RPKI Repository Delta Protocol

In the Resource Public Key Infrastructure (RPKI), certificate authorities publish certificates, including end entity certificates, Certificate Revocation Lists (CRL), and RPKI signed objects to repositories. Relying Parties (RP) retrieve the published information from those repositories. This document specifies a delta protocol which provides relying parties with a mechanism to query a repository for incremental updates, thus enabling the RP to keep its state in sync with the repository.