Examples of javax.crypto.KeyAgreement.generateSecret()

javax.crypto.KeyAgreement.generateSecret()
Generates the shared secret. @return the generated shared secret. @throws IllegalStateException if this key agreement is not complete.

        if (!DESedeKeySpec.isParityAdjusted(key.getEncoded(), 0))
        {
            fail("DESEDE parity wrong");
        }


        key = keyAgreement.generateSecret("Blowfish");


        if (key.getEncoded().length != 16)
        {
            fail("Blowfish length wrong");
        }

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        //
        uAgree.doPhase(new MQVPublicKeySpec(V1.getPublic(), V2.getPublic()), true);
        vAgree.doPhase(new MQVPublicKeySpec(U1.getPublic(), U2.getPublic()), true);


        BigInteger ux = new BigInteger(uAgree.generateSecret());
        BigInteger vx = new BigInteger(vAgree.generateSecret());


        if (!ux.equals(vx))
        {
            fail("Agreement failed");
        }

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        //
        aKeyAgree.doPhase(bKeyPair.getPublic(), true);
        bKeyAgree.doPhase(aKeyPair.getPublic(), true);


        BigInteger  k1 = new BigInteger(aKeyAgree.generateSecret());
        BigInteger  k2 = new BigInteger(bKeyAgree.generateSecret());


        if (!k1.equals(k2))
        {
            fail("2-way test failed");
        }

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        // generate shared secret key
        KeyAgreement ka = KeyAgreement.getInstance("DH");
        ka.init(privateKey);
        ka.doPhase(vlPublic, true);
        byte[] secretKey = ka.generateSecret();


        if (debug) {
            Debug.logInfo("Secret Key : " + StringUtil.toHexString(secretKey) + " / " + secretKey.length,  module);
        }

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        //
        aKeyAgree.doPhase(bKeyPair.getPublic(), true);
        bKeyAgree.doPhase(aKeyPair.getPublic(), true);


        BigInteger  k1 = new BigInteger(aKeyAgree.generateSecret());
        BigInteger  k2 = new BigInteger(bKeyAgree.generateSecret());


        if (!k1.equals(k2))
        {
            fail(size + " bit 2-way test failed");
        }

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        cKeyAgree.doPhase(ba, true);


        BigInteger aShared = new BigInteger(aKeyAgree.generateSecret());
        BigInteger bShared = new BigInteger(bKeyAgree.generateSecret());
        BigInteger cShared = new BigInteger(cKeyAgree.generateSecret());


        if (!aShared.equals(bShared))
        {
            fail(size + " bit 3-way test failed (a and b differ)");
        }

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        //
        aKeyAgree.doPhase(bKeyPair.getPublic(), true);
        bKeyAgree.doPhase(aKeyPair.getPublic(), true);


        BigInteger  k1 = new BigInteger(aKeyAgree.generateSecret());
        BigInteger  k2 = new BigInteger(bKeyAgree.generateSecret());


        if (!k1.equals(k2))
        {
            fail(algorithm + " 2-way test failed");
        }

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    {
        try
        {
            KeyAgreement aKeyAgree = KeyAgreement.getInstance("DH", "BC");


            aKeyAgree.generateSecret("DES");
        }
        catch (IllegalStateException e)
        {
            // okay
        }

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        KeyAgreement keyAgreement = KeyAgreement.getInstance("DH", "BC");


        keyAgreement.init(kp.getPrivate());
        keyAgreement.doPhase(kp.getPublic(), true);


        SecretKey key = keyAgreement.generateSecret("DES");


        if (key.getEncoded().length != 8)
        {
            fail("DES length wrong");
        }

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        if (!DESKeySpec.isParityAdjusted(key.getEncoded(), 0))
        {
            fail("DES parity wrong");
        }


        key = keyAgreement.generateSecret("DESEDE");


        if (key.getEncoded().length != 24)
        {
            fail("DESEDE length wrong");
        }

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