



SIDROPS                                                      J. Snijders
Internet-Draft                                                       BSD
Intended status: Standards Track                               B. Bakker
Expires: 16 October 2026                                  T. Bruijnzeels
                                                                RIPE NCC
                                                              T. Buehler
                                                                 OpenBSD
                                                           14 April 2026


A Profile for Resource Public Key Infrastructure (RPKI) Canonical Cache
                          Representation (CCR)
                     draft-ietf-sidrops-rpki-ccr-03

Abstract

   This document specifies a Canonical Cache Representation (CCR)
   content type for use with the Resource Public Key Infrastructure
   (RPKI).  CCR is a DER-encoded data interchange format which can be
   used to represent various aspects of the state of a validated cache
   at a particular point in time.  The CCR profile is a compact and
   versatile format well-suited for a diverse set of applications such
   as audit trail keeping, validated payload dissemination, and
   analytics pipelines.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on 16 October 2026.

Copyright Notice

   Copyright (c) 2026 IETF Trust and the persons identified as the
   document authors.  All rights reserved.





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   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents (https://trustee.ietf.org/
   license-info) in effect on the date of publication of this document.
   Please review these documents carefully, as they describe your rights
   and restrictions with respect to this document.  Code Components
   extracted from this document must include Revised BSD License text as
   described in Section 4.e of the Trust Legal Provisions and are
   provided without warranty as described in the Revised BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Requirements Language . . . . . . . . . . . . . . . . . .   3
   2.  The Canonical Cache Representation content type . . . . . . .   3
   3.  The Canonical Cache Representation content  . . . . . . . . .   3
     3.1.  version . . . . . . . . . . . . . . . . . . . . . . . . .   6
     3.2.  hashAlg . . . . . . . . . . . . . . . . . . . . . . . . .   6
     3.3.  producedAt  . . . . . . . . . . . . . . . . . . . . . . .   6
     3.4.  State aspect fields . . . . . . . . . . . . . . . . . . .   6
       3.4.1.  ManifestState . . . . . . . . . . . . . . . . . . . .   7
       3.4.2.  ROAPayloadState . . . . . . . . . . . . . . . . . . .   8
       3.4.3.  ASPAPayloadState  . . . . . . . . . . . . . . . . . .   8
       3.4.4.  TrustAnchorState  . . . . . . . . . . . . . . . . . .   9
       3.4.5.  RouterKeyState  . . . . . . . . . . . . . . . . . . .   9
   4.  Operational Considerations  . . . . . . . . . . . . . . . . .   9
     4.1.  Verifying CCR file integrity  . . . . . . . . . . . . . .   9
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .  10
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  10
     6.1.  SMI Security for S/MIME CMS Content Type
           (1.2.840.113549.1.9.16.1) . . . . . . . . . . . . . . . .  10
     6.2.  RPKI Repository Name Schemes  . . . . . . . . . . . . . .  10
     6.3.  SMI Security for S/MIME Module Identifier
           (1.2.840.113549.1.9.16.0) . . . . . . . . . . . . . . . .  10
     6.4.  Media Types . . . . . . . . . . . . . . . . . . . . . . .  11
       6.4.1.  Canonical Cache Representation Media Type . . . . . .  11
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  12
     7.1.  Normative References  . . . . . . . . . . . . . . . . . .  12
     7.2.  Informative References  . . . . . . . . . . . . . . . . .  13
   Appendix A.  Acknowledgements . . . . . . . . . . . . . . . . . .  14
   Appendix B.  Example CCR  . . . . . . . . . . . . . . . . . . . .  14
   Appendix C.  Implementation status  . . . . . . . . . . . . . . .  19
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  19









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1.  Introduction

   This document specifies a Canonical Cache Representation (CCR)
   content type for use with the Resource Public Key Infrastructure
   (RPKI).  A validated cache contains all RPKI objects that the Relying
   Party (RP) has verified to be valid according to the rules for
   validation (see [RFC6487], [RFC6488], [RFC9286]).  CCR is a data
   interchange format using Distinguished Encoding Rules (DER, [X.690])
   which can be used to represent various aspects of the state of a
   validated cache at a particular point in time.  The CCR profile is a
   compact and versatile format well-suited for a diverse set of
   applications such as audit record keeping, validated payload
   dissemination, and analytics pipelines.

   The format was primarily designed to support comparative analysis of
   uniformities and differences among multiple RP instances using
   different RPKI transport protocols (such as [RFC5781], [RFC8182], and
   [I-D.ietf-sidrops-rpki-erik-protocol]).

1.1.  Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
   "OPTIONAL" in this document are to be interpreted as described in
   BCP 14 [RFC2119] [RFC8174] when, and only when, they appear in all
   capitals, as shown here.

2.  The Canonical Cache Representation content type

   The content of a CCR file is an instance of ContentInfo.

   The contentType for a CCR is defined as id-ct-
   rpkiCanonicalCacheRepresentation, with Object Identifier (OID)
   1.2.840.113549.1.9.16.1.54.

   The content field contains an instance of
   RpkiCanonicalCacheRepresentation.

3.  The Canonical Cache Representation content

   The content of a Canonical Cache Representation is formally defined
   as follows:









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   RpkiCanonicalCacheRepresentation-2025
     { iso(1) member-body(2) us(840) rsadsi(113549)
       pkcs(1) pkcs9(9) smime(16) mod(0) id-mod-rpkiCCR-2025(TBD) }

   DEFINITIONS EXPLICIT TAGS ::=
   BEGIN

   IMPORTS
     CONTENT-TYPE, Digest, DigestAlgorithmIdentifier,
       SubjectKeyIdentifier
     FROM CryptographicMessageSyntax-2010 -- in [RFC6268]
       { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1)
         pkcs-9(9) smime(16) modules(0) id-mod-cms-2009(58) }

     ASID, ROAIPAddressFamily
     FROM RPKI-ROA-2023 -- in [RFC9582]
       { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1)
         pkcs9(9) smime(16) mod(0) id-mod-rpkiROA-2023(75) }

     CertificateSerialNumber, SubjectPublicKeyInfo
     FROM PKIX1Explicit-2009
       { iso(1) identified-organization(3) dod(6) internet(1)
         security(5) mechanisms(5) pkix(7) id-mod(0)
         id-mod-pkix1-explicit-02(51) }

     AccessDescription, KeyIdentifier
     FROM PKIX1Implicit-2009
       { iso(1) identified-organization(3) dod(6) internet(1)
         security(5) mechanisms(5) pkix(7) id-mod(0)
         id-mod-pkix1-implicit-02(59) }
     ;

