Stage 1b. Still no enforcement wired — this adds the credential model the
identity cutover (stage 2) will read.
ApiKey holds one principal per key, deliberately. The reason to separate keys
from principals is so many keys share a grant set and rotating a key never
touches an ACL row, and that holds with one principal per key since nothing stops
two keys naming the same principal. A key belonging to several principals at once
buys little and costs a join table. UserAuthorizationState.Principals stays a
list, so adding it later needs no ACL-side change.
ApiKeySecret is the security-critical half and is pure, so it is tested on its
own: otua_<keyId>_<secret>, peppered HMAC-SHA256, FixedTimeEquals. Notes why a
plain HMAC rather than an iterated KDF (the secret is 32 bytes of CSPRNG, and the
call runs inline on session activation, which the SDK serializes server-wide
behind its SessionManager event lock), and fails closed on an unset pepper rather
than hashing under an empty key.
Found and fixed a bug in my own first draft: the key id was url-safe base64,
whose alphabet maps '/' to '_' — the very character TryParse splits on. Roughly
one key in five would have had its id truncated at a random position, an
intermittent auth failure reproducing only for SOME keys. The id is hex now, and
the guard is falsified: reverting the alphabet reds both
The_generated_key_id_never_contains_the_separator and, as a bonus signal,
Two_generated_keys_never_collide, because truncated ids collide.
ApiKeyId is NOT NULL, unlike the nullable NodeAclId precedent whose filtered
unique index would admit two NULL ids. Fine for a config row, not for a
credentials lookup key.
OpcUaServer.csproj now references Core. Until now it did not, so
IPermissionEvaluator was literally uncallable from the node manager — the place
enforcement has to happen. No new transitive package surface.
Schema doc updated for both, and its NodeAcl block flagged for pre-existing drift
(it still documents the GenerationId column v3 dropped) without fixing it here.
Core 247, OpcUaServer 364, Configuration 128 — all green.
Claude-Session: https://claude.ai/code/session_015p7wGqy3YpZNCpDzTpGMKo
All five suppressed advisories are now resolved at baseline/resolved versions,
so every NuGetAuditSuppress is removed repo-wide:
- System.Security.Cryptography.Xml (GHSA-37gx-xxp4-5rgx / GHSA-w3x6-4m5h-cxqf)
-> fixed by the .NET 10 baseline (10.0.6)
- OPCFoundation Opc.Ua.Core (GHSA-h958-fxgg-g7w3) -> fixed at resolved 1.5.378.106
Two were still live and are now patched via direct security pins:
- OpenTelemetry.Api 1.9.0 -> 1.15.3 (GHSA-g94r-2vxg-569j) pinned in Cluster;
Runtime/ControlPlane/AdminUI + tests inherit via project reference
- Tmds.DBus.Protocol 0.20.0 -> 0.21.3 (GHSA-xrw6-gwf8-vvr9) pinned in Client.UI
Also correct the Historian sidecar runtime comments (x86 -> x64, matching the
csproj PlatformTarget). Solution audit: 0 vulnerable packages; full build clean.
Opc.Ua.Server was pinned 1.5.374.126 while Client/Configuration were 1.5.378.106, so the
published Host unified Opc.Ua.Core to 1.5.378 (which dropped Opc.Ua.INodeIdFactory that Server
1.5.374 referenced). Every driver-role node (and the fused site nodes) failed to start the OPC
UA server with TypeLoadException, leaving the OPC data plane dead and the site UIs at 503.
