Add overview, getting help, and getting started

Closes gh-667
Closes gh-668
Closes gh-669
This commit is contained in:
Steve Riesenberg
2022-04-07 13:16:10 -05:00
parent a8974c6cca
commit 8458d1249e
5 changed files with 486 additions and 15 deletions

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/*
* Copyright 2020-2022 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package sample.gettingStarted;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.interfaces.RSAPrivateKey;
import java.security.interfaces.RSAPublicKey;
import java.util.UUID;
import com.nimbusds.jose.jwk.JWKSet;
import com.nimbusds.jose.jwk.RSAKey;
import com.nimbusds.jose.jwk.source.ImmutableJWKSet;
import com.nimbusds.jose.jwk.source.JWKSource;
import com.nimbusds.jose.proc.SecurityContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.annotation.Order;
import org.springframework.security.config.Customizer;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.OAuth2AuthorizationServerConfiguration;
import org.springframework.security.core.userdetails.User;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.oauth2.core.AuthorizationGrantType;
import org.springframework.security.oauth2.core.ClientAuthenticationMethod;
import org.springframework.security.oauth2.core.oidc.OidcScopes;
import org.springframework.security.oauth2.server.authorization.client.InMemoryRegisteredClientRepository;
import org.springframework.security.oauth2.server.authorization.client.RegisteredClient;
import org.springframework.security.oauth2.server.authorization.client.RegisteredClientRepository;
import org.springframework.security.oauth2.server.authorization.config.ClientSettings;
import org.springframework.security.oauth2.server.authorization.config.ProviderSettings;
import org.springframework.security.provisioning.InMemoryUserDetailsManager;
import org.springframework.security.web.SecurityFilterChain;
import org.springframework.security.web.authentication.LoginUrlAuthenticationEntryPoint;
@Configuration
public class SecurityConfig {
@Bean // <1>
@Order(1)
public SecurityFilterChain authorizationServerSecurityFilterChain(HttpSecurity http) throws Exception {
OAuth2AuthorizationServerConfiguration.applyDefaultSecurity(http);
// @formatter:off
http
.exceptionHandling((exceptions) -> exceptions
.authenticationEntryPoint(new LoginUrlAuthenticationEntryPoint("/login"))
);
// @formatter:on
return http.build();
}
@Bean // <2>
@Order(2)
public SecurityFilterChain defaultSecurityFilterChain(HttpSecurity http) throws Exception {
// @formatter:off
http
.authorizeHttpRequests((authorize) -> authorize
.anyRequest().authenticated()
)
.formLogin(Customizer.withDefaults());
// @formatter:on
return http.build();
}
@Bean // <3>
public UserDetailsService userDetailsService() {
// @formatter:off
UserDetails userDetails = User.withDefaultPasswordEncoder()
.username("user")
.password("password")
.roles("USER")
.build();
// @formatter:on
return new InMemoryUserDetailsManager(userDetails);
}
@Bean // <4>
public RegisteredClientRepository registeredClientRepository() {
// @formatter:off
RegisteredClient registeredClient = RegisteredClient.withId(UUID.randomUUID().toString())
.clientId("messaging-client")
.clientSecret("{noop}secret")
.clientAuthenticationMethod(ClientAuthenticationMethod.CLIENT_SECRET_BASIC)
.authorizationGrantType(AuthorizationGrantType.AUTHORIZATION_CODE)
.authorizationGrantType(AuthorizationGrantType.REFRESH_TOKEN)
.authorizationGrantType(AuthorizationGrantType.CLIENT_CREDENTIALS)
.redirectUri("http://127.0.0.1:8080/login/oauth2/code/messaging-client-oidc")
.redirectUri("http://127.0.0.1:8080/authorized")
.scope(OidcScopes.OPENID)
.scope("message.read")
.scope("message.write")
