Wrap arguments into classes

BlazorWasmDemo/Server/Controllers/UserController.cs

@@ -150,7 +150,12 @@ public async Task<string> CreateCredentialAsync([FromRoute] string username, [Fr
             // 2. Create callback so that lib can verify credential id is unique to this user
 
             // 3. Verify and make the credentials
-            var credential = await _fido2.MakeNewCredentialAsync(attestationResponse, options, CredentialIdUniqueToUserAsync, cancellationToken: cancellationToken);
+            var credential = await _fido2.MakeNewCredentialAsync(new MakeNewCredentialParams
+            {
+                AttestationResponse = attestationResponse,
+                OriginalOptions = options,
+                IsCredentialIdUniqueToUserCallback = CredentialIdUniqueToUserAsync
+            }, cancellationToken: cancellationToken);
 
             // 4. Store the credentials in db
             _demoStorage.AddCredentialToUser(options.User, new StoredCredential
@@ -266,14 +271,15 @@ public async Task<string> MakeAssertionAsync([FromBody] AuthenticatorAssertionRa
             var creds = _demoStorage.GetCredentialById(clientResponse.Id) ?? throw new Exception("Unknown credentials");
 
             // 3. Make the assertion
-            var res = await _fido2.MakeAssertionAsync(
-                clientResponse,
-                options,
-                creds.PublicKey,
-                creds.DevicePublicKeys,
-                creds.SignCount,
-                UserHandleOwnerOfCredentialIdAsync,
-                cancellationToken: cancellationToken);
+            var res = await _fido2.MakeAssertionAsync(new MakeAssertionParams
+            {
+                AssertionResponse = clientResponse,
+                OriginalOptions = options,
+                StoredPublicKey = creds.PublicKey,
+                StoredSignatureCounter = creds.SignCount,
+                IsUserHandleOwnerOfCredentialIdCallback = UserHandleOwnerOfCredentialIdAsync,
+                StoredDevicePublicKeys = creds.DevicePublicKeys
+            }, cancellationToken: cancellationToken);
 
             // 4. Store the updated counter
             _demoStorage.UpdateCounter(res.CredentialId, res.SignCount);

Demo/Controller.cs

@@ -106,7 +106,12 @@ public async Task<JsonResult> MakeCredential([FromBody] AuthenticatorAttestation
             };
 
             // 2. Verify and make the credentials
-            var credential = await _fido2.MakeNewCredentialAsync(attestationResponse, options, callback, cancellationToken: cancellationToken);
+            var credential = await _fido2.MakeNewCredentialAsync(new MakeNewCredentialParams
+            {
+                AttestationResponse = attestationResponse,
+                OriginalOptions = options,
+                IsCredentialIdUniqueToUserCallback = callback
+            }, cancellationToken: cancellationToken);
 
             // 3. Store the credentials in db
             DemoStorage.AddCredentialToUser(options.User, new StoredCredential
@@ -204,7 +209,15 @@ public async Task<JsonResult> MakeAssertion([FromBody] AuthenticatorAssertionRaw
             };
 
             // 5. Make the assertion
-            var res = await _fido2.MakeAssertionAsync(clientResponse, options, creds.PublicKey, creds.DevicePublicKeys, storedCounter, callback, cancellationToken: cancellationToken);
+            var res = await _fido2.MakeAssertionAsync(new MakeAssertionParams
+            {
+                AssertionResponse = clientResponse,
+                OriginalOptions = options,
+                StoredPublicKey = creds.PublicKey,
+                StoredSignatureCounter = storedCounter,
+                IsUserHandleOwnerOfCredentialIdCallback = callback,
+                StoredDevicePublicKeys = creds.DevicePublicKeys
+            }, cancellationToken: cancellationToken);
 
             // 6. Store the updated counter
             DemoStorage.UpdateCounter(res.CredentialId, res.SignCount);

