Re: [lamps] Renewing (short lived) certs with EST (RFC7030) [was: Re: Sean: Permissibility of expired cert renewal]

Sean Turner <> Thu, 30 August 2018 01:43 UTC

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From: Sean Turner <>
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Date: Wed, 29 Aug 2018 21:43:07 -0400
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To: Toerless Eckert <>
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Subject: Re: [lamps] Renewing (short lived) certs with EST (RFC7030) [was: Re: Sean: Permissibility of expired cert renewal]
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> On Jul 23, 2018, at 15:46, Toerless Eckert <> wrote:
>> I do not believe there is any prohibition against the use of expired or even revoked certificates for renew/rekey in the PKIX suite of RFCs.
> That wold be great.
>> The path validation algorithm in 5280 does consider whether the certificate is revoked/expired, but does hard fail on that status.
> But that would contradict your above statement, would it not ? With RFC7030
> 3.3.2 requiring RFC5280, it would have to fail for expired certificates. No ?

I mixed a couple up a couple of things here.  The path validation will return a fail if the certificate validity period does not include the current time.  Most applications I know of throw a warning and don’t hard fall on this, e.g., the signed message is still displayed to the user.