This perl module provides support for the https protocol under LWP, so that a LWP::UserAgent can make https GET & HEAD & POST requests. Please see perldoc LWP for more information on POST requests. The Crypt::SSLeay package contains Net::SSL, which is automatically loaded by LWP::Protocol::https on https requests, and provides the necessary SSL glue for that module to work via these deprecated modules: Crypt::SSLeay::CTX Crypt::SSLeay::Conn Crypt::SSLeay::X509 Work on Crypt::SSLeay has been continued only to provide https support for the LWP - libwww perl libraries. If you want access to the OpenSSL API via perl, check out Sampo's Net::SSLeay. WWW: http://search.cpan.org/dist/Crypt-SSLeay/