[Technical Errata Reported] RFC3779 (7653)

The following errata report has been submitted for RFC3779,
"X.509 Extensions for IP Addresses and AS Identifiers".

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You may review the report below and at:
https://www.rfc-editor.org/errata/eid7653

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Type: Technical
Reported by: Job Snijders <[email protected]>

Section: 3.2.3

Original Text
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Section 3.2.3.4:
Any contiguous series of AS identifiers MUST be combined into a single range
whenever possible.

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.

Corrected Text
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Section 3.2.3.4:
Any contiguous series of AS identifiers MUST be combined into a single range
or, whenever possible, represented as a single ASId.

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
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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.

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RFC3779 (draft-ietf-pkix-x509-ipaddr-as-extn-03)
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Title               : X.509 Extensions for IP Addresses and AS Identifiers
Publication Date    : June 2004
Author(s)           : C. Lynn, S. Kent, K. Seo
Category            : PROPOSED STANDARD
Source              : Public-Key Infrastructure (X.509)
Area                : Security
Stream              : IETF
Verifying Party     : IESG