INTAREA R. Moskowitz Internet-Draft HTT Consulting Intended status: Standards Track S. Card Expires: 11 January 2024 AX Enterprize, LLC 10 July 2023 The DRIP DET public Key Infrastructure draft-moskowitz-drip-dki-07 Abstract The DRIP Entity Tag (DET) public Key Infrastructure (DKI) is a specific variant of classic Public Key Infrastructures (PKI) where the organization is around the DET, in place of X.520 Distinguished Names. Further, the DKI uses DRIP Endorsements in place of X.509 certificates for establishing trust within the DKI. There are two X.509 profiles for shadow PKI behind the DKI, with many of their X.509 fields mirroring content in the DRIP Endorsements. This PKI can at times be used where X.509 is expected and non- constrained communication links are available that can handle their larger size. 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 11 January 2024. Copyright Notice Copyright (c) 2023 IETF Trust and the persons identified as the document authors. All rights reserved. Moskowitz & Card Expires 11 January 2024 [Page 1] Internet-Draft DRIP DKI July 2023 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. The DKI without an Apex Entity . . . . . . . . . . . . . 5 1.1.1. RAA Trust lists . . . . . . . . . . . . . . . . . . . 6 1.1.2. RAA Cross-endorsements . . . . . . . . . . . . . . . 6 1.1.3. Bridge RAA with cross-endorsements to RAAs . . . . . 6 2. Terms and Definitions . . . . . . . . . . . . . . . . . . . . 7 2.1. Requirements Terminology . . . . . . . . . . . . . . . . 7 2.2. Definitions . . . . . . . . . . . . . . . . . . . . . . . 7 3. The DET public Key Infrastructure (DKI) . . . . . . . . . . . 8 3.1. The DKI Levels . . . . . . . . . . . . . . . . . . . . . 8 3.1.1. The Apex . . . . . . . . . . . . . . . . . . . . . . 8 3.1.2. The RAAs . . . . . . . . . . . . . . . . . . . . . . 8 3.1.3. The HDAs . . . . . . . . . . . . . . . . . . . . . . 9 3.2. The Offline Requirement for Authentication DETs . . . . . 9 3.3. DNS view of DKI . . . . . . . . . . . . . . . . . . . . . 10 3.4. Managing DET Revocation . . . . . . . . . . . . . . . . . 10 3.5. The Offline cache of HDA Issuing Endorsements . . . . . . 11 3.5.1. HDA Offline Trust cache . . . . . . . . . . . . . . . 11 4. The DKI's Shadow PKI . . . . . . . . . . . . . . . . . . . . 11 4.1. Shadow Lite-PKI with minimal content Certificates . . . . 11 4.1.1. DRIP Lite X.509 certificate profile . . . . . . . . . 11 4.1.2. Serial Number . . . . . . . . . . . . . . . . . . . . 12 4.1.3. Subject . . . . . . . . . . . . . . . . . . . . . . . 12 4.1.4. Subject Alternative Name . . . . . . . . . . . . . . 13 4.1.5. Issuer . . . . . . . . . . . . . . . . . . . . . . . 13 4.1.6. The Lite test PKI . . . . . . . . . . . . . . . . . . 13 4.2. Shadow PKI with PKIX-like Certificates . . . . . . . . . 14 4.2.1. DRIP X.509 certificate profile . . . . . . . . . . . 14 4.2.2. Serial Number . . . . . . . . . . . . . . . . . . . . 14 4.2.3. Subject . . . . . . . . . . . . . . . . . . . . . . . 14 4.2.4. Subject Alternative Name . . . . . . . . . . . . . . 15 4.2.5. Issuer . . . . . . . . . . . . . . . . . . . . . . . 15 4.2.6. Subject Key Identifier . . . . . . . . . . . . . . . 15 4.2.7. Authority Key Identifier . . . . . . . . . . . . . . 15 4.2.8. The PKIX-like test PKI . . . . . . . . . . . . . . . 16 5. The DKI and the ICAO IAC PKI . . . . . . . . . . . . . . . . 16 6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 17 Moskowitz & Card Expires 11 January 2024 [Page 2] Internet-Draft DRIP DKI July 2023 7. Security Considerations . . . . . . . . . . . . . . . . . . . 17 7.1. Protecting against DKI/PKI compromise . . . . . . . . . . 17 8. References . . . . . . . . . . . . . . . . . . . . . . . . . 17 8.1. Normative References . . . . . . . . . . . . . . . . . . 17 8.2. Informative References . . . . . . . . . . . . . . . . . 18 Appendix A. Test DETs and Endorsements . . . . . . . . . . . . . 19 A.1. Test DNS . . . . . . . . . . . . . . . . . . . . . . . . 21 Appendix B. Test X.509 certificates . . . . . . . . . . . . . . 23 B.1. Test Lite X.509 certificates . . . . . . . . . . . . . . 23 B.1.1. openSSL Lite config file . . . . . . . . . . . . . . 28 B.2. Test PKIX-like X.509 certificates . . . . . . . . . . . . 30 B.2.1. openSSL config file . . . . . . . . . . . . . . . . . 36 Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . 39 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 39 1. Introduction A DRIP Entity Tag (DET, [RFC9374]) public Key Infrastructure (DKI) is designed as a strict hierarchy, governed by the administrator of the DET prefix [IPv6-SPECIAL] and having the authority to authorize RAAs. RAAs in turn authorize HDAs within their domain. This authorization is managed via a set of DETs whose sole use is to define the DKI. The RAA Authorization DETs MUST reside in HID = RAA#|0 (Apex Authorization DET in HID = 0|0). There are three main classifications/types of DETs: Authorization DETs Used to assert the authorization of a DKI level. Issuing DETs Used to assert operations within DKI level. Operational DETs Used by operational entities within DKI level All DETs exist in DET-Endorsements (Appendix B of [drip-registries]). These DET-Endorsements provide the proof of registration and thus trust. These DETs, through chained Endorsements define the DKI as follows: +----------+ | Auth | +-o------o-+ | | | +-o-----+ Apex | +--o----+| | | Issue |+ Moskowitz & Card Expires 11 January 2024 [Page 3] Internet-Draft DRIP DKI July 2023 | +---o---+ | | | +-o-----+ | +--o----+| | |CRL,Srv|+ | +-------+ | ******************|************************************ +-o--------+ +-o--------+| | Auth |+ +--o-----o-+ | | | +-o-----+ RAAs | +--o----+| | | Issue |+ | +---o---+ | | | +-o-----+ | +--o----+| | |CRL,Srv|+ | +-------+ | ******************|************************************ +-o--------+ +-o--------+| | Auth |+ +----o-----+ | +-o-----+ HDAs +--o----+| | Issue |+ +---o---+ | +-o-------+ +--o------+| | CRL,Srv || |UAS,Pilot|+ +---------+ ******************************************************* Figure 1: The DKI Endorsements The Authorization DETs exist in a set of DET-Authorization- Endorsements. The lifetime of these endorsements SHOULD be no less than 1 year, recommended 5 years, and should not exceed 10 years. Moskowitz & Card Expires 11 January 2024 [Page 4] Internet-Draft DRIP DKI July 2023 Endorsements SHOULD be reissued prior to expiry (may be for a new DET). DETs used to define this authorization are replaced per undetermined policy (note these DETs do very little signing, see Section 7.1). This separation of DET type roles reduce the risk of private key loss for the critical Authentication DETs by making them infrequently used and only used in offline operations. It does make the chain of trust for a HDA customers' Operational DETs to be 4 Endorsements. 