   ContentInfo ::= SEQUENCE {
     contentType      CONTENT-TYPE.&id({ContentSet}),
     content      [0] EXPLICIT
                      CONTENT-TYPE.&Type({ContentSet}{@contentType}) }

   ContentSet CONTENT-TYPE ::= {
     ct-rpkiCanonicalCacheRepresentation, ... }

   ct-rpkiCanonicalCacheRepresentation CONTENT-TYPE ::=
     { TYPE RpkiCanonicalCacheRepresentation
       IDENTIFIED BY id-ct-rpkiCanonicalCacheRepresentation }

   id-ct-rpkiCanonicalCacheRepresentation OBJECT IDENTIFIER ::=
     { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1)
       pkcs-9(9) id-smime(16) id-ct(1) ccr(54) }




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   RpkiCanonicalCacheRepresentation ::= SEQUENCE {
     version     [0] INTEGER DEFAULT 0,
     hashAlg         DigestAlgorithmIdentifier,
     producedAt      GeneralizedTime,
     mfts        [1] ManifestState OPTIONAL,
     vrps        [2] ROAPayloadState OPTIONAL,
     vaps        [3] ASPAPayloadState OPTIONAL,
     tas         [4] TrustAnchorState OPTIONAL,
     rks         [5] RouterKeyState OPTIONAL,
     ... }
     -- at least one of mfts, vrps, vaps, tas, or rks MUST be present
     ( WITH COMPONENTS { ..., mfts PRESENT } |
       WITH COMPONENTS { ..., vrps PRESENT } |
       WITH COMPONENTS { ..., vaps PRESENT } |
       WITH COMPONENTS { ..., tas PRESENT } |
       WITH COMPONENTS { ..., rks PRESENT } )

   ManifestState ::= SEQUENCE {
     mis               SEQUENCE OF ManifestInstance,
     mostRecentUpdate  GeneralizedTime,
     hash              Digest }

   ManifestInstance ::= SEQUENCE {
     hash              Digest,
     size              INTEGER (1000..MAX),
     aki               KeyIdentifier,
     manifestNumber    INTEGER (0..MAX),
     thisUpdate        GeneralizedTime,
     locations         SEQUENCE (SIZE(1..MAX)) OF AccessDescription,
     subordinates      SEQUENCE (SIZE(1..MAX)) OF SubjectKeyIdentifier
                         OPTIONAL }

   ROAPayloadState ::= SEQUENCE {
     rps               SEQUENCE OF ROAPayloadSet,
     hash              Digest }

   ROAPayloadSet ::= SEQUENCE {
     asID              ASID,
     ipAddrBlocks      SEQUENCE (SIZE(1..2)) OF ROAIPAddressFamily }

   ASPAPayloadState ::= SEQUENCE {
     aps               SEQUENCE OF ASPAPayloadSet,
     hash              Digest }

   ASPAPayloadSet ::= SEQUENCE {
     customerASID      ASID,
     providers         SEQUENCE (SIZE(1..MAX)) OF ASID }




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   TrustAnchorState ::= SEQUENCE {
     skis              SEQUENCE (SIZE(1..MAX)) OF SubjectKeyIdentifier,
     hash              Digest }

   RouterKeyState ::= SEQUENCE {
     rksets            SEQUENCE OF RouterKeySet,
     hash              Digest }

   RouterKeySet ::= SEQUENCE {
     asID              ASID,
     routerKeys        SEQUENCE (SIZE(1..MAX)) OF RouterKey }

   RouterKey ::= SEQUENCE {
     ski               SubjectKeyIdentifier,
     spki              SubjectPublicKeyInfo }

   END

3.1.  version

   The version field contains the format version for the
   RpkiCanonicalCacheRepresentation structure, in this version of the
   specification it MUST be 0.

3.2.  hashAlg

   The hashAlg field specifies the algorithm used to construct the
   message digests.  This profile uses SHA-256 [SHS], therefore the OID
   MUST be 2.16.840.1.101.3.4.2.1.

3.3.  producedAt

   The producedAt field contains a GeneralizedTime and indicates the
   moment in time the CCR was generated.

3.4.  State aspect fields

   Each CCR contains one or more fields representing particular aspects
   of the cache's state.  Implementers should note the ellipsis
   extension marker in the RpkiCanonicalCacheRepresentation ASN.1
   notation and anticipate future changes as new signed object types are
   standardized.

   Each state aspect generally consists of a sequence of details
   extracted from RPKI Objects of a specific type, along with a digest
   computed by hashing the aforementioned DER-encoded sequence,
   optionally including some metadata.




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3.4.1.  ManifestState

   An instance of ManifestState represents the set of valid, current
   Manifests ([RFC9286]) in the cache.  It contains three fields: mis,
   mostRecentUpdate, and hash.

3.4.1.1.  ManifestInstance

   The mis field contains a SEQUENCE of ManifestInstance.  There is one
   ManifestInstance for each current manifest.  A manifest is nominally
   current until the time specified in nextUpdate or until a manifest is
   issued with a greater manifestNumber, whichever comes first (see
   Section 4.2.1 of [RFC9286]).

   A ManifestInstance is a structure consisting of the following fields:

   hash  the hash of the represented DER-encoded manifest object

   size  the size of the represented DER-encoded manifest object

   aki  the manifest issuer's key identifier

   manifestNumber  the manifest number contained within the manifest's
      eContent field

   thisUpdate  the thisUpdate contained within the manifest's eContent
      field

   locations  a sequence of AccessDescription instances from the
      manifest's End-Entity certificate's Subject Information Access
      extension

   subordinates  a optional non-empty SEQUENCE of SubjectKeyIdentifier

   The subordinates field represents the keypairs associated with the
   set of non-revoked, non-expired, validly signed, certification
   authority (CA) resource certificates subordinate to the manifest
   issuer.  Each SubjectKeyIdentifier is the 160-bit SHA-1 hash of the
   value of the DER-encoded ASN.1 bit string of the resource
   certificate's Subject Public Key, as described in Section 4.8.2 of
   [RFC6487].  The sequence elements of the subordinates field MUST be
   sorted in ascending order by interpreting each SubjectKeyIdentifier
   value as an unsigned 160-bit integer and MUST be unique with respect
   to each other.







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   The sequence elements in the mis field MUST be sorted in ascending
   order by hash value contained in each instance of ManifestInstance
   and MUST be unique with respect to the other instances of
   ManifestInstance.

