A comprehensive secure email transfer model
Geethapriya Liyanage, Shantha Fernando · 2017
Simple Mail Transfer Protocol has been used since 1980 to send and receive Emails. Initially, this protocol did not have security controls implemented as it was not a need at that time. Therefore, the first version had many weaknesses. To address those weaknesses, many solutions have been proposed. However, there are still security weaknesses in it. The main weakness in the protocol is that it does not address security considerations like Confidentiality, Integrity, Authentication and Authorization. To bring in those security considerations into message transfer, we have proposed a new Email transfer model. That model has a central server to authenticate and authorize Email traffic between Email servers. Moreover, this model provides confidentiality and integrity to email messages with the help of encryption.