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authorJeremy Harris <jgh146exb@wizmail.org>2023-01-07 00:17:08 +0000
committerJeremy Harris <jgh146exb@wizmail.org>2023-01-07 16:00:19 +0000
commit42f1855e94bd87f98bc6c74255be53ed6d805ba6 (patch)
tree30a62215d6d5c52071748189ab32179b416415a6 /doc/doc-docbook
parent31c546c4d0c3baf1b1e0ab292b4d096cffe64c34 (diff)
OpenSSL: tls_eccurves list support. Bug 2955
Diffstat (limited to 'doc/doc-docbook')
-rw-r--r--doc/doc-docbook/spec.xfpt17
1 files changed, 11 insertions, 6 deletions
diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt
index 9243bd3f9..7c8dee36f 100644
--- a/doc/doc-docbook/spec.xfpt
+++ b/doc/doc-docbook/spec.xfpt
@@ -18454,20 +18454,25 @@ prior to the 4.80 release, as Debian used to patch Exim to raise the minimum
acceptable bound from 1024 to 2048.
-.option tls_eccurve main string&!! &`auto`&
+.option tls_eccurve main string list&!! &`auto`&
.cindex TLS "EC cryptography"
-This option selects a EC curve for use by Exim when used with OpenSSL.
+This option selects EC curves for use by Exim when used with OpenSSL.
It has no effect when Exim is used with GnuTLS.
-After expansion it must contain a valid EC curve parameter, such as
-&`prime256v1`&, &`secp384r1`&, or &`P-512`&. Consult your OpenSSL manual
-for valid selections.
+After expansion it must contain
+.new
+one or (only for OpenSSL versiona 1.1.1 onwards) more
+.wen
+EC curve names, such as &`prime256v1`&, &`secp384r1`&, or &`P-521`&.
+Consult your OpenSSL manual for valid curve names.
For OpenSSL versions before (and not including) 1.0.2, the string
&`auto`& selects &`prime256v1`&. For more recent OpenSSL versions
&`auto`& tells the library to choose.
-If the option expands to an empty string, no EC curves will be enabled.
+.new
+If the option expands to an empty string, the effect is undefined.
+.wen
.option tls_ocsp_file main string&!! unset