https://www.youngju.dev/blog 천천히 올바르게. AI Researcher & DevOps Engineer Youngju's tech blog. GPU/CUDA, LLM, MLOps, Kubernetes AI workloads, distributed training, and data engineering. ko fjvbn2003@gmail.com (Youngju Kim) fjvbn2003@gmail.com (Youngju Kim) Sat, 16 May 2026 00:00:00 GMT https://www.youngju.dev/blog/culture/2026-05-16-sso-identity-providers-2026-keycloak-26-authentik-authelia-auth0-okta-aws-cognito-entra-id-deep-dive.en https://www.youngju.dev/blog/culture/2026-05-16-sso-identity-providers-2026-keycloak-26-authentik-authelia-auth0-okta-aws-cognito-entra-id-deep-dive.en A full survey of the SSO and Identity Provider landscape in 2026. Standards (OAuth 2.1, OIDC, SAML, SCIM, WebAuthn), open-source IdPs (Keycloak 26, Authentik, Authelia, Casdoor), managed SaaS (Auth0, Okta, AWS Cognito, Microsoft Entra ID, Google Cloud Identity), the library camp (Auth.js, Lucia, better-auth, Clerk), the new era of authorization (Ory, OPA, OpenFGA, SpiceDB), Korean and Japanese SSO realities, and the painful migration lessons of ForgeRock and Cognito - laid out across 22 chapters. Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) ssoiamkeycloakauthentikautheliaauth0oktaaws-cognitoentra-idoauth2oidcsamlenglish https://www.youngju.dev/blog/culture/2026-05-16-sso-identity-providers-2026-keycloak-26-authentik-authelia-auth0-okta-aws-cognito-entra-id-deep-dive.ja https://www.youngju.dev/blog/culture/2026-05-16-sso-identity-providers-2026-keycloak-26-authentik-authelia-auth0-okta-aws-cognito-entra-id-deep-dive.ja 2026年のSSOとアイデンティティプロバイダーの全体像を一度に整理する。OAuth 2.1・OIDC・SAML・SCIM・WebAuthnといった標準の本質、Keycloak 26・Authentik・Authelia・CasdoorなどのオープンソースIdP、Auth0・Okta・AWS Cognito・Microsoft Entra ID・Google Cloud Identityのマネージドサービス、Auth.js・Lucia・better-auth・Clerkのライブラリ勢、Ory・OPA・OpenFGA・SpiceDBによる認可の新時代、韓国と日本のSSO事情、ForgeRockやCognitoの移行教訓まで — 22章で一望する。 Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) ssoiamkeycloakauthentikautheliaauth0oktaaws-cognitoentra-idoauth2oidcsaml日本語 https://www.youngju.dev/blog/culture/2026-05-16-sso-identity-providers-2026-keycloak-26-authentik-authelia-auth0-okta-aws-cognito-entra-id-deep-dive https://www.youngju.dev/blog/culture/2026-05-16-sso-identity-providers-2026-keycloak-26-authentik-authelia-auth0-okta-aws-cognito-entra-id-deep-dive 2026년의 SSO와 Identity Provider 풍경을 한 번에 정리한다. OAuth 2.1·OIDC·SAML·SCIM·WebAuthn 같은 표준의 본질, Keycloak 26·Authentik·Authelia·Casdoor 같은 오픈소스 IdP, Auth0·Okta·AWS Cognito·Microsoft Entra ID·Google Cloud Identity 같은 매니지드 SaaS, Auth.js·Lucia·better-auth·Clerk 같은 라이브러리 진영, Ory·OPA·OpenFGA·SpiceDB로 이어지는 인가(Authorization)의 새 시대, 한국과 일본의 SSO 현실, ForgeRock·Cognito 같은 마이그레이션 이슈까지 — 22개 챕터로 펼친다. Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) ssoiamkeycloakauthentikautheliaauth0oktaaws-cognitoentra-idoauth2oidcsaml