Tamper-resistant PC processor that contained an encryption formula, originally proposed by the U.S. government, but abandoned due to widespread opposition. 12.17

A tamper-resistant VLSI chip designed by NSA for encrypting voice communications. It conforms to the Escrow Encryption Standard (EES) and implements the Skipjack encryption algorithm.

An NSA-designed chip used for encrypting conversations

A computer chip that encodes digital data for use over digital telephone lines. The Clipper Chip was introduced by the U.S. government with the support of AT&T. See The Clipper Chip by Jerry Whelan of Bradley University.

The Clipper chip is a chipset that was developed and promoted by the U.S. Government as an encryption device to be adopted by telecommunications companies for voice transmission. It was announced in 1993 and by 1996 was entirely defunct.