1.1. The DKI without an Apex Entity The hierarchical design of the DKI is the most efficient possible with the least data transmission overhead. But it requires the participation of an Entity, in the role of the Apex, trusted by all the RAAs. The logical Entity for this role is the International Civil Aviation Authority (ICAO), but the processes for ICAO to take on this role are complex. Work is ongoing with the ICAO, but timing is indeterminate and immediately implementable alternatives are needed. The DKI can work by the RAAs establishing mutual trust within a geographic region. It is envisioned that the initial RAA assignments will follow Section 4.1 of [drip-registries], Table 1. Without an Apex, each RAA self-endorses its Authentication DET, acting as its own apex. However, RAAs issued DETs (via their HDAs) will not exist in the air by themselves (except perhaps for some small island nations), thus a geographic regional consortium of RAAs will need to deploy some mechanism for mutual trust for their End Entities to fly together. There are three reasonable approaches for RAAs to manage their mutual trust and it is likely that all will occur: 1. RAA Trust lists 2. RAA Cross-endorsements 3. Bridge RAA with cross-endorsements to RAAs It is recommended that the RAA Trust List be used during initial DKI testing. The cross-endorsing options will need their own testing to work out how best to deploy them. Moskowitz & Card Expires 11 January 2024 [Page 5] Internet-Draft DRIP DKI July 2023 1.1.1. RAA Trust lists A consortium of RAAs MAY choose to maintain a list of RAAs they trust. It is recommended that this list consist of the RAA's Authentication DET and HI. Each RAA in the consortium SHOULD maintain its own list, signed with its Authentication DET. This Trust List MAY contain each RAA's Authentication DET self- endorsement validity dates. If a trusted RAA has more than one self- endorsement (most likely to support key rollover), including these dates makes it easier to have an RAA duplicated in the list. How the RAAs communicate between themselves to maintain these lists is out of scope here. Each RAA SHOULD include validity dates in its Trust List. Frequency of Trust List updates is also out of scope here. Trust Lists is the simplest method to implement, but may not be the simplest to maintain over time. 1.1.2. RAA Cross-endorsements A consortium of RAAs MAY choose to cross-endorse each's Authentication DET. This is done by one RAA endorsing for its community, an other's Authentication DET. This establishes one-way trust; thus, in practice, each RAA needs to cross-endorse each RAA's Authentication DET within the consortium. RAA Cross-endorsements definitely has a scaling (n^2) problem. It works for a starting point or for a very small group of RAAs. How these RAA Cross-endorsements are discovered has not been defined at this point. One potential is via a to-be-defined DNS HHIT RR within the endorsing RAA's zone. This information would need to be cached by any potential offline entity. 1.1.3. Bridge RAA with cross-endorsements to RAAs A consortium of RAAs MAY select one RAA to function as a "Bridge" between all members of the consortium. In this approach, the "Bridge RAA" does not authorize any sub-HDAs. Its sole purpose is the cross- endorse to member RAAs. The Bridge and each RAA cross endorse as in Section 1.1.2. Moskowitz & Card Expires 11 January 2024 [Page 6] Internet-Draft DRIP DKI July 2023 Bridge RAA Cross-endorsementing reduces the scaling challenge to only the number of RAAs in the consortium. Plus there is little need to communicate any changes in the cross-endorsementing to the various parties within the consortium. Thus this option scales the best out of the three alternatives to DKI Apex hierarchy. How these RAA Cross-endorsements are discovered has not been defined at this point. The Bridge RAA will have to be known to all parties within the consortium. One potential, as above, is via a to-be- defined DNS DET RR (Section 8.1.1 of [drip-registries]) within the endorsing RAA's zone. This information would need to be cached by any potential offline entity. 2. Terms and Definitions 2.1. Requirements Terminology 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. 2.2. Definitions This document uses the terms defined in Section 2.2 of [RFC9153] and in Section 2 of [drip-architecture]. The following new terms are used in the document: Authorization DETs DETs whose use is to define a hierarchy level and endorse lower hierarchy level Authorization DETs and finally Issuing DETs at this hierarchy level. They the DETs in the Authentication Endorsements and X.509 certificates. DKI A DRIP Entity Tag (DET) public Key Infrastructure. Similar to an X.509 PKI, but built on the DRIP Endorsements. International Aviation Trust Framework (IATF) The ICAO IATF is comprised of a set of policies, requirements, and best practices that will enable resilient and secured ground- ground, air-ground, and air-air exchange of digital information, and among both traditional and newly-emerging system stakeholders. Moskowitz & Card Expires 11 January 2024 [Page 7] Internet-Draft DRIP DKI July 2023 Issuing DETs DETs whose use is to sign Endorsements and X.509 certificates for Operational DETs that are at the same hierarchy level as the Issuing DET. Operational DETs DETs used by various entities in DRIP protocols and as non- routable IPv6 addresses. A partial list of such entities includes: GCS, Infrastructure (e.g. wireless tower systems), Pilots-in-command, Servers, UA. System Wide Information Management (SWIM) The ICAO SWIM consists of Standards, Infrastructure and Governance enabling the management of Air Navigation Systems (ANS) related information and its exchange between qualified parties via interoperable services. 3. The DET public Key Infrastructure (DKI) 3.1. The DKI Levels 3.1.1. The Apex The Apex Authorization DET is used to endorse RAA Authorization DETs and its own Apex Issuing DETs; it has no other use. This is the case for all Authorization DETs. Apex Issuing DETs are used to endorse DETs, with HID= 0|0, used by Apex services. The DET Apex may be only theoretical if no Entity steps forward to provide this role. 3.1.2. The RAAs Each RAA use its Authorization DET (HID = RAA#|0) to endorse its RAA Issuing DET(s) (also HID = RAA#|0) and for signing its HDA Authorization DETs (HID = RAA#|HDA#). An RAA may have multiple Issuing DETs (HID = RAA#|0), each for a different use (e.g. CRL signing, RAA server signing). It is expected that, over time, an RAA will rollover its Issuing DETs, thus at times there will be more than ONE Issuing DET per role in use. These Issuing DETs, like those at the Apex level, constitute an implicit HDA. There is no Authorization DET for this implicit HDA, but other than only signing for entities like servers needed by the RAA, it should be considered as an HDA in terms of policies. Moskowitz & Card Expires 11 January 2024 [Page 8] Internet-Draft DRIP DKI July 2023 The initial RAA range assignments are defined in Section 4.1 of [drip-registries], Table 1. It is anticipated that DRIP usage will expand to use into General/Civil Aviation. Thus at some point a block of RAAs will be set aside much like for the CTA-2063A [CTA2063A] range. 3.1.3. The HDAs Each HDA use its Authorization DET to endorse its HDA Issuing DETs (e.g. RAA=267, HDA=567). An HDA Issuing DET is used to endorse Operational DETs; those used by the HDA for its services (e.g. USS) and for Devices (e.g. UA, GCS, ground infrastructure) partaking in the HDA's services. If the Operational DET is a Manufacturer DET, the "valid not after" date (vna) MUST be 99991231235959Z. 3.2. The Offline Requirement for Authentication DETs The Authentication DETs private keys MUST NEVER be on a system with any network connectivity. Also efforts MUST be taken to limit any external digital media connections to these offline systems. Compromise of an Authentication DET compromises its and all lower hierarchy levels. Such a compromise could result in a major re- signing effort with a new Authentication DET. Also, during the time of compromise, fraudulent additions to the DKI could have occurred. This means that the process whereby the Authentication DET is used to sign the Endorsement/X.509 certificate of its level's Issuing DET(s) and lower level Authentication DETs MUST be conducted in an offline manner. This offline process need not be onerous. For example, QR codes could be used to pass CSR objects to the offline Authentication DET system, and this system could produce QR codes containing the Endorsements and X.509 certificates it signed. A video conference between the parties could have one side show its QR code and the other copy and print it to move between the video conferencing system and the offline system. This is a simplification of a larger signing operation, but shows