3.4.1.2.  mostRecentUpdate

   The mostRecentUpdate is a metadata field which contains the most
   recent thisUpdate amongst all current manifests represented by the
   ManifestInstance structures.  If the mis field contains an empty
   sequence, the mostRecentUpdate MUST be set to the POSIX Epoch
   ("19700101000000Z").

3.4.1.3.  hash

   The hash field contains a message digest computed using the mis value
   (encoded in DER format) as input message.

3.4.2.  ROAPayloadState

   An instance of ROAPayloadState contains a field named rps which
   represents the current set of Validated ROA Payloads (Section 2 of
   [RFC6811]) encoded as a SEQUENCE of ROAPayloadSet instances.

   The ROAPayloadSet structure is modeled after the
   RouteOriginAttestation (Section 4 of [RFC9582]).  The asID value in
   each instance of ROAPayloadSet MUST be unique with respect to other
   instances of ROAPayloadSet.  The contents of the ipAddrBlocks field
   MUST appear in canonical form and ordered as defined in Section 4.3.3
   of [RFC9582].

   The hash field contains a message digest computed using the rps value
   (encoded in DER format) as input message.

3.4.3.  ASPAPayloadState

   An instance of ASPAPayloadState contains an aps field which
   represents the current set of deduplicated and merged ASPA payloads
   ([I-D.ietf-sidrops-aspa-profile]) ordered by ascending customerASID
   value encoded as a SEQUENCE of ASPAPayloadSet instances.  The
   customerASID value in each instance of ASPAPayloadSet MUST be unique
   with respect to other instances of ASPAPayloadSet.

   The ASPAPayloadSet structure is modeled after the ProviderASSet
   (Section 3.3 of [I-D.ietf-sidrops-aspa-profile]).

   The hash field contains a message digest computed using the aps value
   (encoded in DER format) as input message.



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3.4.4.  TrustAnchorState

   An instance of TrustAnchorState represents the set of valid Trust
   Anchor (TA) Certification Authority (CA) resource certificates used
   by the relying party when producing the CCR.

   Each SubjectKeyIdentifier is the 160-bit SHA-1 hash of the value of
   the DER-encoded ASN.1 bit string of the TA's Subject Public Key, as
   described in Section 4.8.2 of [RFC6487].  The skis field contains a
   sequence of Subject Key Identifiers (SKI) sorted in ascending order
   by interpreting the SKI value as an unsigned 160-bit integer.

   The hash field contains a message digest computed using the skis
   value (encoded in DER format) as input message.

3.4.5.  RouterKeyState

   An instance of RouterKeyState contains an rksets field which
   represents the current set of valid BGPsec Router Keys [RFC8205]
   encoded as a SEQUENCE of RouterKeySet instances.  The asID value in
   each instance of RouterKeySet MUST be unique with respect to other
   instances of RouterKeySet.  Instances of RouterKeySet are sorted by
   ascending value of asID.  Instances of RouterKey are sorted by
   ascending value of ski by interpreting the SKI value as an unsigned
   160-bit integer.

   The hash field contains a message digest computed using the rks value
   (encoded in DER format) as input message.

4.  Operational Considerations

   Comparing the ManifestState mostRecentUpdate timestamp value with the
   producedAt timestamp might help offer insight into the timing and
   propagation delays of the RPKI supply chain.

   CCR content compresses very well due to the fairly repetitive nature
   of content in certain fields, consistent ordering, and the absence of
   public keys.  Readers and writers of CCR data are RECOMMENDED to
   support data compression using Gzip ([RFC1952]).

4.1.  Verifying CCR file integrity

   The integrity of a CCR object can be checked by confirming whether
   the hash values embedded inside state aspects match the computed hash
   value of the respective state aspect payload structure.






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5.  Security Considerations

   CCR objects are not signed objects.

6.  IANA Considerations

6.1.  SMI Security for S/MIME CMS Content Type (1.2.840.113549.1.9.16.1)

   IANA has allocated the following in the "SMI Security for S/MIME CMS
   Content Type (1.2.840.113549.1.9.16.1)" registry:

     +=========+==================================+==================+
     | Decimal | Description                      | References       |
     +=========+==================================+==================+
     | 54      | id-ct-                           | draft-ietf-      |
     |         | rpkiCanonicalCacheRepresentation | sidrops-rpki-ccr |
     +---------+----------------------------------+------------------+

                                  Table 1

6.2.  RPKI Repository Name Schemes

   IANA is requested to add the Canonical Cache Representation file
   extension to the "RPKI Repository Name Schemes" registry [RFC6481] as
   follows:

       +===========+=================+=============================+
       | Filename  | RPKI Object     | Reference                   |
       | Extension |                 |                             |
       +===========+=================+=============================+
       | .ccr      | Canonical Cache | draft-ietf-sidrops-rpki-ccr |
       |           | Representation  |                             |
       +-----------+-----------------+-----------------------------+

                                  Table 2

6.3.  SMI Security for S/MIME Module Identifier
      (1.2.840.113549.1.9.16.0)

   IANA is requested to allocate the following in the "SMI Security for
   S/MIME Module Identifier (1.2.840.113549.1.9.16.0)" registry:










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      +=========+=====================+=============================+
      | Decimal | Description         | References                  |
      +=========+=====================+=============================+
      | TBD     | id-mod-rpkiCCR-2025 | draft-ietf-sidrops-rpki-ccr |
      +---------+---------------------+-----------------------------+

                                  Table 3

6.4.  Media Types

   IANA is requested to register the media types "application/rpki-ccr"
   and "application/rpki-ccr+gz" in the "Media Types" registry as
   follows:

6.4.1.  Canonical Cache Representation Media Type

   Type name:  application
   Subtype name:  rpki-ccr
   Required parameters:  N/A
   Optional parameters:  N/A
   Encoding considerations:  binary
   Security considerations:  This media type contains no active content.
   Interoperability considerations:  N/A
   Published specification:  draft-ietf-sidrops-rpki-ccr
   Applications that use this media type:  RPKI operators
   Fragment identifier considerations:  N/A
   Additional information:
                            Content:  This media type is a RPKI
         Canonical Cache Representation object, as defined in draft-
         ietf-sidrops-rpki-ccr.
                            Magic number(s):  N/A
                            File extension(s):  .ccr
                            Macintosh file type code(s):  N/A
   Person & email address to contact for further information:  Job
      Snijders (job@bsd.nl)
   Intended usage:  COMMON
   Restrictions on usage:  N/A
   Author:  Job Snijders (job@bsd.nl)
   Change controller:  IETF


   Type name:  application
   Subtype name:  rpki-ccr+gz
   Content:  This media type is a Gzip compressed RPKI Canonical Cache
      Representation object, as defined in draft-ietf-sidrops-rpki-ccr.
   Magic number(s):  N/A
   File extension(s):  .ccr.gz
   References:  RFC1952, RFC6713



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   Encoding considerations:  gzip is a binary encoding

7.  References

7.1.  Normative References

   [I-D.ietf-sidrops-aspa-profile]
              Snijders, J., Azimov, A., Uskov, E., Bush, R., Housley,
              R., and B. Maddison, "A Profile for Autonomous System
              Provider Authorization", Work in Progress, Internet-Draft,
              draft-ietf-sidrops-aspa-profile-24, 31 March 2026,
              <https://datatracker.ietf.org/doc/html/draft-ietf-sidrops-
              aspa-profile-24>.

