Abstract
-
In this paper, we propose a new notion called k-times
attribute-based anonymous access control, which is particularly
designed for supporting cloud computing environment. In this
new notion, a user can authenticate himself/herself to the cloud
computing server anonymously. The server only knows the user
acquires some required attributes, yet it does not know the
identity of this user. In addition, we provide a k-times limit
for anonymous access control. That is, the server may limit a
particular set of users (i.e., those users with the same set of
attribute) to access the system for a maximum k-times within a
period or an event. Further additional access will be denied. We
also prove the security of our instantiation. Our implementation
result shows that our scheme is practical.