US 7,457,953 B2
Method and apparatus to provide secure communication
Carl L. First, Folsom, Calif. (US); and Jesse R. Walker, Portland, Oreg. (US)
Assigned to Intel Corporation, Santa Clara, Calif. (US)
Filed on Dec. 18, 2003, as Appl. No. 10/742,385.
Prior Publication US 2005/0138377 A1, Jun. 23, 2005
Int. Cl. H04L 9/32 (2006.01)
U.S. Cl. 713—169  [726/5] 9 Claims
OG exemplary drawing
 
1. A method, comprising:
determining a first encryption key to use in communicating with a wireless device;
using the first encryption key to wirelessly communicate with the wireless device;
determining a second encryption key to use in communicating with the wireless device;
entering a low power mode subsequent to said determining the first and second encryption keys;
awakening from the low power mode subsequent to said entering; and
determining a third encryption key to communicate with the wireless device subsequent to the awakening if the awakening is in response to a user-initiated action, and otherwise using the second encryption key to communicate with the wireless device subsequent to the awakening.