   [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate
              Requirement Levels", BCP 14, RFC 2119,
              DOI 10.17487/RFC2119, March 1997,
              <https://www.rfc-editor.org/info/rfc2119>.

   [RFC6481]  Huston, G., Loomans, R., and G. Michaelson, "A Profile for
              Resource Certificate Repository Structure", RFC 6481,
              DOI 10.17487/RFC6481, February 2012,
              <https://www.rfc-editor.org/info/rfc6481>.

   [RFC6487]  Huston, G., Michaelson, G., and R. Loomans, "A Profile for
              X.509 PKIX Resource Certificates", RFC 6487,
              DOI 10.17487/RFC6487, February 2012,
              <https://www.rfc-editor.org/info/rfc6487>.

   [RFC6488]  Lepinski, M., Chi, A., and S. Kent, "Signed Object
              Template for the Resource Public Key Infrastructure
              (RPKI)", RFC 6488, DOI 10.17487/RFC6488, February 2012,
              <https://www.rfc-editor.org/info/rfc6488>.

   [RFC6811]  Mohapatra, P., Scudder, J., Ward, D., Bush, R., and R.
              Austein, "BGP Prefix Origin Validation", RFC 6811,
              DOI 10.17487/RFC6811, January 2013,
              <https://www.rfc-editor.org/info/rfc6811>.

   [RFC8174]  Leiba, B., "Ambiguity of Uppercase vs Lowercase in RFC
              2119 Key Words", BCP 14, RFC 8174, DOI 10.17487/RFC8174,
              May 2017, <https://www.rfc-editor.org/info/rfc8174>.

   [RFC9286]  Austein, R., Huston, G., Kent, S., and M. Lepinski,
              "Manifests for the Resource Public Key Infrastructure
              (RPKI)", RFC 9286, DOI 10.17487/RFC9286, June 2022,
              <https://www.rfc-editor.org/info/rfc9286>.




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   [RFC9582]  Snijders, J., Maddison, B., Lepinski, M., Kong, D., and S.
              Kent, "A Profile for Route Origin Authorizations (ROAs)",
              RFC 9582, DOI 10.17487/RFC9582, May 2024,
              <https://www.rfc-editor.org/info/rfc9582>.

   [SHS]      National Institute of Standards and Technology, "Secure
              Hash Standard", March 2012,
              <https://csrc.nist.gov/publications/fips/fips180-4/fips-
              180-4.pdf>.

   [X.690]    ITU-T, "Information technology - ASN.1 encoding rules:
              Specification of Basic Encoding Rules (BER), Canonical
              Encoding Rules (CER) and Distinguished Encoding Rules
              (DER)", ITU-T Recommendation X.690, ISO/IEC 8825-1:2021,
              February 2021,
              <https://www.itu.int/rec/T-REC-X.690-202102-I/en>.

7.2.  Informative References

   [I-D.ietf-sidrops-rpki-erik-protocol]
              Snijders, J., Bruijnzeels, T., Harrison, T., and W. Ohgai,
              "The Erik Synchronization Protocol for use with the
              Resource Public Key Infrastructure (RPKI)", Work in
              Progress, Internet-Draft, draft-ietf-sidrops-rpki-erik-
              protocol-04, 17 March 2026,
              <https://datatracker.ietf.org/doc/html/draft-ietf-sidrops-
              rpki-erik-protocol-04>.

   [RFC1952]  Deutsch, P., "GZIP file format specification version 4.3",
              RFC 1952, DOI 10.17487/RFC1952, May 1996,
              <https://www.rfc-editor.org/info/rfc1952>.

   [RFC5781]  Weiler, S., Ward, D., and R. Housley, "The rsync URI
              Scheme", RFC 5781, DOI 10.17487/RFC5781, February 2010,
              <https://www.rfc-editor.org/info/rfc5781>.

   [RFC8182]  Bruijnzeels, T., Muravskiy, O., Weber, B., and R. Austein,
              "The RPKI Repository Delta Protocol (RRDP)", RFC 8182,
              DOI 10.17487/RFC8182, July 2017,
              <https://www.rfc-editor.org/info/rfc8182>.

   [RFC8205]  Lepinski, M., Ed. and K. Sriram, Ed., "BGPsec Protocol
              Specification", RFC 8205, DOI 10.17487/RFC8205, September
              2017, <https://www.rfc-editor.org/info/rfc8205>.







Snijders, et al.         Expires 16 October 2026               [Page 13]

Internet-Draft     RPKI Canonical Cache Representation        April 2026


   [rpki-client]
              Jeker, C., Dzonsons, K., Buehler, T., and J. Snijders,
              "rpki-client", December 2025,
              <https://www.rpki-client.org/>.

   [rpki-commons]
              NCC, R., "rpki-commons", April 2026,
              <https://github.com/RIPE-NCC/rpki-commons>.

   [rpkitouch]
              Snijders, J., "rpki-client", December 2025,
              <https://www.github.com/job/rpkitouch>.

Appendix A.  Acknowledgements

   The authors wish to thank Russ Housley and Luuk Hendriks for their
   generous feedback on this specification.

Appendix B.  Example CCR

   The below is a Base64-encoded example CCR object.  For a more
   elaborate example based on the global RPKI, see the URL in
   Appendix C.

