IPWorks Encrypt 2020 Android Edition

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ComputeMAC Method

Computes the MAC.


public void computeMAC();


ComputeMAC computes the MAC (Message Authentication Code) from the input data.

Before calling this method set Key to a 256 bit (32 byte) key. If EncodeMAC is set to True (default) the output data will be hex encoded.

Input Notes

The component will determine the source of the input based on which properties are set.

The order in which the input properties are checked are as follows:

When a valid source is found the search stops.

After calling this method MACValue will be populated with the computed 128 bit (16 byte) value.

ComputeMAC Example

Poly1305 poly1305 = new Poly1305();
poly1305.KeyB = new byte[] { 0x1c, 0x92, 0x40, 0xa5, 0xeb, 0x55, 0xd3, 0x8a, 0xf3, 0x33, 0x88, 0x86, 0x04, 0xf6, 0xb5, 0xf0, 0x47, 0x39, 0x17, 0xc1, 0x40, 0x2b, 0x80, 0x09, 0x9d, 0xca, 0x5c, 0xbc, 0x20, 0x70, 0x75, 0xc0 };
poly1305.InputMessage = "Hello Polly";
poly1305.EncodeMAC = true; //hex output

//This outputs "113019A3ACF5ED2FBB7A45AC1FD67DA1"

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IPWorks Encrypt 2020 Android Edition - Version 20.0 [Build 8161]