> For the complete documentation index, see [llms.txt](https://indigo-dc.gitbook.io/indigo-datacloud-releases/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://indigo-dc.gitbook.io/indigo-datacloud-releases/common_solutions.md).

# Common Solutions

All the INDIGO components are integrated into a comprehensive **Authentication and Authorization Architecture**, with support for *user authentication through multiple methods* (SAML, OpenID Connect and X.509), support for *distributed authorization policies* and a *Token Translation Service*, creating credentials for services that do not natively support OpenID Connect.

* Identity Harmonization Service - [INDIGO-2](/indigo-datacloud-releases/chapter2/all/idh2.md), [INDIGO-1](/indigo-datacloud-releases/chapter1/all/idh1.md)
* INDIGO IAM - [INDIGO-2](/indigo-datacloud-releases/chapter2/all/iam2.md), [INDIGO-1](/indigo-datacloud-releases/chapter1/all/iam1.md)
* Token Translation Service (TTS) - [INDIGO-2](/indigo-datacloud-releases/chapter2/all/watts1.md), [INDIGO-1](/indigo-datacloud-releases/chapter1/all/tts1.md)