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Re: [Dcrup] draft-ietf-dcrup-dkim-crypto-00

"John Levine" <johnl@taugh.com> Fri, 19 May 2017 14:31 UTC

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Date: Fri, 19 May 2017 14:30:49 -0000
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From: John Levine <johnl@taugh.com>
To: dcrup@ietf.org
Cc: sklist@kitterman.com
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Archived-At: <https://mailarchive.ietf.org/arch/msg/dcrup/vlhzWlPmDwyqtwOjnIYb1oYI0pE>
Subject: Re: [Dcrup] draft-ietf-dcrup-dkim-crypto-00
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In article <B9568799-562D-467F-A9B6-683D5E8E7F58@kitterman.com> you write:
>
>
>On May 19, 2017 7:51:47 AM EDT, "Mark D. Baushke" <mdb@juniper.net> wrote:
>>Hi,
>>
>>I suggest that 2048 bit RSA be considered the minimum key size.
>>Smaller sizes are not really safe these days.
>
>2048 bit keys present operational problems in common DNS provisioning systems.  What advice
>should we offer those not currently able to publish a TXT record long enough for 2048?

Perhaps to read section 4 of the draft?

R's,
John

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