Examples of org.bouncycastle.crypto.Mac.doFinal()

org.bouncycastle.crypto.Mac.doFinal()
Compute the final statge of the MAC writing the output to the out parameter.
doFinal leaves the MAC in the same state it was after the last init. @param out the array the MAC is to be output to. @param outOff the offset into the out buffer the output is to start at. @exception DataLengthException if there isn't enough space in out. @exception IllegalStateException if the MAC is not initialised.

        //
        // add the text
        //
        cMac.update(data, dataOff, dataLen);


        return cMac.doFinal(macBlock, 0);
    }


    private boolean hasAssociatedText()
    {
        return associatedText != null && associatedText.length != 0;

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        mac.update(input1, 0, input1.length);


        byte[]  out = new byte[4];


        mac.doFinal(out, 0);


        if (!arraysEqual(out, output1))
        {
            return new SimpleTestResult(false, getName() + ": Failed - expected " + new String(Hex.encode(output1)) + " got " + new String(Hex.encode(out)));
        }

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        mac.update(input1, 0, input1.length);


        out = new byte[4];


        mac.doFinal(out, 0);


        if (!arraysEqual(out, output2))
        {
            return new SimpleTestResult(false, getName() + ": Failed - expected " + new String(Hex.encode(output2)) + " got " + new String(Hex.encode(out)));
        }

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        mac.update(input1, 0, input1.length);


        out = new byte[4];


        mac.doFinal(out, 0);


        if (!arraysEqual(out, output3))
        {
            return new SimpleTestResult(false, getName() + ": Failed - expected " + new String(Hex.encode(output3)) + " got " + new String(Hex.encode(out)));
        }

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        mac.update(input2, 0, input2.length);


        out = new byte[4];


        mac.doFinal(out, 0);


        if (!arraysEqual(out, output4))
        {
            return new SimpleTestResult(false, getName() + ": Failed - expected " + new String(Hex.encode(output4)) + " got " + new String(Hex.encode(out)));
        }

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        mac.update(input2, 0, input2.length);


        out = new byte[4];


        mac.doFinal(out, 0);


        if (!arraysEqual(out, output5))
        {
            return new SimpleTestResult(false, getName() + ": Failed - expected " + new String(Hex.encode(output5)) + " got " + new String(Hex.encode(out)));
        }

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        mac.update(input1, 0, input1.length);


        out = new byte[4];


        mac.doFinal(out, 0);


        if (!arraysEqual(out, output6))
        {
            return new SimpleTestResult(false, getName() + ": Failed - expected " + new String(Hex.encode(output6)) + " got " + new String(Hex.encode(out)));
        }

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        mac.update(input1, 0, input1.length);


        out = new byte[4];


        mac.doFinal(out, 0);


        if (!arraysEqual(out, output6))
        {
            return new SimpleTestResult(false, getName() + ": Failed - expected " + new String(Hex.encode(output6)) + " got " + new String(Hex.encode(out)));
        }

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        //
        // add the text
        //
        cMac.update(data, dataOff, dataLen);


        return cMac.doFinal(macBlock, 0);
    }


    private int getAssociatedTextLength()
    {
        return associatedText.size() + ((initialAssociatedText == null) ? 0 : initialAssociatedText.length);

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        //
        // add the text
        //
        cMac.update(data, dataOff, dataLen);


        return cMac.doFinal(macBlock, 0);
    }
    
    /**
     * compare two byte arrays.
     */

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