Abstract. Ever-growing mobility and ubiquitous wireless Internet access raise the need for secure communication with devices that may be severely constrained in terms of processing...
— Recently, establishing a VoIP call using a P2P network instead of regular SIP-servers has been proposed; this novel approach to SIP-signaling is commonly referred to as P2PSIP ...
Jan Seedorf, Frank Ruwolt, Martin Stiemerling, Sav...
We systematically study the design of image recognition CAPTCHAs (IRCs) in this paper. We first review and examine all IRCs schemes known to us and evaluate each scheme against th...
Bin B. Zhu, Jeff Yan, Qiujie Li, Chao Yang, Jia Li...
In this paper, we present a password stretching method using user specific salts. Our scheme takes similar time to stretch a password as recent password stretching algorithms, but...
Most well-known Internet worms, such as Code Red, Slammer, and Blaster, infected vulnerable computers by scanning the entire Internet IPv4 space. In this paper, we present a new s...
Cliff Changchun Zou, Donald F. Towsley, Weibo Gong...