   MIIP/wYLKoZIhvcNAQkQATaggg/uMIIP6jALBglghkgBZQMEAgEYDzIwMjYwNDExMDgwN
   DMxWqGCC9kwggvVMIILnjCB0QQgAAA2wRwPsxllQz3CGSuUSNg95LD7ve8TkQG8oJfZf/
   QCAgfOBBRGOHxWszH/hLwQ2KyQ4eLBbxcjRQICGLIYDzIwMjYwNDEwMjMwMTUxWjB+MHw
   GCCsGAQUFBzALhnByc3luYzovL3Jwa2kucmlwZS5uZXQvcmVwb3NpdG9yeS9ERUZBVUxU
   LzQ4LzFiNDBmZi1iMWUxLTQ5NTEtOTE2NS0yM2JiMzlhODM0ODEvMS9Samg4VnJNeF80U
   zhFTmlza09IaXdXOFhJMFUubWZ0MIIBOwQgAAFxGHgJjLarAoLN6aV4ByTazpqHNrQ4xD
   jc5eXRQrYCAgk4BBTA1zPgXUwFbjp+lDMtxGvoAUhoigIUAQ0Mn0MoWEPsKztq6RnIjIf
   zkgAYDzIwMjYwNDEwMjIwMDAzWjCB1TCB0gYIKwYBBQUHMAuGgcVyc3luYzovL3Jwa2ku
   YXJpbi5uZXQvcmVwb3NpdG9yeS9hcmluLXJwa2ktdGEvNWU0YTIzZWEtZTgwYS00MDNlL
   WIwOGMtMjE3MWRhMjE1N2QzLzg3MWRhNDBmLTc5M2EtNGE0NS1hMGE5LTk3ODE0ODMyMW
   EwNy9hMTIwYjVkNC1kYTU2LTQ5YjEtOGFlMS03OTg3YTZhZmRlOTkvYTEyMGI1ZDQtZGE
   1Ni00OWIxLThhZTEtNzk4N2E2YWZkZTk5Lm1mdDCCATsEIAAFujQiTYR4XP+wPQa3rvHa
   Z9sVxQu9TikQPbvcSrGUAgIJOAQUrhIoBf2wm/Wx39wUmFrEDwf0PoUCFAENDJ9DKFhLn
   OZ6Otp9FmCbky+PGA8yMDI2MDQxMTAzMDAwM1owgdUwgdIGCCsGAQUFBzALhoHFcnN5bm
   M6Ly9ycGtpLmFyaW4ubmV0L3JlcG9zaXRvcnkvYXJpbi1ycGtpLXRhLzVlNGEyM2VhLWU
   4MGEtNDAzZS1iMDhjLTIxNzFkYTIxNTdkMy84NWUwNmVhZi0zN2E3LTQ1ODgtYWJlYS1l
   NDkwOWVmMWI0ZTIvYjJjNThiYTktMzM5My00ZjRjLWFiZTEtYjIzMWEzZWEyNzAwL2IyY
   zU4YmE5LTMzOTMtNGY0Yy1hYmUxLWIyMzFhM2VhMjcwMC5tZnQwgdEEIAAGt84u5ZglXr
   x63YwuEZbT7Vu8lb+MPP+inyrftREGAgIHzgQUFrGYtu469o3rwjR6Xpj3Efsw8osCAgW
   2GA8yMDI2MDQxMTAzMDIxM1owfjB8BggrBgEFBQcwC4ZwcnN5bmM6Ly9ycGtpLnJpcGUu
   bmV0L3JlcG9zaXRvcnkvREVGQVVMVC8zYS8yMmFlMTQtZTQ1ZS00ZWVlLWJkMDctNDQ4M
   mFkYTIzMmUzLzEvRnJHWXR1NDY5bzNyd2pSNlhwajNFZnN3OG9zLm1mdDCCATsEIAAHY6
   f9bYuKrhs+7nHfxGf4NvKaoK3bCDdhaB7CPzv7AgIJiwQUAnJUlPp8gUJ+xZ8HE/O5sGj
   ryMICFAENDJ9DKFhCdi5c30h0SNvj1lMGGA8yMDI2MDQxMDIzMDAwM1owgdUwgdIGCCsG



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Internet-Draft     RPKI Canonical Cache Representation        April 2026


