Anything that will clarify this to someone not versed in the field will help.
Thanks --Avshalom From: Hugo Krawczyk <[email protected]> To: Avshalom Houri/Haifa/i...@ibmil Cc: [email protected], General Area Review Team <[email protected]>, Russ Housley <[email protected]>, Tim Polk <[email protected]> Date: 02/03/2010 11:04 PM Subject: Re: Gen art LC+TC review of: draft-krawczyk-hkdf-01 Sent by: [email protected] I have no problem removing the lines PRK = HKDF-Extract(salt, IKM) and OKM = HKDF-Expand(PRK, info, L) which are intended as logical functions rather than an actual specification. As for the parameter "Hash", this value (which describes a hash function, e.g. SHA-256) must be given since HMAC is not defined without it. Since this parameter is mandatory, maybe it should not be listed under "Options". In any case, Pasi is better qualified than me to decide on these presentational issues. Hugo On Tue, Mar 2, 2010 at 2:53 PM, Avshalom Houri <[email protected]> wrote: I have been selected as the General Area Review Team (Gen-ART) reviewer for this draft (for background on Gen-ART, please see http://www.alvestrand.no/ietf/gen/art/gen-art-FAQ.html). Please wait for direction from your document shepherd or AD before posting a new version of the draft. Document: draft-krawczyk-hkdf-01 Reviewer: Avshalom Houri Review Date: 2010-03-02 IESG last call date: 2010-03-02 ? IESG telechat date: 2010-03-04 Summary: The document is ready for publication as an information RFC (see editorial). The document is a a reasonable contribution to the area of Internet engineering which is covers. Major issues: None Minor issues: None Nits/editorial comments: Section 2.2 Step1 :Extract It is not easy to understand the way that the functions are defined. For example what is the relationship between: PRK = HKDF-Extract(salt, IKM) and PRK = HMAC-Hash(salt, IKM) Why Hash is an option? Thanks --Avshalom
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