On 2020-07-15 at 11:54 -0400, John Levine wrote: > In article <[email protected]> you > write: > >Exim has implemented a=ed25519-sha256 for some time, and verifies it. > >By mail volume that's not a lot, but by independent installs it counts a > >bit more. Support was added in Exim 4.91, released in April 2018 and > >does require a modern GnuTLS or OpenSSL. That last requirement cuts > >back the percentage of sites which might be able to verify. :-D > > Do you know what DKIM library it uses? I use the popular opendkim > which unfortunately hasn't been updated in 2015.
With my @exim.org hat on (so, er, "yes"): originally pdkim but the code was done as an import (contributed by the PDKIM author) and has been independently developed, so the Ed25519 support is AFAIK Exim-only. pdkim/README: -----------------------------8< cut here >8----------------------------- PDKIM - a RFC4871 (DKIM) implementation http://duncanthrax.net/pdkim/ Copyright (C) 2009 Tom Kistner <[email protected]> No longer includes code from the PolarSSL project. Copyright (C) 2016 Jeremy Harris <[email protected]> This copy of PDKIM is included with Exim. For a standalone distribution, visit http://duncanthrax.net/pdkim/. -----------------------------8< cut here >8----------------------------- The Ed25519 support was written by Jeremy Harris, both the OpenSSL and GnuTLS implementations. PDKIM uses PolarSSL. Both pdkim and Exim are GPLv2+. That README should probably get an updated year range since Jeremy's put a lot of work into it. -Phil _______________________________________________ mailop mailing list [email protected] https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop
