Re: [Cfrg] draft-mcgrew-hash-sigs question on the definition of one time
Russ Housley <housley@vigilsec.com> Sun, 29 April 2018 20:26 UTC
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From: Russ Housley <housley@vigilsec.com>
In-Reply-To: <03b701d3dff7$03f9b910$0bed2b30$@augustcellars.com>
Date: Sun, 29 Apr 2018 16:26:33 -0400
Cc: draft-mcgrew-hash-sigs@ietf.org, cfrg@ietf.org
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To: Jim Schaad <ietf@augustcellars.com>
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Subject: Re: [Cfrg] draft-mcgrew-hash-sigs question on the definition of one time
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Jim: It can be use zero or one time. Russ > On Apr 29, 2018, at 4:16 PM, Jim Schaad <ietf@augustcellars.com> wrote: > > I am doing a quick review of a draft dealing with LM-OTS One-Time signatures > and I have run into a problem. Either my definition of one time is wrong or > there appears to be an error in the draft. Before trying to do a deep read > of this document I would like to get a clarification. > > The last sentence of paragraph 1 of section 4 says > > These are one-time signatures; each private key MUST be used at most one > time to sign any given message. > > Is this "at most one time to sign" or "at most one time to sign a given > message". That is don't re-sign the same message but a new message (for > some definition of new) is ok. > > Jim > > > _______________________________________________ > Cfrg mailing list > Cfrg@irtf.org > https://www.irtf.org/mailman/listinfo/cfrg