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+All the environment variables set by this module are:
+
+HTTPS: can be "on" or "off"
+SSL_VERSION_LIBRARY: The version of the gnutls library
+SSL_VERSION_INTERFACE: The version of this module
+SSL_PROTOCOL: The SSL or TLS protocol name (such as "TLS 1.0" etc.)
+SSL_CIPHER: The SSL or TLS cipher suite name.
+SSL_COMPRESS_METHOD: The negotiated compression method (NULL or DEFLATE)
+SSL_SRP_USER: The SRP username used for authentication.
+SSL_CLIENT_VERIFY: 
+  whether the client's certificate was verified. (NONE if none was sent, or SUCCESS or FAILED)
+SSL_CIPHER_USEKEYSIZE and SSL_CIPHER_ALGKEYSIZE: The number if bits used in the used cipher
+  algorithm. This does not fully reflect the security level since the size of 
+  RSA or DHE key exchange parameters affect the security level too.
+SSL_CIPHER_EXPORT: true or false. Whether the cipher suite negotiated is an export one.
+SSL_SESSION_ID: The session ID negotiated in this session. Can be the same during
+  client reloads.
+SSL_CLIENT_V_REMAIN: The number of days until the client's certificate is expired.
+
+SSL_CLIENT_CERT: The PEM-encoded client certificate
+SSL_SERVER_CERT: The PEM-encoded server certificate