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» Countering Automated Exploits with System Security CAPTCHAS
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SPW
2005
Springer
8 years 11 months ago
Countering Automated Exploits with System Security CAPTCHAS
Abstract. Many users routinely log in to their system with system administrator privileges. This is especially true of home users. The advantage of this setup is that these users c...
Dinan Gunawardena, Jacob Scott, Alf Zugenmaier, Au...
SAC
2010
ACM
9 years 1 months ago
CAPTCHA smuggling: hijacking web browsing sessions to create CAPTCHA farms
CAPTCHAs protect online resources and services from automated access. From an attacker’s point of view, they are typically perceived as an annoyance that prevents the mass creat...
Manuel Egele, Leyla Bilge, Engin Kirda, Christophe...
ACSAC
2010
IEEE
8 years 4 months ago
Breaking e-banking CAPTCHAs
Many financial institutions have deployed CAPTCHAs to protect their services (e.g., e-banking) from automated attacks. In addition to CAPTCHAs for login, CAPTCHAs are also used to...
Shujun Li, S. Amier Haider Shah, M. Asad Usman Kha...
EUROCRYPT
2003
Springer
8 years 11 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...
MM
2005
ACM
114views Multimedia» more  MM 2005»
8 years 11 months ago
IMAGINATION: a robust image-based CAPTCHA generation system
We propose IMAGINATION (IMAge Generation for INternet AuthenticaTION), a system for the generation of attack-resistant, user-friendly, image-based CAPTCHAs. In our system, we prod...
Ritendra Datta, Jia Li, James Ze Wang
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