Increasing the security of e-commerce systems using some models of combined cryptography

Abstract

Secure communications are an important precondition of e-commerce transactions and are required for 
confidential electronic communications. Every e-commerce system relies on encryption to secure data 
transmission by controlling data access and protect information on the internet and ultimately boost consumer 
confidence. By implementing encryption, integrity is maintained while digital authentication is enforced, thus 
allowing both customers and merchants to verify the identity of the other party, a concept fundamental to secure 
online credit card transactions. In this paper we will explain the basic concepts of encryption and the needs and 
opportunities of using several cryptographic systems. Next, we will present some of the most recent algorithms 
which are supporting and enabling these confidential electronic communications. At the same time we will 
compare and evaluate individual algorithms by taking into consideration the security aspect and their complexity.