Prerana Sharma

  • Citations Per Year
Learn More
We propose an algorithm that shows improvement in computation timeof existing image encryption-decryption methods. The algorithm also introduces additional one-level of encryption key into the existing methods. Image compression properties of the <i>DWT</i> (Discrete Wavelet Transform) are utilized to bring the improvement. The new algorithms retain(More)
We propose three novel algorithms for video encryption and decryption. The algorithms insert one-level of encryption key into the existing methods. Data compression properties of the DWT (Discrete Wavelet Transform) are utilized to make the algorithm faster. The new algorithms retain the robustness of existing image encryption-decryption algorithms. A video(More)
This paper presents the cross focusing of two high power lasers by taking off-axial contributions of the laser beams in a collisionless plasma. Due to relativistic and ponderomotive nonlinearities the two laser beams affect the dynamics of each other and cross focusing takes place. The expressions for the laser beam intensities by using the eikonal method(More)
Largely used in the design of multichip modules, the models of passive components currently available in circuit simulators have the disadvantage of not incorporating the very significant effects of electromagnetic coupling on radio and microwave frequencies. The concept of the generation of precise and rapid neural models, which integrate the coupling(More)
  • 1