Implementation of MA-ABE for Better Data Security in Cloud
Nallamalli Ramesh, Gorantla Praveen, Rajasekhara Rao Kurra · 2012
The more sensitive data is shared and stored by the third party references on the Internet, the need of encrypting data stored at these sites. The one drawback of encrypting data, is that it can be selectively shared at a coarse-grained level (i.e; issuing another party our private key), Here we develop a new cryptosystem concept for fine grained sharing of encrypted data that we call multi authority attribute based encryption MA-ABE. The scheme proposed allows any polynomial number of independent authorities to monitor attributes and distribute secret keys. The encryption choose, each authority, a number dk and a set of attributes, can encrypt a message such that a user can only decrypt if he had at least dk of the given attributes from each authority of k. The scheme proposed can tolerate an arbitrary member of corrupt authorities. Here, the focus is done and showed how to apply the techniques to achieve a multi-authority version of the small system.