The IESG has approved the following document: - 'RPKI Repository Delta Protocol (RRDP)' (draft-ietf-sidr-delta-protocol-08.txt) as Proposed Standard This document is the product of the Secure Inter-Domain Routing Working Group. The IESG contact persons are Alvaro Retana, Alia Atlas and Deborah Brungard. A URL of this Internet Draft is: https://datatracker.ietf.org/doc/draft-ietf-sidr-delta-protocol/ Technical Summary 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 protocol which provides relying parties with a mechanism to query a repository for incremental updates using the HTTP Over TLS (HTTPS) [RFC2818] protocol, thus enabling the RP to keep its state in sync with the repository using a secure transport channel. This document updates [RFC6480], [RFC6481], and [RFC7730]. Working Group Summary The WG process was as most SIDR process goes... long, but generally good in the end. Document Quality There are 2 different protocol implementations to date. One from RipeLabs, one from Dragon Research Group. Personnel Shepherd: morrowc@ops-netman.net - Chris Morrow AD: Alvaro Retana - aretana@cisco.com