diff options
| author | Phil Pennock <pdp@exim.org> | 2013-11-10 05:16:27 -0500 |
|---|---|---|
| committer | Phil Pennock <pdp@exim.org> | 2013-11-10 05:16:27 -0500 |
| commit | 167c587a5691aaf8fa04fbfad083fcdbe2277de6 (patch) | |
| tree | 435a131d9706ef24ed6c8f012820dc61dfeb49d4 | |
| parent | 89b68021dc688d91f57e0e20432477a57bfcf5ec (diff) | |
spec: TLS certificates: avoid MD5
Make it clearer in the spec, where talking about certificates, that MD5
in certs is a really Quite Bad idea.
| -rw-r--r-- | doc/doc-docbook/spec.xfpt | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt index 614259a5d..4b9f53ed1 100644 --- a/doc/doc-docbook/spec.xfpt +++ b/doc/doc-docbook/spec.xfpt @@ -26057,6 +26057,12 @@ validation to succeed, of course, but if it's not preinstalled, sending the root certificate along with the rest makes it available for the user to install if the receiving end is a client MUA that can interact with a user. +Note that certificates using MD5 are unlikely to work on today's Internet; +even if your libraries allow loading them for use in Exim when acting as a +server, increasingly clients will not accept such certificates. The error +diagnostics in such a case can be frustratingly vague. + + .section "Self-signed certificates" "SECID187" .cindex "certificate" "self-signed" |