In recent years, instant messaging (IM) has become a popular medium of online communication. While IM is expanding into the enterprise beyond personal use, it brings the convenien...
Since the early days of networks, a basic principle has been that endpoints treat the network as a black box. An endpoint injects a packet with a destination address and the netwo...
Paolo Costa, Thomas Zahn, Antony I. T. Rowstron, G...
This paper discusses issues of personalization of presence services in the context of Internet Telephony. Such services take into consideration the willingness and ability of a use...
With the increase of automated teller machine (ATM) frauds, new authentication mechanisms are developed to overcome security problems of personal identification numbers (PIN). Th...
Alexander De Luca, Marc Langheinrich, Heinrich Hus...
Given the widespread use of password authentication in online correspondence, subscription services, and shopping, there is growing concern about identity theft. When people reuse...