Implementation of Ciphertext Policy-Attribute Based Encryption (CP-ABE) for fine grained access control of university data

Ciphertext Policy-Attribute Based Encryption (CP-ABE) is an emerging encryption technology to address challenges of secure data sharing. In this paper, a CP-ABE based scheme has been implemented for fine grained access control of documents in a typical university setup. The documents are encrypted with an embedded access structure and can be decrypted by only those users whose attribute values satisfy the access structure defined for the document. Experimental simulations demonstrate the capability of proposed solution in providing real time encryption/ decryption services on varying number of attributes, file sizes and types.