.clientSettings(ClientSettings.builder().requireAuthorizationConsent(true).build())
.build();
// @formatter:on
return new InMemoryRegisteredClientRepository(registeredClient);
}
@Bean // <5>
public JWKSource<SecurityContext> jwkSource() {
KeyPair keyPair = generateRsaKey();
RSAPublicKey publicKey = (RSAPublicKey) keyPair.getPublic();
RSAPrivateKey privateKey = (RSAPrivateKey) keyPair.getPrivate();
// @formatter:off
RSAKey rsaKey = new RSAKey.Builder(publicKey)
.privateKey(privateKey)
.keyID(UUID.randomUUID().toString())
.build();
// @formatter:on
JWKSet jwkSet = new JWKSet(rsaKey);
return new ImmutableJWKSet<>(jwkSet);
}
private static KeyPair generateRsaKey() { // <6>
KeyPair keyPair;
try {
KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA");
keyPairGenerator.initialize(2048);
keyPair = keyPairGenerator.generateKeyPair();
}
catch (Exception ex) {
throw new IllegalStateException(ex);
}
return keyPair;
}
@Bean // <7>
public ProviderSettings providerSettings() {
return ProviderSettings.builder().build();
}
}

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/*
* Copyright 2020-2022 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package sample.gettingStarted;
import java.net.URLDecoder;
import java.nio.charset.StandardCharsets;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.assertj.core.api.ObjectAssert;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import sample.test.SpringTestContext;
import sample.test.SpringTestContextExtension;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Import;
import org.springframework.http.HttpHeaders;
import org.springframework.http.MediaType;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.OAuth2AuthorizationServerConfiguration;
import org.springframework.security.oauth2.core.AuthorizationGrantType;
import org.springframework.security.oauth2.core.OAuth2TokenType;
import org.springframework.security.oauth2.core.endpoint.OAuth2AuthorizationResponseType;
import org.springframework.security.oauth2.core.endpoint.OAuth2ParameterNames;
import org.springframework.security.oauth2.core.oidc.endpoint.OidcParameterNames;
import org.springframework.security.oauth2.server.authorization.InMemoryOAuth2AuthorizationConsentService;
import org.springframework.security.oauth2.server.authorization.InMemoryOAuth2AuthorizationService;
import org.springframework.security.oauth2.server.authorization.OAuth2Authorization;
import org.springframework.security.oauth2.server.authorization.OAuth2AuthorizationConsent;
import org.springframework.security.oauth2.server.authorization.OAuth2AuthorizationConsentService;
import org.springframework.security.oauth2.server.authorization.OAuth2AuthorizationService;
import org.springframework.security.oauth2.server.authorization.client.InMemoryRegisteredClientRepository;
import org.springframework.security.oauth2.server.authorization.client.RegisteredClient;
import org.springframework.security.oauth2.server.authorization.client.RegisteredClientRepository;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.MvcResult;
import org.springframework.util.LinkedMultiValueMap;
import org.springframework.util.MultiValueMap;
import org.springframework.util.StringUtils;
import org.springframework.web.util.UriComponents;
import org.springframework.web.util.UriComponentsBuilder;
import static org.assertj.core.api.Assertions.assertThat;
import static org.hamcrest.Matchers.containsString;
import static org.springframework.security.test.web.servlet.request.SecurityMockMvcRequestPostProcessors.user;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.header;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
/**
* Tests for the Getting Started section of the reference documentation.
