# Resources

# Specifications

OpenID Specification (opens new window)

OAuth 2 Specification (opens new window)

# Implementation Resources

IdentityServer4 (opens new window)

Aspenware's Identity Server is based on IdentityServer4. The IdentityServer4 documentation provides a number of resources for connecting applications.

Implementing OpenID and OAuth 2 Video (opens new window)

Security Best Practices Video (opens new window)