Net::LDAP::Filter question

[<ti...@uc...>]

I am working on a script that starts with a server cert and proxies as a user.  To do 
this I need to determine which user presented his cert to the web server.  The web 
server puts the cert (MIME base 64 encoded) into the environment.  It also puts 
other things like the user's CN, but that is not unique.  So I need to do a search on 
the usercertificate;binary.  I extract the cert from the env, then decode it.

If I use regexs to replace the characters described by RFC 2254 with the proper 
encoding, everything works.  Since this is sample code for others, I would like to use 
Net::LDAP::Filter, but so far I can't seem to get it to work.

Is there an option to get Net::LDAP::Filter to do the encoding?

I would like to do something like:

$filter = Net::LDAP::Filter->new("(usercertificate=$webcert)");
$mesg = $ldap->search( base => 'the base',
			   scope => 'sub',
			   filter => $filter);

Is this a change or is it possible now?