Information security – Access control or authentication – Network
Reexamination Certificate
2007-02-27
2007-02-27
Wright, Norman M. (Department: 2134)
Information security
Access control or authentication
Network
C726S005000, C726S007000, C726S009000, C726S017000, C726S019000, C726S030000, C380S044000, C380S201000, C380S223000, C380S226000
Reexamination Certificate
active
10233188
ABSTRACT:
Method and apparatus for secure transmissions. Each user is provided a registration key. A long-time updated broadcast key is encrypted using the registration key and provided periodically to a user. A short-time updated key is encrypted using the broadcast key and provided periodically to a user. Broadcasts are then encrypted using the short-time key, wherein the user decrypts the broadcast message using the short-time key. One embodiment provides link layer content encryption. Another embodiment provides end-to-end encryption.
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Agashe Parag A.
Bender Paul E.
Hawkes Philip Michael
Hsu Raymond T.
Mahendran Arungundram C.
Mobarhan Ramin
Nguyen Thien T
Qualcomm Incorporated
Rouse Thomas R
Wright Norman M.
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