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» A Study on the Security of Privacy Homomorphism
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ACSAC
2009
IEEE
15 years 4 months ago
Enabling Secure Secret Sharing in Distributed Online Social Networks
—We study a new application of threshold-based secret sharing in a distributed online social network (DOSN), where users need a means to back up and recover their private keys in...
Le-Hung Vu, Karl Aberer, Sonja Buchegger, Anwitama...
SOUPS
2009
ACM
15 years 4 months ago
Balancing usability and security in a video CAPTCHA
We present a technique for using content-based video labeling as a CAPTCHA task. Our CAPTCHAs are generated from YouTube videos, which contain labels (tags) supplied by the person...
Kurt Alfred Kluever, Richard Zanibbi
ACNS
2008
Springer
143views Cryptology» more  ACNS 2008»
15 years 4 months ago
On the Security of the CCM Encryption Mode and of a Slight Variant
In this paper, we present an analysis of the CCM mode of operations and of a slight variant. CCM is a simple and efficient encryption scheme which combines a CBC-MAC authentication...
Pierre-Alain Fouque, Gwenaëlle Martinet, Fr&e...
SP
2007
IEEE
15 years 4 months ago
The Emperor's New Security Indicators
We evaluate website authentication measures that are designed to protect users from man-in-the-middle, ‘phishing’, and other site forgery attacks. We asked 67 bank customers t...
Stuart E. Schechter, Rachna Dhamija, Andy Ozment, ...
SP
2007
IEEE
105views Security Privacy» more  SP 2007»
15 years 4 months ago
Multi-Dimensional Range Query over Encrypted Data
We design an encryption scheme called Multi-dimensional Range Query over Encrypted Data (MRQED), to address the privacy concerns related to the sharing of network audit logs and v...
Elaine Shi, John Bethencourt, Hubert T.-H. Chan, D...