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ASIACRYPT
2003
Springer
14 years 2 months ago
Efficient Group Signatures without Trapdoors
Abstract. Group signature schemes are fundamental cryptographic tools that enable unlinkably anonymous authentication, in the same fashion that digital signatures provide the basis...
Giuseppe Ateniese, Breno de Medeiros
CHI
2007
ACM
14 years 11 months ago
Pictures at the ATM: exploring the usability of multiple graphical passwords
Users gain access to cash, confidential information and services at Automated Teller Machines (ATMs) via an authentication process involving a Personal Identification Number (PIN)...
Wendy Moncur, Grégory Leplâtre
TIT
2008
84views more  TIT 2008»
13 years 10 months ago
Information Theoretic Bounds on Authentication Systems in Query Model
Authentication codes provide message integrity guarantees in an information theoretic sense within a symmetric key setting. Information theoretic bounds on the success probability...
Reihaneh Safavi-Naini, Peter R. Wild
CEAS
2008
Springer
14 years 27 days ago
Improving Email Trustworthiness through Social-Group Key Authentication
The increasing use of email for phishing and unsolicited marketing has reduced the trustworthiness of email as a communication medium. Sender authentication is a known defense aga...
Vivek Pathak, Liviu Iftode, Danfeng Yao
ICIP
2005
IEEE
15 years 17 days ago
Localization and security enhancement of block-based image authentication
Most block-based image authentication techniques that are presented in the literature sacrifice localization accuracy in order to resist vector quantization (VQ) counterfeiting att...
Abdelkader H. Ouda, Mahmoud R. El-Sakka