> For the complete documentation index, see [llms.txt](https://dev.ishare.eu/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://dev.ishare.eu/version-2.1/introduction.md).

# Introduction

- [Getting started](https://dev.ishare.eu/version-2.1/introduction/getting-started.md)
- [Test certificates](https://dev.ishare.eu/version-2.1/introduction/getting-started/test-certificates.md)
- [Test participants](https://dev.ishare.eu/version-2.1/introduction/getting-started/test-participants.md)
- [Postman collections](https://dev.ishare.eu/version-2.1/introduction/getting-started/postman-collections.md)
- [Release info](https://dev.ishare.eu/version-2.1/introduction/upgrade-to-ishare-2.0.md)
- [Help & support](https://dev.ishare.eu/version-2.1/introduction/help-and-support.md)
- [Specific technical standards](https://dev.ishare.eu/version-2.1/introduction/specific-technical-standards.md)
- [JSON Web Token (JWT)](https://dev.ishare.eu/version-2.1/introduction/specific-technical-standards/json-web-token-jwt.md)
- [OAuth 2.0](https://dev.ishare.eu/version-2.1/introduction/specific-technical-standards/oauth-2.0.md)
- [OpenID Connect 1.0](https://dev.ishare.eu/version-2.1/introduction/specific-technical-standards/openid-connect-1.0.md)
- [PKI](https://dev.ishare.eu/version-2.1/introduction/specific-technical-standards/pki.md)
- [TLS](https://dev.ishare.eu/version-2.1/introduction/specific-technical-standards/tls.md)
- [XACML 3.0](https://dev.ishare.eu/version-2.1/introduction/specific-technical-standards/xacml-3.0.md)
- [Caching](https://dev.ishare.eu/version-2.1/introduction/specific-technical-standards/caching.md)
- [DID](https://dev.ishare.eu/version-2.1/introduction/specific-technical-standards/did.md)
- [UTC](https://dev.ishare.eu/version-2.1/introduction/specific-technical-standards/utc.md)
- [X.509](https://dev.ishare.eu/version-2.1/introduction/specific-technical-standards/x.509.md)
- [HTTP response codes](https://dev.ishare.eu/version-2.1/introduction/specific-technical-standards/http-response-codes.md)
- [UI Guidelines](https://dev.ishare.eu/version-2.1/introduction/ui-guidelines.md)
- [Conformance test tool](https://dev.ishare.eu/version-2.1/introduction/conformance-test-tool.md)