ASP.NET Core Securing APIs
Part 1 see: https://github.com/damienbod/aspnetcore-standup-authn-authz
- Protecting APIs Authorization Overview
- An overview
- Delegated APIs (UI authentication)
- Application APIs (no user)
- On behalf of flow
- APIs protected with Client/server certificate authentication
- Azure Continuous access & continuous access evaluation protected APIs
- General API security topics
- Mixing auth, no auth APIs in an application
- Using Swagger with protected APIs
- Using multiple IDPs in an API service
- Mixing UIs and APIs in an application
- SignalR, web sockets
- Testing secure APIs
- Legacy auth, unsecure flows, using network security
Protecting APIs Authorization Overview
- JWT access tokens
- Introspection (Stateful)
- Cookies
- Client/server certificate authentication
- User access tokens versus application access tokens
Delegated APIs (UI authentication)
- API security using JWT access tokens
- No logout possible
- API security using introspection
- Logout with the revocation endpoint
- API security using cookies
Application APIs (no user)
- OAuth2 Resource Owner Credentials Flow
- Microsoft Identity Platform
On behalf of flow
APIs protected with Client/server certificate authentication
Azure Continuous access & continuous access evaluation protected APIs
General API security topics
Mixing auth, no auth APIs in an application
Using Swagger with protected APIs
Using multiple IDPs in an API service
Mixing UIs and APIs in an application
SignalR, web sockets
- Web sockets protected with cookies
- Web sockets protected with tokens
Testing secure APIs
- Testing application APIs
- Testing delegated APIs
- UI test tools
Legacy, unsecure flows, using network security
- What about shared access signature (SAS) tokens?
- What about username & password to get an access token?
- Firewalls, Gateways?
Examples identity provider clients:
OIDC clients
OpenIddict with Razor Pages, Blazor WASM BFF and Angular OpenID Connect Code Flow with PKCE clients and ASP.NET Core APIs
https://github.com/damienbod/AspNetCoreOpeniddict
Differrent ASP.NET Core applications using OpenID Connect Hybrid flow Code Flow, Code Flow with PKCE, JWT APIs, Device Code flow. Force ASP.NET Core OpenID Connect client to require MFA. Send MFA signin requirement to OpenID Connect server using ASP.NET Core Identity and IdentityServer4. Requiring MFA for Admin Pages in an ASP.NET Core Identity application. Require user password verification with ASP.NET Core Identity to access Razor Page
https://github.com/damienbod/AspNetCoreHybridFlowWithApi
Auth0 with Angular and an ASP.NET Core API
https://github.com/damienbod/Auth0AngularAspNetCoreApi
Securing Blazor Web assembly using Cookies and Auth0, securing multiple Auth0 APIs in ASP.NET Core using OAuth Bearer tokens, securing OAuth Bearer tokens from multiple Identity Providers in an ASP.NET Core API
https://github.com/damienbod/SeparatingApisPerSecurityLevel
Securing an ASP.NET Core API which uses multiple access tokens, securing a Web API using multiple token servers
https://github.com/damienbod/ApiJwtWithTwoSts
Azure AD, Azure AD B2C clients, Continuous Access
Azure samples: ASP.NET Core Web App which lets sign-in users (including in your org, many orgs, orgs + personal accounts, sovereign clouds) and call Web APIs (including Microsoft Graph)
https://github.com/Azure-Samples/active-directory-aspnetcore-webapp-openidconnect-v2/
Azure AD flows using ASP.NET Core and Microsoft.Identity for user, application aunthentication, authorization.
https://github.com/damienbod/AzureADAuthRazorUiServiceApiCertificate
Examples of implementing UIs, APIs using Azure AD as the token server with Angular, ASP.NET Core clients
https://github.com/damienbod/AzureAD-Auth-MyUI-with-MyAPI
Azure AD Continuous Access in an ASP.NET Core Razor Page app using a Web API, Azure AD Continuous Access (CA) step up with ASP.NET Core Blazor using a Web API, Azure AD Continuous Access (CA) standalone with Blazor ASP.NET Core, Force MFA in Blazor using Azure AD and Continuous Access
https://github.com/damienbod/AspNetCoreAzureADCAE
Securing ASP.NET Core Razor, Web APIs with Azure B2C external and Azure AD internal identities. Using Azure security groups in ASP.NET Core with an Azure B2C Identity Provider. Create Azure B2C users with Microsoft Graph and ASP.NET Core. Transforming identity claims in ASP.NET Core and Cache. Onboarding new users in an ASP.NET Core application using Azure B2C. Using multiple Azure B2C user flows from ASP.NET Core
https://github.com/damienbod/azureb2c-fed-azuread
PWA with Blazor Backend for frontend (BFF) and Azure B2C
https://github.com/damienbod/PwaBlazorBffAzureB2C
Add extra claims to an Azure B2C user flow using API connectors and ASP.NET Core. Implement certificate authentication in ASP.NET Core for an Azure B2C API connector
https://github.com/damienbod/AspNetCoreB2cExtraClaims
Links:
Different links for security which can be used with ASP.NET Core.
Docs
https://docs.microsoft.com/en-us/aspnet/core/security/
GRPC
https://docs.microsoft.com/en-us/aspnet/core/grpc/authn-and-authz
Microsoft Graph
https://docs.microsoft.com/en-us/graph/overview?view=graph-rest-1.0
https://github.com/damienbod/AspNetCoreBlazorMicrosoftGraph
https://github.com/damienbod/TeamsAdminUI
YARP reverse proxy
https://github.com/microsoft/reverse-proxy
Data Encryption, Certificates, Identity
https://github.com/damienbod/SendingEncryptedData
https://github.com/damienbod/AspNetCoreCertificates
FIDO2
https://github.com/passwordless-lib/fido2-net-lib
https://github.com/damienbod/AspNetCoreIdentityFido2Mfa
Microsoft.Identity.Web
https://github.com/AzureAD/microsoft-identity-web
OpenIddict
https://github.com/openiddict/openiddict-core
Keycloak
https://github.com/tuxiem/AspNetCore-keycloak
DuendeSoftware
https://github.com/DuendeSoftware
Auth0
Blazor BFF
https://github.com/damienbod/Blazor.BFF.OpenIDConnect.Template
https://github.com/damienbod/Blazor.BFF.AzureAD.Template
https://github.com/damienbod/Blazor.BFF.AzureB2C.Template
https://github.com/DuendeSoftware/BFF
Session protection
https://github.com/andrewlock/NetEscapades.AspNetCore.SecurityHeaders
Self soverign identity (SSI), Azure VC
https://github.com/Azure-Samples/active-directory-verifiable-credentials-dotnet
https://github.com/swiss-ssi-group
Azure Functions security
https://github.com/damienbod/AzureFunctionsSecurity
Certification authentication
https://docs.microsoft.com/en-us/aspnet/core/security/authentication/certauth
https://docs.microsoft.com/en-us/aspnet/core/grpc/authn-and-authz#client-certificate-authentication