$ internal controls
(I) /COMPUSEC/ Functions, features, and technical characteristics
of computer hardware and software, especially of operating
systems. Includes mechanisms to regulate the operation of a
computer system with regard to access control, flow control, and
inference control. (Compare: external controls.)
$ International Data Encryption Algorithm (IDEA)
(N) A patented, symmetric block cipher that uses a 128-bit key and
operates on 64-bit blocks. [Schn] (See: symmetric cryptography.)