Examples of ECKeyPairGenerator

Examples of org.bouncycastle2.crypto.generators.ECKeyPairGenerator

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        AsymmetricCipherKeyPair tempPair;
        do // generate r
        {
            // generate another, but very temporary, key pair using
            // the same EC parameters
            ECKeyPairGenerator keyGen = new ECKeyPairGenerator();
           
            keyGen.init(new ECKeyGenerationParameters(privKey.getParameters(), this.random));
           
            tempPair = keyGen.generateKeyPair();

            //    BigInteger Vx = tempPair.getPublic().getW().getAffineX();
            ECPublicKeyParameters V = (ECPublicKeyParameters)tempPair.getPublic();        // get temp's public key
            BigInteger Vx = V.getQ().getX().toBigInteger();        // get the point's x coordinate
           
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Examples of org.spongycastle.crypto.generators.ECKeyPairGenerator

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    /**
     * Generates an entirely new keypair with the given {@link SecureRandom} object. Point compression is used so the
     * resulting public key will be 33 bytes (32 for the co-ordinate and 1 byte to represent the y bit).
     */
    public ECKey(SecureRandom secureRandom) {
        ECKeyPairGenerator generator = new ECKeyPairGenerator();
        ECKeyGenerationParameters keygenParams = new ECKeyGenerationParameters(CURVE, secureRandom);
        generator.init(keygenParams);
        AsymmetricCipherKeyPair keypair = generator.generateKeyPair();
        ECPrivateKeyParameters privParams = (ECPrivateKeyParameters) keypair.getPrivate();
        ECPublicKeyParameters pubParams = (ECPublicKeyParameters) keypair.getPublic();
        priv = privParams.getD();
        pub = CURVE.getCurve().decodePoint(pubParams.getQ().getEncoded(true));
    }
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