Examples of DHPublicKeyParameters

Examples of org.bouncycastle.crypto.params.DHPublicKeyParameters

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        // calculate the public key.
        //
        y = g.modPow(x, p);

        return new AsymmetricCipherKeyPair(
                new DHPublicKeyParameters(y, dhParams),
                new DHPrivateKeyParameters(x, dhParams));
    }
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Examples of org.bouncycastle.crypto.params.DHPublicKeyParameters

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    {
        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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Examples of org.bouncycastle.crypto.params.DHPublicKeyParameters

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                engine.init(param);
                initialised = true;
            }

            AsymmetricCipherKeyPair   pair = engine.generateKeyPair();
            DHPublicKeyParameters     pub = (DHPublicKeyParameters)pair.getPublic();
            DHPrivateKeyParameters priv = (DHPrivateKeyParameters)pair.getPrivate();

            return new KeyPair(new JCEDHPublicKey(pub),
                               new JCEDHPrivateKey(priv));
        }
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Examples of org.bouncycastle.crypto.params.DHPublicKeyParameters

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            initialised = true;
        }

        AsymmetricCipherKeyPair pair = engine.generateKeyPair();
        DHPublicKeyParameters pub = (DHPublicKeyParameters)pair.getPublic();
        DHPrivateKeyParameters priv = (DHPrivateKeyParameters)pair.getPrivate();

        return new KeyPair(new BCDHPublicKey(pub),
            new BCDHPrivateKey(priv));
    }
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Examples of org.bouncycastle.crypto.params.DHPublicKeyParameters

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    {
        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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Examples of org.bouncycastle.crypto.params.DHPublicKeyParameters

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         // Calculate the shared secret
         DHBasicAgreement dhAgree = new DHBasicAgreement();
         dhAgree.init(dhPair.getPrivate());

         BigInteger agreement = dhAgree.calculateAgreement(new DHPublicKeyParameters(Ys, dhParams));

         this.pms = BigIntegers.asUnsignedByteArray(agreement);
    }
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Examples of org.bouncycastle.crypto.params.DHPublicKeyParameters

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            BigInteger lVal = params.getL();
            int l = lVal == null ? 0 : lVal.intValue();
            DHParameters dhParams = new DHParameters(params.getP(), params.getG(), null, l);

            return new DHPublicKeyParameters(derY.getValue(), dhParams);
        }
        else if (algId.getObjectId().equals(OIWObjectIdentifiers.elGamalAlgorithm))
        {
            ElGamalParameter    params = new ElGamalParameter((ASN1Sequence)keyInfo.getAlgorithmId().getParameters());
            DERInteger          derY = (DERInteger)keyInfo.getPublicKey();
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Examples of org.bouncycastle.crypto.params.DHPublicKeyParameters

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        BigInteger x = helper.calculatePrivate(dhp, param.getRandom());
        BigInteger y = helper.calculatePublic(dhp, x);

        return new AsymmetricCipherKeyPair(
            new DHPublicKeyParameters(y, dhp),
            new DHPrivateKeyParameters(x, dhp));
    }
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Examples of org.bouncycastle.crypto.params.DHPublicKeyParameters

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                initialised = true;
            }

            AsymmetricCipherKeyPair pair = engine.generateKeyPair();
            DHPublicKeyParameters   pub = (DHPublicKeyParameters)pair.getPublic();
            DHPrivateKeyParameters  priv = (DHPrivateKeyParameters)pair.getPrivate();

            return new KeyPair(new JCEDHPublicKey(pub),
                               new JCEDHPrivateKey(priv));
        }
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Examples of org.bouncycastle.crypto.params.DHPublicKeyParameters

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                engine.init(param);
                initialised = true;
            }

            AsymmetricCipherKeyPair   pair = engine.generateKeyPair();
            DHPublicKeyParameters     pub = (DHPublicKeyParameters)pair.getPublic();
            DHPrivateKeyParameters priv = (DHPrivateKeyParameters)pair.getPrivate();

            return new KeyPair(new JCEDHPublicKey(pub),
                               new JCEDHPrivateKey(priv));
        }
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