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Subject: Re: [dss-x] X.509 profile & SCVP


Hi Stefan,

I would consider this the 'attack of the zombie patents'. If a patent
applies for a 'Certificate revocation system' we got a problem with
validation anyway!

Greetings,

Andreas
> But, maybe first read on the potential IPR claims related to that
> document :-)
>
> https://datatracker.ietf.org/ipr/589/ from CoreStreet updates
> https://datatracker.ietf.org/ipr/563/ ibid all from 2005
> (the usual patent pending yes damocles sword ?)
>
> The patents listed are documented at:
> https://patents.google.com/patent/US5717758A/en
> https://patents.google.com/patent/US5717757A/en
> https://patents.google.com/patent/US5666416A/en
>

>
> All to me very broad ... anyway, I am on vacation, so hope this helps.
>
> All the best,
> Stefan.
>
> Am 26.07.18 um 12:30 schrieb Andreas Kuehne:
>> Hi colleagues,
>>
>>
>> there is the client request to support the validation of X.509
>> certificates by DSS-X. Technically this isn't a big deal as the
>> core interface will remain unchanged (treating the certificate as an
>> enveloped signature). The implementor's side should be an easy job, too.
>> As certificate validation is a major part of the signature validation. I
>> drafted a profile (see attached) just by using the existing elements of
>> the core. Comments welcome!
>>
>> This result has a big overlap with the SCVP (Serverside Certificate
>> Validation Protocol, RFC 5055) and I don't like to reinvent existing
>> wheels. But with DSS-X's multi-syntax binding the X.509 profile does
>> offer real added value compared to ASN.1-only SCVP. So I thought about
>> addressing the SCVP authors and ask for their view and hopefully some
>> contribution. Would this make sense?
>>
>>
>> Greetings,
>>
>>
>> Andreas
>>
>>
>>
>>
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>
>

-- 
Andreas Kühne 
phone: +49 177 293 24 97 
mailto: kuehne@trustable.de

Trustable Ltd. Niederlassung Deutschland Gartenheimstr. 39C - 30659 Hannover Amtsgericht Hannover HRB 212612

Director Andreas Kühne

Company UK Company No: 5218868 Registered in England and Wales 



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