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DYNA

versão impressa ISSN 0012-7353

Resumo

JIMENEZ-RODRIGUEZ, Maricela et al. Secure point-to-point communication using chaos. Dyna rev.fac.nac.minas [online]. 2016, vol.83, n.197, pp.180-186. ISSN 0012-7353.  http://dx.doi.org/10.15446/dyna.v83n197.53506.

This article presents an alternative for resolving the existing vulnerability of systems that implement masking by means of chaotic synchronization. This system avoids detection of the parameters used as the cipher key by an attacker on implementing encryption by means of synchronized chaotic-phase masks of the Rössler oscillator, for encoding and establishing synchronization among transmitter-receiver devices. In addition, it employs two ciphering keys: the first, with a recommended length of 2,048 characters, and the second, which is used as an initial value. Both keys are employed for continual modification of one of the oscillator's parameters. This strengthens the security system and avoiding an attacker from obtaining the oscillator's parametric values by calculating the least average synchronization error. The use of the system developed provides a cipher, which is resistant to statistical attacks. In addition, our system validates the data of the transmitter device (username, password, etc.) in order to authorize transmission.

Palavras-chave : authentication; data encryption; security; integrity; chaos.

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