On the Use of Continued Fractions for Stream Ciphers

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Provided by: Universite Joseph Fourier
Topic: Security
Format: PDF
The one time pad is presently known as one of the simplest and fastest encryption methods. In binary data, applying a onetime pad algorithm consists of combining the pad and the plain text with XOR. In this paper, the authors present a new approach to stream ciphers. This method draws its strength from public key algorithms such as RSA and the development in continued fractions of certain irrational numbers to produce a pseudo-random stream. Although the encryption scheme proposed in this paper is based on a hard mathematical problem, its use is fast.
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