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Re: [lamps] dtaft-ietf-lamps-cmp-updates and rsaKeyLen

Russ Housley <housley@vigilsec.com> Wed, 16 September 2020 13:15 UTC

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From: Russ Housley <housley@vigilsec.com>
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Date: Wed, 16 Sep 2020 09:15:16 -0400
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To: Tomas Gustavsson <tomas.gustavsson@primekey.com>
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Subject: Re: [lamps] dtaft-ietf-lamps-cmp-updates and rsaKeyLen
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Good point. Probably should cover RSA-OAEP too.

Russ

> On Sep 16, 2020, at 1:37 AM, Tomas Gustavsson <tomas.gustavsson@primekey.com> wrote:
> 
> 
> How about if the oid is RSA-PSS? We've started seing such OIDs lately
> (mostly by mistake).
> 
> Regards,
> Tomas
> 
> On 2020-09-15 23:20, Russ Housley wrote:
>> Hendrik:
>> 
>> The ASN.1 modules add rsaKeyLen, but the body of the document does not say anything.  I think it should explain the new field.
>> 
>> The ASN.1 module comment is the only hint right now:
>> 
>>      -- Any reasonable RSA key length, if subjectPublicKeyInfo
>>      -- of the certTemplate has the OID rsaEncryption.
>> 
>> Also, if the certTemplate has the OID id-ecPublicKey, is a similar convention needed to provide a list of supported curves?
>> 
>> Russ
>> 
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