Algebraic Methods in Design and Analysis of Stream Ciphers

该项目调查的问题，在移动的环境中的通信安全的保密性和真实性都是首要关注的。流密码是移动的环境中非常自然的选择，因为它们使用有限的计算资源提供有效的密码保护。我们将流密码建模为一个多元方程组。在这种方法中，流密码的安全性可以通过求解适当方程组的算法的复杂度来衡量。这个项目导致新技术的设计和分析的流密码。

The project investigates the problem of communication security in the mobile environment where both confidentiality and authenticity are of prime concern. Stream ciphers are a very natural choice in mobile environment as they provide an efficient cryptographic protection using a limited computing resources. We model stream cipher as a system of multivariate equations. In this approach, security of stream ciphers can be measured as the complexity of an algorithm that solves the appropriate system of equations. This project leads to new techniques for the design and analysis of stream ciphers.