High speed data encryption technique with optimized memory based RSA algorithm for communications. Issue 3 (22nd June 2021)

• Record Type: Journal Article
• Authors: Budati, Anil Kumar; Snv, Ganesh; Cherukupalli, Kumar; P., Anil Kumar; Moorthy T., Venkata Krishna
• Is Part Of: Circuit world. Volume 47:Issue 3(2021)
• Page Start: 269
• Page End: 273
• Publication Date: 2021-06-22
• Subjects: Cryptography -- Binary approach -- RSA -- Image encryption -- Lookup table; Electronic circuits -- Design and construction -- Periodicals; Electronic circuits -- Periodicals; 621.381505
• DOI: 10.1108/CW-10-2020-0282
• Languages: English
• ISSNs: 0305-6120

Abstract

Abstract : 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.