ComputeMAC Method
Computes the MAC.
procedure ComputeMAC();
Remarks
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
poly1305.ComputeMAC();
//This outputs "113019A3ACF5ED2FBB7A45AC1FD67DA1"
Console.WriteLine(poly1305.MACValue);