The Client to Authenticator Protocol (CTAP) or X.1278 enables a roaming, user-controlled cryptographic authenticator (such as a smartphone or a hardware...

communications (NFC). A roaming hardware authenticator conforms to the FIDO Client to Authenticator Protocol (CTAP), making WebAuthn effectively backward...

that he or she has possession and control of an authenticator. In the simplest case, the authenticator is a common password. Using the terminology of the...

Extensible Authentication Protocol (EAP) is an authentication framework frequently used in network and internet connections. It is defined in RFC 3748...

combined. The authenticator checks the response against its own calculation of the expected hash value. If the values match, the authenticator acknowledges...

referred to as a U2F authenticator or a FIDO2 authenticator, respectively. A FIDO2 authenticator that also implements the CTAP1/U2F protocol is backward compatible...

primarily at a client–server model, and it provides mutual authentication—both the user and the server verify each other's identity. Kerberos protocol messages...

authentication protocol is a type of computer communications protocol or cryptographic protocol specifically designed for transfer of authentication data...

which includes the W3C Web Authentication (WebAuthn) standard and the FIDO Alliance's Client to Authenticator Protocol 2 (CTAP2). While initially developed...

Password Authentication Protocol (PAP) is a password-based authentication protocol used by Point-to-Point Protocol (PPP) to validate users. PAP is specified...

Extensible Authentication Protocol, also known as Protected EAP or simply PEAP, is a protocol that encapsulates the Extensible Authentication Protocol (EAP)...

including the Code, Identifier, Length, Authenticator and optional Attribute fields. The Authenticator is used to authenticate the reply from the RADIUS server...

server and client instances of the protocol stack on each computer or device. When connected to the network, and periodically thereafter, a client requests...

Internet protocol that exchanges network packets between a client and server through a proxy server. SOCKS5 optionally provides authentication so only...

Things protocol suite[failed verification] and the data format on which COSE messages are based. It is also used in the Client-to-Authenticator Protocol (CTAP)...

two parties in either a client-client or client-server situation use the same secret password to negotiate and authenticate a shared key. Examples of...

SMTP Authentication, often abbreviated SMTP AUTH, is an extension of the Simple Mail Transfer Protocol (SMTP) whereby a client may log in using any authentication...

terms, during SRP (or any other PAKE protocol) authentication, one party (the "client" or "user") demonstrates to another party (the "server") that they...

valid answer ("response") to be authenticated. The simplest example of a challenge-response protocol is password authentication, where the challenge is...

of 100 ms or more. The protocol is usually described in terms of a client–server model, but can as easily be used in peer-to-peer relationships where...

dynamic WEP keys and mutual authentication (between a wireless client and a RADIUS server). LEAP allows for clients to re-authenticate frequently; upon each...

PROTOCOL – VERSION 4rev1. IETF. doi:10.17487/RFC3501. RFC 3501. Retrieved 2016-10-17. ... The Internet Message Access Protocol ... allows a client to...

use the Transmission Control Protocol on port number 25 (between servers) and 587 (for submission from authenticated clients), both with or without encryption...

In computing, the Post Office Protocol (POP) is an application-layer Internet standard protocol used by e-mail clients to retrieve e-mail from a mail server...

the SMTP protocol. The email client which uses the SMTP protocol creates an authentication extension, which the mail server uses to authenticate the sender...

applications. This protocol assumes that it is run over a secure channel, such as SSH, that the server has already authenticated the client, and that the identity...

RADIUS and EAP protocols. In some cases, the authentication server software may be running on the authenticator hardware. The authenticator acts like a security...

a client to provide authentication information. The authentication mechanisms described above belong to the HTTP protocol and are managed by client and...

Service Location Protocol (SLP). It is also used as the basis for Microsoft's Active Directory. A client starts an LDAP session by connecting to an LDAP server...

The File Transfer Protocol (FTP) is a standard communication protocol used for the transfer of computer files from a server to a client on a computer network...