Affiliation:
1. Vellore Institute of Technology, India
Abstract
This chapter investigates the security issues identified with the file cloud storage to ensure the security of client information in cloud information server. The authors have proposed a modified RSA algorithm with multiple keys and CRT to ensure confidentiality of data coupled with hashing through SHA-512 to maintain integrity. This work has made a secure data exchange app where files are encrypted using the RSA-CRT algorithm and hashed later. On successfully implementing the work, they observed that the proposed technique is more secure than the original RSA algorithm and RSA-CRT. Furthermore, it enhanced the algorithm performance for decryption because it employed the CRT for decryption; thus, the proposed technique proved to be faster than RSA with multi keys.
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