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Mutual authentication
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Mutual authentication
Mutual authentication or two-way authentication (not to be confused with two-factor authentication) refers to two parties authenticating each other at the same time in an authentication protocol. It is a default mode of authentication in some protocols (IKE, SSH) and optional in others (TLS).
Mutual authentication is a desired characteristic in verification schemes that transmit sensitive data, in order to ensure data security. Mutual authentication can be accomplished with two types of credentials: usernames and passwords, and public key certificates.
Mutual authentication is often employed in the Internet of Things (IoT). Writing effective security schemes in IoT systems is challenging, especially when schemes are desired to be lightweight and have low computational costs. Mutual authentication is a crucial security step that can defend against many adversarial attacks, which otherwise can have large consequences if IoT systems (such as e-Healthcare servers) are hacked. In scheme analyses done of past works, a lack of mutual authentication had been considered a weakness in data transmission schemes.
Schemes that have a mutual authentication step may use different methods of encryption, communication, and verification, but they all share one thing in common: each entity involved in the communication is verified. If Alice wants to communicate with Bob, they will both authenticate the other and verify that it is who they are expecting to communicate with before any data or messages are transmitted. A mutual authentication process that exchanges user IDs may be implemented as follows:[citation needed]
To verify that mutual authentication has occurred successfully, Burrows-Abadi-Needham logic (BAN logic) is a well regarded and widely accepted method to use, because it verifies that a message came from a trustworthy entity. BAN logic first assumes an entity is not to be trusted, and then will verify its legality.
Mutual authentication supports zero trust networking because it can protect communications against adversarial attacks, notably:
Mutual authentication also ensures information integrity because if the parties are verified to be the correct source, then the information received is reliable as well.
By default the TLS protocol only proves the identity of the server to the client using X.509 certificates, and the authentication of the client to the server is left to the application layer. TLS also offers client-to-server authentication using client-side X.509 authentication. As it requires provisioning of the certificates to the clients and involves a less user-friendly experience, it is rarely used in end-user applications.
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Mutual authentication
Mutual authentication or two-way authentication (not to be confused with two-factor authentication) refers to two parties authenticating each other at the same time in an authentication protocol. It is a default mode of authentication in some protocols (IKE, SSH) and optional in others (TLS).
Mutual authentication is a desired characteristic in verification schemes that transmit sensitive data, in order to ensure data security. Mutual authentication can be accomplished with two types of credentials: usernames and passwords, and public key certificates.
Mutual authentication is often employed in the Internet of Things (IoT). Writing effective security schemes in IoT systems is challenging, especially when schemes are desired to be lightweight and have low computational costs. Mutual authentication is a crucial security step that can defend against many adversarial attacks, which otherwise can have large consequences if IoT systems (such as e-Healthcare servers) are hacked. In scheme analyses done of past works, a lack of mutual authentication had been considered a weakness in data transmission schemes.
Schemes that have a mutual authentication step may use different methods of encryption, communication, and verification, but they all share one thing in common: each entity involved in the communication is verified. If Alice wants to communicate with Bob, they will both authenticate the other and verify that it is who they are expecting to communicate with before any data or messages are transmitted. A mutual authentication process that exchanges user IDs may be implemented as follows:[citation needed]
To verify that mutual authentication has occurred successfully, Burrows-Abadi-Needham logic (BAN logic) is a well regarded and widely accepted method to use, because it verifies that a message came from a trustworthy entity. BAN logic first assumes an entity is not to be trusted, and then will verify its legality.
Mutual authentication supports zero trust networking because it can protect communications against adversarial attacks, notably:
Mutual authentication also ensures information integrity because if the parties are verified to be the correct source, then the information received is reliable as well.
By default the TLS protocol only proves the identity of the server to the client using X.509 certificates, and the authentication of the client to the server is left to the application layer. TLS also offers client-to-server authentication using client-side X.509 authentication. As it requires provisioning of the certificates to the clients and involves a less user-friendly experience, it is rarely used in end-user applications.