Stratara.Security 4.7.1

Prefix Reserved
.NET 10.0 This package targets .NET 10.0. The package is compatible with this framework or higher.
There is a newer version of this package available.
See the version list below for details. 
dotnet add package Stratara.Security --version 4.7.1
                    


                    

                
NuGet\Install-Package Stratara.Security -Version 4.7.1
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="Stratara.Security" Version="4.7.1" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Stratara.Security" Version="4.7.1" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="Stratara.Security" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add Stratara.Security --version 4.7.1
                    


                    

                
#r "nuget: Stratara.Security, 4.7.1"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package Stratara.Security@4.7.1
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=Stratara.Security&version=4.7.1
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Stratara.Security&version=4.7.1
                    


                            Install as a Cake Tool

Stratara.Security

Derived. The behaviour described here is specified under openspec/specs/. Those specifications are the source; this page explains and illustrates them.

License: MIT.

Dependency-light key store and envelope encryption for Stratara. Provides a production IKeyStore with KEK-wrapped, versioned per-scope data-encryption keys (rotation, revoke, and crypto-shred), a file-backed master-key provider, and an AES-GCM blob encryptor — referencing only Stratara.Abstractions + BCL crypto. No EF Core, RabbitMQ, Redis, or cloud SDKs in the graph.

Quick start

// appsettings / secrets:
// "Stratara": { "KeyStore": { "MasterKeyBase64": "<openssl rand -base64 32>", "StorePath": "/var/run/secrets/keystore.json" } }

builder.Services.AddStrataraFileKeyStore(builder.Configuration);

// Encrypt a blob bound to a tenant scope + purpose:
var scope = new KeyScope(DataSensitivityLevel.TenantScoped, TenantId: "acme-corp");
await using var encrypted = await encryptor.EncryptAsync(plainStream, scope, purpose: "attachment");
await using var plain = await encryptor.DecryptAsync(encrypted, scope);

What's inside

  • EnvelopeFileKeyStore (IKeyStore) — random 32-byte DEK per scope/version, KEK-wrapped with AES-256-GCM (wrap AAD bound to the key id, so a wrapped DEK can't be moved to another scope). The store file holds only wrapped DEKs + metadata, never plaintext. RotateAsync adds a version; RevokeAsync makes one version undecryptable; EraseScopeAsync deletes all versions for a scope (GDPR Art. 17 crypto-shred); MarkSubjectErasedAsync records an erased subject in the file, and every scope it covers is refused with KeyScopeErasedException from then on. DEKs are zeroed after use; the store file is written 0600 on Unix. Every process sharing one file runs the same release.
  • FileMasterKeyProvider (IMasterKeyProvider) — KEK from MasterKeyBase64, validated to decode to exactly 32 bytes (AES-256) at startup. The custody seam: swap for an HSM / KMS / vault provider later without touching the stored data.
  • AesGcmSecureBlobEncryptor (ISecureBlobEncryptor) — AES-GCM stream encryption with a purpose-bound AAD ({tenant}||{purpose}) and a versioned, self-describing format (v2 leading byte). Reads legacy streams without the version byte; set Stratara:BlobEncryption:LegacyBlobsCarryPurpose to match the legacy layout.
  • DummyKeyStore — Development-only deterministic fallback (throws outside Development).

Key id schema

{level}:{tenant}:{user}:v{N} — e.g. TenantScoped:acme-corp::v1. GetOrCreateCurrentKeyAsync returns the highest non-revoked version (creating v1 if none); RotateAsync creates v{N+1}.

Dependencies

  • Stratara.Abstractions
  • Stratara.Diagnostics
  • Microsoft.Extensions.{Configuration,DependencyInjection,Hosting,Logging}.Abstractions
  • Microsoft.Extensions.Options (+ Options.ConfigurationExtensions)
Product Compatible and additional computed target framework versions.
.NET net10.0 is compatible.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (2)

Showing the top 2 NuGet packages that depend on Stratara.Security:

Package Downloads
Stratara.Infrastructure

Infrastructure glue for the Stratara framework — authorization decorators, configuration providers, and DI composition helpers that wire Mediator, Outbox, Identity, and EF Core into a hosted app.
Stratara.Testing

Test doubles and assertion helpers for applications built on the Stratara framework — an in-memory IKeyStore, an in-memory IMessageBus, in-memory membership/setting/API-key stores, a preset ISessionContextProvider, deterministic tenant ids, and a given/when/then aggregate rehydration harness. Drop the Postgres/RabbitMQ testcontainers for unit tests.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
4.8.0 169 11/6/2026
4.7.1 145 11/5/2026
4.7.0 611 10/30/2026
4.6.1 151 10/29/2026
4.6.0 245 10/28/2026
4.5.0 317 10/28/2026
4.4.10 256 10/26/2026
4.4.9 159 10/26/2026
4.4.8 301 10/24/2026
4.4.7 169 10/23/2026
4.4.6 289 10/22/2026
4.4.5 719 10/14/2026
4.4.4 442 10/10/2026
4.4.3 176 10/10/2026
4.4.2 527 10/2/2026
4.4.1 484 9/29/2026
4.4.0 206 9/27/2026
4.3.1 277 9/25/2026
4.3.0 450 9/23/2026
4.2.0 220 9/18/2026
Loading failed

A patch for the shared identity store: single roles of a membership can now change without losing a concurrent
change, and a fresh store's first migration no longer logs a spurious error.

### Added

- **`ITenantMembershipStore.AddRolesAsync` and `RemoveRolesAsync`** give or take single roles of one membership,
 leaving its other roles and its status as they are, and return the membership afterwards (`null` where there is
 none — neither creates one). On the framework's stores two overlapping role changes to the same membership both
 take effect; a store that keeps losing to concurrent writers throws `InvalidOperationException` instead of dropping
 the change. No schema change. Both are default interface methods, so a store you implemented yourself keeps
 compiling and gets them as a read followed by a whole write — without protection against a concurrent writer.
 `TenantMembership.WithRolesAdded` and `WithRolesRemoved` compute the changed role set.

### Fixed

- **`MigrateStrataraIdentityStoreAsync()` no longer logs an `Error` on a fresh database.** The first migration of an
 empty identity store logged a failed read of its migration history table from
 `Microsoft.EntityFrameworkCore.Database.Command`, although the migration then succeeded. The database, the schema and
 the history table are now created before the migrations run, so a first start logs nothing at `Error` or above —
 also when several hosts start against an empty store at once.