*
* @author Steve Riesenberg
*/
@ExtendWith(SpringTestContextExtension.class)
public class SecurityConfigTests {
private static final Pattern HIDDEN_STATE_INPUT_PATTERN = Pattern.compile(".+<input type=\"hidden\" name=\"state\" value=\"([^\"]+)\">.+");
private static final TypeReference<Map<String, Object>> TOKEN_RESPONSE_TYPE_REFERENCE = new TypeReference<Map<String, Object>>() {
};
public final SpringTestContext spring = new SpringTestContext(this);
@Autowired
private MockMvc mockMvc;
@Autowired
private RegisteredClientRepository registeredClientRepository;
@Autowired
private OAuth2AuthorizationService authorizationService;
@Autowired
private OAuth2AuthorizationConsentService authorizationConsentService;
@Test
public void oidcLoginWhenGettingStartedConfigUsedThenSuccess() throws Exception {
this.spring.register(AuthorizationServerConfig.class).autowire();
assertThat(this.registeredClientRepository).isInstanceOf(InMemoryRegisteredClientRepository.class);
assertThat(this.authorizationService).isInstanceOf(InMemoryOAuth2AuthorizationService.class);
assertThat(this.authorizationConsentService).isInstanceOf(InMemoryOAuth2AuthorizationConsentService.class);
RegisteredClient registeredClient = this.registeredClientRepository.findByClientId("messaging-client");
assertThat(registeredClient).isNotNull();
String state = performAuthorizationCodeRequest(registeredClient);
assertThatAuthorization(state, OAuth2ParameterNames.STATE).isNotNull();
assertThatAuthorization(state, null).isNotNull();
String authorizationCode = performAuthorizationConsentRequest(registeredClient, state);
assertThatAuthorization(authorizationCode, OAuth2ParameterNames.CODE).isNotNull();
assertThatAuthorization(authorizationCode, null).isNotNull();
Map<String, Object> tokenResponse = performTokenRequest(registeredClient, authorizationCode);
String accessToken = (String) tokenResponse.get(OAuth2ParameterNames.ACCESS_TOKEN);
assertThatAuthorization(accessToken, OAuth2ParameterNames.ACCESS_TOKEN).isNotNull();
assertThatAuthorization(accessToken, null).isNotNull();
String refreshToken = (String) tokenResponse.get(OAuth2ParameterNames.REFRESH_TOKEN);
assertThatAuthorization(refreshToken, OAuth2ParameterNames.REFRESH_TOKEN).isNotNull();
assertThatAuthorization(refreshToken, null).isNotNull();
String idToken = (String) tokenResponse.get(OidcParameterNames.ID_TOKEN);
assertThatAuthorization(idToken, OidcParameterNames.ID_TOKEN).isNull(); // id_token is not searchable
OAuth2Authorization authorization = findAuthorization(accessToken, OAuth2ParameterNames.ACCESS_TOKEN);
assertThat(authorization.getToken(idToken)).isNotNull();
String scopes = (String) tokenResponse.get(OAuth2ParameterNames.SCOPE);
OAuth2AuthorizationConsent authorizationConsent = this.authorizationConsentService.findById(
registeredClient.getId(), "user");
assertThat(authorizationConsent).isNotNull();
assertThat(authorizationConsent.getScopes()).containsExactlyInAnyOrder(
StringUtils.delimitedListToStringArray(scopes, " "));
}
private ObjectAssert<OAuth2Authorization> assertThatAuthorization(String token, String tokenType) {
return assertThat(findAuthorization(token, tokenType));
}
private OAuth2Authorization findAuthorization(String token, String tokenType) {
return this.authorizationService.findByToken(token, tokenType == null ? null : new OAuth2TokenType(tokenType));
}
private String performAuthorizationCodeRequest(RegisteredClient registeredClient) throws Exception {
MultiValueMap<String, String> parameters = new LinkedMultiValueMap<>();
parameters.set(OAuth2ParameterNames.RESPONSE_TYPE, OAuth2AuthorizationResponseType.CODE.getValue());
parameters.set(OAuth2ParameterNames.CLIENT_ID, registeredClient.getClientId());
parameters.set(OAuth2ParameterNames.REDIRECT_URI, registeredClient.getRedirectUris().iterator().next());
