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WMCSA
2008
IEEE
14 years 2 months ago
2008
IEEE
We show how to convert regular keyboard-entry CAPTCHAs into clickable CAPTCHAs. The goal of this conversion is to simplify and speed-up the entry of the CAPTCHA solution, to minim...
CCS
2010
ACM
13 years 8 months ago
2010
ACM
We investigate techniques for general black-box mitigation of timing channels. The source of events is wrapped by a timing mitigator that delays output events so that they contain...
CRYPTO
1987
Springer
13 years 11 months ago
1987
Springer
Many distributed systems manage some form of long-lived data, such as files or data bases. The performance and fault-tolerance of such systems may be enhanced if the repositories ...
ICICS
2005
Springer
14 years 1 months ago
2005
Springer
Software that covertly monitors a user’s actions, also known as spyware, has become a first-level security threat due to its ubiquity and the difficulty of detecting and remov...
CHES
2007
Springer
14 years 2 months ago
2007
Springer
Abstract. A5/2 is a synchronous stream cipher that is used for protecting GSM communication. Recently, some powerful attacks [2,10] on A5/2 have been proposed. In this contribution...