Jay Walker

Billing and collection system for 900-numbers and procedures for on-line computer services

Bruce Schneier, Jay Ridgefield Walker, B. Schneier, 1996 .

Lottery system with off-line remote computers

Bruce Schneier, Jay Ridgefield Walker, B. Schneier, 1996 .

Distributed Proctoring

Bruce Schneier, John Kelsey, Jay Walker, 1996, ESORICS.