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authorAlexander Barton <alex@barton.de>2013-09-15 15:09:36 +0200
committerAlexander Barton <alex@barton.de>2013-09-15 15:09:36 +0200
commit84ed46d4c1caaa4ec79a6223c35785afcf1c9d53 (patch)
treea6b11f96be8dfd6e0fd7a02b648bd1929f3ec3b5 /man/ngircd.conf.5.tmpl
parent849f85a05c17828c592bed26bd99707f211fad1c (diff)
downloadngircd-84ed46d4c1caaa4ec79a6223c35785afcf1c9d53.tar.gz
ngircd-84ed46d4c1caaa4ec79a6223c35785afcf1c9d53.zip
Cipher list selection for OpenSSL
This patch introduces the possibility to arbitrarily select ciphers which
should be promoted resp. declined when establishing a SSL connection
with a client by implementing the new configuration option "CipherList".

By default, OpenSSL would accept low and medium strength and RC-4 ciphers,
which nowadays are known to be broken.

This patch only implements the feature for OpenSSL. A GnuTLS counterpart
has to be implemented in another patch ...

Original patch by Bastian <bastian-ngircd@t6l.de>.

Closes bug #162.
Diffstat (limited to 'man/ngircd.conf.5.tmpl')
-rw-r--r--man/ngircd.conf.5.tmpl7
1 files changed, 7 insertions, 0 deletions
diff --git a/man/ngircd.conf.5.tmpl b/man/ngircd.conf.5.tmpl
index cf926f9a..263dec04 100644
--- a/man/ngircd.conf.5.tmpl
+++ b/man/ngircd.conf.5.tmpl
@@ -366,6 +366,13 @@ when it is compiled with support for SSL using OpenSSL or GnuTLS!
 \fBCertFile\fR (string)
 SSL Certificate file of the private server key.
 .TP
+\fBCipherList\fR (string)
+OpenSSL only: Select cipher suites allowed for SSL/TLS connections. This
+defaults to the empty string, so all supported ciphers are allowed. Please see
+'man 1ssl ciphers' for details. This setting allows only "high strength" cipher
+suites, disables the ones without authentication, and sorts by strength, for
+example: "HIGH:!aNULL:@STRENGTH".
+.TP
 \fBDHFile\fR (string)
 Name of the Diffie-Hellman Parameter file. Can be created with GnuTLS
 "certtool \-\-generate-dh-params" or "openssl dhparam". If this file is not