   AQUFBzALhoHFcnN5bmM6Ly9ycGtpLmFyaW4ubmV0L3JlcG9zaXRvcnkvYXJpbi1ycGtpL
   XRhLzVlNGEyM2VhLWU4MGEtNDAzZS1iMDhjLTIxNzFkYTIxNTdkMy81YjdmYjEyMi1kZm
   RmLTRjMGMtYjkwZC0zYmM3YTVmZWI4MmIvZmRjMzM2NWEtMThlYS00Njk2LWFkOGMtNmI
   2NmEzZTE1MmI3L2ZkYzMzNjVhLTE4ZWEtNDY5Ni1hZDhjLTZiNjZhM2UxNTJiNy5tZnQw
   gdEEIAAIAYHbABeU9ubNQzM6b+nZlZJPxfMnuoFMasNkPlFrAgIHhAQUONY8X84e8J5L8
   s/JS7JQn9X/UJwCAgbkGA8yMDI2MDQxMTA2MDExOVowfjB8BggrBgEFBQcwC4ZwcnN5bm
   M6Ly9ycGtpLnJpcGUubmV0L3JlcG9zaXRvcnkvREVGQVVMVC9iZi9lZTNkNzMtOTcyOS0
   0ZGE0LThiYzctNjdjNDQyZDZhODUwLzEvT05ZOFg4NGU4SjVMOHNfSlM3SlFuOVhfVUp3
   Lm1mdDCB0QQgAAgGTG8qcTnrJ+s3v2qwsYhicint7+AAzZvEBKS0/CgCAggYBBRz4Veyk
   Yytyopan7xm6Xdgim314QICGLsYDzIwMjYwNDExMDQwMDIwWjB+MHwGCCsGAQUFBzALhn
   Byc3luYzovL3Jwa2kucmlwZS5uZXQvcmVwb3NpdG9yeS9ERUZBVUxULzc5L2JiY2Q1My1
   jNGY4LTQyNDUtYmI5MC0wMGExNTRiOGVjYjEvMS9jLUZYc3BHTXJjcUtXcC04WnVsM1lJ
   cHQ5ZUUubWZ0MIIBOwQgAAxlL+UgVK9Dx4hdFmtC1Io4cnNXa+WSktfxHNDM2dQCAgk4B
   BSebvQFHAvG2whHV6ijen1ZKa7QMwIUAQ0Mn0MoWEfYv17xDpMYoOXHJXMYDzIwMjYwND
   EwMTgwMDAzWjCB1TCB0gYIKwYBBQUHMAuGgcVyc3luYzovL3Jwa2kuYXJpbi5uZXQvcmV
   wb3NpdG9yeS9hcmluLXJwa2ktdGEvNWU0YTIzZWEtZTgwYS00MDNlLWIwOGMtMjE3MWRh
   MjE1N2QzLzY5ZmQwMTU2LWJiMWYtNDhiNi1iZjMyLWM5NDkyMjg2ZjE5NS9hZmIzNTExY
   i1mMWI2LTQ0YWQtOWMzNi1mNjU3NmE1NDAwZGYvYWZiMzUxMWItZjFiNi00NGFkLTljMz
   YtZjY1NzZhNTQwMGRmLm1mdDCB0QQgABHMuie2PQZfMvLKOxKMHfjD1eaPqk9g7ApjxVq
   RekoCAgfOBBTad/oQDWzSiOVEx8tMfU0Yh5B57QICA0QYDzIwMjYwNDExMDAwMTAwWjB+
   MHwGCCsGAQUFBzALhnByc3luYzovL3Jwa2kucmlwZS5uZXQvcmVwb3NpdG9yeS9ERUZBV
   UxUL2RjL2UzMWFkNS1lZjc0LTQwYTQtOWEwZC1kZjg3MmZiMjY5Y2YvMS8ybmY2RUExcz
   BvamxSTWZMVEgxTkdJZVFlZTAubWZ0MIIBOwQgABRkjCfKzkq+VljmLDPOTrRzb9XCSHS
   4+MdJ85h48CkCAgk4BBROQoyVjC53vymSTEMHykx6r8ysjwIUAQ0Mn0MoWEV8jtR6N+Vu
   HCt5JiEYDzIwMjYwNDExMDgwMDAzWjCB1TCB0gYIKwYBBQUHMAuGgcVyc3luYzovL3Jwa
   2kuYXJpbi5uZXQvcmVwb3NpdG9yeS9hcmluLXJwa2ktdGEvNWU0YTIzZWEtZTgwYS00MD
   NlLWIwOGMtMjE3MWRhMjE1N2QzLzRhYjdhZTRkLWJkN2ItNGIzMy05YTg4LTViMjJkMmE
   4MzM3ZC8wMjJkMDI2OS03ZDU2LTQ1Y2MtODE2Ny1iMWU3YWIxM2YxZjQvMDIyZDAyNjkt
   N2Q1Ni00NWNjLTgxNjctYjFlN2FiMTNmMWY0Lm1mdDCCATsEIAAZpDK5Kgx6uUVKrKMks
   brMn/uM9zx0ScgmSrNPAeccAgII6AQU1rp+M1W1y/Z0A5I2TKkhN5JBwCcCFAENDJ9DKF
   hBD/Z3xJ0CPoX7w2cfGA8yMDI2MDQxMDE1MDAwM1owgdUwgdIGCCsGAQUFBzALhoHFcnN
   5bmM6Ly9ycGtpLmFyaW4ubmV0L3JlcG9zaXRvcnkvYXJpbi1ycGtpLXRhLzVlNGEyM2Vh
   LWU4MGEtNDAzZS1iMDhjLTIxNzFkYTIxNTdkMy8yYTI0Njk0Ny0yZDYyLTRhNmMtYmEwN
   S04NzE4N2YwMDk5YjIvMGE5NGI0NjAtNzQ0MS00OTVlLTkzNTgtNDc1ZWE3OTVlY2M2Lz
   BhOTRiNDYwLTc0NDEtNDk1ZS05MzU4LTQ3NWVhNzk1ZWNjNi5tZnQYDzIwMjYwNDExMDg
   wMDAzWgQg8bXskzbWa1oCoQYF1VnbQskxegvOO2eyS67YnkY29wiiggHeMIIB2jCCAbQw
   ZAIBBzBfMEgEAgABMEIwCQMEAMAjXgIBIDAJAwQAwEMrAgEgMAkDBADCIEUCASAwCQMEA
   cIg2gIBIDAJAwQAwiKKAgEgMAkDBAHCPVwCASAwEwQCAAIwDTALAwUDKgs7QAICAIAwgZ
   sCAiBbMIGUMHYEAgABMHAwBgMEAFvQIjAGAwQDXo7wMAYDBABejvAwBgMEAF6O8TAGAwQ
   AXo7yMAYDBABejvQwBgMEAF6O9TAGAwQAXo72MAYDBABejvcwBgMEArk04DAGAwQAuTTg
   MAYDBAC5NOEwBgMEALk04jAGAwQAuTTjMBoEAgACMBQwCQMHACABBngGiDAHAwUAKgIIm
   DCBrQICPMowgaYwVwQCAAEwUTAGAwQAQ931MAYDBACl/uEwCQMEAKX+/wIBIDAGAwQAwJ
   OoMAkDBAHGOgICARgwCQMEAcwCHgIBGDAGAwQA0RgBMAYDBADRGAUwBgMEANEYCTBLBAI
   AAjBFMAwDBwEgAQQYFE4CAUAwCQMHACABBnwgjDAJAwcAIAEHKBgIMAkDBwAmB/rgAkUw
   CQMHACoOskAAADAJAwcAKg6yQAEYBCDVgBpTRcCqvEdOUPi7RvmGw9gjloOw3NcNAwoUR
   IMRAqOBmTCBljByMA0CAVAwCAICDRwCAhk9MAkCAgCuMAMCAQAwDgICAQswCAICL2ECAj
   cXMB4CAgIpMBgCAgCuAgICLwICAqgCAgUTAgILYgICDPgwJgICAi8wIAICAK4CAgIBAgI
   CKQICBRMCAgy5AgINHAICUeUCAlNIBCDITE9K2lIl7SnJRAygGi8R4SNruWCIgolWRu/4



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Internet-Draft     RPKI Canonical Cache Representation        April 2026


   xhoJjaRSMFAwLAQUE9TyT5qfzZjbNvkwYxgIyI85dLwEFOhVKx/W0aT35ATG2OVoDR68F
   j/DBCCh5sjSpR+H93+2tYuqk5GZkBARAKhhAP7h+HKGR+agDKWCARkwggEVMIHwMIHtAg
   I8yjCB5jBxBBRdQlDi2B1ESNiinvzpHSn/B17J4jBZMBMGByqGSM49AgEGCCqGSM49AwE
   HA0IABIBXI0P4P/ywEHqwB9jKafhrnKAwBgW4SKg998DT7F8ZwBm/prWe10K1TvQ0OlJQ
   EobYoOfkHxCqU7RYIqn4gBUwcQQUvoibVdC3Nzl9dcSfSFuFj6mK0R8wWTATBgcqhkjOP
   QIBBggqhkjOPQMBBwNCAATgXEmvSfZu7HW5fUS+X5BbBli8hp0+Mu4VfabGoq4AZSEqev
   tUssOCsT76X2nl4faRZM1UA3bYVRTd1v9EqkTbBCC6X7RJzvtroA82Enliou6m6Gf+hRK
   73a3pxuS4vBbB0g==