Align all OPC UA packages to 1.5.378.106 (bump Server; drop the Opc.Ua.Configuration/Client
VersionOverrides in OpcUaServer + its integration tests) and port the server host to the
1.5.378 async API:
- ApplicationInstance requires an ITelemetryContext ctor (DefaultTelemetry.Create)
- Start/Stop/LoadApplicationConfiguration/Validate -> async; CheckApplicationInstanceCertificate
-> CheckApplicationInstanceCertificatesAsync
- ImpersonateEventHandler is now (ISession, ImpersonateEventArgs)
- UserNameIdentityToken.DecryptedPassword is now byte[] (UTF-8 decode)
- tests ported (byte[] passwords; async discovery/session/read client API)
Verified: full solution builds, OpcUaServer unit tests 52/52, and in docker-dev all six OPC
endpoints (4840-4845) listen and the site UIs return 302 (were 503). End-to-end OPC behaviour
(read/write/subscribe/security under 1.5.378) still needs a functional client test.
OpcUaApplicationHost.BuildConfigurationAsync now populates
ServerConfiguration.SecurityPolicies + UserTokenPolicies from the new
OpcUaSecurityProfile enum on OpcUaApplicationHostOptions. Defaults expose
all three baseline profiles (None + Basic256Sha256-Sign +
Basic256Sha256-SignAndEncrypt) matching docs/security.md. UserName tokens
are SDK-encrypted with the server cert so they work on None endpoints too;
F13c will plug the LDAP validator into SessionManager.
AutoAcceptUntrustedClientCertificates surfaces as an option for dev flows;
production keeps the default (false) and operators promote rejected certs
through the Admin UI.
InternalsVisibleTo added so BuildSecurityPolicies / BuildUserTokenPolicies
stay encapsulated but unit-testable. 6 new tests cover the pure builders +
two boot-verify cases (3-profile default + hardened single-profile),
bringing the suite to 34 / 34 passing.
Closes#103. Unblocks #104 (F13c LDAP user-token validator).
Adds the empty project skeletons that subsequent v2 tasks fill in:
src/Core/ZB.MOM.WW.OtOpcUa.Commons (types, interfaces, message contracts)
src/Core/ZB.MOM.WW.OtOpcUa.Cluster (Akka.Hosting + cluster wiring)
src/Server/ZB.MOM.WW.OtOpcUa.Security (cookie+JWT auth, LDAP)
src/Server/ZB.MOM.WW.OtOpcUa.ControlPlane (admin-role cluster singletons)
src/Server/ZB.MOM.WW.OtOpcUa.Runtime (per-node driver actors)
src/Server/ZB.MOM.WW.OtOpcUa.OpcUaServer (OPC UA SDK application host)
src/Server/ZB.MOM.WW.OtOpcUa.AdminUI (Razor class library)
src/Server/ZB.MOM.WW.OtOpcUa.Host (single fused web binary)
Each project sets TreatWarningsAsErrors=true in its own csproj (per the
Directory.Build.props deviation note in the previous commit). NuGetAuditSuppress
entries cover transitive vulnerability advisories the new strictness surfaces:
- GHSA-g94r-2vxg-569j (OpenTelemetry.Api 1.9.0 via Akka.Cluster.Hosting/Tools)
- GHSA-h958-fxgg-g7w3 (Opc.Ua.Core 1.5.374.126 via OpcUaServer)
- GHSA-37gx-xxp4-5rgx + GHSA-w3x6-4m5h-cxqf (legacy advisories already accepted)
OpcUaServer pins OPCFoundation.NetStandard.Opc.Ua.Configuration to 1.5.374.126
via VersionOverride to match Opc.Ua.Server's transitive Opc.Ua.Core (same
constraint as the legacy Server project).
Runtime does NOT project-reference any concrete Driver.* assemblies; drivers
load reflectively at runtime (Phase 6). Runtime gets the IDriver contract
through Core.Abstractions instead.
Host's Microsoft.Extensions.Hosting.WindowsServices is conditional on the
Windows OS so the project builds on macOS dev machines.
Build verification: dotnet build -> 438 warnings (all pre-existing xUnit1051
in legacy Server.Tests/Admin.Tests), 0 errors. Closes Task 9 (build green
smoke check, no separate commit).
Joseph Doherty