AFAICS, we don't have a default cipher suite but depend on openssl's default.

Document the fact that this default depends on the openssl version.
Recommend !aNULL over !ADH, because the former also excludes !AECDH in openssl
1.0+

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1135241 13f79535-47bb-0310-9956-ffa450edef68

diff --git a/docs/manual/mod/mod_ssl.xml b/docs/manual/mod/mod_ssl.xml
index b86528d30d49aee90d39ebc33fa120e34d376421..43d36259090d9209c274843a978587cea92a17eb 100644 (file)
--- a/docs/manual/mod/mod_ssl.xml
+++ b/docs/manual/mod/mod_ssl.xml
@@ -614,7 +614,7 @@ SSLProtocol all -SSLv2
 <description>Cipher Suite available for negotiation in SSL 
 handshake</description>
 <syntax>SSLCipherSuite <em>cipher-spec</em></syntax>
-<default>SSLCipherSuite ALL:!ADH:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP</default>
+<default>SSLCipherSuite DEFAULT (depends on OpenSSL version)</default>
 <contextlist><context>server config</context>
 <context>virtual host</context>
 <context>directory</context>
@@ -711,9 +711,10 @@ prefixes are:</p>
 <p>A simpler way to look at all of this is to use the ``<code>openssl ciphers
 -v</code>'' command which provides a nice way to successively create the
 correct <em>cipher-spec</em> string. The default <em>cipher-spec</em> string
-is ``<code>ALL:!ADH:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP</code>'' which
+depends on the version of the OpenSSL libraries used. Let's suppose it is
+``<code>ALL:!aNULL:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP</code>'' which
 means the following: first, remove from consideration any ciphers that do not
-authenticate, i.e. for SSL only the Anonymous Diffie-Hellman ciphers. Next,
+authenticate, i.e. for SSL the Anonymous Diffie-Hellman ciphers. Next,
 use ciphers using RC4 and RSA. Next include the high, medium and then the low
 security ciphers. Finally <em>pull</em> all SSLv2 and export ciphers to the
 end of the list.</p>

diff --git a/docs/manual/ssl/ssl_howto.xml b/docs/manual/ssl/ssl_howto.xml
index 6a214e231c7ccbf5591221e57b81e50abb12ee01..9c787f87a017f8bcfcd47c2711a559348a4f554f 100644 (file)
--- a/docs/manual/ssl/ssl_howto.xml
+++ b/docs/manual/ssl/ssl_howto.xml
@@ -67,7 +67,7 @@ only?</title>
     <p>The following enables only the strongest ciphers:</p>
     <example><title>httpd.conf</title>
       SSLProtocol all -SSLv2<br />
-      SSLCipherSuite HIGH:!ADH:!EXP:!MD5:!NULL<br />
+      SSLCipherSuite HIGH:!aNULL:!EXP:!MD5:!NULL<br />
     </example>
 
     <p>While with the following configuration you enable two ciphers
@@ -75,7 +75,7 @@ only?</title>
 
     <example><title>httpd.conf</title>
       SSLProtocol all -SSLv2<br />
-      SSLCipherSuite RC4-SHA:AES128-SHA:HIGH:!ADH:!EXP:!MD5:!NULL<br />
+      SSLCipherSuite RC4-SHA:AES128-SHA:HIGH:!aNULL:!EXP:!MD5:!NULL<br />
       SSLHonorCipherOrder on
     </example>
 
@@ -96,12 +96,12 @@ URL?</title>
     This can be done as follows:</p>
     <example>
       # be liberal in general<br />
-      SSLCipherSuite ALL:!ADH:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP:+eNULL<br />
+      SSLCipherSuite ALL:!aNULL:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP:+eNULL<br />
       <br />
       &lt;Location /strong/area&gt;<br />
       # but https://hostname/strong/area/ and below<br />
       # requires strong ciphers<br />
-      SSLCipherSuite HIGH:!ADH:!EXP:!MD5:!NULL<br />
+      SSLCipherSuite HIGH:!aNULL:!EXP:!MD5:!NULL<br />
       &lt;/Location&gt;
     </example>
 </section>