A TAK is used in the generation and verification of MACs. Commands are provided to:
Generate a TAK for down line loading to an ATM or other terminal.
Translate a TAK from encryption under a ZMK to encryption under the LMK.
Translate a TAK from encryption under the LMK to encryption under a ZMK.
Translate a TAK from encryption under the LMK to encryption under a TMK.
The facilities allow for the use of a TAK in either an interchange or a local network.