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This is an accepted version of this page This is the latest accepted revision, reviewed on 7 January 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 TCP ...
The purpose of a certificate authority in the conventional SSL system is to vouch for the identity of a site, by checking its SSL certificate. Without some vouchsafing, one is open to a man-in-the-middle attack. A single site is vouched for by only a single certificate authority (CA), and this CA has to be trusted by the user.
The Simple Certificate Enrollment Protocol still is the most popular and widely available certificate enrollment protocol, being used by numerous manufacturers of network equipment and software who are developing simplified means of handling certificates for large-scale implementation to everyday users.
Electronic authentication is the process of establishing confidence in user identities electronically presented to an information system. [1] Digital authentication, or e-authentication, may be used synonymously when referring to the authentication process that confirms or certifies a person's identity and works.
Simple Authentication and Security Layer (SASL) is a framework for authentication and data security in Internet protocols. It decouples authentication mechanisms from application protocols , in theory allowing any authentication mechanism supported by SASL to be used in any application protocol that uses SASL.
If you're having trouble connecting to AOL Mail through a third-party app, you may need to update your settings. Learn how to update your app's secure connection settings.
In cryptography, a client certificate is a type of digital certificate that is used by client systems to make authenticated requests to a remote server. [1] Client certificates play a key role in many mutual authentication designs, providing strong assurances of a requester's identity.
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