Matt Blaze. Key escrow from a safe distance: looking back at the Clipper Chip. In Robert H'obbes' Zakon, John P. McDermott, Michael E. Locasto, editors, Twenty-Seventh Annual Computer Security Applications Conference, ACSAC 2011, Orlando, FL, USA, 5-9 December 2011. pages 317-321, ACM, 2011. [doi]
Abstract is missing.