parameters.set(OAuth2ParameterNames.SCOPE,
StringUtils.collectionToDelimitedString(registeredClient.getScopes(), " "));
parameters.set(OAuth2ParameterNames.STATE, "state");
MvcResult mvcResult = this.mockMvc.perform(get("/oauth2/authorize")
.params(parameters)
.with(user("user").roles("USER")))
.andExpect(status().isOk())
.andExpect(header().string("content-type", containsString(MediaType.TEXT_HTML_VALUE)))
.andReturn();
String responseHtml = mvcResult.getResponse().getContentAsString();
Matcher matcher = HIDDEN_STATE_INPUT_PATTERN.matcher(responseHtml);
return matcher.matches() ? matcher.group(1) : null;
}
private String performAuthorizationConsentRequest(RegisteredClient registeredClient, String state) throws Exception {
MultiValueMap<String, String> parameters = new LinkedMultiValueMap<>();
parameters.set(OAuth2ParameterNames.CLIENT_ID, registeredClient.getClientId());
parameters.set(OAuth2ParameterNames.STATE, state);
parameters.add(OAuth2ParameterNames.SCOPE, "message.read");
parameters.add(OAuth2ParameterNames.SCOPE, "message.write");
MvcResult mvcResult = this.mockMvc.perform(post("/oauth2/authorize")
.params(parameters)
.with(user("user").roles("USER")))
.andExpect(status().is3xxRedirection())
.andReturn();
String redirectedUrl = mvcResult.getResponse().getRedirectedUrl();
assertThat(redirectedUrl).isNotNull();
assertThat(redirectedUrl).matches("http://127.0.0.1:8080/authorized\\?code=.{15,}&state=state");
String locationHeader = URLDecoder.decode(redirectedUrl, StandardCharsets.UTF_8.name());
UriComponents uriComponents = UriComponentsBuilder.fromUriString(locationHeader).build();
return uriComponents.getQueryParams().getFirst("code");
}
private Map<String, Object> performTokenRequest(RegisteredClient registeredClient, String authorizationCode) throws Exception {
MultiValueMap<String, String> parameters = new LinkedMultiValueMap<>();
parameters.set(OAuth2ParameterNames.GRANT_TYPE, AuthorizationGrantType.AUTHORIZATION_CODE.getValue());
parameters.set(OAuth2ParameterNames.CODE, authorizationCode);
parameters.set(OAuth2ParameterNames.REDIRECT_URI, registeredClient.getRedirectUris().iterator().next());
HttpHeaders basicAuth = new HttpHeaders();
basicAuth.setBasicAuth(registeredClient.getClientId(), "secret");
MvcResult mvcResult = this.mockMvc.perform(post("/oauth2/token")
.params(parameters)
.headers(basicAuth))
.andExpect(status().isOk())
.andExpect(header().string(HttpHeaders.CONTENT_TYPE, containsString(MediaType.APPLICATION_JSON_VALUE)))
.andExpect(jsonPath("$.access_token").isNotEmpty())
.andExpect(jsonPath("$.token_type").isNotEmpty())
.andExpect(jsonPath("$.expires_in").isNotEmpty())
.andExpect(jsonPath("$.refresh_token").isNotEmpty())
.andExpect(jsonPath("$.scope").isNotEmpty())
.andExpect(jsonPath("$.id_token").isNotEmpty())
.andReturn();
ObjectMapper objectMapper = new ObjectMapper();
String responseJson = mvcResult.getResponse().getContentAsString();
return objectMapper.readValue(responseJson, TOKEN_RESPONSE_TYPE_REFERENCE);
}
@EnableWebSecurity
@EnableAutoConfiguration
@ComponentScan
@Import(OAuth2AuthorizationServerConfiguration.class)
static class AuthorizationServerConfig extends SecurityConfig {
@Bean
public OAuth2AuthorizationService authorizationService() {
return new InMemoryOAuth2AuthorizationService();
}
@Bean
public OAuth2AuthorizationConsentService authorizationConsentService() {
return new InMemoryOAuth2AuthorizationConsentService();
}
}
}

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[[getting-help]]
= Getting Help
:toc: left
:toclevels: 1
This page is under construction.
[[getting-help-community]]
== Community
Welcome to the https://docs.spring.io/spring-security/reference/community.html[Spring Security Community].