how such a signing need not require travel and expensive hand-off methodologies. It should be noted that the endorsement of Issuing DETs follow the same restriction, as it is done with the Authentication DET. It MUST be conducted in an offline manner. Moskowitz & Card Expires 11 January 2024 [Page 9] Internet-Draft DRIP DKI July 2023 3.3. DNS view of DKI The primary view of the DKI is within DNS. There are two main DNS structures, one for DETs and one for DKI entities. In the DET DNS structure, only the Apex and RAA levels MUST be DNSSEC signed. The HDA level may be too dynamic for DNSSEC signing (e.g. hundreds of new EE Operational DETs per hour); trust in the EE Operational DETs within the HDA level comes through inclusion of the HDA Endorsement of EE object. A slow-churn HDA MAY use DNSSEC. The RAA and HDA levels MUST contain their Endorsement by higher object; this provides the needed trust in the Endorsement of EE objects. The Apex level Endorsement is self-signed, thus trust in it is only possible via DNSSEC. Endorsements are currently stored in DNS via the CERT RR using a private OID of 1.3.6.1.4.1.6715.2 (an alternative OID may be 1.3.9.16.2) and further classified by the Endorsement Type. The CERT RR is only a temporary RR for Endorsements, as it cannot support DET revocation (Section 3.4). DNS DET RR (Section 8.1.1 of [drip-registries]) will soon provide an alternative and specifically designed RR for this purpose. Other RR within these levels will vary. There also may be HIP, TLSA, and/or URI RR. Each level needs FQDNs for its Authorization DET and Issuing DET(s) (e.g. PTR to DETs?). FQDNs for services offered may also be present, or a URI for the commercial FQDN for the DKI Entity. TLSA RR of DET SPKI may be directly included here. Same with HIP RR. The Authorization Endorsement SHOULD be present, as SHOULD be Issuing Endorsements. 3.4. Managing DET Revocation For Operational DETs, there is no direct concept of DET revocation. Operational DETs are either discoverable via DNS or not valid despite being in a non-expired Endorsement signed an Issuing DET. Thus if an Issuing Entity needs to "revoke" an Operational DET it removes all entries for it from DNS, so a short TTL on those records is recommended. Authorization and Issuing DETs are not so easily "revoked"; something akin to an X.509 CRL mechanism is needed. This could best be dealt with by Endorsements managed in the new DET RR that includes revocation status. Thus Section 8.1.1 of [drip-registries] defines the specific RR for Endorsements that will be used here. Minimally, at least the revocation status and revocation date(s) need to be in this RR. Until this RR is available, there is no mechanism, other than removal for Authorization and Issuing DET revocations. Moskowitz & Card Expires 11 January 2024 [Page 10] Internet-Draft DRIP DKI July 2023 3.5. The Offline cache of HDA Issuing Endorsements The Offline cache of HDA Issuing Endorsements, used to verify various EE signed objects without needing DNS access, SHOULD consist of the HDA Authentication DET Endorsements of the HDA Issuing DETs. Thus the receiver has a trusted source of the HDA Issuing DET Public Key (HI) in a DRIP standard object (136 bytes). If the DKI DNS tree includes GEO location data and coverage, a receiver could query some service for a trusted cache within some radius of its location. Such as, please tell me of all HDAs within 100KM of... This cache MAY contain the full chain up to the Apex. This could be helpful in limited connectivity environments when encountering an HDA Issuing DET under a unknown Authenticated HDA or RAA. The needed trust chain could be shorter. 3.5.1. HDA Offline Trust cache There are situations where a list of specific HDAs for an entity to trust for some application is needed. This can best be met by maintaining a cache as above but only of the trusted HDA Issuing Endorsements. How a list of this limited trust is maintain and distributed is out of scope of this document and is left to those needing this specific feature. 4. The DKI's Shadow PKI The following defines the components of a DKI's shadow PKI built from X.509 certificates with content that mirrors that in the DKI Endorsements. There are two profiles provided; both may be used, or the community may select one for deployment. In both cases, the PKI tree mirrors that of the DKI levels (Section 3.1). At this point in defining the shadow PKIs, alternatives to a strict hierarchy is still an open work item. This work will follow the pattern set in Section 1.1. 4.1. Shadow Lite-PKI with minimal content Certificates The Lite-PKI is designed to fully mirror the DKI in the smallest reasonable X.509 certificates (e.g. 240 bytes for DER), but still adhere to [RFC5280] MUST field usage. 4.1.1. DRIP Lite X.509 certificate profile The following is the profile for the DRIP X.509 Lite certificates Moskowitz & Card Expires 11 January 2024 [Page 11] Internet-Draft DRIP DKI July 2023 Certificate: Data: Version: 3 (0x2) Serial Number: Signature Algorithm: ED25519 Issuer: CN = Validity Not Before: Not After : Subject: {CN = or Empty} Subject Public Key Info: Public Key Algorithm: ED25519 ED25519 Public-Key: pub: X509v3 extensions: {Operation Certs ONLY} X509v3 Subject Alternative Name: critical IP Address: Signature Algorithm: ED25519 Signature Value: 4.1.2. Serial Number The Serial Number is a MUST field, but it has no usage in this Lite- PKI. It is 1-byte in size and thus duplicates are guaranteed. To drop this field could make many X.509 parsing libraries fail. 4.1.3. Subject The Subject field is only used in Authentication and Issuing Certificates. In this usage it will be the left 8 bytes of the DET encoded in the commonName attribute. Thus CN=2001003000000005 is for an Apex Authentication certificate for prefix 2001003/28 and SuiteID 5. For Entity Certificates, the Subject is Empty and the DET will be in Subject Alternative Name (SAN). In the SAN, the DET can be properly encoded as an IPv6 address. To distinguish the various Issuing DET certificates under an Authentication DET certificate, they will have a letter appended to the CN to identify their role. For consistency across the PKI, these should be in an IANA registry. Current thought is for at least: Issuing - I CRL signing - CRL Moskowitz & Card Expires 11 January 2024 [Page 12] Internet-Draft DRIP DKI July 2023 4.1.4. Subject Alternative Name Subject Alternative Name is only used in Operational (End Entity) certificates. It is used to provide the DET as an IP address with an Empty Subject (SAN MUST be flagged as Critical). The Subject Alternative Name is also used in Manufacturer DET certificates. These may contain the hardwareModuleName as described in [IEEE 802.1AR] that references [RFC4108]. Per [RFC5280] and [IEEE 802.1AR], Manufacturer DET certificates with hardwareModuleName MUST have the notAfter date as 99991231235959Z. 4.1.5. Issuer The Issuer MUST be the higher level's Subject. The Issuer for the Apex Authentication certificate MUST be the Subject (indicating self-signed). As the Subject field streams down to Issuer, it is very important for walking the trust chain via the FQDNs derived from the CN. Note that there may be multiple certificates with a CN, particularly during key rollover. It is up to applications to select the proper signing certificate for validation. 