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CORR
2011
Springer

The weak password problem: chaos, criticality, and encrypted p-CAPTCHAs

7 years 11 months ago
The weak password problem: chaos, criticality, and encrypted p-CAPTCHAs
- Vulnerabilities related to weak passwords are a pressing global economic and security issue. We report a novel, simple, and effective approach to address the weak password problem. Building upon chaotic dynamics, criticality at phase transitions, CAPTCHA recognition, and computational round-off errors we design an algorithm that strengthens security of passwords. The core idea of our method is to split a long and secure password into two components. The first component is memorized by the user. The second component is transformed into a CAPTCHA image and then protected using evolution of a two-dimensional dynamical system close to a phase transition, in such a way that standard brute-force attacks become ineffective. We expect our approach to have wide applications for authentication and encryption technologies.
T. V. Laptyeva, S. Flach, K. Kladko
Added 19 Aug 2011
Updated 19 Aug 2011
Type Journal
Year 2011
Where CORR
Authors T. V. Laptyeva, S. Flach, K. Kladko
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