Re: [pkix] [Technical Errata Reported] RFC3029 (6444)
Russ Housley <housley@vigilsec.com> Sat, 27 February 2021 07:45 UTC
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From: Russ Housley <housley@vigilsec.com>
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Date: Sat, 27 Feb 2021 02:45:12 -0500
Cc: Carlisle Adams <cadams@site.uottawa.ca>, Stefan Santesson <stefan@aaa-sec.com>, IETF PKIX <pkix@ietf.org>
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To: "Roman D. Danyliw" <rdd@cert.org>, Ben Kaduk <kaduk@mit.edu>
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Subject: Re: [pkix] [Technical Errata Reported] RFC3029 (6444)
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I guess I should have held off on reporting this ASN.1 error. Once I corrected it, I discovered two errors that I do not know how to fix. There is an implementation somewhere because Appendix F contains examples. I do not know how the implementer got around these two problems. PROBLEM 1: CertEtcToken ::= CHOICE { certificate [0] IMPLICIT Certificate , esscertid [1] ESSCertId , pkistatus [2] IMPLICIT PKIStatusInfo , assertion [3] ContentInfo , crl [4] IMPLICIT CertificateList, ocspcertstatus [5] IMPLICIT CertStatus, oscpcertid [6] IMPLICIT CertId , oscpresponse [7] IMPLICIT OCSPResponse, capabilities [8] SMIMECapabilities, extension Extension{{ExtensionSet}} } CertEtcToken is a CHOICE with tags 0 through 8, but CertStatus CHOICE with tags 0 through 2. You cannot nest a CHOICE in another CHOICE is the IMPLICIT tags overlap. The use of EXPLICIT tagging would have solved the problem, but the authors clearly preferred IMPLICIT tags. PROBLEM 2 DigestInfo ::= SEQUENCE { digestAlgorithm DigestAlgorithmIdentifier, digest Digest } Data ::= CHOICE { message OCTET STRING , messageImprint DigestInfo, certs SEQUENCE SIZE (1..MAX) OF TargetEtcChain } DigestInfo is a SEQUENCE, and certs is a SEQUENCE, so the two have the same tag. A recipient cannot tell which one the sender intended. Russ > On Feb 26, 2021, at 3:54 PM, RFC Errata System <rfc-editor@rfc-editor.org> wrote: > > The following errata report has been submitted for RFC3029, > "Internet X.509 Public Key Infrastructure Data Validation and Certification Server Protocols". > > -------------------------------------- > You may review the report below and at: > https://www.rfc-editor.org/errata/eid6444 > > -------------------------------------- > Type: Technical > Reported by: Russ Housley <housley@vigilsec.com> > > Section: Appendix E > > Original Text > ------------- > GeneralName, PolicyInformation > FROM PKIX1Implicit88 {iso(1) identified-organization(3) > dod(6) internet(1) security(5) mechanisms(5) pkix(7) > id-mod(0) id-pkix1-implicit-88(2)} > > Corrected Text > -------------- > GeneralName, GeneralNames, PolicyInformation > FROM PKIX1Implicit88 {iso(1) identified-organization(3) > dod(6) internet(1) security(5) mechanisms(5) pkix(7) > id-mod(0) id-pkix1-implicit-88(2)} > > Notes > ----- > The ASN.1 Module uses GeneralName and GeneralNames, but only one of them is IMPORTed. The suggested fix IMPORTS both of GeneralName and GeneralNames. > > Instructions: > ------------- > This erratum is currently posted as "Reported". If necessary, please > use "Reply All" to discuss whether it should be verified or > rejected. When a decision is reached, the verifying party > can log in to change the status and edit the report, if necessary. > > -------------------------------------- > RFC3029 (draft-ietf-pkix-dcs-07) > -------------------------------------- > Title : Internet X.509 Public Key Infrastructure Data Validation and Certification Server Protocols > Publication Date : February 2001 > Author(s) : C. Adams, P. Sylvester, M. Zolotarev, R. Zuccherato > Category : EXPERIMENTAL > Source : Public-Key Infrastructure (X.509) > Area : Security > Stream : IETF > Verifying Party : IESG
- [pkix] [Technical Errata Reported] RFC3029 (6444) RFC Errata System
- Re: [pkix] [Technical Errata Reported] RFC3029 (6… Russ Housley
- Re: [pkix] [Technical Errata Reported] RFC3029 (6… Erwann Abalea
- Re: [pkix] [Technical Errata Reported] RFC3029 (6… Stefan Santesson
- Re: [pkix] [Technical Errata Reported] RFC3029 (6… Russ Housley
- Re: [pkix] [Technical Errata Reported] RFC3029 (6… Carlisle Adams
- Re: [pkix] [Technical Errata Reported] RFC3029 (6… Russ Housley
- Re: [pkix] [Technical Errata Reported] RFC3029 (6… Stefan Santesson
- Re: [pkix] [Technical Errata Reported] RFC3029 (6… Russ Housley
- Re: [pkix] [Technical Errata Reported] RFC3029 (6… Stefan Santesson
- Re: [pkix] [Technical Errata Reported] RFC3029 (6… Carl Wallace
- Re: [pkix] [Technical Errata Reported] RFC3029 (6… Carl Wallace
- Re: [pkix] [Technical Errata Reported] RFC3029 (6… Peter Gutmann
- Re: [pkix] [Technical Errata Reported] RFC3029 (6… Russ Housley