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JSAC
2008
14 years 10 months ago
2008
Abstract--The concept of cognitive radio (or secondary spectrum access) is currently under investigation as a promising paradigm to achieve efficient use of the frequency resource ...
CCS
2007
ACM
15 years 4 months ago
2007
ACM
We describe a new attack against web authentication, which we call dynamic pharming. Dynamic pharming works by hijacking DNS and sending the victim’s browser malicious Javascrip...
SIGCOMM
2003
ACM
15 years 3 months ago
2003
ACM
Launching a denial of service (DoS) attack is trivial, but detection and response is a painfully slow and often a manual process. Automatic classification of attacks as single- o...
WWW
2009
ACM
15 years 10 months ago
2009
ACM
We present a new CAPTCHA which is based on identifying an image's upright orientation. This task requires analysis of the often complex contents of an image, a task which hum...
ICC
2008
IEEE
15 years 4 months ago
2008
IEEE
— The analytical end-to-end (e2e) performance of a wireless multihop network is largely unknown, because of the interconnections between several factors involved. Customarily, th...