# Description
Introduces a pluggable user-identity provider model covering all OPC UA
Part 6 §6.5 mechanisms (Anonymous, UserName, X509, IssuedToken/JWT) on
both client and server, with full
`Microsoft.Extensions.DependencyInjection` integration, plus the Part 12
§9 `AuthorizationService` two-phase token-request flow **including
refresh-token rotation**, the Part 12 §8 KeyCredential Push model, and a
clean provider model for OPC 10000-12 §7.2 `ApplicationSelfAdmin`. The
work is split across phase-by-phase commits so it can be reviewed
independently; nothing here changes wire-level behaviour or forces
existing applications to migrate.
### Documentation
All under `Docs/`:
- `IdentityProviders.md` — full developer guide: three-layer model,
recipes, configuration reference, "what gets auto-wired" matrix, JWS
algorithm table, identity-augmenters section, **"Implementing your own
provider"** how-to subsections for Entra / OIDC / Windows / AspNetCore
(sibling files merged in per review feedback).
- `DependencyInjection.md` — `Identity` sections with `appsettings.json`
examples, identity-extension matrix, `WithAuthorizationService` +
`WithKeyCredentialPush` + `AddIdentityAugmenter` extensions documented.
- `RoleBasedUserManagement.md` — claim-criteria callout describing
`IIdentityClaims` probe surface.
- `AuthorizationService.md` — Architecture diagram +
`IAccessTokenProvider` conceptual narrative restored from master; modern
`StartRequestToken` / `FinishRequestToken` flow leads; refresh-token
recipe added.
- `KeyCredentialService.md` — Push model + Pull vs Push vs Bridge
decision matrix + Hybrid (Push + Pull) section; explicit experimental
warning for the bridge.
- `GDS.md` — KeyCredential Push, `StartRequestToken`,
`GdsApplicationSelfAdminProvider`, **shipped Refresh-token support with
rotation policy and audit semantics** all documented.
- `MigrationGuide.md` — User Identity Providers section listing
`[Obsolete]` markers + mechanical recipes; SelfAdmin migration via
`IIdentityAugmenter`; `EnableRefreshTokens` default note.
- `README.md` index entries.
## Checklist
- [x] I have signed the
[CLA](https://opcfoundation.org/license/cla/ContributorLicenseAgreementv1.0.pdf)
and read the
[CONTRIBUTING](https://github.com/OPCFoundation/UA-.NETStandard/blob/master/CONTRIBUTING.md)
doc.
- [x] I have added tests that prove my fix is effective or that my
feature works and increased code coverage.
- [x] I have added all necessary documentation.
- [x] I have verified that my changes do not introduce (new) build or
analyzer warnings.
- [x] I ran **all** tests locally using the **UA.slnx** solution against
at least .net **framework** and .net **10**, and all passed.
- [x] I fixed **all** failing and flaky tests in the CI pipelines and
**all** CodeQL warnings.
- [x] I have addressed **all** PR feedback received.
Drive the solution to zero warnings / zero errors with analyzers on,
promote the consistently-fixed rules to error, and lock in coverage
on the only line of new logic.
* New certificate and secrete abstraction with certificate infrastructure and certificate/secret stores.
* leak testing for certificate resources to validate new ref counting in every test assembly
* Migration guide updated and documentation added for all
* Remove IDisposable from Nodestate and UserIdentity.
* UserCertificateTokenHandler now just points into certificate registry/stores, no dispose required
* Fix CA2000 warnings and cleanup of other diagnostics, increase warning levels in .editorconfig
* enable nrts for CertificatIdentifier&CertificateStoreIdentifier&CertificateTrustList
* make RSA Utils and Certificate Stores nullable
* Make Certificate validator nullable
* fix nullability of CertificateTypeParameter
Headers incorrectly state that the RCL applies to members, however the OPC Source Deliverables license states RCL is applicable only to corporate members.
The OPC Foundation Technical Control Board on March 30th decided on the following changes with regard of the license headers:
• Change the dual license in the source files so that “members” are replaced with “corporate members”.
Co-authored-by: Suciu Mircea Adrian <Mircea-Adrian.Suciu@softing.com>
- Use updated Modelcompiler code generator to produce code which has no dependency on System.Servicemodel
- breaking change, .NET stack which used the NET_STANDARD version have to fix dependencies on System.Servicemodel
- new codegenerator also provides stubs for async client API (NET_STANDARD_ASYNC), currently disabled
- latest V1.04.9 Nodeset
- remove use of Bouncy Castle for .NET Core 3
- refactor CreateCertificate class to allow for an easier Create fluent model with respect to future extensions, e.g. ECC
- reimplement X509CRL and a couple of extension relevant for OPC UA based on the new System.Formats.Asn1 library
- use CertificateRequest on .NET Core 3.1
- refactor codebase to allow for a seperate library to handle all the ASN.1 encoding/decoding
- new package Opc.Ua.Security.Certificates with all ASN.1 encode/decode related code
breaking change: many X509 related util functions were moved to X509Utils class
Note: .NET 4.6.2 and .NET Core 2.1 versions still use BouncyCastle for Cert creation
Marc Schier