Cryptography – Key management – Having particular key generator
Patent
1994-07-05
1995-11-14
Barron, Jr., Gilberto
Cryptography
Key management
Having particular key generator
380 21, 380 23, H04L 922, H04L 932, H04L 916
Patent
active
054673984
ABSTRACT:
A communication system (100) employs a method of messaging between a subscriber unit (105) and an infrastructure communication center (101). A messaging key associated with a subscriber unit reference number is provided (203, 403) to the subscriber unit (105) and to the infrastructure communication center (101). An authentication key and/or an identifier for the subscriber unit (105) is then produced (300, 407) by either the subscriber unit (105) or the infrastructure communication center (101). The authentication key and/or the identifier is encrypted (207, 413) with the messaging key and is subsequently communicated (209, 415) between the subscriber unit (105) and the infrastructure communication center (101).
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Brown Daniel P.
Finkelstein Louis D.
Krebs Jay R.
Pierce Jennifer A.
Barron Jr. Gilberto
Crilly Daniel C.
Motorola Inc.
Toler Jeffrey G.
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