Modified Two Factor Authentication Control for Web based Cloud Computing Services

Abstract

Cloud computing web services are the most current and improving technology. In this paper we have two-factor
authentication access control system for cloud computing services based on web. In our proposed two factor authentication
control system, an attribute-based access control mechanism is implemented with the necessity of a user secret key and an
OTP (One Time Password). A user can access the system only if they hold the two factors as mentioned above, this
solution can improve the security of the system specifically in times of problem where many users share the same computer
for web-based cloud services. Because we are using attribute-based authentication control which is one of our important
factor in the system that enables the cloud server to restrict the access to those users with the same set of attributes while
preserving user privacy. We use the most improvised algorithm which is a combination of ABE (Attribute Based
Encryption) and ABC (Attribute Based Credentials) called ABKE (Attribute Based Key Exchange) which is provided by a
certificate authority. We test our system and see the practicability of our proposed three factor authentication system.