How deeply does Spring Security in Action, Second Edition cover client authentication method?

Defines the method and shows matching client and authorization-server configuration, without comparing alternative authentication mechanisms.

Client authentication method

As explained in Spring Security in Action, Second Edition

A client authentication method is the protocol mechanism an OAuth client uses to authenticate when calling a provider's secured endpoints.

A client authentication method specifies how an OAuth client proves its identity when calling a provider’s secured endpoints, especially when requesting access tokens. Spring Security commonly configures this as HTTP Basic through `client_secret_basic`. section 16.1.3 section 14.1

Configure the method alongside the client’s other registration details:

Keep the method distinct from the authorization grant type, redirect URI, and scope; each controls a different part of the client registration. section 14.1

Authorization-code client using HTTP Basic

A client registered with ID `client`, secret `secret`, `CLIENT_SECRET_BASIC`, and the authorization-code grant can authenticate to the authorization server while using its registered redirect URI and scope.

How Spring Security in Action, Second Edition covers it

Cover of Spring Security in Action, Second Edition

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Related concepts

token endpointuses · A token endpoint is an authorization server endpoint where a client exchanges an authorization grant or credential for access tokens.
authenticationkind of · Authentication is the process of establishing or verifying the identity of a user, service, device, or other communicating entity.

This explainer was generated by Manning's knowledge graph from the text of Spring Security in Action, Second Edition. The section links point to the parts of the book it draws on.