Merge branch 'master' of github.com:maxgoedjen/secretive

* Adding credits txt

* Switch up build number

.github/FUNDING.yml

@@ -0,0 +1 @@
+github: maxgoedjen

.github/workflows/release.yml

@@ -5,6 +5,20 @@ on:
     tags:
       - '*'
 jobs:
+  test:
+    runs-on: macOS-latest
+    timeout-minutes: 10
+    steps:
+    - uses: actions/checkout@v1
+    - name: Setup Signing
+      env: 
+        SIGNING_DATA: ${{ secrets.SIGNING_DATA }}
+        SIGNING_PASSWORD: ${{ secrets.SIGNING_PASSWORD }}
+        HOST_PROFILE_DATA: ${{ secrets.HOST_PROFILE_DATA }}
+        AGENT_PROFILE_DATA: ${{ secrets.AGENT_PROFILE_DATA }}
+      run: ./.github/scripts/signing.sh
+    - name: Test
+      run: xcrun xcodebuild test -project Secretive.xcodeproj -scheme Secretive
   build:
     runs-on: macOS-latest
     timeout-minutes: 10
@@ -31,9 +45,12 @@ jobs:
     - name: Update Build Number
       env:
         TAG_NAME: ${{ github.ref }}
+        RUN_ID: ${{ github.run_id }}
       run: |
             export CLEAN_TAG=$(echo $TAG_NAME | sed -e 's/refs\/tags\/v//')
-            sed -i '' -e "s/CI_VERSION = 0.0.0/CI_VERSION = $CLEAN_TAG/g" Config/Config.xcconfig
+            sed -i '' -e "s/GITHUB_CI_VERSION/$CLEAN_TAG/g" Config/Config.xcconfig
+            sed -i '' -e "s/GITHUB_BUILD_NUMBER/1.$RUN_ID/g" Config/Config.xcconfig
+            sed -i '' -e "s/GITHUB_BUILD_URL/https:\/\/github.com\/maxgoedjen\/secretive\/actions\/runs\/$RUN_ID/g" Secretive/Credits.rtf
     - name: Build
       run: xcrun xcodebuild -project Secretive.xcodeproj -scheme Secretive -configuration Release -archivePath Archive.xcarchive archive
     - name: Create ZIPs

.github/workflows/test.yml

@@ -0,0 +1,18 @@
+name: Test
+
+on: push
+jobs:
+  test:
+    runs-on: macOS-latest
+    timeout-minutes: 10
+    steps:
+    - uses: actions/checkout@v1
+    - name: Setup Signing
+      env: 
+        SIGNING_DATA: ${{ secrets.SIGNING_DATA }}
+        SIGNING_PASSWORD: ${{ secrets.SIGNING_PASSWORD }}
+        HOST_PROFILE_DATA: ${{ secrets.HOST_PROFILE_DATA }}
+        AGENT_PROFILE_DATA: ${{ secrets.AGENT_PROFILE_DATA }}
+      run: ./.github/scripts/signing.sh
+    - name: Test
+      run: xcrun xcodebuild test -project Secretive.xcodeproj -scheme Secretive

Brief/Brief.h

@@ -0,0 +1,19 @@
+//
+//  Brief.h
+//  Brief
+//
+//  Created by Max Goedjen on 3/21/20.
+//  Copyright © 2020 Max Goedjen. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+
+//! Project version number for Brief.
+FOUNDATION_EXPORT double BriefVersionNumber;
+
+//! Project version string for Brief.
+FOUNDATION_EXPORT const unsigned char BriefVersionString[];
+
+// In this header, you should import all the public headers of your framework using statements like #import <Brief/PublicHeader.h>
+
+

Brief/Info.plist

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>$(PRODUCT_BUNDLE_PACKAGE_TYPE)</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>$(CURRENT_PROJECT_VERSION)</string>
+	<key>NSHumanReadableCopyright</key>
+	<string>$(PRODUCT_NAME) is MIT Licensed.</string>
+</dict>
+</plist>

Brief/Updater.swift

@@ -1,17 +1,17 @@
 import Foundation
 import Combine
 
-protocol UpdaterProtocol: ObservableObject {
+public protocol UpdaterProtocol: ObservableObject {
 
     var update: Release? { get }
 
 }
 
-class Updater: ObservableObject, UpdaterProtocol {
+public class Updater: ObservableObject, UpdaterProtocol {
 
-    @Published var update: Release?
+    @Published public var update: Release?
 