   It decodes as follows:

   =============== NOTE: '\' line wrapping per RFC 8792 ================

   File:                   example.ccr
   Hash identifier:        u8u0JbdDaij8cplt6kTaIyQFSzvgexIKuEsLhBzGhQI=
   CCR produced at:        Sat 11 Apr 2026 08:04:31 +0000
   Manifest state hash:    8bXskzbWa1oCoQYF1VnbQskxegvOO2eyS67YnkY29wg=
   Manifest last update:   Sat 11 Apr 2026 08:00:03 +0000
   Manifest instances:
                           hash:AAA2wRwPsxllQz3CGSuUSNg95LD7ve8TkQG8oJf\
   Zf/Q= size:1998 aki:46387C56B331FF84BC10D8AC90E1E2C16F172345 seqnum:\
   18B2 thisupdate:1775862111 sia:rsync://rpki.ripe.net/repository/DEFA\
   ULT/48/1b40ff-b1e1-4951-9165-23bb39a83481/1/Rjh8VrMx_4S8ENiskOHiwW8X\
   I0U.mft
                           hash:AAFxGHgJjLarAoLN6aV4ByTazpqHNrQ4xDjc5eX\
   RQrY= size:2360 aki:C0D733E05D4C056E3A7E94332DC46BE80148688A seqnum:\
   010D0C9F43285843EC2B3B6AE919C88C87F39200 thisupdate:1775858403 sia:r\
   sync://rpki.arin.net/repository/arin-rpki-ta/5e4a23ea-e80a-403e-b08c\
   -2171da2157d3/871da40f-793a-4a45-a0a9-978148321a07/a120b5d4-da56-49b\
   1-8ae1-7987a6afde99/a120b5d4-da56-49b1-8ae1-7987a6afde99.mft
                           hash:AAW6NCJNhHhc/7A9Breu8dpn2xXFC71OKRA9u9x\
   KsZQ= size:2360 aki:AE122805FDB09BF5B1DFDC14985AC40F07F43E85 seqnum:\
   010D0C9F4328584B9CE67A3ADA7D16609B932F8F thisupdate:1775876403 sia:r\
   sync://rpki.arin.net/repository/arin-rpki-ta/5e4a23ea-e80a-403e-b08c\
   -2171da2157d3/85e06eaf-37a7-4588-abea-e4909ef1b4e2/b2c58ba9-3393-4f4\
   c-abe1-b231a3ea2700/b2c58ba9-3393-4f4c-abe1-b231a3ea2700.mft
                           hash:AAa3zi7lmCVevHrdjC4RltPtW7yVv4w8/6KfKt+\
   1EQY= size:1998 aki:16B198B6EE3AF68DEBC2347A5E98F711FB30F28B seqnum:\
   05B6 thisupdate:1775876533 sia:rsync://rpki.ripe.net/repository/DEFA\
   ULT/3a/22ae14-e45e-4eee-bd07-4482ada232e3/1/FrGYtu469o3rwjR6Xpj3Efsw\
   8os.mft
                           hash:AAdjp/1ti4quGz7ucd/EZ/g28pqgrdsIN2FoHsI\
   /O/s= size:2443 aki:02725494FA7C81427EC59F0713F3B9B068EBC8C2 seqnum:\
   010D0C9F43285842762E5CDF487448DBE3D65306 thisupdate:1775862003 sia:r\
   sync://rpki.arin.net/repository/arin-rpki-ta/5e4a23ea-e80a-403e-b08c\
   -2171da2157d3/5b7fb122-dfdf-4c0c-b90d-3bc7a5feb82b/fdc3365a-18ea-469\
   6-ad8c-6b66a3e152b7/fdc3365a-18ea-4696-ad8c-6b66a3e152b7.mft
                           hash:AAgBgdsAF5T25s1DMzpv6dmVkk/F8ye6gUxqw2Q\



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Internet-Draft     RPKI Canonical Cache Representation        April 2026


   +UWs= size:1924 aki:38D63C5FCE1EF09E4BF2CFC94BB2509FD5FF509C seqnum:\
   06E4 thisupdate:1775887279 sia:rsync://rpki.ripe.net/repository/DEFA\
   ULT/bf/ee3d73-9729-4da4-8bc7-67c442d6a850/1/ONY8X84e8J5L8s_JS7JQn9X_\
   UJw.mft
                           hash:AAgGTG8qcTnrJ+s3v2qwsYhicint7+AAzZvEBKS\
   0/Cg= size:2072 aki:73E157B2918CADCA8A5A9FBC66E977608A6DF5E1 seqnum:\
   18BB thisupdate:1775880020 sia:rsync://rpki.ripe.net/repository/DEFA\
   ULT/79/bbcd53-c4f8-4245-bb90-00a154b8ecb1/1/c-FXspGMrcqKWp-8Zul3YIpt\
   9eE.mft
                           hash:AAxlL+UgVK9Dx4hdFmtC1Io4cnNXa+WSktfxHND\
   M2dQ= size:2360 aki:9E6EF4051C0BC6DB084757A8A37A7D5929AED033 seqnum:\
   010D0C9F43285847D8BF5EF10E9318A0E5C72573 thisupdate:1775844003 sia:r\
   sync://rpki.arin.net/repository/arin-rpki-ta/5e4a23ea-e80a-403e-b08c\
   -2171da2157d3/69fd0156-bb1f-48b6-bf32-c9492286f195/afb3511b-f1b6-44a\
   d-9c36-f6576a5400df/afb3511b-f1b6-44ad-9c36-f6576a5400df.mft
                           hash:ABHMuie2PQZfMvLKOxKMHfjD1eaPqk9g7ApjxVq\
   Reko= size:1998 aki:DA77FA100D6CD288E544C7CB4C7D4D18879079ED seqnum:\
   0344 thisupdate:1775865660 sia:rsync://rpki.ripe.net/repository/DEFA\
   ULT/dc/e31ad5-ef74-40a4-9a0d-df872fb269cf/1/2nf6EA1s0ojlRMfLTH1NGIeQ\
   ee0.mft
                           hash:ABRkjCfKzkq+VljmLDPOTrRzb9XCSHS4+MdJ85h\
   48Ck= size:2360 aki:4E428C958C2E77BF29924C4307CA4C7AAFCCAC8F seqnum:\
   010D0C9F432858457C8ED47A37E56E1C2B792621 thisupdate:1775894403 sia:r\
   sync://rpki.arin.net/repository/arin-rpki-ta/5e4a23ea-e80a-403e-b08c\
   -2171da2157d3/4ab7ae4d-bd7b-4b33-9a88-5b22d2a8337d/022d0269-7d56-45c\
   c-8167-b1e7ab13f1f4/022d0269-7d56-45cc-8167-b1e7ab13f1f4.mft
                           hash:ABmkMrkqDHq5RUqsoySxusyf+4z3PHRJyCZKs08\
   B5xw= size:2280 aki:D6BA7E3355B5CBF6740392364CA921379241C027 seqnum:\
   010D0C9F432858410FF677C49D023E85FBC3671F thisupdate:1775833203 sia:r\
   sync://rpki.arin.net/repository/arin-rpki-ta/5e4a23ea-e80a-403e-b08c\
   -2171da2157d3/2a246947-2d62-4a6c-ba05-87187f0099b2/0a94b460-7441-495\
   e-9358-475ea795ecc6/0a94b460-7441-495e-9358-475ea795ecc6.mft
   ROA payload state hash: 1YAaU0XAqrxHTlD4u0b5hsPYI5aDsNzXDQMKFESDEQI=
   ROA payload entries:
                           192.35.94.0/24-32 AS 7
                           192.67.43.0/24-32 AS 7
                           194.32.69.0/24-32 AS 7
                           194.32.218.0/23-32 AS 7
                           194.34.138.0/24-32 AS 7
                           194.61.92.0/23-32 AS 7
                           2a0b:3b40::/29-128 AS 7
                           91.208.34.0/24 AS 8283
                           94.142.240.0/21 AS 8283
                           94.142.240.0/24 AS 8283
                           94.142.241.0/24 AS 8283
                           94.142.242.0/24 AS 8283
                           94.142.244.0/24 AS 8283
                           94.142.245.0/24 AS 8283



