Patents Represented by Attorney Michael DeHaemer, Jr.

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  • Method and apparatus for security in a data processing system
    Patent number: 8121296
    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.
    Type: Grant
    Filed: August 20, 2001
    Date of Patent: February 21, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Philip Hawkes, Gregory G. Rose, Raymond T. Hsu, Ramin Rezaiifar