Demo/TestController.cs

@@ -95,7 +95,12 @@ public async Task<OkObjectResult> MakeCredentialResultTestAsync([FromBody] Authe
         };
 
         // 2. Verify and make the credentials
-        var credential = await _fido2.MakeNewCredentialAsync(attestationResponse, options, callback, cancellationToken: cancellationToken);
+        var credential = await _fido2.MakeNewCredentialAsync(new MakeNewCredentialParams
+        {
+            AttestationResponse = attestationResponse,
+            OriginalOptions = options,
+            IsCredentialIdUniqueToUserCallback = callback
+        }, cancellationToken: cancellationToken);
 
         // 3. Store the credentials in db
         _demoStorage.AddCredentialToUser(options.User, new StoredCredential
@@ -177,7 +182,15 @@ public async Task<JsonResult> MakeAssertionTestAsync([FromBody] AuthenticatorAss
         };
 
         // 5. Make the assertion
-        var res = await _fido2.MakeAssertionAsync(clientResponse, options, creds.PublicKey, creds.DevicePublicKeys, storedCounter, callback, cancellationToken: cancellationToken);
+        var res = await _fido2.MakeAssertionAsync(new MakeAssertionParams
+        {
+            AssertionResponse = clientResponse,
+            OriginalOptions = options,
+            StoredPublicKey = creds.PublicKey,
+            StoredSignatureCounter = storedCounter,
+            IsUserHandleOwnerOfCredentialIdCallback = callback,
+            StoredDevicePublicKeys = creds.DevicePublicKeys
+        }, cancellationToken: cancellationToken);
 
         // 6. Store the updated counter
         _demoStorage.UpdateCounter(res.CredentialId, res.SignCount);

Src/Fido2/Fido2.cs

@@ -62,21 +62,14 @@ public CredentialCreateOptions RequestNewCredential(
     /// <summary>
     /// Verifies the response from the browser/authenticator after creating new credentials.
     /// </summary>
-    /// <param name="attestationResponse">The attestation response from the authenticator.</param>
-    /// <param name="originalOptions">The original options that was sent to the client.</param>
-    /// <param name="isCredentialIdUniqueToUser">The delegate used to validate that the CredentialID is unique to this user.</param>
-    /// <param name="requestTokenBindingId">DO NOT USE - Deprecated, but kept in code due to conformance testing tool</param>
+    /// <param name="makeNewCredentialParams">Wraps the input parameters for making a new credential</param>
     /// <param name="cancellationToken">The <see cref="CancellationToken"/> used to propagate notifications that the operation should be canceled.</param>
     /// <returns></returns>
-    public async Task<RegisteredPublicKeyCredential> MakeNewCredentialAsync(
-        AuthenticatorAttestationRawResponse attestationResponse,
-        CredentialCreateOptions originalOptions,
-        IsCredentialIdUniqueToUserAsyncDelegate isCredentialIdUniqueToUser,
-        byte[]? requestTokenBindingId = null,
+    public async Task<RegisteredPublicKeyCredential> MakeNewCredentialAsync(MakeNewCredentialParams makeNewCredentialParams,
         CancellationToken cancellationToken = default)
     {
-        var parsedResponse = AuthenticatorAttestationResponse.Parse(attestationResponse);
-        var credential = await parsedResponse.VerifyAsync(originalOptions, _config, isCredentialIdUniqueToUser, _metadataService, requestTokenBindingId, cancellationToken);
+        var parsedResponse = AuthenticatorAttestationResponse.Parse(makeNewCredentialParams.AttestationResponse);
+        var credential = await parsedResponse.VerifyAsync(makeNewCredentialParams.OriginalOptions, _config, makeNewCredentialParams.IsCredentialIdUniqueToUserCallback, _metadataService, makeNewCredentialParams.RequestTokenBindingId, cancellationToken);
 
