.

Sources/Packages/Package.swift

@@ -18,6 +18,9 @@ let package = Package(
         .library(
             name: "SmartCardSecretKit",
             targets: ["SmartCardSecretKit"]),
+        .library(
+            name: "ProxyAgentSecretKit",
+            targets: ["ProxyAgentSecretKit"]),
         .library(
             name: "SecretAgentKit",
             targets: ["SecretAgentKit"]),
@@ -47,6 +50,10 @@ let package = Package(
             name: "SmartCardSecretKit",
             dependencies: ["SecretKit"]
         ),
+        .target(
+            name: "ProxyAgentSecretKit",
+            dependencies: ["SecretKit", "SecretAgentKit"]
+        ),
         .target(
             name: "SecretAgentKit",
             dependencies: ["SecretKit", "SecretAgentKitHeaders"]

Sources/Packages/Sources/ProxyAgentSecretKit/ProxyAgent.swift

@@ -0,0 +1,2 @@
+/// Namespace for the Proxy Agent implementations.
+public enum ProxyAgent {}

Sources/Packages/Sources/ProxyAgentSecretKit/ProxyAgentSecret.swift

@@ -0,0 +1,19 @@
+import Foundation
+import Combine
+import SecretKit
+
+extension ProxyAgent {
+
+    /// An implementation of Secret backed by a Smart Card.
+    public struct Secret: SecretKit.Secret {
+
+        public let id: Data
+        public let name: String
+        public let algorithm: Algorithm
+        public let keySize: Int
+        public let requiresAuthentication: Bool = false
+        public let publicKey: Data
+
+    }
+
+}

Sources/Packages/Sources/ProxyAgentSecretKit/ProxyAgentStore.swift

@@ -0,0 +1,59 @@
+import Foundation
+import Security
+import CryptoTokenKit
+import LocalAuthentication
+import SecretKit
+
+extension ProxyAgent {
+
+    /// An implementation of Store backed by a Proxy Agent.
+    public class Store: SecretStore {
+
+        @Published public var isAvailable: Bool = true
+        public let id = UUID()
+        public private(set) var name = NSLocalizedString("Proxy SSH Agent", comment: "Proxy SSH Agent")
+        @Published public private(set) var secrets: [Secret] = []
+        private let agentPath: String
+
+        /// Initializes a Store.
+        public init(path: String) {
+            agentPath = path
+            secrets.append(Secret(id: "hello".data(using: .utf8)!, name: "Test", algorithm: .ellipticCurve, keySize: 256, publicKey: Data(base64Encoded: "AAAAC3NzaC1lZDI1NTE5AAAAIINQz8WohBS46ICEUtkJ/vdxJPM63T5Dy4bQC35JVgGR")!))
+        }
+
+        // MARK: Public API
+
+        public func create(name: String) throws {
+            fatalError("Keys must be created on the smart card.")
+        }
+
+        public func delete(secret: Secret) throws {
+            fatalError("Keys must be deleted on the smart card.")
+        }
+
+        public func sign(data: Data, with secret: SecretType, for provenance: SigningRequestProvenance) throws -> Data {
+            fatalError()
+        }
+
+        public func existingPersistedAuthenticationContext(secret: ProxyAgent.Secret) -> PersistedAuthenticationContext? {
+            nil
+        }
+
+        public func persistAuthentication(secret: ProxyAgent.Secret, forDuration: TimeInterval) throws {
+        }
+
+    }
+
+}
+
+extension ProxyAgent.Store {
+
+}
+
+extension ProxyAgent {
+
+    /// A signing-related error.
+    public struct SigningError: Error {
+    }
+
+}

Sources/Packages/Sources/SecretKit/OpenSSH/OpenSSHKeyWriter.swift

@@ -64,6 +64,10 @@ extension OpenSSHKeyWriter {
         switch algorithm {
         case .ellipticCurve:
             return "ecdsa-sha2-nistp" + String(describing: length)
+        case .rsa:
+            return "ssh-rsa"
+        case .ed25519:
+            return "ssh-ed25519"
         }
     }
 
@@ -76,6 +80,11 @@ extension OpenSSHKeyWriter {
         switch algorithm {
         case .ellipticCurve:
             return "nistp" + String(describing: length)
+        // TODO: VERIFY
+        case .rsa:
+            return "rsa"
+        case .ed25519:
+            return "ed25519"
         }
     }
 

Sources/Packages/Sources/SecretKit/Types/Secret.swift

@@ -19,6 +19,8 @@ public protocol Secret: Identifiable, Hashable {
 /// The type of algorithm the Secret uses. Currently, only elliptic curve algorithms are supported.
 public enum Algorithm: Hashable {
 
+    case rsa
+    case ed25519
     case ellipticCurve
 
     /// Initializes the Algorithm with a secAttr representation of an algorithm.