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Internet-Draft     RPKI Canonical Cache Representation        April 2026


                           94.142.246.0/24 AS 8283
                           94.142.247.0/24 AS 8283
                           185.52.224.0/22 AS 8283
                           185.52.224.0/24 AS 8283
                           185.52.225.0/24 AS 8283
                           185.52.226.0/24 AS 8283
                           185.52.227.0/24 AS 8283
                           2001:678:688::/48 AS 8283
                           2a02:898::/32 AS 8283
                           67.221.245.0/24 AS 15562
                           165.254.225.0/24 AS 15562
                           165.254.255.0/24-32 AS 15562
                           192.147.168.0/24 AS 15562
                           198.58.2.0/23-24 AS 15562
                           204.2.30.0/23-24 AS 15562
                           209.24.1.0/24 AS 15562
                           209.24.5.0/24 AS 15562
                           209.24.9.0/24 AS 15562
                           2001:418:144e::/47-64 AS 15562
                           2001:67c:208c::/48 AS 15562
                           2001:728:1808::/48 AS 15562
                           2607:fae0:245::/48 AS 15562
                           2a0e:b240::/48 AS 15562
                           2a0e:b240:118::/48 AS 15562
   ASPA payload state hash:yExPStpSJe0pyUQMoBovEeEja7lgiIKJVkbv+MYaCY0=
   ASPA payload entries:
                           customer: 80 providers: 3356, 6461
                           customer: 174 providers: 0
                           customer: 267 providers: 12129, 14103
                           customer: 553 providers: 174, 559, 680, 1299\
   , 2914, 3320
                           customer: 559 providers: 174, 513, 553, 1299\
   , 3257, 3356, 20965, 21320
   Trust anchor state hash:oebI0qUfh/d/trWLqpORmZAQEQCoYQD+4fhyhkfmoAw=
   Trust anchor keyids:    13D4F24F9A9FCD98DB36F930631808C88F3974BC, E8\
   552B1FD6D1A4F7E404C6D8E5680D1EBC163FC3
   Router key state hash:  ul+0Sc77a6APNhJ5YqLupuhn/oUSu92t6cbkuLwWwdI=
   Router keys:
                           asid:15562 ski:5D4250E2D81D4448D8A29EFCE91D2\
   9FF075EC9E2 pubkey:MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEgFcjQ/g//LAQe\
   rAH2Mpp+GucoDAGBbhIqD33wNPsXxnAGb+mtZ7XQrVO9DQ6UlAShtig5+QfEKpTtFgiq\
   fiAFQ==
                           asid:15562 ski:BE889B55D0B737397D75C49F485B8\
   58FA98AD11F pubkey:MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAE4FxJr0n2bux1u\
   X1Evl+QWwZYvIadPjLuFX2mxqKuAGUhKnr7VLLDgrE++l9p5eH2kWTNVAN22FUU3db/R\
   KpE2w==
   Validation:             N/A




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Appendix C.  Implementation status

   This section is to be removed before publishing as an RFC.

   This section records the status of known implementations of the
   protocol defined by this specification at the time of posting of this
   Internet-Draft, and is based on a proposal described in RFC 7942.
   The description of implementations in this section is intended to
   assist the IETF in its decision processes in progressing drafts to
   RFCs.  Please note that the listing of any individual implementation
   here does not imply endorsement by the IETF.  Furthermore, no effort
   has been spent to verify the information presented here that was
   supplied by IETF contributors.  This is not intended as, and must not
   be construed to be, a catalog of available implementations or their
   features.  Readers are advised to note that other implementations may
   exist.

   According to RFC 7942, "this will allow reviewers and working groups
   to assign due consideration to documents that have the benefit of
   running code, which may serve as evidence of valuable experimentation
   and feedback that have made the implemented protocols more mature.
   It is up to the individual working groups to use this information as
   they see fit".

   *  Example .ccr files were created by Job Snijders.  A current
      example CCR (regenerated every few minutes) is available here:
      https://console.rpki-client.org/rpki.ccr

   *  A CCR serializer and deserializer implementation based on
      [rpki-client] was provided by Job Snijders and Theo Buehler.

   *  Another CCR serializer and deserializer implementation based on
      [rpkitouch] was provided by Job Snijders.

   *  A CCR encoding and decoding implementation in Java library
      [rpki-commons] was provided by RIPE NCC.

Authors' Addresses

   Job Snijders
   BSD Software Development
   Amsterdam
   Netherlands
   Email: job@bsd.nl
   URI:   https://www.bsd.nl






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   Bart Bakker
   RIPE NCC
   Netherlands
   Email: bbakker@ripe.net


   Tim Bruijnzeels
   RIPE NCC
   Netherlands
   Email: tbruijnzeels@ripe.net


   Theo Buehler
   OpenBSD
   Switzerland
   Email: tb@openbsd.org



































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