HIP
2005
Springer
13 years 11 months ago
2005
Springer
In this paper, we propose a new class of Human Interactive Proofs (HIPs) that allow a human to distinguish one computer from another. Unlike traditional HIPs, where the computer is...
HIP
2005
Springer
13 years 11 months ago
2005
Springer
Abstract. Current CAPTCHAs require users to solve objective questions such as text recognition or image recognition. We propose a class of CAPTCHAs based on collaborative filterin...
HIP
2005
Springer
13 years 11 months ago
2005
Springer
Human interaction proofs (HIPs) have become common place on the internet due to their effectiveness in deterring automated abuse of online services intended for humans. However, th...
HIP
2005
Springer
13 years 11 months ago
2005
Springer
Abstract. We would like to quantify the assurance contained in an authentication secret. For instance, how much assurance does a customer convey to a bank by revealing that his Per...
HIP
2005
Springer
13 years 11 months ago
2005
Springer
A CAPTCHA which humans find to be highly legible and which is designed to resist automatic character–segmentation attacks is described. As first detailed in [BR05], these ‘Sc...
FSE
2005
Springer
13 years 11 months ago
2005
Springer
FSE
2005
Springer
13 years 11 months ago
2005
Springer
For the power consumption model called Hamming weight model, we rewrite DPA attacks in terms of correlation coefficients between two Boolean functions. We exhibit properties of S-b...
FSE
2005
Springer
13 years 11 months ago
2005
Springer
So far, efficient algorithmic countermeasures to secure the AES algorithm against (first-order) differential side-channel attacks have been very expensive to implement. In this a...
FSE
2005
Springer
13 years 11 months ago
2005
Springer
Abstract. In this paper, we propose a 2/3-rate double length compression function and study its security in the black-box model. We prove that to get a collision attack for the com...
FSE
2005
Springer
13 years 11 months ago
2005
Springer
Abstract. This paper discusses the state-of-the-art software optimization methodology for symmetric cryptographic primitives on Pentium III and 4 processors. We aim at maximizing s...