-OpenSSH can utilise Pluggable Authentication Modules (PAM) if your system
-supports it. PAM is standard on Redhat and Debian Linux and on Solaris.
+(OpenSSL 0.9.5a is partially supported, but some ciphers (SSH protocol 1
+Blowfish) do not work correctly.)
+
+The remaining items are optional.
+
+NB. If you operating system supports /dev/random, you should configure
+OpenSSL to use it. OpenSSH relies on OpenSSL's direct support of
+/dev/random, or failing that, either prngd or egd. If you don't have
+any of these you will have to rely on ssh-rand-helper, which is inferior
+to a good kernel-based solution or prngd.
+
+PRNGD:
+
+If your system lacks kernel-based random collection, the use of Lutz
+Jaenicke's PRNGd is recommended.
+
+http://prngd.sourceforge.net/
+
+EGD:
+
+The Entropy Gathering Daemon (EGD) is supported if you have a system which
+lacks /dev/random and don't want to use OpenSSH's internal entropy collection.
+
+http://www.lothar.com/tech/crypto/