Package javax.crypto.interfaces

Examples of javax.crypto.interfaces.DHPublicKey

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           return new DHPrivateKeySpec(k.getX(), k.getParams().getP(), k.getParams().getG());
       }
       else if (spec.isAssignableFrom(DHPublicKeySpec.class) && key instanceof DHPublicKey)
       {
           DHPublicKey k = (DHPublicKey)key;
          
           return new DHPublicKeySpec(k.getY(), k.getParams().getP(), k.getParams().getG());
       }

       throw new RuntimeException("not implemented yet " + key + " " + spec);
    }
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           return new DHPrivateKeySpec(k.getX(), k.getParams().getP(), k.getParams().getG());
       }
       else if (spec.isAssignableFrom(DHPublicKeySpec.class) && key instanceof DHPublicKey)
       {
           DHPublicKey k = (DHPublicKey)key;
          
           return new DHPublicKeySpec(k.getY(), k.getParams().getP(), k.getParams().getG());
       }
       else if (spec.isAssignableFrom(java.security.spec.ECPublicKeySpec.class) && key instanceof ECPublicKey)
       {
           ECPublicKey k = (ECPublicKey)key;

           return new java.security.spec.ECPublicKeySpec(k.getW(), k.getParams());
       }
       else if (spec.isAssignableFrom(java.security.spec.ECPrivateKeySpec.class) && key instanceof ECPrivateKey)
       {
           ECPrivateKey k = (ECPrivateKey)key;

           return new java.security.spec.ECPrivateKeySpec(k.getS(), k.getParams());
       }

       throw new RuntimeException("not implemented yet " + key + " " + spec);
    }
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        // public key encoding test
        //
        byte[]              pubEnc = aKeyPair.getPublic().getEncoded();
        KeyFactory          keyFac = KeyFactory.getInstance("DH", "BC");
        X509EncodedKeySpec  pubX509 = new X509EncodedKeySpec(pubEnc);
        DHPublicKey         pubKey = (DHPublicKey)keyFac.generatePublic(pubX509);
        DHParameterSpec     spec = pubKey.getParams();

        if (!spec.getG().equals(dhParams.getG()) || !spec.getP().equals(dhParams.getP()))
        {
            fail(size + " bit public key encoding/decoding test failed on parameters");
        }

        if (!((DHPublicKey)aKeyPair.getPublic()).getY().equals(pubKey.getY()))
        {
            fail(size + " bit public key encoding/decoding test failed on y value");
        }

        //
        // public key serialisation test
        //
        ByteArrayOutputStream   bOut = new ByteArrayOutputStream();
        ObjectOutputStream      oOut = new ObjectOutputStream(bOut);

        oOut.writeObject(aKeyPair.getPublic());

        ByteArrayInputStream   bIn = new ByteArrayInputStream(bOut.toByteArray());
        ObjectInputStream      oIn = new ObjectInputStream(bIn);

        pubKey = (DHPublicKey)oIn.readObject();
        spec = pubKey.getParams();

        if (!spec.getG().equals(dhParams.getG()) || !spec.getP().equals(dhParams.getP()))
        {
            fail(size + " bit public key serialisation test failed on parameters");
        }

        if (!((DHPublicKey)aKeyPair.getPublic()).getY().equals(pubKey.getY()))
        {
            fail(size + " bit public key serialisation test failed on y value");
        }

        //
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        PublicKey    key)
        throws InvalidKeyException
    {
        if (key instanceof DHPublicKey)
        {
            DHPublicKey    k = (DHPublicKey)key;

            return new DHPublicKeyParameters(k.getY(),
                new DHParameters(k.getParams().getP(), k.getParams().getG(), null, k.getParams().getL()));
        }

        throw new InvalidKeyException("can't identify DH public key.");
    }
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        if (!(key instanceof DHPublicKey))
        {
            throw new InvalidKeyException("DHKeyAgreement doPhase requires DHPublicKey");
        }
        DHPublicKey pubKey = (DHPublicKey)key;

        if (!pubKey.getParams().getG().equals(g) || !pubKey.getParams().getP().equals(p))
        {
            throw new InvalidKeyException("DHPublicKey not for this KeyAgreement!");
        }

        if (lastPhase)
        {
            result = ((DHPublicKey)key).getY().modPow(x, p);
            return null;
        }
        else
        {
            result = ((DHPublicKey)key).getY().modPow(x, p);
        }

        return new JCEDHPublicKey(result, pubKey.getParams());
    }
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           return new DHPrivateKeySpec(k.getX(), k.getParams().getP(), k.getParams().getG());
       }
       else if (spec.isAssignableFrom(DHPublicKeySpec.class) && key instanceof DHPublicKey)
       {
           DHPublicKey k = (DHPublicKey)key;
          
           return new DHPublicKeySpec(k.getY(), k.getParams().getP(), k.getParams().getG());
       }

       throw new RuntimeException("not implemented yet " + key + " " + spec);
    }
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        }
    }

    static DHPublicKeySpec getDHPublicKeySpec(PublicKey key) {
        if (key instanceof DHPublicKey) {
            DHPublicKey dhKey = (DHPublicKey)key;
            DHParameterSpec params = dhKey.getParams();
            return new DHPublicKeySpec(dhKey.getY(), params.getP(), params.getG());
        }
        try {
            KeyFactory factory = JsseJce.getKeyFactory("DH");
            return (DHPublicKeySpec)factory.getKeySpec
                                            (key, DHPublicKeySpec.class);
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    }


    static DHPublicKeySpec getDHPublicKeySpec(PublicKey key) {
        if (key instanceof DHPublicKey) {
            DHPublicKey dhKey = (DHPublicKey)key;
            DHParameterSpec params = dhKey.getParams();
            return new DHPublicKeySpec(dhKey.getY(),
                                    params.getP(), params.getG());
        }
        try {
            KeyFactory factory = JsseJce.getKeyFactory("DH");
            return factory.getKeySpec(key, DHPublicKeySpec.class);
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           return new DHPrivateKeySpec(k.getX(), k.getParams().getP(), k.getParams().getG());
       }
       else if (spec.isAssignableFrom(DHPublicKeySpec.class) && key instanceof DHPublicKey)
       {
           DHPublicKey k = (DHPublicKey)key;

           return new DHPublicKeySpec(k.getY(), k.getParams().getP(), k.getParams().getG());
       }

        throw new RuntimeException("not implemented yet " + key + " " + spec);
    }
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           return new DHPrivateKeySpec(k.getX(), k.getParams().getP(), k.getParams().getG());
       }
       else if (spec.isAssignableFrom(DHPublicKeySpec.class) && key instanceof DHPublicKey)
       {
           DHPublicKey k = (DHPublicKey)key;
          
           return new DHPublicKeySpec(k.getY(), k.getParams().getP(), k.getParams().getG());
       }

        throw new RuntimeException("not implemented yet " + key + " " + spec);
    }
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