An improved cryptographic technique using homomorphic transform

The current time has seen a major boom in the digitalization of information over various platforms varying from the web, applications, internet, and portals. The digitalization of the banking domain, telemedicine, cryptocurrency, and social media has put personal information at high risk. The data of anyone can be retrieved by many methods, such as brute force and cryptographic analysis can be used to retrieve the message and key. This has led to the need for data security, requiring the information more and more secure with the improvised form of existing technology so such kinds of attacks can be avoided. In this work, an efficient cryptographic approach is proposed which can protect the text message. Results show that for various file sizes ranging from 2.5 MB to 23.3 MB the proposed approach gives a minimum of 54% improvement compared to AES. The execution time of the proposed algorithm is better than available algorithms like DES, 3DES, AES, Blowfish, and RSA, below 1 MB data size. The limitation is felt when the data size is beyond 1 MB data size as the algorithm takes a longer execution time.