org.spongycastle.tls.crypto

Interface TlsMAC

All Known Subinterfaces:

TlsHMAC

All Known Implementing Classes:

JceTlsHMAC, JceTlsMAC

public interface TlsMAC

Interface for MAC services.

Method Summary

Modifier and Type	Method and Description
byte[]	calculateMAC() Return calculated MAC for any input passed in.
int	getMacLength() Return the length of the MAC generated by this service.
void	reset() Reset the MAC underlying this service.
void	setKey(byte[] key, int keyOff, int keyLen) Set the key to be used by the MAC implementation supporting this service.
void	update(byte[] input, int inOff, int length) Update the MAC with the passed in input.

Method Detail

setKey

void setKey(byte[] key,
            int keyOff,
            int keyLen)

Set the key to be used by the MAC implementation supporting this service.

Parameters:

key - array holding the MAC key.

keyOff - offset into the array the key starts at.

keyLen - length of the key in the array.

update

void update(byte[] input,
            int inOff,
            int length)

Update the MAC with the passed in input.

Parameters:

input - input array containing the data.

inOff - offset into the input array the input starts at.

length - the length of the input data.

calculateMAC

byte[] calculateMAC()

Return calculated MAC for any input passed in.

Returns:

the MAC value.

getMacLength

int getMacLength()

Return the length of the MAC generated by this service.

Returns:

the MAC length.

reset

void reset()

Reset the MAC underlying this service.