stabilizaiton work - projects rework for maintenanceability and ui livening

src/__Libraries/__Tests/StellaOps.Cryptography.Kms.Tests/CloudKmsClientTests.Fixture.Ecdsa.cs

@@ -0,0 +1,25 @@
+using System.Security.Cryptography;
+
+namespace StellaOps.Cryptography.Kms.Tests;
+
+public sealed partial class CloudKmsClientTests
+{
+    private sealed class EcdsaFixture : IDisposable
+    {
+        private readonly ECDsa _ecdsa = ECDsa.Create(ECCurve.NamedCurves.nistP256);
+
+        public ECParameters Parameters => _ecdsa.ExportParameters(true);
+
+        public byte[] PublicSubjectInfo => _ecdsa.ExportSubjectPublicKeyInfo();
+
+        public byte[] SignDigest(ReadOnlySpan<byte> digest) => _ecdsa.SignHash(digest.ToArray());
+
+        public bool VerifyDigest(ReadOnlySpan<byte> digest, ReadOnlySpan<byte> signature)
+            => _ecdsa.VerifyHash(digest.ToArray(), signature.ToArray());
+
+        public void Dispose()
+        {
+            _ecdsa.Dispose();
+        }
+    }
+}