Crossfire attack is a recently proposed threat designed to disconnect whole geographical areas, such as cities or states, from the Internet. Orchestrated in multiple phases, the attack uses a massively distributed botnet to generate low-rate benign traffic aiming to congest selected network links, so-called target links. The adoption of benign traffic, while simultaneously targeting multiple ne...

SecurID is a widely used hardware token for strengthening authentication in a corporate environment. Recently, Biryukov, Lano, and Preneel presented an attack on the alleged SecurID hash function [1]. They showed that vanishing differentials – collisions of the hash function – occur quite frequently, and that such differentials allow an attacker to recover the secret key in the token much faste...

SecurID is a widely used hardware token for strengthening authentication in a corporate environment. Recently, Biryukov, Lano, and Preneel presented an attack on the alleged SecurID hash function [1]. They showed that vanishing differentials – collisions of the hash function – occur quite frequently, and that such differentials allow an attacker to recover the secret key in the token much faste...

Since the DARPA Intrusion Detection Evaluation Data Set [2] was made available in 1998, and then updated in 1999 and 2000, it seems that no other significant freely available data sets have been provided to allow benchmarking of Intrusion Detection Systems (IDS). Even if those traffic traces are still used by the security research community, they have not been updated since. The absence of addi...

Tourists and visitors represent a valuable and appreciated element of many countries and many communities. Anecdotal evidence suggests that these tourists and visitors are at great risk of being victims of violent and property crimes in the cities they visit. This paper assesses the relationship between the number of visitors to various cities and the types and patterns of crimes, over time, in...