4.1.6. The Lite test PKI The Lite test PKI, following the test DKI, was built with openSSL using the "req" command to create a CSR and the "ca" command to sign the CSR, making the certificate. It should be noted that these CSRs have all the content, less the validityDates, for making a DRIP Endorsement, such that a registrar may prefer to receive CSRs and use it to make both structures. The registrar, per CA practices will provide the validityDates per its policy. The self-signed certificates created by "req -x509" does not allow selection of the validity dates, only the number of days from NOW. The hack used around this limitation is to create a throw-away self- signed certificate as above with the Apex's DET. Then create a CSR with that DET and sign it with the throw-away certificate, setting the validity dates as desired. This now becomes the actual Apex self-signed Authentication certificate and the throw-away certificate can now be thrown away. Moskowitz & Card Expires 11 January 2024 [Page 13] Internet-Draft DRIP DKI July 2023 4.2. Shadow PKI with PKIX-like Certificates The X.509 certificates are minimalistic (less than 400 bytes for DER). Any DRIP specific OIDs should come from the ICAO arc (e.g. 1.3.27.16.2). 4.2.1. DRIP X.509 certificate profile The following is the profile for the DRIP X.509 certificates Certificate: Data: Version: 3 (0x2) Serial Number: Signature Algorithm: ED25519 Issuer: CN = Validity Not Before: Not After : Subject: {CN = or Empty} Subject Public Key Info: Public Key Algorithm: ED25519 ED25519 Public-Key: pub: X509v3 extensions: X509v3 Subject Alternative Name: critical {in EE} IP Address: X509v3 Subject Key Identifier: {not in EE} X509v3 Authority Key Identifier: X509v3 Basic Constraints: critical X509v3 Key Usage: critical Signature Algorithm: ED25519 Signature Value: 4.2.2. Serial Number The certificates will contain a 8-byte randomly generated Serial Number, compliant with CABForum recommendations. Serial Numbers are included for CRL functionality. 4.2.3. Subject The certificates Subject will be coded in the commonName attribute. This will either be the DET or the left 8 bytes of the DET (for Authentication and Issuing DET certificates). Thus CN=2001003000000005 is for an Apex Authentication certificate for prefix 2001003/28 and SuiteID 5. Moskowitz & Card Expires 11 January 2024 [Page 14] Internet-Draft DRIP DKI July 2023 For Entity Certificates, the Subject is Empty and the DET will be in Subject Alternative Name (SAN). In the SAN, the DET can be properly encoded as an IPv6 address. To distinguish the various Issuing DET certificates for the Authentication DET certificate, they will have a letter appended to the CN to identify their role. For consistency across the PKI, these should be in an IANA registry. Current thought is for at least: Issuing - I CRL signing - CRL 4.2.4. Subject Alternative Name Subject Alternative Name is only used in Operational (End Entity) certificates. It is used to provide the DET as an IP address with an Empty Subject (SAN MUST be flagged as Critical). The Subject Alternative Name is also used in Manufacturer DET certificates. These may contain the hardwareModuleName as described in [IEEE 802.1AR] that references [RFC4108]. Per [RFC5280] and [IEEE 802.1AR], Manufacturer DET certificates with hardwareModuleName MUST have the notAfter date as 99991231235959Z. 4.2.5. Issuer The Issuer MUST be the higher level's Subject. The Issuer for the Apex Authentication certificate MUST be the Subject (indicating self-signed). 4.2.6. Subject Key Identifier The Subject Key Identifier MUST be the DET. This is a major deviation from "standard" X.509 certificates that hash (normally with SHA2) the Public Key to fill the Subject Key Identifier. The Subject Key Identifier is NOT included in EE certificates. 4.2.7. Authority Key Identifier The Authority Key Identifier MUST be the higher level's Subject Key Identifier (i.e. DET). This partially follows standard practice to chain up the Authority Key Identifier' from the Subject Key Identifier, except for how the Subject Key Identifiers are populated. Moskowitz & Card Expires 11 January 2024 [Page 15] Internet-Draft DRIP DKI July 2023 The Authority Key Identifier for the Apex Authentication certificate MUST be the Subject Key Identifier (indicating self-signed). 4.2.8. The PKIX-like test PKI The PKIX-like test PKI, following the test DKI, was built with openSSL using the "req" command to create a CSR and the "ca" command to sign the CSR, making the certificate. It should be noted that these CSRs have all the content, less the validityDates, for making a DRIP Endorsement, such that a registrar may prefer to receive CSRs and use it to make both structures. The registrar, per CA practices will provide the validityDates per its policy. The self-signed certificates created by "req -x509" does not allow selection of the validity dates, only the number of days from NOW. The hack used around this limitation is to create a throw-away self- signed certificate as above with the Apex's DET. Then create a CSR with that DET and sign it with the throw-away certificate, setting the validity dates as desired. This now becomes the actual Apex self-signed Authentication certificate and the throw-away certificate can now be thrown away. 5. The DKI and the ICAO IAC PKI The ICAO has defined an International Aviation Common PKI (IAC) PKI in their ICAO Doc 10169 Aviation Common Certificate Policy (ACCP). A test version of this PKI is rolling out for testing the Aviation System Wide Information Management (SWIM) environment. Currently, this PKI is using ECDSA P-256 in its certificates. This is equivalent to DET SuiteID of "3". The subjectNames in use can readily by mapped to RAAs (Section 4.1 of [drip-registries], Table 1) and HDAs. Thus it is a potential straight-forward technical work item to add DET support into the PKI. The DETs can readily be stored in subjectAltName or more interestingly in subjectKeyIdentifier (and thus authorityKeyIdentifier). There are a number of advantages in the IATF and SWIM to have DETs and the matching DNS available. For example, the "cost" of adding DETs to these certificates could result in moving much of their content into DNS SRV RR and potentially reduce their size by 1/3rd. DETs as the authorityKeyIdentifier would enable DNS for Trust Chain discovery. Another approach is direct inclusion in this PKI of the DET "Lite" EE certificates for constrained A2A communications. Moskowitz & Card Expires 11 January 2024 [Page 16] Internet-Draft DRIP DKI July 2023 Discussions are ongoing with those involved with the IATF PKI and this could open up DET usage into General/Civil Aviation. 6. IANA Considerations TBD - may need a registry of Signing certificate types. 7. Security Considerations Risks in the DKI are similar to those in any X.509 PKI. The methodologies to mitigate risk in PKI management should be considered and implemented as appropriate. The DKI presents a tree-breath problem that is rarely seen in PKIs and needs practical solutions to minimize cost of operations and not introduce risks needlessly. Consider that there can be 16,384 RAAs. Assume only 10,000 RAAs, each of which Authentication DET Endorsement has a 10 year validity period. This means that, on average, 1,000 RAAs per year need to rekey their Authentication DET Endorsement, or on average, 3 per day. Current witnessed key signing processes will not scale to this volume. Some virtual method (like in Section 3.2) is needed. 7.1. Protecting against DKI/PKI compromise There is always a risk of key compromise that could be a major setback to the operation of a PKI and likewise the DRIP DKI. To mitigate this risk, the Authentication DETs MUST only be used in offline signing operations. They MUST NEVER be used on connected systems. The information needed to create the Endorsements and X.509 certificates are brought to them on media that cannot transfer code, for example in a QR code. The objects that are created are then transferred away from the offline system to be used where needed. It should be noted that this offline process MUST be followed down the DKI/PKI tree. That is, the Apex has offline operations that include signing the RAA Authentication DET that will be used in the RAA's set up. 8. References 8.1. Normative References [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, DOI 10.17487/RFC2119, March 1997, . Moskowitz & Card Expires 11 January 2024 [Page 17] Internet-Draft DRIP DKI July 2023 [RFC8174] Leiba, B., "Ambiguity of Uppercase vs Lowercase in RFC 2119 Key Words", BCP 14, RFC 8174, DOI 10.17487/RFC8174, May 2017, . 