org.bouncycastle.tls.crypto

Interface TlsMAC

All Known Subinterfaces:

TlsHMAC

All Known Implementing Classes:

JceTlsHMAC

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.
void	calculateMAC(byte[] output, int outOff) Write the calculated MAC to an output buffer.
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.

calculateMAC

void calculateMAC(byte[] output,
                  int outOff)

Write the calculated MAC to an output buffer.

Parameters:

output - output array to write the MAC to.

outOff - offset into the output array to write the MAC to.

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.