We investigate the protection of migrating agents against the untrusted sites they traverse. The resulting calculus provides a formal framework to reason about protection policies ...
A solution for obtaining impartial random values in on-line gambling is presented in this paper. Unlike most previous proposals, our method does not require any TTP and allows e-ga...
Undeniable signature has been extensively researched after Chaum and Antwerpen first proposed the concept of this special digital signature ten years ago. Up to now, however, almo...
We propose a new anonymous fingerprinting scheme using Okamoto-Uchiyama cryptosystem[1]. In the previous schemes[2]-[4] the enciphering rate is so small that it seems very difficu...
There is a new emerging world of web services. In this world, services will be combined in innovative ways to form elaborate services out of building blocks of other services. Thi...