Secure Database Encryption in Web Applications

Abstract: In this paper we describe, the Secure databases has become increasingly crucial in all application areas. Database encryption is an important mechanism to secure databases from attacks and unauthorised access. The Transposition-Substitution-Folding-Shifting encryption algorithm (TSFS) is a symmetric database encryption algorithm that is a expansion technique to provide high security: it improves the efficiency of query execution time by encrypting the sensitive data only. However, it applies merely for the alphanumeric characters and numeric keys. This paper extends the data set of the TSFS encryption algorithm to take special characters as well, and corrects substitution and shifting processes by providing more than one modulo factor and four 16-arrays respectively in order to avoid the error that occurs in decryption steps. Experiment results show that enhanced TSFS encryption algorithm outperforms Data Encryption Standard algorithm (DES) and Advanced Encryption Standard algorithm (AES) in terms of query execution time and database added size. This algorithm will be support special characters and provide high security. If data will be secure than nobody can hack data.

Keywords: Security, Transposition, Substitution, Folding, Shifting