An optimised homomorphic CRT-RSA algorithm for secure and efficient communication

Abstract Secure and reliable exchange of information between devices is crucial for any network in the current digital world. This maintained on storage devices, routing communication over cloud. Cryptographic techniques are used to ensure secure transmission data, ensuring user’s privacy by storing transmitting data a particular format. Using encryption, only intended user possessing key can access information. During or essential transmission, channel should be secured using robust encryption techniques. Homomorphic Encryption (HE) have been past this purpose. However, one flaws conventional HE seen either its slow fast decryption. Thus, paper proposes an optimized Chinese Remainder Theorem with Rivest-Shamir-Adleman (HE-CRT-RSA) algorithm overcome challenge. The proposed Technique, HE-CRT-RSA, utilizes multiple keys efficient security. In addition, performance HE-CRT-RSA was evaluated comparison classical RSA algorithm. result shows improvement reduced decryption time. It observed that 3–4% faster than (RSA). also suggests effectively enhances security issues cloud helps decrease involvement intruders third party during inside data/server centers.