Enhanced Security definition
Enhanced Security is a process for providing additional security, beyond what is offered by the Provider, that the trading partners may agree to use.
Enhanced Security. We show that our modifications enhance the security (resist against DoS attack) while achieving the design objectives (identification, authentication, key agreement and user anonymity). If equations (1) through (10) in Yang’s protocol are secure, achieve user identification, authentication, key agreement and preserve user anonymity so do equations (11), (12) and (15) through (22) in our proposed SIKA protocol. It now suffices to prove that equations (13) and (14) resist DoS attacks and do not introduce any new vulnerability. Note that equations (13) and (14) protect and verify the integrity of the transmitted message M2, respectively.