Merge pull request #148 from microsoft/users/jstatia/azure_trusted_signing

Users/jstatia/azure trusted signing

Author: elantiguamsft

.github/workflows/dotnet.yml

@@ -62,6 +62,7 @@ jobs:
           dotnet build --configuration Debug CoseSignTool.sln
           dotnet test --no-restore CoseSign1.Tests/CoseSign1.Tests.csproj
           dotnet test --no-restore CoseSign1.Certificates.Tests/CoseSign1.Certificates.Tests.csproj
+          dotnet test --no-restore CoseSign1.Certificates.AzureTrustedSigning.Tests/CoseSign1.Certificates.AzureTrustedSigning.Tests.csproj
           dotnet test --no-restore CoseSign1.Headers.Tests/CoseSign1.Headers.Tests.csproj
           dotnet test --no-restore CoseIndirectSignature.Tests/CoseIndirectSignature.Tests.csproj
           dotnet test --no-restore CoseSign1.Transparent.Tests/CoseSign1.Transparent.Tests.csproj

CHANGELOG.md

@@ -1,5 +1,13 @@
 # Changelog
 
+## [Unreleased](https://github.com/microsoft/CoseSignTool/tree/HEAD)
+
+[Full Changelog](https://github.com/microsoft/CoseSignTool/compare/v1.6.3...HEAD)
+
+**Merged pull requests:**
+
+- Users/jstatia/package upgrades [\#145](https://github.com/microsoft/CoseSignTool/pull/145) ([JeromySt](https://github.com/JeromySt))
+
 ## [v1.6.3](https://github.com/microsoft/CoseSignTool/tree/v1.6.3) (2025-08-05)
 
 [Full Changelog](https://github.com/microsoft/CoseSignTool/compare/v1.6.5...v1.6.3)

CoseSign1.Abstractions/Interfaces/ICoseSigningKeyProvider.cs

@@ -38,6 +38,13 @@ public interface ICoseSigningKeyProvider
     /// <returns>List of AsymmetricAlgorithm representing the key chain, or empty list if no chain is available</returns>
     public IReadOnlyList<AsymmetricAlgorithm> KeyChain { get; }
 
+    /// <summary>
+    /// Gets the issuer identifier for this signing key provider.
+    /// For certificate-based providers, this typically returns a DID:X509 identifier derived from the certificate chain.
+    /// For other providers, this may return null or a provider-specific identifier.
+    /// </summary>
+    public string? Issuer { get; }
+
     /// <summary>
     /// Returns the Protected Headers
     /// </summary>