A PROOF OF SECURITY FOR A KEY-POLICY RS-ABE SCHEME
Federico Giacon, Riccardo Aragona, Massimiliano Sala · JP Journal of Algebra Number Theory and Applications · 2018
A revocable-storage attribute-based encryption (RS-ABE) scheme is an encryption scheme which extends attribute-based encryption by intro- ducing user revocation. A key-policy RS-ABE scheme links each key to an access structure. We propose a new key-policy RS-ABE scheme whose security we prove in term of indistinguishability under a chosen-plaintext attack (IND-CPA).