8.2. Informative References [CTA2063A] ANSI/CTA, "ANSI/CTA 2063-A Small Unmanned Aerial Systems Numbers", September 2019, . [drip-architecture] Card, S. W., Wiethuechter, A., Moskowitz, R., Zhao, S., and A. Gurtov, "Drone Remote Identification Protocol (DRIP) Architecture", Work in Progress, Internet-Draft, draft-ietf-drip-arch-31, 6 March 2023, . [drip-registries] Wiethuechter, A. and J. Reid, "DRIP Entity Tag (DET) Identity Management Architecture", Work in Progress, Internet-Draft, draft-ietf-drip-registries-12, 10 July 2023, . [drip_scripts] "Python scripts to generate DETs and Endorsements", April 2023, . [IEEE 802.1AR] IEEE, "IEEE Standard for Local and Metropolitan Area Networks - Secure Device Identity", DOI 10.1109/ieeestd.2018.8423794, 31 July 2018, . [IPv6-SPECIAL] IANA, "IANA IPv6 Special-Purpose Address Registry", . [RFC4108] Housley, R., "Using Cryptographic Message Syntax (CMS) to Protect Firmware Packages", RFC 4108, DOI 10.17487/RFC4108, August 2005, . Moskowitz & Card Expires 11 January 2024 [Page 18] Internet-Draft DRIP DKI July 2023 [RFC5280] Cooper, D., Santesson, S., Farrell, S., Boeyen, S., Housley, R., and W. Polk, "Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile", RFC 5280, DOI 10.17487/RFC5280, May 2008, . [RFC9153] Card, S., Ed., Wiethuechter, A., Moskowitz, R., and A. Gurtov, "Drone Remote Identification Protocol (DRIP) Requirements and Terminology", RFC 9153, DOI 10.17487/RFC9153, February 2022, . [RFC9374] Moskowitz, R., Card, S., Wiethuechter, A., and A. Gurtov, "DRIP Entity Tag (DET) for Unmanned Aircraft System Remote ID (UAS RID)", RFC 9374, DOI 10.17487/RFC9374, March 2023, . Appendix A. Test DETs and Endorsements The following are test DETs and Endorsements for the test DKI. This testing environment is open to all. There are 4 RAAs available for others to build out. HDAs under the 4 preset RAAs, or under any of the 4, built out be others, are available. Finally the test HDAs are available for setting up a handful of entities. Any tester wanting more than a few DETs for entities should plan on doing that under their own HDA. The following are the test values and objects. They were generated using the det-gen.py and endorse.py scripts available at [drip_scripts]. Apex Authorizing DET (HID=0|0) DET: 20010030000000052aeb9adc1ce8b1ec DET: 2001:0030:0000:0005:2aeb:9adc:1ce8:b1ec Raw HI: d60268e6cf64ad693e5bb055d7c6e48c 7ed07013609e6ed02bb935b3d6acf53e vnb="05/01/2023" vna="06/01/2024" DETofP=0x20010030000000052aeb9adc1ce8b1ec Endorsement(136 bytes): 644f3940665a9cc020010030000000052a eb9adc1ce8b1ecd60268e6cf64ad693e5bb055d7c6e48c7ed07013 609e6ed02bb935b3d6acf53e20010030000000052aeb9adc1ce8b1 ec17008ad1bc982c6cd8c955b1ef621ef80ee5c269aa3dbcfd34b5 85162b19d39dad7d7ba78aeb0e84bc4dd8efc2246dd30834b1e5d0 d220e7815af921a560fc0d Moskowitz & Card Expires 11 January 2024 [Page 19] Internet-Draft DRIP DKI July 2023 rra16376 Authorizing DET (HID=16376|0) DET: 2001003ffe000005f970a4d7fd0e14a5 DET: 2001:003f:fe00:0005:f970:a4d7:fd0e:14a5 Raw HI: df7e64cc1bfdcb65835437b37b6110d5 6fedb81443f58d53df8094e0e2828d23 vnb="05/07/2023" vna="05/21/2024" DETofP=0x20010030000000052aeb9adc1ce8b1ec Endorsement(136 bytes): 64572240664c1c402001003ffe000005f9 70a4d7fd0e14a5df7e64cc1bfdcb65835437b37b6110d56fedb814 43f58d53df8094e0e2828d2320010030000000052aeb9adc1ce8b1 ecea2cdf1933fb93842cb2c4e849fda3637493c9eedbfe08178fd5 c7293c1b46acbd9a6c0c740a297ffda903b53bb34e8779ee8397d4 9e6216b51ac7e87161200c Issuing DET (HID=16376|0) DET: 2001003ffe000005191f150daf98f382 DET: 2001:003f:fe00:0005:191f:150d:af98:f382 Raw HI: b81b0180631ce60c14d14ab80a69c214 7305836bf80b3b10284d36bae750265c vnb="05/07/2023" vna="05/21/2024" DETofP=0x20010030003ff805d80a0a62d3062894 Endorsement(136 bytes): 64572240664c1c402001003ffe00000519 1f150daf98f382b81b0180631ce60c14d14ab80a69c2147305836b f80b3b10284d36bae750265c20010030003ff805d80a0a62d30628 94c1d2d6c8e0165da6318a8130a6eb5149830c9717bbad98be4fde abec31195df9d6c41319d477cafcebf19efaa2694abc05f4460cbb aedfee617fb44646523807 hda16376-16376 Authorizing DET (HID=16376|16376) DET: 2001003ffe3ff805e805a98f9df15e2d DET: 2001:003f:fe3f:f805:e805:a98f:9df1:5e2d Raw HI: b82b27f86b013468fe48d85b54f01bf6 5385f302ab2e136dc51a3b929c88ce5a vnb="05/14/2023" vna="05/14/2024" DETofP=0x2001003ffe000005f970a4d7fd0e14a5 Endorsement(136 bytes): 64605cc06642e1c02001003ffe000005a1 43e69785df6f61e8f6d91f7d5351485471420a9c7d5df180c7a31d b86cc937581ee8106f18e4eb2001003ffe000005f970a4d7fd0e14 a5a791e3e1f8fe3fcc4848232df472cb4f796a1b836b918b55d69e fac9a8d35d0fda184b5915e467969a8c6352f1e8ff65a0e8d42c2c 08f1b22f800b1288512904 Moskowitz & Card Expires 11 January 2024 [Page 20] Internet-Draft DRIP DKI July 2023 Issuing DET (HID=16376|16376) DET: 2001003ffe3ff8059b0e2860eb0bacde DET: 2001:003f:fe3f:f805:9b0e:2860:eb0b:acde Raw HI: 65f26bc01b89398f787c4785e4e7f6e0 1f2993137759995d7baa72791a44ac5d vnb="05/14/2023" vna="05/14/2024" DETofP=0x2001003ffe3ff805e805a98f9df15e2d Endorsement(136 bytes): 64605cc06642e1c02001003ffe3ff8059b 0e2860eb0bacde65f26bc01b89398f787c4785e4e7f6e01f299313 7759995d7baa72791a44ac5d2001003ffe3ff805e805a98f9df15e 2d72e53262d8b49452bfd6324daf2193fce47bbbce37bce0391542 bde64a156ab0942fa1ad340ecabf1e49eecf3818b25322955ef71d ffc7b786c5c48a6a84c003 UA DET in 16376.16376 DET: 2001003ffe3ff805a93e53b72709e0ba DET: 2001:003f:fe3f:f805:a93e:53b7:2709:e0ba Raw HI: bf0453a01120ed8e651ae9f6951a8278 3da820296a338effd54a0ba846a99875 vnb="05/14/2023" vna="05/21/2023" DETofP=0x2001003ffe3ff8059b0e2860eb0bacde Endorsement(136 bytes): 64605cc0646997402001003ffe3ff805a9 3e53b72709e0babf0453a01120ed8e651ae9f6951a82783da82029 6a338effd54a0ba846a998752001003ffe3ff8059b0e2860eb0bac de903ad90789c07f948737280159a071449caed275c91cb73d782d 904a20492d12e27eb0f40c6098e70c5e5e382a3b43d9cac4994b4a e82758665d62346fd80d00 A.1. Test DNS The DNS tree(s) for the above test data is still in limbo and will be added in a later version of this draft. But some of the RR for these DETs are available below: Note: this needs to be updated with the proposed DET RR. Apex Authorizing DET (HID=0|0) IN TLSA 3 1 0 ( 302a300506032b6570032100d60268e6cf64ad693e5b b055d7c6e48c7ed07013609e6ed02bb935b3d6acf53e ) IN IN HIP ( 5 2001003ffe000005f970a4d7fd0e14a5 1gJo5s9krWk+W7BV18bkjH7QcBNgnm7QK7k1s9as9T4= ) IN CERT 254 0 0 ( DAYKKwYBBAG0OwIGBmRPOUBmWpzAIAEAMAAAAAUq65 rcHOix7NYCaObPZK1pPluwVdfG5Ix+0HATYJ5u0Cu5NbPWrPU+IAEAM AAAAAUq65rcHOix7BcAitG8mCxs2MlVse9iHvgO5cJpqj28/TS1hR YrGdOdrX17p4rrDoS8TdjvwiRt0wg0seXQ0iDngVr5IaVg/A0= ) Moskowitz & Card Expires 11 January 2024 [Page 21] Internet-Draft DRIP DKI July 2023 rra16376 Authorizing DET (HID=16376|0) IN TLSA 3 1 0 ( 302a300506032b6570032100efcd5ca4427d87d9642c 76ebf48776df567cf2a9e5e513cb50b966ce54162fa0 ) IN IN HIP ( 5 2001003ffe000005f970a4d7fd0e14a5 335kzBv9y2WDVDeze2EQ1W/tuBRD9Y1T34CU4OKCjSM= ) IN CERT 254 0 0 ( DAYKKwYBBAG0OwIGBmRXIkBmTBxAIAEAP/4AAAX5cK TX/Q4Upd9+ZMwb/ctlg1Q3s3thENVv7bgUQ/WNU9+AlODigo0jIAEAM AAAAAUq65rcHOix7Oos3xkz+5OELLLE6En9o2N0k8nu2/4IF4/Vxy k8G0asvZpsDHQKKX/9qQO1O7NOh3nug5fUnmIWtRrH6HFhIAw= ) Issuing DET (HID=16376|0) IN TLSA 3 1 0 ( 302a300506032b6570032100b81b0180631ce60c14d1 4ab80a69c2147305836bf80b3b10284d36bae750265c ) IN IN HIP ( 5 2001003ffe000005191f150daf98f382 uBsBgGMc5gwU0Uq4CmnCFHMFg2v4CzsQKE02uudQJlw= ) IN CERT 254 0 0 ( DAYKKwYBBAG0OwIGBmRXIkBmTBxAIAEAP/4AAAUZHx UNr5jzgrgbAYBjHOYMFNFKuAppwhRzBYNr+As7EChNNrrnUCZcIAEAM AA/+AXYCgpi0wYolMHS1sjgFl2mMYqBMKbrUUmDDJcXu62Yvk/eq+ wxGV351sQTGdR3yvzr8Z76omlKvAX0Rgy7rt/uYX+0RkZSOAc= ) hda16376-16376 Authorizing DET (HID=16376|16376) IN TLSA 3 1 0 ( 