1,585 research outputs found
When Chaos Meets Computers
This paper focuses on an interesting phenomenon when chaos meets computers.
It is found that digital computers are absolutely incapable of showing true
long-time dynamics of some chaotic systems, including the tent map, the
Bernoulli shift map and their analogues, even in a high-precision
floating-point arithmetic. Although the results cannot directly generalized to
most chaotic systems, the risk of using digital computers to numerically study
continuous dynamical systems is shown clearly. As a result, we reach the old
saying that "it is impossible to do everything with computers only".Comment: 7 pages, 5 figure
Some hints for the design of digital chaos-based cryptosystems: lessons learned from cryptanalysis
In this work we comment some conclusions derived from the analysis of recent
proposals on the field of chaos-based cryptography. These observations remark
the main problems detected in some of those schemes under examination.
Therefore, this paper is a list of what to avoid when considering chaos as
source of new strategies to conceal and protect information
- …