         return credential;
     }
@@ -101,35 +94,22 @@ public AssertionOptions GetAssertionOptions(
     /// <summary>
     /// Verifies the assertion response from the browser/authenticator to assert existing credentials and authenticate a user.
     /// </summary>
-    /// <param name="assertionResponse">The assertion response from the authenticator.</param>
-    /// <param name="originalOptions">The original options that was sent to the client.</param>
-    /// <param name="storedPublicKey">The stored credential public key.</param>
-    /// <param name="storedDevicePublicKeys">The stored device public keys.</param>
-    /// <param name="storedSignatureCounter">The stored value of the signature counter.</param>
-    /// <param name="isUserHandleOwnerOfCredentialIdCallback">The delegate used to validate that the user handle is indeed owned of the CredentialId.</param>
-    /// <param name="requestTokenBindingId">DO NOT USE - Deprecated, but kept in code due to conformance testing tool</param>
+    /// <param name="makeAssertionParams">Wraps the input arguments for asserting a passkey</param>
     /// <param name="cancellationToken">The <see cref="CancellationToken"/> used to propagate notifications that the operation should be canceled.</param>
     /// <returns></returns>
-    public async Task<VerifyAssertionResult> MakeAssertionAsync(
-        AuthenticatorAssertionRawResponse assertionResponse,
-        AssertionOptions originalOptions,
-        byte[] storedPublicKey,
-        IReadOnlyList<byte[]> storedDevicePublicKeys,
-        uint storedSignatureCounter,
-        IsUserHandleOwnerOfCredentialIdAsync isUserHandleOwnerOfCredentialIdCallback,
-        byte[]? requestTokenBindingId = null,
+    public async Task<VerifyAssertionResult> MakeAssertionAsync(MakeAssertionParams makeAssertionParams,
         CancellationToken cancellationToken = default)
     {
-        var parsedResponse = AuthenticatorAssertionResponse.Parse(assertionResponse);
+        var parsedResponse = AuthenticatorAssertionResponse.Parse(makeAssertionParams.AssertionResponse);
 
-        var result = await parsedResponse.VerifyAsync(originalOptions,
+        var result = await parsedResponse.VerifyAsync(makeAssertionParams.OriginalOptions,
                                                       _config,
-                                                      storedPublicKey,
-                                                      storedDevicePublicKeys,
-                                                      storedSignatureCounter,
-                                                      isUserHandleOwnerOfCredentialIdCallback,
+                                                      makeAssertionParams.StoredPublicKey,
+                                                      makeAssertionParams.StoredDevicePublicKeys,
+                                                      makeAssertionParams.StoredSignatureCounter,
+                                                      makeAssertionParams.IsUserHandleOwnerOfCredentialIdCallback,
                                                       _metadataService,
-                                                      requestTokenBindingId,
+                                                      makeAssertionParams.RequestTokenBindingId,
                                                       cancellationToken);
 
         return result;

Src/Fido2/IFido2.cs

@@ -13,21 +13,10 @@ AssertionOptions GetAssertionOptions(
         UserVerificationRequirement? userVerification,
         AuthenticationExtensionsClientInputs? extensions = null);
 
-    Task<VerifyAssertionResult> MakeAssertionAsync(
-        AuthenticatorAssertionRawResponse assertionResponse,
-        AssertionOptions originalOptions,
-        byte[] storedPublicKey,
-        IReadOnlyList<byte[]> storedDevicePublicKeys,
-        uint storedSignatureCounter,
-        IsUserHandleOwnerOfCredentialIdAsync isUserHandleOwnerOfCredentialIdCallback,
-        byte[]? requestTokenBindingId = null,
+    Task<VerifyAssertionResult> MakeAssertionAsync(MakeAssertionParams makeAssertionParams,
         CancellationToken cancellationToken = default);
 
