Pors: proofs of retrievability for large files

Authors: Ari Juels, Burton S. Kaliski Jr. - ACM SIGSAC Conference on Computer and Communications Security, CCS 2007 cited by 1,881

In this paper, we define and explore proofs of retrievability (PORs). A POR scheme enables an archive or back-up service (prover) to produce a concise proof that a user (verifier) can retrieve a target file F, that is, that the archive retains and reliably transmits file data sufficient for the user to recover F in its entirety.