302a300506032b6570032100b82b27f86b013468fe48 d85b54f01bf65385f302ab2e136dc51a3b929c88ce5a ) IN HIP ( 5 2001003ffe3ff805e805a98f9df15e2d uCsn+GsBNGj+SNhbVPAb9lOF8wKrLhNtxRo7kpyIzlo= ) IN CERT 254 0 0 ( DAYKKwYBBAG0OwIGBmRgXMBmQuHAIAEAP/4/+AXoBa mPnfFeLbgrJ/hrATRo/kjYW1TwG/ZThfMCqy4TbcUaO5KciM5aIA EAP/4AAAX5cKTX/Q4UpYcZ8SaHQTV9yscZCjN/KwqfqJXc/h3M4R Hz366TSNShUany3nQG3bF+FR1vRQqOEbXIYdTID/PcgZaUiGezJw w= ) Issuing DET (HID=16376|16376) IN TLSA 3 1 0 ( 302a300506032b657003210065f26bc01b89398f787c 4785e4e7f6e01f2993137759995d7baa72791a44ac5d ) IN HIP ( 5 2001003ffe3ff8059b0e2860eb0bacde ZfJrwBuJOY94fEeF5Of24B8pkxN3WZlde6pyeRpErF0= ) IN CERT 254 0 0 ( DAYKKwYBBAG0OwIGBmRgXMBmQuHAIAEAP/4/+AWbDi hg6wus3mXya8AbiTmPeHxHheTn9uAfKZMTd1mZXXuqcnkaRKxdIA EAP/4/+AXoBamPnfFeLXLlMmLYtJRSv9YyTa8hk/zke7vON7zgOR VCveZKFWqwlC+hrTQOyr8eSe7POBiyUyKVXvcd/8e3hsXEimqEwA M= ) UA DET in 16376.16376 IN TLSA 3 1 0 ( 302a300506032b6570032100bf0453a01120ed8e651a e9f6951a82783da820296a338effd54a0ba846a99875 ) IN HIP ( 5 2001003ffe3ff805a93e53b72709e0ba Moskowitz & Card Expires 11 January 2024 [Page 22] Internet-Draft DRIP DKI July 2023 vwRToBEg7Y5lGun2lRqCeD2oIClqM47/1UoLqEapmHU= ) IN CERT 254 0 0 ( DAYKKwYBBAG0OwIGBmRgXMBkaZdAIAEAP/4/+AWpPl O3Jwngur8EU6ARIO2OZRrp9pUagng9qCApajOO/9VKC6hGqZh1IA EAP/4/+AWbDihg6wus3pA62QeJwH+UhzcoAVmgcUScrtJ1yRy3PX gtkEogSS0S4n6w9AxgmOcMXl44KjtD2crEmUtK6CdYZl1iNG/YDQ A= ) Appendix B. Test X.509 certificates B.1. Test Lite X.509 certificates The following the test DRIP X.509 certificates that mirror the test Endorsements. apex.cert.pem (der is 233 bytes) -----BEGIN CERTIFICATE----- MIHmMIGZoAMCAQICAX0wBQYDK2VwMBsxGTAXBgNVBAMMEDIwMDEwMDMwMDAwMDAw MDUwHhcNMjMwNTAxMDAwMDAwWhcNMjQwNjAxMDAwMDAwWjAbMRkwFwYDVQQDDBAy MDAxMDAzMDAwMDAwMDA1MCowBQYDK2VwAyEA1gJo5s9krWk+W7BV18bkjH7QcBNg nm7QK7k1s9as9T6jAjAAMAUGAytlcANBACPlOBP4moEXJ71aX5K/U73RL07f20Av 1XFK2Vsl3GKDVJ5AQPar68i+o3JGHXdvAUaI7WucxuMBy/akgicsrAA= -----END CERTIFICATE----- Certificate: Data: Version: 3 (0x2) Serial Number: 125 (0x7d) Signature Algorithm: ED25519 Issuer: CN = 2001003000000005 Validity Not Before: May 1 00:00:00 2023 GMT Not After : Jun 1 00:00:00 2024 GMT Subject: CN = 2001003000000005 Subject Public Key Info: Public Key Algorithm: ED25519 ED25519 Public-Key: pub: d6:02:68:e6:cf:64:ad:69:3e:5b:b0:55:d7:c6:e4: 8c:7e:d0:70:13:60:9e:6e:d0:2b:b9:35:b3:d6:ac: f5:3e Signature Algorithm: ED25519 Signature Value: 23:e5:38:13:f8:9a:81:17:27:bd:5a:5f:92:bf:53:bd:d1:2f: 4e:df:db:40:2f:d5:71:4a:d9:5b:25:dc:62:83:54:9e:40:40: f6:ab:eb:c8:be:a3:72:46:1d:77:6f:01:46:88:ed:6b:9c:c6: e3:01:cb:f6:a4:82:27:2c:ac:00 Moskowitz & Card Expires 11 January 2024 [Page 23] Internet-Draft DRIP DKI July 2023 rra16376.cert.pem (der is 233 bytes) -----BEGIN CERTIFICATE----- MIHmMIGZoAMCAQICAQowBQYDK2VwMBsxGTAXBgNVBAMMEDIwMDEwMDMwMDAwMDAw MDUwHhcNMjMwNTE1MDAwMDAwWhcNMjQwNTI0MDAwMDAwWjAbMRkwFwYDVQQDDBAy MDAxMDAzZmZlMDAwMDA1MCowBQYDK2VwAyEA335kzBv9y2WDVDeze2EQ1W/tuBRD 9Y1T34CU4OKCjSOjAjAAMAUGAytlcANBAP2wkuzxmUj18bodQCs2PyZf+zGYGTfq QGp6bE85jKymT/w3Di94fDJwuEW03gaWM8fwbWTND2DjFfYru3Vd+w4= -----END CERTIFICATE----- Certificate: Data: Version: 3 (0x2) Serial Number: 10 (0xa) Signature Algorithm: ED25519 Issuer: CN = 2001003000000005 Validity Not Before: May 15 00:00:00 2023 GMT Not After : May 24 00:00:00 2024 GMT Subject: CN = 2001003ffe000005 Subject Public Key Info: Public Key Algorithm: ED25519 ED25519 Public-Key: pub: df:7e:64:cc:1b:fd:cb:65:83:54:37:b3:7b:61:10: d5:6f:ed:b8:14:43:f5:8d:53:df:80:94:e0:e2:82: 8d:23 Signature Algorithm: ED25519 Signature Value: fd:b0:92:ec:f1:99:48:f5:f1:ba:1d:40:2b:36:3f:26:5f:fb: 31:98:19:37:ea:40:6a:7a:6c:4f:39:8c:ac:a6:4f:fc:37:0e: 2f:78:7c:32:70:b8:45:b4:de:06:96:33:c7:f0:6d:64:cd:0f: 60:e3:15:f6:2b:bb:75:5d:fb:0e Moskowitz & Card Expires 11 January 2024 [Page 24] Internet-Draft DRIP DKI July 2023 Authentication hda16376-16376.cert.pem (der is 234 bytes) -----BEGIN CERTIFICATE----- MIHnMIGaoAMCAQICAgDxMAUGAytlcDAbMRkwFwYDVQQDDBAyMDAxMDAzZmZlMDAw MDA1MB4XDTIzMDUyMTAwMDAwMFoXDTI0MDUyMTAwMDAwMFowGzEZMBcGA1UEAwwQ MjAwMTAwM2ZmZTNmZjgwNTAqMAUGAytlcAMhAOj22R99U1FIVHFCCpx9XfGAx6Md uGzJN1ge6BBvGOTrowIwADAFBgMrZXADQQA1tx7/4AWWsW3NdmWgWVDiShJF96kn pw7CVU2vsYuXnXuLE/qIAluUEW+lnjGFAE9HjIgGks1He/uZekxCD9kI -----END CERTIFICATE----- Certificate: Data: Version: 3 (0x2) Serial Number: 241 (0xf1) Signature Algorithm: ED25519 Issuer: CN = 2001003ffe000005 Validity Not Before: May 21 00:00:00 2023 GMT Not After : May 21 00:00:00 2024 GMT Subject: CN = 2001003ffe3ff805 Subject Public Key Info: Public Key Algorithm: ED25519 ED25519 Public-Key: pub: e8:f6:d9:1f:7d:53:51:48:54:71:42:0a:9c:7d:5d: f1:80:c7:a3:1d:b8:6c:c9:37:58:1e:e8:10:6f:18: e4:eb Signature Algorithm: ED25519 Signature Value: 35:b7:1e:ff:e0:05:96:b1:6d:cd:76:65:a0:59:50:e2:4a:12: 45:f7:a9:27:a7:0e:c2:55:4d:af:b1:8b:97:9d:7b:8b:13:fa: 88:02:5b:94:11:6f:a5:9e:31:85:00:4f:47:8c:88:06:92:cd: 47:7b:fb:99:7a:4c:42:0f:d9:08 Moskowitz & Card Expires 11 January 2024 [Page 25] Internet-Draft DRIP DKI July 2023 Issuing hda16376-16376.cert.pem (der is 234 bytes) -----BEGIN CERTIFICATE----- MIHnMIGaoAMCAQICAWMwBQYDK2VwMBsxGTAXBgNVBAMMEDIwMDEwMDNmZmUzZmY4 MDUwHhcNMjMwNTE0MDAwMDAwWhcNMjQwNTE0MDAwMDAwWjAcMRowGAYDVQQDDBEy MDAxMDAzZmZlM2ZmODA1STAqMAUGAytlcAMhAGXya8AbiTmPeHxHheTn9uAfKZMT d1mZXXuqcnkaRKxdowIwADAFBgMrZXADQQC59+Elr3gZjarg2Gjf7DFgkMvvwrBR y8j+1b5lm+V4GiWoPW24hWlO9oHmv5wMiyGuuE7w4Lmoka/AA2haQIEO -----END CERTIFICATE----- Certificate: Data: Version: 3 (0x2) Serial Number: 99 (0x63) Signature Algorithm: ED25519 Issuer: CN = 2001003ffe3ff805 Validity Not Before: May 14 00:00:00 2023 GMT Not After : May 14 00:00:00 2024 GMT Subject: CN = 2001003ffe3ff805I Subject Public Key Info: Public Key Algorithm: ED25519 ED25519 Public-Key: pub: 65:f2:6b:c0:1b:89:39:8f:78:7c:47:85:e4:e7:f6: e0:1f:29:93:13:77:59:99:5d:7b:aa:72:79:1a:44: ac:5d Signature Algorithm: ED25519 Signature Value: b9:f7:e1:25:af:78:19:8d:aa:e0:d8:68:df:ec:31:60:90:cb: ef:c2:b0:51:cb:c8:fe:d5:be:65:9b:e5:78:1a:25:a8:3d:6d: b8:85:69:4e:f6:81:e6:bf:9c:0c:8b:21:ae:b8:4e:f0:e0:b9: a8:91:af:c0:03:68:5a:40:81:0e UA1-16376-16376 CSR Data: Version: 1 (0x0) Subject: Subject Public Key Info: Public Key Algorithm: ED25519 ED25519 Public-Key: pub: bf:04:53:a0:11:20:ed:8e:65:1a:e9:f6:95:1a:82: 78:3d:a8:20:29:6a:33:8e:ff:d5:4a:0b:a8:46:a9: 98:75 Attributes: Requested Extensions: Moskowitz & Card Expires 11 January 2024 [Page 26] Internet-Draft DRIP DKI July 2023 X509v3 Subject Alternative Name: critical IP Address:2001:3F:FE3F:F805:A93E:53B7:2709:E0BA Signature Algorithm: ED25519 Signature Value: e5:36:03:fa:3c:7b:c7:a8:03:4e:6e:37:37:de:79:7d:c3:d4: 01:43:a4:62:4d:91:ec:e5:20:0e:7f:6e:2f:f2:44:02:3a:b8: b8:3f:1f:60:a8:e9:02:40:cc:e0:73:70:1c:2c:c5:1a:12:21: ff:a8:f8:d0:07:a8:47:29:fd:05 UA1-16376-16376.cert.pem (der is 240 bytes) -----BEGIN CERTIFICATE----- MIHtMIGgoAMCAQICAgCtMAUGAytlcDAcMRowGAYDVQQDDBEyMDAxMDAzZmZlM2Zm ODA1STAeFw0yMzA1MjEwMDAwMDBaFw0yMzA1MjQwMDAwMDBaMAAwKjAFBgMrZXAD IQC/BFOgESDtjmUa6faVGoJ4PaggKWozjv/VSguoRqmYdaMiMCAwHgYDVR0RAQH/ BBQwEocQIAEAP/4/+AWpPlO3JwngujAFBgMrZXADQQBK8rkblSDYvfLxsT34THDh ZBJTyEvtahfsTA1fY1bkMai8obOW5Gsn3tAad+BF1kyZUxR0tRl0Mwb+ZXZlsC8C -----END CERTIFICATE----- Certificate: Data: Version: 3 (0x2) Serial Number: 173 (0xad) Signature Algorithm: ED25519 Issuer: CN = 2001003ffe3ff805I Validity Not Before: May 21 00:00:00 2023 GMT Not After : May 24 00:00:00 2023 GMT Subject: Subject Public Key Info: Public Key Algorithm: ED25519 ED25519 Public-Key: pub: bf:04:53:a0:11:20:ed:8e:65:1a:e9:f6:95:1a:82: 78:3d:a8:20:29:6a:33:8e:ff:d5:4a:0b:a8:46:a9: 98:75 X509v3 extensions: X509v3 Subject Alternative Name: critical IP Address:2001:3F:FE3F:F805:A93E:53B7:2709:E0BA Signature Algorithm: ED25519 Signature Value: 4a:f2:b9:1b:95:20:d8:bd:f2:f1:b1:3d:f8:4c:70:e1:64:12: 53:c8:4b:ed:6a:17:ec:4c:0d:5f:63:56:e4:31:a8:bc:a1:b3: 96:e4:6b:27:de:d0:1a:77:e0:45:d6:4c:99:53:14:74:b5:19: 74:33:06:fe:65:76:65:b0:2f:02 Moskowitz & Card Expires 11 January 2024 [Page 27] Internet-Draft DRIP DKI July 2023 B.1.1. openSSL Lite config file The following openssl-conf file was used to create the above Lite, certificates. It is dependent on a number of environment variables to make each unique certificate. The conf file is a bit of a hack of multiple conf files and some sections are really not used. It is included here as a guide. # OpenSSL DRIP Lite X.509 configuration file. # Copy to `$dir/openssl-lite.cnf`. [ ca ] # `man ca` default_ca = CA_default [ CA_default ] # Directory and file locations. dir = $ENV::dir cadir = $ENV::cadir format = $ENV::format signcert = $ENV::signcert certs = $dir/certs crl_dir = $dir/crl new_certs_dir = $dir/newcerts database = $dir/index.txt serial = $dir/serial RANDFILE = $dir/private/.rand # The signing key and signing certificate. private_key = $cadir/private/$signcert.key.