[Errata Verified] RFC3779 (6792)

The following errata report has been verified 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/eid6792

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Status: Verified
Type: Technical

Reported by: Theo Buehler <[email protected]>
Date Reported: 2021-12-21
Verified by: Benjamin Kaduk (IESG)

Section: Appendix B

Original Text
-------------
   30 3d                       Extension {
      06 08 2b06010505070107     extnID        1.3.6.1.5.5.7.1.7
      01 01 ff                   critical
      04 2e                      extnValue {
         30 2c                     IPAddrBlocks {
            30 10                    IPAddressFamily {
               04 03 0001 01           addressFamily: IPv4 Unicast
                                       IPAddressChoice
               30 09                     addressesOrRanges {
                                           IPAddressOrRange
                  03 02 00 0a                addressPrefix    10/8
                                           IPAddressOrRange
                  03 03 04 b010              addressPrefix    172.16/12
                                         } -- addressesOrRanges
                                     } -- IPAddressFamily
            30 07                    IPAddressFamily {
               04 03 0001 02           addressFamily: IPv4 Multicast
                                       IPAddressChoice
               05 00                     inherit from issuer
                                     } -- IPAddressFamily
            30 0f                    IPAddressFamily {
               04 02 0002              addressFamily: IPv6
                                       IPAddressChoice
               30 09                     addressesOrRanges {
                                           IPAddressOrRange
                  03 07 00 200100000002      addressPrefix   2001:0:2/47
                                         } -- addressesOrRanges
                                     } -- IPAddressFamily
                                   } -- IPAddrBlocks
                                 } -- extnValue
                                  } -- Extension

Corrected Text
--------------
   30 3d                       Extension {
      06 08 2b06010505070107     extnID        1.3.6.1.5.5.7.1.7
      01 01 ff                   critical
      04 2e                      extnValue {
         30 2c                     IPAddrBlocks {
            30 10                    IPAddressFamily {
               04 03 0001 01           addressFamily: IPv4 Unicast
                                       IPAddressChoice
               30 09                     addressesOrRanges {
                                           IPAddressOrRange
                  03 02 00 0a                addressPrefix    10/8
                                           IPAddressOrRange
                  03 03 04 ac10              addressPrefix    172.16/12
                                         } -- addressesOrRanges
                                     } -- IPAddressFamily
            30 07                    IPAddressFamily {
               04 03 0001 02           addressFamily: IPv4 Multicast
                                       IPAddressChoice
               05 00                     inherit from issuer
                                     } -- IPAddressFamily
            30 0f                    IPAddressFamily {
               04 02 0002              addressFamily: IPv6
                                       IPAddressChoice
               30 09                     addressesOrRanges {
                                           IPAddressOrRange
                  03 07 00 200100000002      addressPrefix   2001:0:2/48
                                         } -- addressesOrRanges
                                     } -- IPAddressFamily
                                   } -- IPAddrBlocks
                                 } -- extnValue
                                  } -- Extension

Notes
-----
b010 represents 176.16/12, the hex representation of 172 is ac, so it should be ac10.

The IPv6 addressPrefix in question is 2001:0:2/48, not 2001:0:2/47, as explained in the text before the example.

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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