RFC 3779, "X.509 Extensions for IP Addresses and AS Identifiers", June 2004

Errata ID: 7653
Status: Held for Document Update
Type: Technical
Publication Format(s) : TEXT
Reported By: Job Snijders
Date Reported: 2023-09-22
Held for Document Update by: Paul Wouters
Date Held: 2024-01-12

Section 3.2.3 says:

Section 3.2.3.8:
The ASRange type is a SEQUENCE consisting of a min and a max element,
and is used to specify a range of AS identifier values.

It should say:

Section 3.2.3.8:
The ASRange type is a SEQUENCE consisting of a min and a max element,
and is used to specify a range of AS identifier values. The min and max
elements MUST specify two distinct AS identifiers.

Notes:

The introduction in section 1 stresses that the objective of the encoding rules in section 2 and section 3
is to produce unique encoding and minimal size encoding of the information.

Allowing ASRanges where the minimum value is the same as the maximum value clearly violates the
objective of specifying a canonical form (in order to produce a unique representation); however the
specification as-is doesn't forbid min & max to be the same value. The corrected text addresses this.

Note: erratum edited per https://mailarchive.ietf.org/arch/msg/pkix/iZnCd58xgl1C47GSeFemAU9CF1g/

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