Fix warnings

Author: jdmoreira

FullStackTests/Tests/PIVFullStackTests.swift

@@ -148,7 +148,7 @@ struct PIVFullStackTests {
             )
 
             // Convert YubiKit public key to CryptoKit for verification
-            let cryptoKitPublicKey = try Signing.PublicKey(rawRepresentation: ed25519PublicKey.keyData)
+            let cryptoKitPublicKey = try Curve25519.Signing.PublicKey(rawRepresentation: ed25519PublicKey.keyData)
             #expect(cryptoKitPublicKey.isValidSignature(signature, for: testMessage))
         }
     }
@@ -211,7 +211,7 @@ struct PIVFullStackTests {
             }
 
             // Generate X25519 key using CryptoKit
-            let cryptoKitPrivateKey = KeyAgreement.PrivateKey()
+            let cryptoKitPrivateKey = Curve25519.KeyAgreement.PrivateKey()
             let cryptoKitPublicKey = cryptoKitPrivateKey.publicKey
 
             // Convert to YubiKit format
@@ -226,7 +226,7 @@ struct PIVFullStackTests {
 
             // Calculate shared secret using CryptoKit
             let softwareSecret = try cryptoKitPrivateKey.sharedSecretFromKeyAgreement(
-                with: KeyAgreement.PublicKey(rawRepresentation: yubiKeyPublicKey.keyData)
+                with: Curve25519.KeyAgreement.PublicKey(rawRepresentation: yubiKeyPublicKey.keyData)
             )
             let softwareSecretData = softwareSecret.withUnsafeBytes { Data($0) }
 
@@ -313,7 +313,7 @@ struct PIVFullStackTests {
             try requireFeatureSupport(PIVSessionFeature.ed25519, in: session)
 
             // Generate Ed25519 key using CryptoKit
-            let cryptoKitPrivateKey = Signing.PrivateKey()
+            let cryptoKitPrivateKey = Curve25519.Signing.PrivateKey()
             let cryptoKitPublicKey = cryptoKitPrivateKey.publicKey
 
             // Convert to YubiKit format
@@ -355,7 +355,7 @@ struct PIVFullStackTests {
             try requireFeatureSupport(PIVSessionFeature.x25519, in: session)
 
             // Generate X25519 key using CryptoKit
-            let cryptoKitPrivateKey = KeyAgreement.PrivateKey()
+            let cryptoKitPrivateKey = Curve25519.KeyAgreement.PrivateKey()
             let cryptoKitPublicKey = cryptoKitPrivateKey.publicKey
 
             // Convert to YubiKit format
@@ -379,7 +379,7 @@ struct PIVFullStackTests {
             #expect(keyType == PIV.X25519Key.x25519)
 
             // Test key agreement with the imported key
-            let otherCryptoKitPrivateKey = KeyAgreement.PrivateKey()
+            let otherCryptoKitPrivateKey = Curve25519.KeyAgreement.PrivateKey()
             let otherCryptoKitPublicKey = otherCryptoKitPrivateKey.publicKey
             let otherPublicKeyData = otherCryptoKitPublicKey.rawRepresentation
 
@@ -535,7 +535,6 @@ struct PIVFullStackTests {
                 #expect(attestKey == publicKey)
             } else {
                 // Just verify that the certificate was generated successfully
-                #expect(cert.der != nil)
                 #expect(cert.der.count > 0)
             }
         }

YubiKit/YubiKit/Management/DeviceConfig.swift

@@ -16,7 +16,7 @@ import CryptoTokenKit
 import Foundation
 
 /// Describes the configuration of a YubiKey which can be altered via the Management application.
-public struct DeviceConfig {
+public struct DeviceConfig: Sendable {
 
     /// The timeout used when in CCID-only mode with flag eject enabled.
     public let autoEjectTimeout: TimeInterval?

YubiKit/YubiKit/Management/DeviceInfo.swift

@@ -16,12 +16,12 @@ import CryptoTokenKit
 import Foundation
 
 /// Identifies the type of data transport a YubiKey is using.
-public enum DeviceTransport {
+public enum DeviceTransport: Sendable {
     case usb, nfc
 }
 
 /// The physical form factor of a YubiKey.
-public enum FormFactor: UInt8 {
+public enum FormFactor: UInt8, Sendable {
     /// Used when information about the YubiKey's form factor isn't available.
     case unknown = 0x00
     /// A keychain-sized YubiKey with a USB-A connector.
@@ -41,7 +41,7 @@ public enum FormFactor: UInt8 {
 }
 
 /// Contains metadata, including Device Configuration, of a YubiKey.
-public struct DeviceInfo: CustomStringConvertible {
+public struct DeviceInfo: Sendable, CustomStringConvertible {
 
     public var description: String {
         """

YubiKit/YubiKit/PIV/PIVDataTypes.swift

@@ -210,7 +210,7 @@ public enum PIV {
     }
 
     /// Metadata about a Bio multi-protocol YubiKey.
-    public struct BioMetadata {
+    public struct BioMetadata: Sendable {
         /// Indicates whether biometrics are configured or not (fingerprints enrolled or not).
         ///
         /// A false return value indicates a YubiKey Bio without biometrics configured and hence the