Spring Authorization Server is an open source project led by the Spring Security team.
If you need help with Spring Authorization Server, we are here to help.
[[getting-help-resources]]
== Resources
The following are some of the best ways to get help:
* Try the xref:how-to.adoc[How-to guides]. They provide solutions to the most common questions.
* Learn the Spring Security basics that Spring Authorization Server builds on. If you are starting out with Spring Security, check the https://spring.io/projects/spring-security#learn[reference documentation] or try one of the https://github.com/spring-projects/spring-security-samples[samples].
* Read through xref:index.adoc[this documentation].
* Try one of our many https://github.com/spring-projects/spring-authorization-server/tree/main/samples[sample applications].
* Ask a question on Stack Overflow with the https://stackoverflow.com/questions/tagged/spring-security[`spring-security`] tag.
* Report bugs and enhancement requests on https://github.com/spring-projects/spring-authorization-server/issues[GitHub].
NOTE: Spring Authorization Server is open source, including the documentation. If you find problems with the docs or if you want to improve them, please https://github.com/spring-projects/spring-authorization-server[get involved].

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[[getting-started]]
= Getting Started
:toc: left
:toclevels: 1
This page is under construction.
If you are just getting started with Spring Authorization Server, the following sections walk you through creating your first application.
[[system-requirements]]
== System Requirements
This section is under construction.
Spring Authorization Server requires a Java 11 or higher Runtime Environment.
[[installing-spring-authorization-server]]
== Installing Spring Authorization Server
This section is under construction.
Spring Authorization Server can be used anywhere you already use https://docs.spring.io/spring-security/reference/prerequisites.html[Spring Security].
The easiest way to begin using Spring Authorization Server is by creating a https://spring.io/projects/spring-boot[Spring Boot]-based application.
You can use https://start.spring.io[start.spring.io] to generate a basic project or use the https://github.com/spring-projects/spring-authorization-server/tree/main/samples/default-authorizationserver[default authorization server sample] as a guide.
Then add Spring Authorization Server as a dependency, as in the following example:
[[maven-dependency]]
.Maven
[source,xml,role="primary",subs="attributes,verbatim"]
----
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-oauth2-authorization-server</artifactId>
<version>{spring-authorization-server-version}</version>
</dependency>
----
[[gradle-dependency]]
.Gradle
[source,gradle,role="secondary",subs="attributes,verbatim"]
----
implementation "org.springframework.security:spring-security-oauth2-authorization-server:{spring-authorization-server-version}"
----
TIP: See https://docs.spring.io/spring-boot/docs/current/reference/html/getting-started.html#getting-started.installing[Installing Spring Boot] for more information on using Spring Boot with Maven or Gradle.
[[developing-your-first-application]]
== Developing Your First Spring Authorization Server Application
== Developing Your First Application
This section is under construction.
To get started, you need the minimum required components defined as a `@Bean` in a Spring `@Configuration`. These components can be defined as follows:
TIP: To skip the setup and run a working example, see the https://github.com/spring-projects/spring-authorization-server/tree/main/samples/default-authorizationserver[default authorization server sample].
[[sample.gettingStarted]]
include::code:SecurityConfig[]
This is a minimal configuration for getting started quickly. To understand what each component is used for, see the following descriptions:
<1> A Spring Security filter chain for the xref:protocol-endpoints.adoc[Protocol Endpoints].
<2> A Spring Security filter chain for https://docs.spring.io/spring-security/reference/servlet/authentication/index.html[authentication].
<3> An instance of `UserDetailsService` for retrieving users to authenticate.
<4> An instance of xref:core-components.adoc#registered-client-repository[`RegisteredClientRepository`] for managing clients.
<5> An instance of `com.nimbusds.jose.jwk.source.JWKSource` for signing access tokens.
<6> An instance of `java.security.KeyPair` with keys generated on startup used to create the `JWKSource` above.
