Examples of javax.crypto.Mac.doFinal()

javax.crypto.Mac.doFinal()
Computes the digest of this MAC based on the data previously specified in {@link #update} calls.
This {@code Mac} instance is reverted to its initial state and can beused to start the next MAC computation with the same parameters or initialized with different parameters. @return the generated digest. @throws IllegalStateException if this MAC is not initialized.


        mac.update(input64, 0, input64.length);


        out = new byte[mac.getMacLength()];


        mac.doFinal(out, 0);


        if (!areEqual(out, output_k256_m64))
        {
            fail("Failed - expected " + new String(Hex.encode(output_k256_m64))
                + " got " + new String(Hex.encode(out)));

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        mac.update(input0, 0, input0.length);


        out = new byte[mac.getMacLength()];


        mac.doFinal(out, 0);


        if (!areEqual(out, output_des_ede))
        {
            fail("Failed - expected " + new String(Hex.encode(output_des_ede))
                + " got " + new String(Hex.encode(out)));

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        mac.init(new SecretKeySpec(key, "SipHash"));


        mac.update(input, 0, input.length);


        byte[] result = mac.doFinal();


        if (!Arrays.areEqual(expected, result))
        {
            fail("Result does not match expected value for doFinal()");
        }

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        mac.init(new SecretKeySpec(key, "SipHash-2-4"));


        mac.update(input, 0, input.length);


        result = mac.doFinal();
        if (!Arrays.areEqual(expected, result))
        {
            fail("Result does not match expected value for second doFinal()");
        }

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        mac.init(new SecretKeySpec(key, "SipHash-2-4"));


        mac.update(input, 0, input.length);


        result = mac.doFinal();
        if (!Arrays.areEqual(expected, result))
        {
            fail("Result does not match expected value for alias");
        }

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        mac.init(new SecretKeySpec(key, "SipHash"));


        mac.update(input, 0, input.length);


        result = mac.doFinal();


        if (!Arrays.areEqual(expected, result))
        {
            fail("Result does not match expected value for SipHash 4-8");
        }

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        Mac mac = Mac.getInstance(oid.getId(), provider);
        mac.init(key, defParams);
        mac.update(data);


        return mac.doFinal();
    }
}

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        key.setTryWrongPKCS12Zero(wrongPkcs12Zero);


        Mac mac = Mac.getInstance(oid.getId(), bcProvider);
        mac.init(key, defParams);
        mac.update(data);
        return mac.doFinal();
    }


    public static class BCPKCS12KeyStore
        extends PKCS12KeyStoreSpi
    {

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        //
        mac.init(key);


        mac.update(input, 0, input.length);


        byte[] ref = mac.doFinal();


        for (int i = 0; i != aliases.length; i++)
        {
            mac = Mac.getInstance(aliases[i], "BC");

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            mac.init(key);


            mac.update(input, 0, input.length);


            byte[] out = mac.doFinal();
            if (!areEqual(out, ref))
            {
                fail("Failed - expected " + new String(Hex.encode(ref)) + " got " + new String(Hex.encode(out)));
            }
        }

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