-    Task<RegisteredPublicKeyCredential> MakeNewCredentialAsync(
-        AuthenticatorAttestationRawResponse attestationResponse,
-        CredentialCreateOptions originalOptions,
-        IsCredentialIdUniqueToUserAsyncDelegate isCredentialIdUniqueToUser,
-        byte[]? requestTokenBindingId = null,
+    Task<RegisteredPublicKeyCredential> MakeNewCredentialAsync(MakeNewCredentialParams makeNewCredentialParams,
         CancellationToken cancellationToken = default);
 
     CredentialCreateOptions RequestNewCredential(

Src/Fido2/MakeAssertionParams.cs

@@ -0,0 +1,46 @@
+using System;
+using System.Collections.Generic;
+
+namespace Fido2NetLib;
+
+/// <summary>
+/// Wraps the input for the MakeAssertion function
+/// </summary>
+public sealed class MakeAssertionParams
+{
+    /// <summary>
+    /// The assertion response from the authenticator.
+    /// </summary>
+    public required AuthenticatorAssertionRawResponse AssertionResponse { get; init; }
+
+    /// <summary>
+    /// The original options that was sent to the client.
+    /// </summary>
+    public required AssertionOptions OriginalOptions { get; init; }
+
+    /// <summary>
+    /// The stored credential public key.
+    /// </summary>
+    public required byte[] StoredPublicKey { get; init; }
+
+    /// <summary>
+    /// The stored value of the signature counter.
+    /// </summary>
+    public required uint StoredSignatureCounter { get; init; }
+
+    /// <summary>
+    /// The delegate used to validate that the user handle is indeed owned of the CredentialId.
+    /// </summary>
+    public required IsUserHandleOwnerOfCredentialIdAsync IsUserHandleOwnerOfCredentialIdCallback { get; init; }
+
+    /// <summary>
+    /// The stored device public keys.
+    /// </summary>
+    public IReadOnlyList<byte[]> StoredDevicePublicKeys { get; init; } = Array.Empty<byte[]>();
+
+
+    /// <summary>
+    /// DO NOT USE - Deprecated, but kept in code due to conformance testing tool.
+    /// </summary>
+    public byte[]? RequestTokenBindingId { get; init; }
+}

Src/Fido2/MakeNewCredentialParams.cs

@@ -0,0 +1,27 @@
+namespace Fido2NetLib;
+
+/// <summary>
+/// Wraps the input for the MakeNewCredential function
+/// </summary>
+public sealed class MakeNewCredentialParams
+{
+    /// <summary>
+    ///  The attestation response from the authenticator.
+    /// </summary>
+    public required AuthenticatorAttestationRawResponse AttestationResponse { get; init; }
+
+    /// <summary>
+    ///  The original options that was sent to the client.
+    /// </summary>
+    public required CredentialCreateOptions OriginalOptions { get; init; }
+
+    /// <summary>
+    ///  The delegate used to validate that the CredentialID is unique to this user.
+    /// </summary>
+    public required IsCredentialIdUniqueToUserAsyncDelegate IsCredentialIdUniqueToUserCallback { get; init; }
+
+    /// <summary>
+    ///  DO NOT USE - Deprecated, but kept in code due to conformance testing tool
+    /// </summary>
+    public byte[]? RequestTokenBindingId { get; init; }
+}

Tests/Fido2.Tests/Attestation/Apple.cs

@@ -269,7 +269,12 @@ public async Task TestApplePublicKeyMismatch()
             Origins = new HashSet<string> { "https://www.passwordless.dev" },
         });
 
-        var credentialMakeResult = await lib.MakeNewCredentialAsync(attestationResponse, originalOptions, callback);
+        var credentialMakeResult = await lib.MakeNewCredentialAsync(new MakeNewCredentialParams
+        {
+            AttestationResponse = attestationResponse,
+            OriginalOptions = originalOptions,
+            IsCredentialIdUniqueToUserCallback = callback
+        });
     }
 
     private string[] StackAllocSha256(ReadOnlySpan<byte> authData, ReadOnlySpan<byte> clientDataJson)