$format certificate = $cadir/certs/$signcert.cert.$format # SHA-1 is deprecated, so use SHA-2 instead. default_md = sha256 name_opt = ca_default cert_opt = ca_default default_startdate = $ENV::startdate default_enddate = $ENV::enddate preserve = no policy = policy_loose copy_extensions = copy [ policy_loose ] # Allow the intermediate CA to sign a more # diverse range of certificates. # See the POLICY FORMAT section of the `ca` man page. Moskowitz & Card Expires 11 January 2024 [Page 28] Internet-Draft DRIP DKI July 2023 countryName = optional stateOrProvinceName = optional localityName = optional organizationName = optional organizationalUnitName = optional commonName = optional [ req ] # Options for the `req` tool (`man req`). distinguished_name = req_distinguished_name string_mask = utf8only req_extensions = req_ext default_crl_days = 30 # SHA-1 is deprecated, so use SHA-2 instead. default_md = sha256 # Extension to add when the -x509 option is used. x509_extensions = v3_ca [ req_distinguished_name ] # See . #countryName = Country Name (2 letter code) #stateOrProvinceName = State or Province Name #localityName = Locality Name #0.organizationName = Organization Name #organizationalUnitName = Organizational Unit Name commonName = Common Name [ req_ext ] #basicConstraints = $ENV::basicConstraints [ v3_ca ] # Extensions for a typical CA (`man x509v3_config`). subjectKeyIdentifier = none authorityKeyIdentifier = none #basicConstraints = $ENV::basicConstraints [ usr_cert ] # Extensions for client certificates (`man x509v3_config`). #basicConstraints = $ENV::basicConstraints subjectKeyIdentifier = none authorityKeyIdentifier = none [ usr_req ] # Extensions for client certificates (`man x509v3_config`). subjectAltName = critical, $ENV::subjectAltName Moskowitz & Card Expires 11 January 2024 [Page 29] Internet-Draft DRIP DKI July 2023 B.2. Test PKIX-like X.509 certificates The following the test DRIP X.509 certificates that mirror the test Endorsements. Moskowitz & Card Expires 11 January 2024 [Page 30] Internet-Draft DRIP DKI July 2023 apex.cert.pem (der is 331 bytes) -----BEGIN CERTIFICATE----- MIIBRzCB+qADAgECAgkAgEv1rlaKZB4wBQYDK2VwMBsxGTAXBgNVBAMMEDIwMDEw MDMwMDAwMDAwMDUwHhcNMjMwNTAxMDAwMDAwWhcNMjQwNjAxMDAwMDAwWjAbMRkw FwYDVQQDDBAyMDAxMDAzMDAwMDAwMDA1MCowBQYDK2VwAyEA1gJo5s9krWk+W7BV 18bkjH7QcBNgnm7QK7k1s9as9T6jWzBZMBkGA1UdDgQSBBAgAQAwAAAABSrrmtwc 6LHsMBsGA1UdIwQUMBKAECABADAAAAAFKuua3BzosewwDwYDVR0TAQH/BAUwAwEB /zAOBgNVHQ8BAf8EBAMCAgQwBQYDK2VwA0EAB8h4FSMV3tqbAfFsu8ntlY6RIF7X 7ikWzzKb2IoxEXjXLV9E1KpNG0WP572aK2aj1B1CCE5XGpuMm1s4pvpeCg== -----END CERTIFICATE----- Certificate: Data: Version: 3 (0x2) Serial Number: 80:4b:f5:ae:56:8a:64:1e Signature Algorithm: ED25519 Issuer: CN = 2001003000000005 Validity Not Before: May 1 00:00:00 2023 GMT Not After : Jun 1 00:00:00 2024 GMT Subject: CN = 2001003000000005 Subject Public Key Info: Public Key Algorithm: ED25519 ED25519 Public-Key: pub: d6:02:68:e6:cf:64:ad:69:3e:5b:b0:55:d7:c6:e4: 8c:7e:d0:70:13:60:9e:6e:d0:2b:b9:35:b3:d6:ac: f5:3e X509v3 extensions: X509v3 Subject Key Identifier: 20:01:00:30:00:00:00:05:2A:EB:9A:DC:1C:E8:B1:EC X509v3 Authority Key Identifier: 20:01:00:30:00:00:00:05:2A:EB:9A:DC:1C:E8:B1:EC X509v3 Basic Constraints: critical CA:TRUE X509v3 Key Usage: critical Certificate Sign Signature Algorithm: ED25519 Signature Value: 07:c8:78:15:23:15:de:da:9b:01:f1:6c:bb:c9:ed:95:8e:91: 20:5e:d7:ee:29:16:cf:32:9b:d8:8a:31:11:78:d7:2d:5f:44: d4:aa:4d:1b:45:8f:e7:bd:9a:2b:66:a3:d4:1d:42:08:4e:57: 1a:9b:8c:9b:5b:38:a6:fa:5e:0a Moskowitz & Card Expires 11 January 2024 [Page 31] Internet-Draft DRIP DKI July 2023 rra16376.cert.pem (der is 331 bytes) -----BEGIN CERTIFICATE----- MIIBRzCB+qADAgECAgkAtub1kRGFxHgwBQYDK2VwMBsxGTAXBgNVBAMMEDIwMDEw MDMwMDAwMDAwMDUwHhcNMjMwNTE1MDAwMDAwWhcNMjQwNTI0MDAwMDAwWjAbMRkw FwYDVQQDDBAyMDAxMDAzZmZlMDAwMDA1MCowBQYDK2VwAyEA335kzBv9y2WDVDez e2EQ1W/tuBRD9Y1T34CU4OKCjSOjWzBZMBkGA1UdDgQSBBAgAQA//gAABflwpNf9 DhSlMBsGA1UdIwQUMBKAECABADAAAAAFKuua3BzosewwDwYDVR0TAQH/BAUwAwEB /zAOBgNVHQ8BAf8EBAMCAgQwBQYDK2VwA0EAqw9AheCVGyvi3/qp9QOdV+xQcKFM 7jRX1+3uWR7FUoVZez2QX/dueYELScLqbHE7bK1KfAgavrD1YZZE2gJRCw== -----END CERTIFICATE----- Certificate: Data: Version: 3 (0x2) Serial Number: b6:e6:f5:91:11:85:c4:78 Signature Algorithm: ED25519 Issuer: CN = 2001003000000005 Validity Not Before: May 15 00:00:00 2023 GMT Not After : May 24 00:00:00 2024 GMT Subject: CN = 2001003ffe000005 Subject Public Key Info: Public Key Algorithm: ED25519 ED25519 Public-Key: pub: df:7e:64:cc:1b:fd:cb:65:83:54:37:b3:7b:61:10: d5:6f:ed:b8:14:43:f5:8d:53:df:80:94:e0:e2:82: 8d:23 X509v3 extensions: X509v3 Subject Key Identifier: 20:01:00:3F:FE:00:00:05:F9:70:A4:D7:FD:0E:14:A5 X509v3 Authority Key Identifier: 20:01:00:30:00:00:00:05:2A:EB:9A:DC:1C:E8:B1:EC X509v3 Basic Constraints: critical CA:TRUE X509v3 Key Usage: critical Certificate Sign Signature Algorithm: ED25519 Signature Value: ab:0f:40:85:e0:95:1b:2b:e2:df:fa:a9:f5:03:9d:57:ec:50: 70:a1:4c:ee:34:57:d7:ed:ee:59:1e:c5:52:85:59:7b:3d:90: 5f:f7:6e:79:81:0b:49:c2:ea:6c:71:3b:6c:ad:4a:7c:08:1a: be:b0:f5:61:96:44:da:02:51:0b Moskowitz & Card Expires 11 January 2024 [Page 32] Internet-Draft DRIP DKI July 2023 Authentication hda16376-16376.cert.pem (der is 331 bytes) -----BEGIN CERTIFICATE----- MIIBRzCB+qADAgECAgkAvmZjQZW1SFcwBQYDK2VwMBsxGTAXBgNVBAMMEDIwMDEw MDNmZmUwMDAwMDUwHhcNMjMwNTIxMDAwMDAwWhcNMjQwNTIxMDAwMDAwWjAbMRkw FwYDVQQDDBAyMDAxMDAzZmZlM2ZmODA1MCowBQYDK2VwAyEA6PbZH31TUUhUcUIK nH1d8YDHox24bMk3WB7oEG8Y5OujWzBZMBkGA1UdDgQSBBAgAQA//j/4BegFqY+d 8V4tMBsGA1UdIwQUMBKAECABAD/+AAAF+XCk1/0OFKUwDwYDVR0TAQH/BAUwAwEB /zAOBgNVHQ8BAf8EBAMCAgQwBQYDK2VwA0EAGUPOy6K8XxT6QaguvdTVxhHba2Ws MEzF/oeyi8V1DNaH5wrLDgQLng7RrQfXpkUbI9l7GBq8+nr4jKkqcIxvDA== -----END CERTIFICATE----- Certificate: Data: Version: 3 (0x2) Serial Number: be:66:63:41:95:b5:48:57 Signature Algorithm: ED25519 Issuer: CN = 2001003ffe000005 Validity Not Before: May 21 00:00:00 2023 GMT Not After : May 21 00:00:00 2024 GMT Subject: CN = 2001003ffe3ff805 Subject Public Key Info: Public Key Algorithm: ED25519 ED25519 Public-Key: pub: e8:f6:d9:1f:7d:53:51:48:54:71:42:0a:9c:7d:5d: f1:80:c7:a3:1d:b8:6c:c9:37:58:1e:e8:10:6f:18: e4:eb X509v3 extensions: X509v3 Subject Key Identifier: 20:01:00:3F:FE:3F:F8:05:E8:05:A9:8F:9D:F1:5E:2D X509v3 Authority Key Identifier: 20:01:00:3F:FE:00:00:05:F9:70:A4:D7:FD:0E:14:A5 X509v3 Basic Constraints: critical CA:TRUE X509v3 Key Usage: critical Certificate Sign Signature Algorithm: ED25519 Signature Value: 19:43:ce:cb:a2:bc:5f:14:fa:41:a8:2e:bd:d4:d5:c6:11:db: 6b:65:ac:30:4c:c5:fe:87:b2:8b:c5:75:0c:d6:87:e7:0a:cb: 0e:04:0b:9e:0e:d1:ad:07:d7:a6:45:1b:23:d9:7b:18:1a:bc: fa:7a:f8:8c:a9:2a:70:8c:6f:0c Moskowitz & Card Expires 11 January 2024 [Page 33] Internet-Draft DRIP DKI July 2023 Issuing hda16376-16376.cert.pem (der is 332 bytes) -----BEGIN CERTIFICATE----- MIIBSDCB+6ADAgECAgkAtkOsgzdFgMwwBQYDK2VwMBsxGTAXBgNVBAMMEDIwMDEw MDNmZmUzZmY4MDUwHhcNMjMwNTE0MDAwMDAwWhcNMjQwNTE0MDAwMDAwWjAcMRow