Sources/Secretive.xcodeproj/project.pbxproj

@@ -47,10 +47,11 @@
 		50A3B79124026B7600D209EA /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 50A3B79024026B7600D209EA /* Assets.xcassets */; };
 		50A3B79424026B7600D209EA /* Preview Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 50A3B79324026B7600D209EA /* Preview Assets.xcassets */; };
 		50A3B79724026B7600D209EA /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 50A3B79524026B7600D209EA /* Main.storyboard */; };
+		50A63F6B27E7DC5700085D7B /* ProxyAgentSecretKit in Frameworks */ = {isa = PBXBuildFile; productRef = 50A63F6A27E7DC5700085D7B /* ProxyAgentSecretKit */; };
+		50A63F6D27E7E04800085D7B /* ProxyAgentSecretKit in Frameworks */ = {isa = PBXBuildFile; productRef = 50A63F6C27E7E04800085D7B /* ProxyAgentSecretKit */; };
 		50B8550D24138C4F009958AC /* DeleteSecretView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 50B8550C24138C4F009958AC /* DeleteSecretView.swift */; };
 		50BB046B2418AAAE00D6E079 /* EmptyStoreView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 50BB046A2418AAAE00D6E079 /* EmptyStoreView.swift */; };
 		50C385A52407A76D00AF2719 /* SecretDetailView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 50C385A42407A76D00AF2719 /* SecretDetailView.swift */; };
-		50C511B0285064DB00704B27 /* MainActorWrappers.swift in Sources */ = {isa = PBXBuildFile; fileRef = 50C511AF285064DB00704B27 /* MainActorWrappers.swift */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXContainerItemProxy section */
@@ -148,7 +149,6 @@
 		50B8550C24138C4F009958AC /* DeleteSecretView.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = DeleteSecretView.swift; sourceTree = "<group>"; };
 		50BB046A2418AAAE00D6E079 /* EmptyStoreView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = EmptyStoreView.swift; sourceTree = "<group>"; };
 		50C385A42407A76D00AF2719 /* SecretDetailView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SecretDetailView.swift; sourceTree = "<group>"; };
-		50C511AF285064DB00704B27 /* MainActorWrappers.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MainActorWrappers.swift; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -156,6 +156,7 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				50A63F6D27E7E04800085D7B /* ProxyAgentSecretKit in Frameworks */,
 				5003EF3B278005E800DF2006 /* SecretKit in Frameworks */,
 				501421622781262300BBAA70 /* Brief in Frameworks */,
 				5003EF5F2780081600DF2006 /* SecureEnclaveSecretKit in Frameworks */,
@@ -176,6 +177,7 @@
 			files = (
 				5003EF3D278005F300DF2006 /* Brief in Frameworks */,
 				5003EF632780081B00DF2006 /* SecureEnclaveSecretKit in Frameworks */,
+				50A63F6B27E7DC5700085D7B /* ProxyAgentSecretKit in Frameworks */,
 				5003EF652780081B00DF2006 /* SmartCardSecretKit in Frameworks */,
 				5003EF3F278005F300DF2006 /* SecretAgentKit in Frameworks */,
 				5003EF41278005FA00DF2006 /* SecretKit in Frameworks */,
@@ -189,7 +191,6 @@
 			isa = PBXGroup;
 			children = (
 				50033AC227813F1700253856 /* BundleIDs.swift */,
-				50C511AF285064DB00704B27 /* MainActorWrappers.swift */,
 			);
 			path = Helpers;
 			sourceTree = "<group>";
@@ -348,6 +349,7 @@
 				5003EF5E2780081600DF2006 /* SecureEnclaveSecretKit */,
 				5003EF602780081600DF2006 /* SmartCardSecretKit */,
 				501421612781262300BBAA70 /* Brief */,
+				50A63F6C27E7E04800085D7B /* ProxyAgentSecretKit */,
 			);
 			productName = Secretive;
 			productReference = 50617D7F23FCE48E0099B055 /* Secretive.app */;
@@ -391,6 +393,7 @@
 				5003EF40278005FA00DF2006 /* SecretKit */,
 				5003EF622780081B00DF2006 /* SecureEnclaveSecretKit */,
 				5003EF642780081B00DF2006 /* SmartCardSecretKit */,
+				50A63F6A27E7DC5700085D7B /* ProxyAgentSecretKit */,
 			);
 			productName = SecretAgent;
 			productReference = 50A3B78A24026B7500D209EA /* SecretAgent.app */;
@@ -482,7 +485,6 @@
 				50571E0324393C2600F76F6C /* JustUpdatedChecker.swift in Sources */,
 				5079BA0F250F29BF00EA86F4 /* StoreListView.swift in Sources */,
 				50617DD223FCEFA90099B055 /* PreviewStore.swift in Sources */,
-				50C511B0285064DB00704B27 /* MainActorWrappers.swift in Sources */,
 				5066A6F7251829B1004B5A36 /* ShellConfigurationController.swift in Sources */,
 				50033AC327813F1700253856 /* BundleIDs.swift in Sources */,
 				508A58B3241ED2180069DC07 /* AgentStatusChecker.swift in Sources */,
@@ -1025,6 +1027,14 @@
 			isa = XCSwiftPackageProductDependency;
 			productName = Brief;
 		};
+		50A63F6A27E7DC5700085D7B /* ProxyAgentSecretKit */ = {
+			isa = XCSwiftPackageProductDependency;
+			productName = ProxyAgentSecretKit;
+		};
+		50A63F6C27E7E04800085D7B /* ProxyAgentSecretKit */ = {
+			isa = XCSwiftPackageProductDependency;
+			productName = ProxyAgentSecretKit;
+		};
 /* End XCSwiftPackageProductDependency section */
 	};
 	rootObject = 50617D7723FCE48D0099B055 /* Project object */;

