2.4.x: http://people.apache.org/~jailletc36/1481396.patch
+1: jailletc36
+ * mod_session_crypto: Add support for exec: calls to obtain key similar to
+ mod_ssl and mod_authnz_ldap. Essentially copypasta from mod_authnz_ldap...
+ trunk patch: http://people.apache.org/~druggeri/patches/SessionCryptoPassphrase-exec.trunk.patch
+ 2.4.x patch: http://people.apache.org/~druggeri/patches/SessionCryptoPassphrase-exec.2.4.x.patch
+ +1: druggeri
+
A list of further possible backports can be found at:
http://people.apache.org/~rjung/patches/possible-backports-httpd-trunk-2_4.txt
If you want to propose one of those, please still add them here.