Microsoft missing public DNS TXT entry for DKIM records (msn.com)

John Levine johnl at iecc.com
Thu Apr 4 19:27:52 UTC 2024


It appears that Michael Thomas <mike at mtcc.com> said:
>verified and thus not denied. After, there were calls for providers to 
>publish their private keys on a regular basis but that went nowhere that 
>I've heard of.

$ host -t txt k2402._domainkey.gurus.org
k2402._domainkey.gurus.org descriptive text "v=DKIM1; h=sha256; p=MIIBIj... ; n=Signing=20key=20at=20https://www.iecc.com/dkimkeys/k2402 ;"

 That's probably not what's going on here -- maybe they 
>just botched a key rollover -- but it still amusing to me that we got 
>non-repudiation along for the ride [*].

Well, they could have gotten equally good non-repudiation by not signing at all.

R's,
John


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