A Symmetric Key Based Deduplicatable Proof of Storage for Encrypted Data in Cloud Storage Environments

Algorithm 4

Ownership check protocol.

: , (, , , )

: “accept” or “reject”

(1) : for in

(2)

(3)

(4)

(5)

(6) send , to as a challenge

(7) : compute

(8)

(9) send to as a response

(10) : if

(11) return “accept”

(12) otherwise

(13) return “reject”