A prerequisite for secure communication between two nodes in an ad hoc network is that the nodes share a key to bootstrap their trust relationship. In this paper, we present a sca...
We introduce captcha, an automated test that humans can pass, but current computer programs can’t pass: any program that has high success over a captcha can be used to solve an u...
Luis von Ahn, Manuel Blum, Nicholas J. Hopper, Joh...
The Border Gateway Protocol (BGP), which is used to distribute routing information between autonomous systems, is an important component of the Internet’s routing infrastructure...
Stephen T. Kent, Charles Lynn, Joanne Mikkelson, K...
The desire for exible networking services has given rise to the concept of active networks." Active networks provide a general framework for designing and implementing network...
D. Scott Alexander, William A. Arbaugh, Angelos D....
Current collaborative tools are often not able to profit from existing systems for user management. It is therefore necessary for collaborative systems to administrate their users ...