Use of the SEED Encryption Algorithm in Cryptographic Message Syntax (CMS)
draft-ietf-smime-cms-seed-02

Suggestion to the RFC Editor: draft-park-seed-01.txt is in IESG evaluation, and it makes sence to publish that document at the same time with an adjacent number.

[Ballot discuss]
Given that this document specifies the use of the SEED algorithm for various operations, a normative reference to a specification of SEED is needed.

[Ballot comment]
>    SEED is easily implemented in various software and hardware because
>    it is designed to increase the efficiency of memory storage and the
>    simplicity in generating keys without degrading the security of the
>    algorithm.

Not sure what "increase the efficiency of memory storage" is supposed
to mean. Later, I assume it is meant "takes less memory to implement
than other algorithms". Might be good to just say that.

>    Especially, it has been evaluated and also considered
>    cryptographically secure by trustworhty organizations such as ISO/IEC
>    JTC 1/SC 27 and Japan CRYTEC (Cryptography Reasearch and Evaluation
>    Comittees) [ISOSEED][CRYPTEC].

s/trustworthy// ? "trustworthy" is a value judgement; not clear this
sort of document should be using such words for describing organizations.

[Ballot comment]
CMS (and SEED?) should be expanded in the title.

The requirement level for this support is unclear.  The introduction indicates that this is an optional algorithm, but later the document says:

  If users require SEED for symmetric
  encryption, it MUST be supported by the S/MIME clients on both the
  sending and receiving side, and it MUST be set in the user
  preferences.

I don't think that this "MUST" should be uppercase.  I understand that both sides would need to support the algorithm in order for it to work, but I believe that implementation is optional.  Right?

[Ballot comment]
Given that this document specifies the use of the SEED algorithm for various operations, it seems a little odd that there is no normative reference to a specification of SEED. It also appears that draft-park-seed has expired.