Sources/Secretive/Helpers/MainActorWrappers.swift

@@ -1,17 +0,0 @@
-import Foundation
-
-func mainActorWrapped(_ f: @escaping @MainActor () -> Void) -> () -> Void {
-    return {
-        DispatchQueue.main.async {
-            f()
-        }
-    }
-}
-
-func mainActorWrapped<T: Sendable>(_ f: @escaping @MainActor (T) -> Void) -> (T) -> Void {
-    return { x in
-        DispatchQueue.main.async {
-            f(x)
-        }
-    }
-}

Sources/Secretive/Views/CreateSecretView.swift

@@ -43,7 +43,7 @@ struct CreateSecretView<StoreType: SecretStoreModifiable>: View {
                     showing = false
                 }
                 .keyboardShortcut(.cancelAction)
-                Button("Create", action: mainActorWrapped(save))
+                Button("Create", action: save)
                     .disabled(name.isEmpty)
                     .keyboardShortcut(.defaultAction)
             }

Sources/Secretive/Views/DeleteSecretView.swift

@@ -33,7 +33,7 @@ struct DeleteSecretView<StoreType: SecretStoreModifiable>: View {
             }
             HStack {
                 Spacer()
-                Button("Delete", action: mainActorWrapped(delete))
+                Button("Delete", action: delete)
                     .disabled(confirm != secret.name)
                     .keyboardShortcut(.delete)
                 Button("Don't Delete") {

Sources/Secretive/Views/RenameSecretView.swift

@@ -28,7 +28,7 @@ struct RenameSecretView<StoreType: SecretStoreModifiable>: View {
             }
             HStack {
                 Spacer()
-                Button("Rename", action: mainActorWrapped(rename))
+                Button("Rename", action: rename)
                     .disabled(newName.count == 0)
                     .keyboardShortcut(.return)
                 Button("Cancel") {

Sources/Secretive/Views/StoreListView.swift

@@ -31,8 +31,8 @@ struct StoreListView: View {
                                         store: store,
                                         secret: secret,
                                         activeSecret: $activeSecret,
-                                        deletedSecret: mainActorWrapped(self.secretDeleted),
+                                        deletedSecret: self.secretDeleted,
-                                        renamedSecret: mainActorWrapped(self.secretRenamed)
+                                        renamedSecret: self.secretRenamed
                                     )
                                 }
                             }