[TLS] [Technical Errata Reported] RFC4492 (2389)

[RFC Errata System <[e-mail]>]

The following errata report has been submitted for RFC4492,
"Elliptic Curve Cryptography (ECC) Cipher Suites for Transport Layer Security (TLS)".

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You may review the report below and at:
http://www.rfc-editor.org/errata_search.php?rfc=4492&eid=2389

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Type: Technical
Reported by: Juho Vähä-Herttua <[e-mail]>

Section: 5.4

Original Text
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   point:   This is the byte string representation of an elliptic curve
      point following the conversion routine in Section 4.3.6 of ANSI
      X9.62 [7].  This byte string may represent an elliptic curve point
      in uncompressed or compressed format; it MUST conform to what the
      client has requested through a Supported Point Formats Extension
      if this extension was used.

        enum { ec_basis_trinomial, ec_basis_pentanomial } ECBasisType;

   ec_basis_trinomial:   Indicates representation of a characteristic-2
      field using a trinomial basis.

   ec_basis_pentanomial:   Indicates representation of a
      characteristic-2 field using a pentanomial basis.

Corrected Text
--------------
   point:   This is the byte string representation of an elliptic curve
      point following the conversion routine in Section 4.3.6 of ANSI
      X9.62 [7].  This byte string may represent an elliptic curve point
      in uncompressed or compressed format; it MUST conform to what the
      client has requested through a Supported Point Formats Extension
      if this extension was used.

        enum {
            ec_basis_trinomial(1), ec_basis_pentanomial(2),
            (255)
        } ECBasisType;

   ec_basis_trinomial:   Indicates representation of a characteristic-2
      field using a trinomial basis.

   ec_basis_pentanomial:   Indicates representation of a
      characteristic-2 field using a pentanomial basis.

Notes
-----
The ECBasisType enumeration is submitted as part of the ECParameters structure and therefore needs numerical values. It is common to assign numerical values starting from 1 to enums and maximum value of 255 should be enough, since currently there are only two known basis types and it is unlikely to change in the near future.

Instructions:
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RFC4492 (draft-ietf-tls-ecc-12)
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Title               : Elliptic Curve Cryptography (ECC) Cipher Suites for Transport Layer Security (TLS)
Publication Date    : May 2006
Author(s)           : S. Blake-Wilson, N. Bolyard, V. Gupta, C. Hawk, B. Moeller
Category            : INFORMATIONAL
Source              : Transport Layer Security
Area                : Security
Stream              : IETF
Verifying Party     : IESG