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Martinez-Gonzalez, Ricardo Francisco
- Implementation of a Stream Cipher Based on Bernoulli's Map
Abstract Views :209 |
PDF Views:107
Authors
Affiliations
1 Electrics and Electronics Department, Veracruz Institute of Technology, Veracruz, MX
2 Electronics Department, National Institute of Astrophysics Optics and Electronics, Tonantzintla, MX
1 Electrics and Electronics Department, Veracruz Institute of Technology, Veracruz, MX
2 Electronics Department, National Institute of Astrophysics Optics and Electronics, Tonantzintla, MX
Source
AIRCC's International Journal of Computer Science and Information Technology, Vol 6, No 6 (2014), Pagination: 113-121Abstract
A stream cipher was implemented on a FPGA. The keystream, for some authors the most important element, was developed using an algorithm based on Bernoulli's chaotic map. When dynamic systems are digitally implemented, a normal degradation appears and disturbs their behavior; for such reason, a mechanism was needed. The proposed mechanism gives a solution for degradation issue and its implementation is not complicated. Finally, the implemented cipher includes 8 stages and 2 pseudo-random number generators (PRNG), such cipher was tested using NIST testes. Once its designing stage, it was implemented using a developing FPGA board.Keywords
Chaotic Stream Ciphers, Digitally Implemented Bernoulli’s Map, NIST Testes, FPGA Implementation.Full Text
- Steganographic Substitution of the Least Significant Bit Determined through Analysis of the Cover Image and the Encrypted Message
Abstract Views :245 |
PDF Views:124
Authors
Martha Angelica Garcia-Villa
1,
Ricardo Francisco Martinez-Gonzalez
1,
Juan Francisco Mejia-Perez
1,
Miguel Valerio-Canales
1,
Yesenia Isabel Moreno-Pavan
1
Affiliations
1 Tecnologico Nacional de Mexico/IT Veracruz, Veracruz, MX
1 Tecnologico Nacional de Mexico/IT Veracruz, Veracruz, MX
Source
AIRCC's International Journal of Computer Science and Information Technology, Vol 10, No 6 (2018), Pagination: 31-41Abstract
The present workproposes to perform an analysis of the similarities between the least significant two bits of the cover image and multiple series of two-bit-length encrypted frames, all of them from the crypto-message. After finding the most similar frame, we proceed to substitute it into the cover image; nevertheless, to provide a proof of the improvement from using itor the least similar one, the statistics from both cases are obtained.Providing information that the more similar the frame is, the better statistics the stego-image has. Moreover, the statistics obtained from our work are also compared with other works, finding that we provide a good scheme for hiding information.Keywords
Steganographic Scheme, Information Encryption, Substitution of the Least Significant Bits.Full Text
References
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