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A new cryptosystem approach based on Lorenz chaotic systems is presented for secure data transmission. The system uses a stream cipher, in which the encryption key varies continuously. Furthermore one or more of the parameters of the Lorenz generator is controlled by an auxiliary chaotic generator for increased security. The system is implemented by using two separate Spartan 6 FPGA boards. Security...
This paper describes the FPGA implementation of chaotic based advanced encryption standard (AES) using pipeline technique. The algorithm is a combination of chaotic maps and AES. In the proposed architecture, AES key is generated by chaotic maps and encryption is done by AES. The internal operations of each round of AES are optimized and parallel RAMs are used to implement the Sub-Bytes operation...
Coming of the Popular Science indicates the rapid development of information communication. It has brought great changes to our lives, but the subsequent problems of information security are bothering us. Looking for an efficient and safe way to protect the information security has become an important problem that needs to be solved urgently. In recent years, data encryption system based on chaotic...
In this paper, a novel approach is developed for multi-images encryption and decryption by using single discrete time chaotic system and anti-control methodology. The field programmable gate array (FPGA) embedded implementations are demonstrated, and the corresponding NIST safety performance test results are also given.
This paper proposes a new scheme design and hardware implementation of wireless transmission system based on FPGA and chaotic encryption with A5/1 algorithm. This design uses FPGA chip as the encryption core, in which Logistic system generates the initial key and encrypts the plaintext combined with A5/1 algorithm, then it uses SIM300 module to realize wireless transmission. Develop two test boards...
Chaotic encryption schemes are believed to provide a greater level of security than conventional ciphers. In this paper, a chaotic stream cipher is first constructed and then its hardware implementation details using FPGA technology are provided. Logistic map is the simplest chaotic system and has a high potential to be used to design a stream cipher for real-time embedded systems. The cipher uses...
This paper proposes a new and efficient way to deal with the chaotic synchronization for embedded hardware cryptosystems and its FPGA implementation for designing a real time image secure symmetric encryption scheme. The implementation and experimental results mapped on two Xilinx FPGA Virtex technology platforms demonstrate the feasibility and the usefulness of our secure solution. The originality...
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