Sketching out.

Sources/Secretive/Controllers/XPCCertificateParser.swift

@@ -0,0 +1,29 @@
+import Foundation
+import OSLog
+import SSHProtocolKit
+import Brief
+import XPCWrappers
+
+/// Delegates all agent input parsing to an XPC service which wraps OpenSSH
+public final class XPCCertificateParser: OpenSSHCertificateParserProtocol {
+
+    private let logger = Logger(subsystem: "com.maxgoedjen.secretive", category: "XPCCertificateParser")
+    private let session: XPCTypedSession<OpenSSHCertificate, OpenSSHCertificateError>
+
+    public init() async throws {
+        logger.debug("Creating XPCCertificateParser")
+        session = try await XPCTypedSession(serviceName: "com.maxgoedjen.Secretive.SecretiveCertificateParser", warmup: true)
+        logger.debug("XPCCertificateParser is warmed up.")
+    }
+
+    public func parse(data: Data) async throws -> OpenSSHCertificate {
+        logger.debug("Parsing input")
+        defer { logger.debug("Parsed input") }
+        return try await session.send(data)
+    }
+
+    deinit {
+        session.complete()
+    }
+
+}

Sources/Secretive/Views/Configuration/ToolConfigurationView.swift

@@ -1,5 +1,6 @@
 import SwiftUI
 import SecretKit
+import SSHProtocolKit
 
 struct ToolConfigurationView: View {
 

Sources/Secretive/Views/Secrets/SecretDetailView.swift

@@ -1,5 +1,6 @@
 import SwiftUI
 import SecretKit
+import SSHProtocolKit
 
 struct SecretDetailView<SecretType: Secret>: View {
     

Sources/Secretive/Views/Views/ContentView.swift

@@ -3,6 +3,7 @@ import SecretKit
 import SecureEnclaveSecretKit
 import SmartCardSecretKit
 import Brief
+import SSHProtocolKit
 
 struct ContentView: View {
 
@@ -42,6 +43,16 @@ struct ContentView: View {
                 runningSetup = true
             }
         }
+        .dropDestination(for: URL.self) { items, location in
+                guard let url = items.first, url.pathExtension == "pub" else { return false }
+            Task {
+                let data = try! Data(contentsOf: url)
+                let parser = try! await XPCCertificateParser()
+                let cert = try! await parser.parse(data: data)
+                print(cert)
+            }
+            return true
+        } isTargeted: { _ in }
         .focusedSceneValue(\.showCreateSecret,  .init(isEnabled: !runningSetup) {
             showingCreation = true
         })