(new SHA1Digest())));
        }

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Examples of org.bouncycastle.crypto.agreement.ECDHBasicAgreement

        extends JCEIESCipher
    {
        public ECIES()
        {
            super(new IESEngine(
                   new ECDHBasicAgreement(),
                   new KDF2BytesGenerator(new SHA1Digest()),
                   new HMac(new SHA1Digest())));
        }

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Examples of org.bouncycastle.crypto.agreement.ECDHBasicAgreement

    
        //
        // stream test
        //
        IESEngine      i1 = new IESEngine(
                                   new ECDHBasicAgreement(),
                                   new KDF2BytesGenerator(new SHA1Digest()),
                                   new HMac(new SHA1Digest()));
        IESEngine      i2 = new IESEngine(
                                   new ECDHBasicAgreement(),
                                   new KDF2BytesGenerator(new SHA1Digest()),
                                   new HMac(new SHA1Digest()));
        byte[]         d = new byte[] { 1, 2, 3, 4, 5, 6, 7, 8 };
        byte[]         e = new byte[] { 8, 7, 6, 5, 4, 3, 2, 1 };
        IESParameters  p = new IESParameters(d, e, 64);


        i1.init(true, p1.getPrivate(), p2.getPublic(), p);
        i2.init(false, p2.getPrivate(), p1.getPublic(), p);


        byte[] message = Hex.decode("1234567890abcdef");


        try
        {
            byte[]   out1 = i1.processBlock(message, 0, message.length);


            byte[]   out2 = i2.processBlock(out1, 0, out1.length);


            if (!sameAs(out2, message))
            {
                return new SimpleTestResult(false, this.getName() + ": stream cipher test failed");
            }
      
        }
        catch (Exception ex)
        {
            return new SimpleTestResult(false, this.getName() + ": stream cipher test exception " + ex.toString());
        }


        //
        // twofish with IV0 test
        //
        BufferedBlockCipher c1 = new PaddedBufferedBlockCipher(
                                    new CBCBlockCipher(new TwofishEngine()));
        BufferedBlockCipher c2 = new PaddedBufferedBlockCipher(
                                    new CBCBlockCipher(new TwofishEngine()));
        i1 = new IESEngine(
                       new ECDHBasicAgreement(),
                       new KDF2BytesGenerator(new SHA1Digest()),
                       new HMac(new SHA1Digest()),
                       c1);
        i2 = new IESEngine(
                       new ECDHBasicAgreement(),
                       new KDF2BytesGenerator(new SHA1Digest()),
                       new HMac(new SHA1Digest()),
                       c2);
        d = new byte[] { 1, 2, 3, 4, 5, 6, 7, 8 };
        e = new byte[] { 8, 7, 6, 5, 4, 3, 2, 1 };

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Examples of org.bouncycastle.crypto.agreement.ECDHBasicAgreement

            AsymmetricCipherKeyPair  p2 = pGen.generateKeyPair();
        
            //
            // two way
            //
            BasicAgreement    e1 = new ECDHBasicAgreement();
            BasicAgreement    e2 = new ECDHBasicAgreement();


            e1.init(p1.getPrivate());
            e2.init(p2.getPrivate());


            BigInteger   k1 = e1.calculateAgreement(p2.getPublic());
            BigInteger   k2 = e2.calculateAgreement(p1.getPublic());


            if (!k1.equals(k2))
            {
                return new SimpleTestResult(false, this.getName() + ": calculated agreement test failed");
            }


            //
            // two way
            //
            e1 = new ECDHCBasicAgreement();
            e2 = new ECDHCBasicAgreement();


            e1.init(p1.getPrivate());
            e2.init(p2.getPrivate());


            k1 = e1.calculateAgreement(p2.getPublic());
            k2 = e2.calculateAgreement(p1.getPublic());


            if (!k1.equals(k2))
            {
                return new SimpleTestResult(false, this.getName() + ": calculated agreement test failed");
            }

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Examples of org.bouncycastle.crypto.agreement.ECDHBasicAgreement

        extends JCEIESCipher
    {
        public BrokenECIES()
        {
            super(new IESEngine(
                   new ECDHBasicAgreement(),
                   new BrokenKDF2BytesGenerator(new SHA1Digest()),
                   new HMac(new SHA1Digest())));
        }

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Examples of org.bouncycastle.crypto.agreement.ECDHBasicAgreement

    public static class DH
        extends KeyAgreement
    {
        public DH()
        {
            super("ECDH", new ECDHBasicAgreement(), null);
        }

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Examples of org.bouncycastle.crypto.agreement.ECDHBasicAgreement

    public static class DHwithSHA1KDF
        extends KeyAgreement
    {
        public DHwithSHA1KDF()
        {
            super("ECDHwithSHA1KDF", new ECDHBasicAgreement(), new ECDHKEKGenerator(new SHA1Digest()));
        }

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Examples of org.bouncycastle.crypto.agreement.ECDHBasicAgreement

        extends JCEIESCipher
    {
        public ECIES()
        {
            super(new IESEngine(
                   new ECDHBasicAgreement(),
                   new KDF2BytesGenerator(new SHA1Digest()),
                   new HMac(new SHA1Digest())));
        }

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