The Experts below are selected from a list of 18 Experts worldwide ranked by ideXlab platform

Eduardo Boemo - One of the best experts on this subject based on the ideXlab platform.

  • Digital Signal Transmission with Chaotic Encryption: Design and Evaluation of a FPGA Realization
    arXiv: Cryptography and Security, 2004
    Co-Authors: C. Gonzalez, Hilda A. Larrondo, Carlos Arturo Gayoso, Leonardo Arnone, Eduardo Boemo
    Abstract:

    A discrete-time discrete-value pseudo-chaotic encoder/decoder system is presented. The pseudo-chaotic module is a 3D discrete version of the well-known Lorenz dynamical system. Scaling and biasing transformations as well as natural number arithmetics are employed in order to simplify realizations on a small size Field Programmable Gate Array (FPGA. The encryption ability is improved by using only the least significant byte of one of the pseudo chaotic state variables as the key to encrypt the plain text. The key is periodically perturbed by another chaotic state variable. The statistical properties of the pseudo chaotic cipher are compared with those of other pseudo-random generators available in the literature. As an example of applicability of the technique, a full duplex communication system is designed and constructed using FPGA's as technological framework.

Sumangala Biradar - One of the best experts on this subject based on the ideXlab platform.

  • RTIP2R (2) - Medical Image Encryption with Integrity Using DNA and Chaotic Map.
    Communications in Computer and Information Science, 2019
    Co-Authors: Prema T. Akkasaligar, Sumangala Biradar
    Abstract:

    In current era the medical field is digitalizing. In digitalization, internet is playing the main role which is open source. Hence security is the major issue, particularly in medical field integrity, confidentiality and security are very significant issues. To provide this, a novel approach using SHA-256, Deoxyribonucleic Acid (DNA) cryptography and a chaotic map is proposed in this paper. The integrity for digital medical image is very important because slight modification also becomes very big problem. Diagnosing exact disease from slightly modified digital medical image is highly impossible. Hence in this paper we are mainly concentrating on integrity. For integrity purpose initially, the hash key is generated using SHA-256 and is hidden in the least significant byte (LSB) of digitalized medical image. The image is encoded using DNA coding rules to provide security. The encoded DNA matrix pixels are shuffled and diffused using Chen’s hyper chaotic map. The simulation results proved that the proposed method is resist against differential, exhaustive and statistical attacks.

C. Gonzalez - One of the best experts on this subject based on the ideXlab platform.

  • Digital Signal Transmission with Chaotic Encryption: Design and Evaluation of a FPGA Realization
    arXiv: Cryptography and Security, 2004
    Co-Authors: C. Gonzalez, Hilda A. Larrondo, Carlos Arturo Gayoso, Leonardo Arnone, Eduardo Boemo
    Abstract:

    A discrete-time discrete-value pseudo-chaotic encoder/decoder system is presented. The pseudo-chaotic module is a 3D discrete version of the well-known Lorenz dynamical system. Scaling and biasing transformations as well as natural number arithmetics are employed in order to simplify realizations on a small size Field Programmable Gate Array (FPGA. The encryption ability is improved by using only the least significant byte of one of the pseudo chaotic state variables as the key to encrypt the plain text. The key is periodically perturbed by another chaotic state variable. The statistical properties of the pseudo chaotic cipher are compared with those of other pseudo-random generators available in the literature. As an example of applicability of the technique, a full duplex communication system is designed and constructed using FPGA's as technological framework.

Prema T. Akkasaligar - One of the best experts on this subject based on the ideXlab platform.

  • RTIP2R (2) - Medical Image Encryption with Integrity Using DNA and Chaotic Map.
    Communications in Computer and Information Science, 2019
    Co-Authors: Prema T. Akkasaligar, Sumangala Biradar
    Abstract:

    In current era the medical field is digitalizing. In digitalization, internet is playing the main role which is open source. Hence security is the major issue, particularly in medical field integrity, confidentiality and security are very significant issues. To provide this, a novel approach using SHA-256, Deoxyribonucleic Acid (DNA) cryptography and a chaotic map is proposed in this paper. The integrity for digital medical image is very important because slight modification also becomes very big problem. Diagnosing exact disease from slightly modified digital medical image is highly impossible. Hence in this paper we are mainly concentrating on integrity. For integrity purpose initially, the hash key is generated using SHA-256 and is hidden in the least significant byte (LSB) of digitalized medical image. The image is encoded using DNA coding rules to provide security. The encoded DNA matrix pixels are shuffled and diffused using Chen’s hyper chaotic map. The simulation results proved that the proposed method is resist against differential, exhaustive and statistical attacks.

Hilda A. Larrondo - One of the best experts on this subject based on the ideXlab platform.

  • Digital Signal Transmission with Chaotic Encryption: Design and Evaluation of a FPGA Realization
    arXiv: Cryptography and Security, 2004
    Co-Authors: C. Gonzalez, Hilda A. Larrondo, Carlos Arturo Gayoso, Leonardo Arnone, Eduardo Boemo
    Abstract:

    A discrete-time discrete-value pseudo-chaotic encoder/decoder system is presented. The pseudo-chaotic module is a 3D discrete version of the well-known Lorenz dynamical system. Scaling and biasing transformations as well as natural number arithmetics are employed in order to simplify realizations on a small size Field Programmable Gate Array (FPGA. The encryption ability is improved by using only the least significant byte of one of the pseudo chaotic state variables as the key to encrypt the plain text. The key is periodically perturbed by another chaotic state variable. The statistical properties of the pseudo chaotic cipher are compared with those of other pseudo-random generators available in the literature. As an example of applicability of the technique, a full duplex communication system is designed and constructed using FPGA's as technological framework.