<7> An instance of `ProviderSettings` to configure Spring Authorization Server.

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:toc: left
:toclevels: 1
This page is under construction.
This site contains reference documentation and how-to guides for Spring Authorization Server.
[[introducing-spring-authorization-server]]
[[overview-introducing-spring-authorization-server]]
== Introducing Spring Authorization Server
This section is under construction.
Spring Authorization Server is a framework that provides implementations of the https://datatracker.ietf.org/doc/html/draft-ietf-oauth-v2-1-05[OAuth 2.1] and https://openid.net/specs/openid-connect-core-1_0.html[OpenID Connect 1.0] specifications and other related specifications.
It is built on top of https://spring.io/projects/spring-security[Spring Security] to provide a secure, light-weight, and customizable foundation for building OpenID Connect 1.0 Identity Providers and OAuth2 Authorization Server products.
[[feature-list]]
[[overview-feature-list]]
== Feature List
This section is under construction.
Spring Authorization Server supports the following features:
* The OAuth 2.1 Authorization Framework (https://datatracker.ietf.org/doc/html/draft-ietf-oauth-v2-1-05[Draft])
** Authorization Grant
*** https://datatracker.ietf.org/doc/html/draft-ietf-oauth-v2-1-05#section-4.1[Authorization Code]
*** https://datatracker.ietf.org/doc/html/draft-ietf-oauth-v2-1-05#section-4.2[Client Credentials]
*** https://datatracker.ietf.org/doc/html/draft-ietf-oauth-v2-1-05#section-4.3[Refresh Token]
** Access Token Format
*** Self-contained (JWT)
*** Reference (Opaque)
** https://datatracker.ietf.org/doc/html/draft-ietf-oauth-v2-1-05#section-2.4[Client Authentication]
*** HTTP Basic
*** HTTP POST
*** JSON Web Token (JWT) Profile for OAuth 2.0 Client Authentication (https://tools.ietf.org/html/rfc7523[RFC 7523])
**** `private_key_jwt`
**** `client_secret_jwt`
** User Consent
*** https://datatracker.ietf.org/doc/html/draft-ietf-oauth-v2-1-05#section-4.1[Authorization Code Grant]
* Proof Key for Code Exchange by OAuth Public Clients (PKCE) (https://tools.ietf.org/html/rfc7636[RFC 7636])
* OAuth 2.0 Token Revocation (https://tools.ietf.org/html/rfc7009[RFC 7009])
* OAuth 2.0 Token Introspection (https://tools.ietf.org/html/rfc7662[RFC 7662])
* OAuth 2.0 Authorization Server Metadata (https://tools.ietf.org/html/rfc8414[RFC 8414])
* JSON Web Token (JWT) (https://tools.ietf.org/html/rfc7519[RFC 7519])
* JSON Web Signature (JWS) (https://tools.ietf.org/html/rfc7515[RFC 7515])
* JSON Web Key (JWK) (https://tools.ietf.org/html/rfc7517[RFC 7517])
* OpenID Connect Core 1.0 (https://openid.net/specs/openid-connect-core-1_0.html[spec])
** https://openid.net/specs/openid-connect-core-1_0.html#CodeFlowAuth[Authorization Code Flow]
** https://openid.net/specs/openid-connect-core-1_0.html#UserInfo[UserInfo Endpoint]
* OpenID Connect Discovery 1.0 (https://openid.net/specs/openid-connect-discovery-1_0.html[spec])
** https://openid.net/specs/openid-connect-discovery-1_0.html#ProviderConfig[Provider Configuration Endpoint]
* OpenID Connect Dynamic Client Registration 1.0 (https://openid.net/specs/openid-connect-registration-1_0.html[spec])
** https://openid.net/specs/openid-connect-registration-1_0.html#ClientRegistration[Client Registration Endpoint]
** https://openid.net/specs/openid-connect-registration-1_0.html#ClientConfigurationEndpoint[Client Configuration Endpoint]