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» Secure Communication over Parallel Relay Channel
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NDSS
2002
IEEE
14 years 1 months ago
Talking to Strangers: Authentication in Ad-Hoc Wireless Networks
In this paper we address the problem of secure communication and authentication in ad-hoc wireless networks. This is a difficult problem, as it involves bootstrapping trust betwe...
Dirk Balfanz, Diana K. Smetters, Paul Stewart, H. ...
EUROCRYPT
2003
Springer
14 years 2 months ago
CAPTCHA: Using Hard AI Problems for Security
We introduce captcha, an automated test that humans can pass, but current computer programs can’t pass: any program that has high success over a captcha can be used to solve an u...
Luis von Ahn, Manuel Blum, Nicholas J. Hopper, Joh...
IPPS
1999
IEEE
14 years 1 months ago
A Consistent History Link Connectivity Protocol
The RAIN (Reliable Array of Independent Nodes) project at Caltech is focusing on creating highly reliable distributed systems by leveraging commercially available personal compute...
Paul S. LeMahieu, Jehoshua Bruck
CORR
2007
Springer
117views Education» more  CORR 2007»
13 years 9 months ago
Perfectly Secure Steganography: Capacity, Error Exponents, and Code Constructions
An analysis of steganographic systems subject to the following perfect undetectability condition is presented in this paper. Following embedding of the message into the covertext,...
Ying Wang, Pierre Moulin
CCS
2006
ACM
14 years 22 days ago
Hot or not: revealing hidden services by their clock skew
Location-hidden services, as offered by anonymity systems such as Tor, allow servers to be operated under a pseudonym. As Tor is an overlay network, servers hosting hidden service...
Steven J. Murdoch