Can we disable diffie-hellman-group-exchange-sha1 by default?

Darren Tucker dtucker at dtucker.net
Fri Feb 15 17:19:33 AEDT 2019


On Fri, 15 Feb 2019 at 16:45, Yegor Ievlev <koops1997 at gmail.com> wrote:
> That doesn't seem to be the case. See
> https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-57pt1r4.pdf
> (5.6.1 Comparable Algorithm Strengths)

For DH, the "Comparable strengths" table lists L=3072 for 128 bits and
L=7680 for 192 bits.  To me that puts 4k groups a bit above 128 bits
and well below 192 bits of security.   What are you referring to?

-- 
Darren Tucker (dtucker at dtucker.net)
GPG key 11EAA6FA / A86E 3E07 5B19 5880 E860  37F4 9357 ECEF 11EA A6FA (new)
    Good judgement comes with experience. Unfortunately, the experience
usually comes from bad judgement.


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