Hybrid symmetric cryptography approach for secure communication in web application

Abstract

Cryptography is a science that studies methods so that data or messages remain safe when sent, from the sender to the recipient without experiencing interference from unauthorized parties. The cryptographic system used is a combination of symmetrical cryptographic algorithms, and asymmetric cryptographic algorithms also called hybrid cryptosystems. This research work tries to explore the need of integration of different encryption algorithms and enhance the strength of encryption and complexity. This work observes that integrity check algorithm can also be used to generate key of asymmetric key cryptography and they can help to enhance power of confidentiality. In this paper, we present a new hybrid by using Blowfish, RC6 and RSA algorithms. Within this, the data is encrypted through symmetric algorithm using RC6 and blowfish algorithm and key is encrypted using an asymmetric algorithm called RSA. The complete solution was implemented using Java technology and it was evaluated based on computation time.

Subject Classification:

• 68P25 (Data Encryption)

Keywords:

• Cryptography
• Hybrid cryptography
• RSA
• RC6
• SHA-1