December 12, 2017
Comments Off on Cooperative Caching for Efficient Data Access in Disruption Tolerant Networks
Posted in: IEEE 2017, Java
Cooperative Caching for Efficient Data Access in Disruption Tolerant Networks Disruption tolerant networks (DTNs) are characterized by low node density, unpredictable node mobility, and lack of global network information. Most of current research efforts in DTNs focus on dataforwarding, but only limited work has been done on providing efficient data access to mobile users. In this paper, we propose a novel approach to support cooperative caching in DTNs, […]
December 12, 2017
Comments Off on Captcha as Graphical Passwords�A New Security Primitive Based on Hard AI Problems
Posted in: IEEE 2017, Java
Captcha as Graphical Passwords—A New Security Primitive Based on Hard AI Problems Many security primitives are based on hard mathematical problems. Using hard AI problems forsecurity is emerging as an exciting new paradigm, but has been under-explored. In this paper, we present a new security primitive based on hard AI problems, namely, a novel family of graphicalpassword systems built on top of Captcha technology, which we call Captcha as graphical passwords(CaRP). CaRP is both a Captcha and a graphical password scheme. CaRP addresses a number ofsecurity problems altogether, such as […]