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Muhammad Rafiq Abuturab - One of the best experts on this subject based on the ideXlab platform.

  • color Information Security System using arnold transform and double structured phase encoding in gyrator transform domain
    Optics and Laser Technology, 2013
    Co-Authors: Muhammad Rafiq Abuturab
    Abstract:

    Abstract A new method for encoding color Information based on Arnold transform and double structured phase encoding in gyrator transform domain is introduced. The phase function of Fresnel zone plate is used as structured phase mask. Prior to the encryption, the decomposed red, green, and blue components of the color image are independently permutated by Arnold transform, transmitted through structured phase mask, and then performed gyrator transform. The System parameters of Arnold transform, structured phase mask, and gyrator transform in each component image provide as encryption keys of the scheme. The proposed System avoids problems arising from misalignment. The optical implementation has also been proposed. Numerical simulations’ results are presented to verify the Security, validity, and possibility of the proposed approach.

  • color Information Security System using discrete cosine transform in gyrator transform domain radial hilbert phase encoding
    Optics and Lasers in Engineering, 2012
    Co-Authors: Muhammad Rafiq Abuturab
    Abstract:

    Abstract A novel color-Information encryption technique based on discrete cosine transform and radial Hilbert phase mask in gyrator transform domain is proposed. In this work, the radial Hilbert phase function is employed as selected phase mask. Before the encryption, the original color image is converted into independent channels, i.e. red, green, and blue. Each channel is encrypted using first random phase mask and discrete cosine transform at input plane, and then the first gyrator transform is executed. The obtained image is again encrypted using second random phase mask and discrete cosine transform at frequency plane, and then transmitted through radial Hibert phase mask. The gyrator transform is performed on the transmitted image. The integral orders of radial Hibert phase mask and transformation angles of gyrator transform in each channel provide supplementary keys to enhance the Security. The proposed System evades the misalignment problems. Numerical simulations are demonstrated to test the Security, validity, and efficiency of the proposed algorithm.

Kehar Singh - One of the best experts on this subject based on the ideXlab platform.

  • Error analysis for a lens-less in-line digital holographic complex Information Security System based on double random phase encoding
    Optics and Lasers in Engineering, 2009
    Co-Authors: Anith Nelleri, Joby Joseph, Kehar Singh
    Abstract:

    We study the error tolerance properties of double random phase encoding implemented in the case of a lens-less whole (both amplitude and phase) Information Security System based on in-line digital holography. A generalized position-phase-shifting in-line digital holographic method is used as a tool for implementing our Information Security System. The effect on the decrypted image, due to additive and multiplicative noises in the retrieved complex encrypted image, is studied. The quality of the decrypted complex data is quantified by computing signal-to-noise ratio (SNR) and the mean square error (MSE). We also study the System tolerance due to the data loss and binarization of encrypted retrieved complex hologram. Results from numerical experiments are presented.

Victor A. Skormin - One of the best experts on this subject based on the ideXlab platform.

  • RSFDGrC - Ontology-Based Multi-Agent Model of an Information Security System
    Lecture Notes in Computer Science, 1999
    Co-Authors: Vladimir I. Gorodetski, Leonard J. Popyack, Igor Kotenko, Victor A. Skormin
    Abstract:

    The paper is focused on a distributed agent-based Information Security System of a computer network. A multi-agent model of an Information Security System is proposed. It is based on the established ontology of the Information Security System domain. Ontology is used as a means of structuring distributed knowledge, utilized by the Information Security System, as the common ground of interacting agents as well as for the agent behavior coordination.

Anith Nelleri - One of the best experts on this subject based on the ideXlab platform.

  • Error analysis for a lens-less in-line digital holographic complex Information Security System based on double random phase encoding
    Optics and Lasers in Engineering, 2009
    Co-Authors: Anith Nelleri, Joby Joseph, Kehar Singh
    Abstract:

    We study the error tolerance properties of double random phase encoding implemented in the case of a lens-less whole (both amplitude and phase) Information Security System based on in-line digital holography. A generalized position-phase-shifting in-line digital holographic method is used as a tool for implementing our Information Security System. The effect on the decrypted image, due to additive and multiplicative noises in the retrieved complex encrypted image, is studied. The quality of the decrypted complex data is quantified by computing signal-to-noise ratio (SNR) and the mean square error (MSE). We also study the System tolerance due to the data loss and binarization of encrypted retrieved complex hologram. Results from numerical experiments are presented.

Peng Zhang - One of the best experts on this subject based on the ideXlab platform.

  • Information Security System based on virtual-optics imaging methodology and public key infrastructure
    Optik, 2005
    Co-Authors: Xiang Peng, Peng Zhang
    Abstract:

    Summary In this paper, we present a virtual-optical based Information Security System model with the aid of public-key-infrastructure (PKI) techniques. The proposed model employs a hybrid architecture in which our previously published encryption algorithm based on virtual-optics imaging methodology (VOIM) can be used to encipher and decipher data while an asymmetric algorithm, for example RSA, is applied for enciphering and deciphering the session key(s). For an asymmetric System, given an encryption key, it is computationally infeasible to determine the decryption key and vice versa. The whole Information Security model is run under the framework of PKI, which is on basis of public-key cryptography and digital signatures. This PKI-based VOIM Security approach has additional features like confidentiality, authentication, and integrity for the purpose of data encryption under the environment of network.

  • Virtual-optical Information Security System based on public key infrastructure
    Information Optics and Photonics Technology, 2005
    Co-Authors: Xiang Peng, Peng Zhang
    Abstract:

    A virtual-optical based encryption model with the aid of public key infrastructure (PKI) is presented in this paper. The proposed model employs a hybrid architecture in which our previously published encryption method based on virtual-optics scheme (VOS) can be used to encipher and decipher data while an asymmetric algorithm, for example RSA, is applied for enciphering and deciphering the session key(s). The whole Information Security model is run under the framework of international standard ITU-T X.509 PKI, which is on basis of public-key cryptography and digital signatures. This PKI-based VOS Security approach has additional features like confidentiality, authentication, and integrity for the purpose of data encryption under the environment of network. Numerical experiments prove the effectiveness of the method. The Security of proposed model is briefly analyzed by examining some possible attacks from the viewpoint of a cryptanalysis.