fix azure pipeline

fix azure pipeline's whitespace error + removing unused using

Author: googyi

Src/Fido2/AuthenticatorResponse.cs

@@ -1,7 +1,6 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Text;
 using System.Text.Json;
 using System.Text.Json.Serialization;
 

Src/Fido2/TrustAnchor.cs

@@ -1,65 +1,65 @@
-using System;
-using System.Linq;
-using System.Security.Cryptography.X509Certificates;
-
-using Fido2NetLib.Exceptions;
-
-namespace Fido2NetLib;
-
-public static class TrustAnchor
-{
-    public static void Verify(MetadataBLOBPayloadEntry? metadataEntry, X509Certificate2[] trustPath, bool conformance)
-    {
-        if (trustPath != null && metadataEntry?.MetadataStatement?.AttestationTypes is not null)
-        {
-            static bool ContainsAttestationType(MetadataBLOBPayloadEntry entry, MetadataAttestationType type)
-            {
-                return entry.MetadataStatement.AttestationTypes.Contains(type.ToEnumMemberValue());
-            }
-
-            // If the authenticator's metadata requires basic full attestation, build and verify the chain
-            if (ContainsAttestationType(metadataEntry, MetadataAttestationType.ATTESTATION_BASIC_FULL) ||
-                ContainsAttestationType(metadataEntry, MetadataAttestationType.ATTESTATION_PRIVACY_CA))
-            {
-                string[] certStrings = metadataEntry.MetadataStatement.AttestationRootCertificates;
-                var attestationRootCertificates = new X509Certificate2[certStrings.Length];
-
-                for (int i = 0; i < attestationRootCertificates.Length; i++)
-                {
-                    attestationRootCertificates[i] = new X509Certificate2(Convert.FromBase64String(certStrings[i]));
-                }
-
-                if (trustPath.Length > 1 && attestationRootCertificates.Any(c => string.Equals(c.Thumbprint, trustPath[^1].Thumbprint, StringComparison.Ordinal)))
+using System;
+using System.Linq;
+using System.Security.Cryptography.X509Certificates;
+
+using Fido2NetLib.Exceptions;
+
+namespace Fido2NetLib;
+
+public static class TrustAnchor
+{
+    public static void Verify(MetadataBLOBPayloadEntry? metadataEntry, X509Certificate2[] trustPath, bool conformance)
+    {
+        if (trustPath != null && metadataEntry?.MetadataStatement?.AttestationTypes is not null)
+        {
+            static bool ContainsAttestationType(MetadataBLOBPayloadEntry entry, MetadataAttestationType type)
+            {
+                return entry.MetadataStatement.AttestationTypes.Contains(type.ToEnumMemberValue());
+            }
+
+            // If the authenticator's metadata requires basic full attestation, build and verify the chain
+            if (ContainsAttestationType(metadataEntry, MetadataAttestationType.ATTESTATION_BASIC_FULL) ||
+                ContainsAttestationType(metadataEntry, MetadataAttestationType.ATTESTATION_PRIVACY_CA))
+            {
+                string[] certStrings = metadataEntry.MetadataStatement.AttestationRootCertificates;
+                var attestationRootCertificates = new X509Certificate2[certStrings.Length];
+
+                for (int i = 0; i < attestationRootCertificates.Length; i++)
+                {
+                    attestationRootCertificates[i] = new X509Certificate2(Convert.FromBase64String(certStrings[i]));
+                }
+
+                if (trustPath.Length > 1 && attestationRootCertificates.Any(c => string.Equals(c.Thumbprint, trustPath[^1].Thumbprint, StringComparison.Ordinal)))
+                {
+                    throw new Fido2VerificationException(Fido2ErrorMessages.InvalidCertificateChain);
+                }
+
+                if (!CryptoUtils.ValidateTrustChain(trustPath, attestationRootCertificates, conformance))
                 {
                     throw new Fido2VerificationException(Fido2ErrorMessages.InvalidCertificateChain);
-                } 
-
-                if (!CryptoUtils.ValidateTrustChain(trustPath, attestationRootCertificates, conformance))
-                {
-                    throw new Fido2VerificationException(Fido2ErrorMessages.InvalidCertificateChain);
-                }
-            }
-
-            else if (ContainsAttestationType(metadataEntry, MetadataAttestationType.ATTESTATION_ANONCA))
-            {
-                // skip verification for Anonymization CA (AnonCA)
-            }
-            else // otherwise, ensure the certificate is self signed
-            {
-                var trustPath0 = trustPath[0];
-
-                if (!string.Equals(trustPath0.Subject, trustPath0.Issuer, StringComparison.Ordinal))
-                {
-                    // TODO: Improve this error message
-                    throw new Fido2VerificationException("Attestation with full attestation from authenticator that does not support full attestation");
-                }
-            }
-
-            // TODO: Verify all MetadataAttestationTypes are correctly handled
-
-            // [ ] ATTESTATION_ECDAA "ecdaa"    | currently handled as self signed  w/ no test coverage
-            // [ ] ATTESTATION_ANONCA "anonca"  | currently not verified            w/ no test coverage
-            // [ ] ATTESTATION_NONE "none"      | currently handled as self signed  w/ no test coverage               
-        }
-    }
-}
+                }
+            }
+
+            else if (ContainsAttestationType(metadataEntry, MetadataAttestationType.ATTESTATION_ANONCA))
+            {
+                // skip verification for Anonymization CA (AnonCA)
+            }
+            else // otherwise, ensure the certificate is self signed
+            {
+                var trustPath0 = trustPath[0];
+
+                if (!string.Equals(trustPath0.Subject, trustPath0.Issuer, StringComparison.Ordinal))
+                {
+                    // TODO: Improve this error message
+                    throw new Fido2VerificationException("Attestation with full attestation from authenticator that does not support full attestation");
+                }
+            }
+
+            // TODO: Verify all MetadataAttestationTypes are correctly handled
+
+            // [ ] ATTESTATION_ECDAA "ecdaa"    | currently handled as self signed  w/ no test coverage
+            // [ ] ATTESTATION_ANONCA "anonca"  | currently not verified            w/ no test coverage
+            // [ ] ATTESTATION_NONE "none"      | currently handled as self signed  w/ no test coverage               
+        }
+    }
+}