Apparatus and method for encryption key generation

Details Apparatus and method for encryption key generation Apparatus and method for encryption key generation

1998-03-04

2000-07-25

Swann, Tod R.

Cryptography

Communication system using cryptography

Wireless communication

380273, 380274, 380 43, 380278, 380279, 380283, 455410, 455411, H04K 100

Patent

active

060944870

ABSTRACT:
An encryption key generation system generates encryption keys at both an originating terminal and a terminating terminal of a wireless network. A central controller generates a shared secret based on the identification information of a requesting terminal and a first number, which may be random. The central controller broadcasts the first number to all terminals. A second number is generated by the central controller incorporating the shared secret data and the terminating terminal's identification information. The requesting terminal generates the shared secret data using the first number and predetermined algorithms and generates an encryption key based on the first number and the shared secret data. The terminating terminal decodes the shared secret data from the second number, and generates the same encryption key using the first number and the shared secret data.

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