HTTPS 	flag 	HTTPS is being used.
SSL_PROTOCOL 	string 	The SSL protocol version (SSLv3, TLSv1, TLSv1.1, TLSv1.2)
SSL_SESSION_ID 	string 	The hex-encoded SSL session id
SSL_SESSION_RESUMED 	string 	Initial or Resumed SSL Session. Note: multiple requests may be served over the same (Initial or Resumed) SSL session if HTTP KeepAlive is in use
SSL_SECURE_RENEG 	string 	true if secure renegotiation is supported, else false
SSL_CIPHER 	string 	The cipher specification name
SSL_CIPHER_EXPORT 	string 	true if cipher is an export cipher
SSL_CIPHER_USEKEYSIZE 	number 	Number of cipher bits (actually used)
SSL_CIPHER_ALGKEYSIZE 	number 	Number of cipher bits (possible)
SSL_COMPRESS_METHOD 	string 	SSL compression method negotiated
SSL_VERSION_INTERFACE 	string 	The mod_ssl program version
SSL_VERSION_LIBRARY 	string 	The OpenSSL program version
SSL_CLIENT_M_VERSION 	string 	The version of the client certificate
SSL_CLIENT_M_SERIAL 	string 	The serial of the client certificate
SSL_CLIENT_S_DN 	string 	Subject DN in client's certificate
SSL_CLIENT_S_DN_x509 	string 	Component of client's Subject DN
SSL_CLIENT_SAN_Email_n 	string 	Client certificate's subjectAltName extension entries of type rfc822Name
SSL_CLIENT_SAN_DNS_n 	string 	Client certificate's subjectAltName extension entries of type dNSName
SSL_CLIENT_SAN_OTHER_msUPN_n 	string 	Client certificate's subjectAltName extension entries of type otherName, Microsoft User Principal Name form (OID 1.3.6.1.4.1.311.20.2.3)
SSL_CLIENT_I_DN 	string 	Issuer DN of client's certificate
SSL_CLIENT_I_DN_x509 	string 	Component of client's Issuer DN
SSL_CLIENT_V_START 	string 	Validity of client's certificate (start time)
SSL_CLIENT_V_END 	string 	Validity of client's certificate (end time)
SSL_CLIENT_V_REMAIN 	string 	Number of days until client's certificate expires
SSL_CLIENT_A_SIG 	string 	Algorithm used for the signature of client's certificate
SSL_CLIENT_A_KEY 	string 	Algorithm used for the public key of client's certificate
SSL_CLIENT_CERT 	string 	PEM-encoded client certificate
SSL_CLIENT_CERT_CHAIN_n 	string 	PEM-encoded certificates in client certificate chain
SSL_CLIENT_CERT_RFC4523_CEA 	string 	Serial number and issuer of the certificate. The format matches that of the CertificateExactAssertion in RFC4523
SSL_CLIENT_VERIFY 	string 	NONE, SUCCESS, GENEROUS or FAILED:reason
SSL_SERVER_M_VERSION 	string 	The version of the server certificate
SSL_SERVER_M_SERIAL 	string 	The serial of the server certificate
SSL_SERVER_S_DN 	string 	Subject DN in server's certificate
SSL_SERVER_SAN_Email_n 	string 	Server certificate's subjectAltName extension entries of type rfc822Name
SSL_SERVER_SAN_DNS_n 	string 	Server certificate's subjectAltName extension entries of type dNSName
SSL_SERVER_SAN_OTHER_dnsSRV_n 	string 	Server certificate's subjectAltName extension entries of type otherName, SRVName form (OID 1.3.6.1.5.5.7.8.7, RFC 4985)
SSL_SERVER_S_DN_x509 	string 	Component of server's Subject DN
SSL_SERVER_I_DN 	string 	Issuer DN of server's certificate
SSL_SERVER_I_DN_x509 	string 	Component of server's Issuer DN
SSL_SERVER_V_START 	string 	Validity of server's certificate (start time)
SSL_SERVER_V_END 	string 	Validity of server's certificate (end time)
SSL_SERVER_A_SIG 	string 	Algorithm used for the signature of server's certificate
SSL_SERVER_A_KEY 	string 	Algorithm used for the public key of server's certificate
SSL_SERVER_CERT 	string 	PEM-encoded server certificate
SSL_SRP_USER 	string 	SRP username
SSL_SRP_USERINFO 	string 	SRP user info
SSL_TLS_SNI 	string 	Contents of the SNI TLS extension (if supplied with ClientHello)
