High speed data encryption technique with optimized memory based RSA algorithm for communications

Purpose The privacy of the information is a major challenge in the communication process. In the present modern generation, the cryptography plays a vital role in providing security for data, such as text, images and video while transmitting from source to destination through internet or intranet. T...

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Bibliographic Details
Published in:Circuit world Vol. 47; no. 3; pp. 269 - 273
Main Authors: Budati, Anil Kumar, Snv, Ganesh, Cherukupalli, Kumar, P, Anil Kumar, Moorthy T, Venkata Krishna
Format: Journal Article
Language:English
Published: Bradford Emerald Publishing Limited 16.08.2021
Emerald Group Publishing Limited
Subjects:
Algorithms
Asymmetry
Cryptography
Data encryption
Encryption
Image transmission
Intranets
Lookup tables
Multiplication
Power consumption
Prime numbers
Privacy
Security
Theorems
Video transmission
Binary approach
RSA
Image encryption
Cryptography
Lookup table
ISSN:0305-6120, 1758-602X
Online Access:Get full text
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Summary:Purpose The privacy of the information is a major challenge in the communication process. In the present modern generation, the cryptography plays a vital role in providing security for data, such as text, images and video while transmitting from source to destination through internet or intranet. The Rivest-Shamir-Adleman (RSA) is an asymmetric key cryptographic system, where the security of the method works on the strength of the key. Design/methodology/approach In an asymmetric key crypto system, a pair of keys is generated one public key for encryption and one private key for decryption. The major challenge of implementing the RSA is the power function which becomes tedious and time consuming as the exponential value increases. The Chinese remainder theorem proves to be the best for data encryption when it comes to execution time of the algorithm. The proposed novel RSA algorithm with lookup table (LUT) is an extension to the Chinese remainder algorithm, which works better for image and video in terms of time complexity. Findings This paper presents a LUT approach for implementing the RSA with a minimal processing time. The proposed algorithm was compared with the standard algorithms like, Chinese remainder theorem, binary approach and squared multiplication approach. As the size of the exponent value increases, the proposed method shows better performance compared to other standard methods. Originality/value This paper presents a LUT approach for implementing the RSA with a minimal processing time. The proposed algorithm was compared with the standard algorithms like, Chinese remainder theorem, binary approach and squared multiplication approach. As the size of the exponent value increases, the proposed method shows better performance compared to other standard methods.
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ISSN:0305-6120
1758-602X
DOI:10.1108/CW-10-2020-0282