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Incoming HTTPS traffic gets decrypted and forwarded to a web service in the private network. A TLS termination proxy (or SSL termination proxy, [1] or SSL offloading [2]) is a proxy server that acts as an intermediary point between client and server applications, and is used to terminate and/or establish TLS (or DTLS) tunnels by decrypting and/or encrypting communications.
SSL 3.0 (1996) and TLS 1.0 (1999) are successors with two weaknesses in CBC-padding that were explained in 2001 by Serge Vaudenay. [28] TLS 1.1 (2006) fixed only one of the problems, by switching to random initialization vectors (IV) for CBC block ciphers, whereas the more problematic use of mac-pad-encrypt instead of the secure pad-mac-encrypt ...
multiOTP is an open source PHP class, a command line tool, and a web interface that can be used to provide an operating-system-independent, strong authentication system. multiOTP is OATH-certified since version 4.1.0 and is developed under the LGPL license.
Server Name Indication (SNI) is an extension to the Transport Layer Security (TLS) computer networking protocol by which a client indicates which hostname it is attempting to connect to at the start of the handshaking process. [1]
These establish secure communications and then present a communication stream identical to the old un-encrypted protocol. Separate SSL ports have the advantage of fewer round-trips; also less meta-data is transmitted in unencrypted form. [5] Some examples include:
This is an accepted version of this page This is the latest accepted revision, reviewed on 11 February 2025. Extension of the HTTP communications protocol to support TLS encryption Internet protocol suite Application layer BGP DHCP (v6) DNS FTP HTTP (HTTP/3) HTTPS IMAP IRC LDAP MGCP MQTT NNTP NTP OSPF POP PTP ONC/RPC RTP RTSP RIP SIP SMTP SNMP SSH Telnet TLS/SSL XMPP more... Transport layer ...
Not all protocols handle Common Name matching the same way. HTTP requires that the Common Name in the X.509 certificate provided by the service matches regardless of the TLSA asserting its validity. SMTP does not require the Common Name matches, if the certificate usage value is 3 (DANE-EE), but otherwise does require a Common Name match.
In a CA-based PKI system, parties engaged in secure communication must trust a CA, i.e. place the CA certificates in a whitelist of trusted certificates. Developers of web browsers may use procedures specified by the CA/Browser Forum to whitelist well-known, public certificate authorities.