Cryptography – Communication system using cryptography – Wireless communication
Patent
1998-01-05
2000-08-22
Swann, Tod R.
Cryptography
Communication system using cryptography
Wireless communication
380272, 380273, 380277, 380281, 380284, 455410, 455435, 455551, H04L 900
Patent
active
061084247
ABSTRACT:
The mobile station comprises Traffic Identification Encryption means (TIE) and a memory (54) for storing at least one authentication number (A-key). According to the invention, the protection system comprises a program (61) for encrypting during operation the A-key by the TIE means, and for storing (A1) the encrypted A key, and a program (62) for decrypting, according to the TIE means, the A-key when its non-coded use is needed in the mobile station.
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EIA/TIA (Electronics Industry Association/Telecommunications Industry Association) Interim Standard IS-54, Revisiono B, Apr. 1992, pp. 81-88.
Callahan Paul E.
Halajian Dicran
Swann Tod R.
U.S. Philips Corporation
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