GAYDVQQDDBEyMDAxMDAzZmZlM2ZmODA1STAqMAUGAytlcAMhAGXya8AbiTmPeHxH heTn9uAfKZMTd1mZXXuqcnkaRKxdo1swWTAZBgNVHQ4EEgQQIAEAP/4/+AWbDihg 6wus3jAbBgNVHSMEFDASgBAgAQA//j/4BegFqY+d8V4tMA8GA1UdEwEB/wQFMAMB Af8wDgYDVR0PAQH/BAQDAgIEMAUGAytlcANBAJo6Va29k8nYIUvHqnQJlwGHHz0u gXgvaQuAt6f66T4eTX5zqG/ARy2MzDVlO0H/ojzWi3qiyAHjATcYRxMqzw8= -----END CERTIFICATE----- Certificate: Data: Version: 3 (0x2) Serial Number: b6:43:ac:83:37:45:80:cc Signature Algorithm: ED25519 Issuer: CN = 2001003ffe3ff805 Validity Not Before: May 14 00:00:00 2023 GMT Not After : May 14 00:00:00 2024 GMT Subject: CN = 2001003ffe3ff805I Subject Public Key Info: Public Key Algorithm: ED25519 ED25519 Public-Key: pub: 65:f2:6b:c0:1b:89:39:8f:78:7c:47:85:e4:e7:f6: e0:1f:29:93:13:77:59:99:5d:7b:aa:72:79:1a:44: ac:5d X509v3 extensions: X509v3 Subject Key Identifier: 20:01:00:3F:FE:3F:F8:05:9B:0E:28:60:EB:0B:AC:DE X509v3 Authority Key Identifier: 20:01:00:3F:FE:3F:F8:05:E8:05:A9:8F:9D:F1:5E:2D X509v3 Basic Constraints: critical CA:TRUE X509v3 Key Usage: critical Certificate Sign Signature Algorithm: ED25519 Signature Value: 9a:3a:55:ad:bd:93:c9:d8:21:4b:c7:aa:74:09:97:01:87:1f: 3d:2e:81:78:2f:69:0b:80:b7:a7:fa:e9:3e:1e:4d:7e:73:a8: 6f:c0:47:2d:8c:cc:35:65:3b:41:ff:a2:3c:d6:8b:7a:a2:c8: 01:e3:01:37:18:47:13:2a:cf:0f Moskowitz & Card Expires 11 January 2024 [Page 34] Internet-Draft DRIP DKI July 2023 UA1-16376-16376 CSR Data: Version: 1 (0x0) Subject: Subject Public Key Info: Public Key Algorithm: ED25519 ED25519 Public-Key: pub: bf:04:53:a0:11:20:ed:8e:65:1a:e9:f6:95:1a:82: 78:3d:a8:20:29:6a:33:8e:ff:d5:4a:0b:a8:46:a9: 98:75 Attributes: Requested Extensions: X509v3 Subject Alternative Name: critical IP Address:2001:3F:FE3F:F805:A93E:53B7:2709:E0BA Signature Algorithm: ED25519 Signature Value: e5:36:03:fa:3c:7b:c7:a8:03:4e:6e:37:37:de:79:7d:c3:d4: 01:43:a4:62:4d:91:ec:e5:20:0e:7f:6e:2f:f2:44:02:3a:b8: b8:3f:1f:60:a8:e9:02:40:cc:e0:73:70:1c:2c:c5:1a:12:21: ff:a8:f8:d0:07:a8:47:29:fd:05 UA1-16376-16376.cert.pem (der is 335 bytes) -----BEGIN CERTIFICATE----- MIIBSzCB/qADAgECAgkAnwfIckSSf74wBQYDK2VwMBwxGjAYBgNVBAMMETIwMDEw MDNmZmUzZmY4MDVJMB4XDTIzMDUyMTAwMDAwMFoXDTIzMDUyNDAwMDAwMFowADAq MAUGAytlcAMhAL8EU6ARIO2OZRrp9pUagng9qCApajOO/9VKC6hGqZh1o3kwdzAJ BgNVHRMEAjAAMA4GA1UdDwEB/wQEAwIDyDAdBgNVHSUEFjAUBggrBgEFBQcDAgYI KwYBBQUHAwQwHgYDVR0RAQH/BBQwEocQIAEAP/4/+AWpPlO3JwngujAbBgNVHSME FDASgBAgAQA//j/4BZsOKGDrC6zeMAUGAytlcANBAL0ztu4wCQZFH7V/gfKnK5fP HqUXxYzA4stvb4k1DMEHgum8NesVnlOhZ3OPpUet6GrnjIKd8SksbADW1h+hcwI= -----END CERTIFICATE----- Certificate: Data: Version: 3 (0x2) Serial Number: 9f:07:c8:72:44:92:7f:be Signature Algorithm: ED25519 Issuer: CN = 2001003ffe3ff805I Validity Not Before: May 21 00:00:00 2023 GMT Not After : May 24 00:00:00 2023 GMT Subject: Subject Public Key Info: Public Key Algorithm: ED25519 Moskowitz & Card Expires 11 January 2024 [Page 35] Internet-Draft DRIP DKI July 2023 ED25519 Public-Key: pub: bf:04:53:a0:11:20:ed:8e:65:1a:e9:f6:95:1a:82: 78:3d:a8:20:29:6a:33:8e:ff:d5:4a:0b:a8:46:a9: 98:75 X509v3 extensions: X509v3 Basic Constraints: CA:FALSE X509v3 Key Usage: critical Digital Signature, Non Repudiation, Key Agreement X509v3 Extended Key Usage: TLS Web Client Authentication, E-mail Protection X509v3 Subject Alternative Name: critical IP Address:2001:3F:FE3F:F805:A93E:53B7:2709:E0BA X509v3 Authority Key Identifier: 20:01:00:3F:FE:3F:F8:05:9B:0E:28:60:EB:0B:AC:DE Signature Algorithm: ED25519 Signature Value: bd:33:b6:ee:30:09:06:45:1f:b5:7f:81:f2:a7:2b:97:cf:1e: a5:17:c5:8c:c0:e2:cb:6f:6f:89:35:0c:c1:07:82:e9:bc:35: eb:15:9e:53:a1:67:73:8f:a5:47:ad:e8:6a:e7:8c:82:9d:f1: 29:2c:6c:00:d6:d6:1f:a1:73:02 B.2.1. openSSL config file The following openssl-conf file was used to create the above certificates. It is dependent on a number of environment variables to make each unique certificate. The conf file is a bit of a hack of multiple conf files and some sections are really not used. It is included here as a guide. # OpenSSL DRIP X.509 configuration file. # Copy to `$dir/openssl-root.cnf`. [ ca ] # `man ca` default_ca = CA_default [ CA_default ] # Directory and file locations. dir = $ENV::dir cadir = $ENV::cadir format = $ENV::format signcert = $ENV::signcert certkeyusage = $ENV::certkeyusage certextkeyusage = $ENV::certextkeyusage basicConstraints = $ENV::basicConstraints Moskowitz & Card Expires 11 January 2024 [Page 36] Internet-Draft DRIP DKI July 2023 certs = $dir/certs crl_dir = $dir/crl new_certs_dir = $dir/newcerts database = $dir/index.txt serial = $dir/serial RANDFILE = $dir/private/.rand # The signing key and signing certificate. private_key = $cadir/private/$signcert.key.$format certificate = $cadir/certs/$signcert.cert.$format # For certificate revocation lists. crlnumber = $dir/crlnumber crl = $dir/crl/ca.crl.pem crl_extensions = crl_ext default_crl_days = 30 # SHA-1 is deprecated, so use SHA-2 instead. default_md = sha256 name_opt = ca_default cert_opt = ca_default default_startdate = $ENV::startdate default_enddate = $ENV::enddate preserve = no policy = policy_loose copy_extensions = copy [ policy_loose ] # Allow the intermediate CA to sign a more # diverse range of certificates. # See the POLICY FORMAT section of the `ca` man page. countryName = optional stateOrProvinceName = optional localityName = optional organizationName = optional organizationalUnitName = optional commonName = optional [ req ] # Options for the `req` tool (`man req`). distinguished_name = req_distinguished_name string_mask = utf8only req_extensions = req_ext default_crl_days = 30 # SHA-1 is deprecated, so use SHA-2 instead. default_md = sha256 Moskowitz & Card Expires 11 January 2024 [Page 37] Internet-Draft DRIP DKI July 2023 # Extension to add when the -x509 option is used. x509_extensions = v3_ca [ req_distinguished_name ] # See . #countryName = Country Name (2 letter code) #stateOrProvinceName = State or Province Name #localityName = Locality Name #0.organizationName = Organization Name #organizationalUnitName = Organizational Unit Name commonName = Common Name [ req_ext ] basicConstraints = $ENV::basicConstraints keyUsage = $ENV::certkeyusage [ v3_ca ] # Extensions for a typical CA (`man x509v3_config`). subjectKeyIdentifier = $ENV::DET authorityKeyIdentifier = keyid:always basicConstraints = critical, CA:true keyUsage = $ENV::certkeyusage [ usr_cert ] # Extensions for client certificates (`man x509v3_config`). basicConstraints = $ENV::basicConstraints authorityKeyIdentifier = keyid:always keyUsage = $ENV::certkeyusage extendedKeyUsage = $ENV::certextkeyusage # uncomment the following if the ENV variables set # crlDistributionPoints = $ENV::crlDP # authorityInfoAccess = $ENV::ocspIAI [ usr_req ] # Extensions for client certificates (`man x509v3_config`). subjectAltName = critical, $ENV::subjectAltName [ crl_ext ] # Extension for CRLs (`man x509v3_config`). authorityKeyIdentifier=keyid:always [ ocsp ] # Extension for OCSP signing certificates (`man ocsp`). basicConstraints = CA:FALSE subjectKeyIdentifier = hash authorityKeyIdentifier = keyid,issuer # keyUsage = critical, digitalSignature keyUsage = $ENV::certkeyusage Moskowitz & Card Expires 11 January 2024 [Page 38] Internet-Draft DRIP DKI July 2023 # extendedKeyUsage = critical, OCSPSigning extendedkeyUsage = $ENV::certextkeyusage Acknowledgments Many people assisted in creating the python scripts for making DETs and DRIP Endorsements. Any roughness in the scripts is all my doing. The openssl-user mailing list provided needed help in getting openssl command line to do what was needed to build the test PKI. Authors' Addresses Robert Moskowitz HTT Consulting Oak Park, MI 48237 United States of America Email: rgm@labs.htt-consult.com Stuart W. Card AX Enterprize, LLC 4947 Commercial Drive Yorkville, NY 13495 United States of America Email: stu.card@axenterprize.com Moskowitz & Card Expires 11 January 2024 [Page 39]