Package org.bouncycastle.crypto.generators

Examples of org.bouncycastle.crypto.generators.DHBasicKeyPairGenerator

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    }

    public static AsymmetricCipherKeyPair generateDHKeyPair(SecureRandom random,
                                                            DHParameters dhParams)
    {
        DHBasicKeyPairGenerator dhGen = new DHBasicKeyPairGenerator();
        dhGen.init(new DHKeyGenerationParameters(random, dhParams));
        return dhGen.generateKeyPair();
    }
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    {
        DHParameters                dhParams = new DHParameters(p, g);

        DHKeyGenerationParameters   params = new DHKeyGenerationParameters(new SecureRandom(), dhParams);

        DHBasicKeyPairGenerator     kpGen = new DHBasicKeyPairGenerator();

        kpGen.init(params);

        //
        // generate first pair
        //
        AsymmetricCipherKeyPair     pair = kpGen.generateKeyPair();

        DHPublicKeyParameters       pu1 = (DHPublicKeyParameters)pair.getPublic();
        DHPrivateKeyParameters      pv1 = (DHPrivateKeyParameters)pair.getPrivate();
        //
        // generate second pair
        //
        pair = kpGen.generateKeyPair();

        DHPublicKeyParameters       pu2 = (DHPublicKeyParameters)pair.getPublic();
        DHPrivateKeyParameters      pv2 = (DHPrivateKeyParameters)pair.getPrivate();

        //
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        DHParameters                dhParams = pGen.generateParameters();

        DHKeyGenerationParameters   params = new DHKeyGenerationParameters(new SecureRandom(), dhParams);

        DHBasicKeyPairGenerator     kpGen = new DHBasicKeyPairGenerator();

        kpGen.init(params);

        //
        // generate first pair
        //
        AsymmetricCipherKeyPair     pair = kpGen.generateKeyPair();

        DHPublicKeyParameters       pu1 = (DHPublicKeyParameters)pair.getPublic();
        DHPrivateKeyParameters      pv1 = (DHPrivateKeyParameters)pair.getPrivate();
        //
        // generate second pair
        //
        params = new DHKeyGenerationParameters(new SecureRandom(), pu1.getParameters());

        kpGen.init(params);

        pair = kpGen.generateKeyPair();

        DHPublicKeyParameters       pu2 = (DHPublicKeyParameters)pair.getPublic();
        DHPrivateKeyParameters      pv2 = (DHPrivateKeyParameters)pair.getPrivate();

        //
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          * Diffie-Hellman basic key agreement
          */
         DHParameters dhParams = new DHParameters(p, g);

         // Generate a keypair
         DHBasicKeyPairGenerator dhGen = new DHBasicKeyPairGenerator();
         dhGen.init(new DHKeyGenerationParameters(random, dhParams));

         AsymmetricCipherKeyPair dhPair = dhGen.generateKeyPair();

         // Store the public value to send to server
         this.Yc = ((DHPublicKeyParameters)dhPair.getPublic()).getY();

         // Calculate the shared secret
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          * Diffie-Hellman basic key agreement
          */
         DHParameters dhParams = new DHParameters(p, g);

         // Generate a keypair
         DHBasicKeyPairGenerator dhGen = new DHBasicKeyPairGenerator();
         dhGen.init(new DHKeyGenerationParameters(random, dhParams));

         AsymmetricCipherKeyPair dhPair = dhGen.generateKeyPair();

         // Store the public value to send to server
         this.Yc = ((DHPublicKeyParameters)dhPair.getPublic()).getY();

         // Calculate the shared secret
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Related Classes of org.bouncycastle.crypto.generators.DHBasicKeyPairGenerator

  • org.bouncycastle.crypto.AsymmetricCipherKeyPair
  • org.bouncycastle.crypto.params.DHParameters
  • org.bouncycastle.crypto.params.DHPrivateKeyParameters
  • org.bouncycastle.crypto.params.DHPublicKeyParameters
  • org.bouncycastle.crypto.test.DHTest
  • org.bouncycastle.crypto.tls.TlsDHUtils
  • org.bouncycastle.crypto.tls.TlsProtocolHandler
  • java.math.BigInteger
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