# Technical Concepts

- [OAuth 2.1 Concepts](/docs/legacy-myinfo-v3-v4/technical-specifications/myinfo-v4/technical-concepts/oauth-2.1-concepts.md)
- [Proof of Key Code Exchange (PKCE)](/docs/legacy-myinfo-v3-v4/technical-specifications/myinfo-v4/technical-concepts/proof-of-key-code-exchange-pkce.md)
- [JSON Web Token (JWT)](/docs/legacy-myinfo-v3-v4/technical-specifications/myinfo-v4/technical-concepts/json-web-token-jwt.md)
- [Client Assertions](/docs/legacy-myinfo-v3-v4/technical-specifications/myinfo-v4/technical-concepts/client-assertions.md)
- [JSON Web Key Store (JWKS)](/docs/legacy-myinfo-v3-v4/technical-specifications/myinfo-v4/technical-concepts/json-web-key-store-jwks.md)
- [Demonstration of Proof-of-Possession (DPoP)](/docs/legacy-myinfo-v3-v4/technical-specifications/myinfo-v4/technical-concepts/demonstration-of-proof-of-possession-dpop.md)