-    init() {
+    public init() {
         checkForUpdates()
         let timer = Timer.scheduledTimer(withTimeInterval: 60*60*24, repeats: true) { _ in
             self.checkForUpdates()
@@ -19,7 +19,7 @@ class Updater: ObservableObject, UpdaterProtocol {
         timer.tolerance = 60*60
     }
 
-    func checkForUpdates() {
+    public func checkForUpdates() {
         URLSession.shared.dataTask(with: Constants.updateURL) { data, _, _ in
             guard let data = data else { return }
             guard let release = try? JSONDecoder().decode(Release.self, from: data) else { return }
@@ -27,7 +27,20 @@ class Updater: ObservableObject, UpdaterProtocol {
         }.resume()
     }
 
+    public func ignore(release: Release) {
+        guard !release.critical else { return }
+        defaults.set(true, forKey: release.name)
+        DispatchQueue.main.async {
+            self.update = nil
+        }
+    }
+
+}
+
+extension Updater {
+
     func evaluate(release: Release) {
+        guard !userIgnored(release: release) else { return }
         let latestVersion = semVer(from: release.name)
         let currentVersion = semVer(from: Bundle.main.infoDictionary!["CFBundleShortVersionString"] as! String)
         for (latest, current) in zip(latestVersion, currentVersion) {
@@ -48,6 +61,14 @@ class Updater: ObservableObject, UpdaterProtocol {
         return split
     }
 
+    func userIgnored(release: Release) -> Bool {
+        guard !release.critical else { return false }
+        return defaults.bool(forKey: release.name)
+    }
+
+    var defaults: UserDefaults {
+        UserDefaults(suiteName: "com.maxgoedjen.Secretive.updater.ignorelist")!
+    }
 }
 
 extension Updater {
@@ -58,16 +79,24 @@ extension Updater {
 
 }
 
-struct Release: Codable {
+public struct Release: Codable {
-    let name: String
+
-    let html_url: URL
+    public let name: String
-    let body: String
+    public let html_url: URL
+    public let body: String
+
+    public init(name: String, html_url: URL, body: String) {
+        self.name = name
+        self.html_url = html_url
+        self.body = body
+    }
+
 }
 
 
 extension Release {
 
-    var critical: Bool {
+    public var critical: Bool {
         return body.contains(Constants.securityContent)
     }
 

Config/Config.xcconfig

@@ -1 +1,2 @@
-CI_VERSION = 0.0.0
+CI_VERSION = GITHUB_CI_VERSION
+CI_BUILD_NUMBER = GITHUB_BUILD_NUMBER

Config/Secretive.xctestplan

@@ -0,0 +1,41 @@
+{
+  "configurations" : [
+    {
+      "id" : "5896AE5A-6D5A-48D3-837B-668B646A3273",
+      "name" : "Configuration 1",
+      "options" : {
+
+      }
+    }
+  ],
+  "defaultOptions" : {
+
+  },
+  "testTargets" : [
+    {
+      "parallelizable" : true,
+      "target" : {
+        "containerPath" : "container:Secretive.xcodeproj",
+        "identifier" : "50617DAF23FCE4AB0099B055",
+        "name" : "SecretKitTests"
+      }
+    },
+    {
+      "parallelizable" : true,
+      "target" : {
+        "containerPath" : "container:Secretive.xcodeproj",
+        "identifier" : "5099A073240242BA0062B6F2",
+        "name" : "SecretAgentKitTests"
+      }
+    },
+    {
+      "parallelizable" : true,
+      "target" : {
+        "containerPath" : "container:Secretive.xcodeproj",
+        "identifier" : "50617D9323FCE48E0099B055",
+        "name" : "SecretiveTests"
+      }
+    }
+  ],
+  "version" : 1
+}

FAQ.md

@@ -0,0 +1,37 @@
+# FAQ
+
+### How do I import my current SSH keys, or export my Secretive Keys?
+
+The secure enclave doesn't allow import or export of private keys. For any new computer, you should just create a new set of keys. If you're using a smart card, you _might_ be able to export your private key from the vendor's software.
+
+### Secretive doesn't work with my git client
+
+Secretive relies on the `SSH_AUTH_SOCK` environment variable being respected. The `git` and `ssh` command line tools natively respect this, but third party apps may require some configuration to work. A non-exhaustive list of clients is provided here:
+
+Tower - [Instructions](https://www.git-tower.com/help/mac/integration/environment)
+
+GitHub Desktop: Should just work, no configuration needed
+
+### Secretive isn't working for me
+
+Please run `ssh -Tv git@github.com` in your terminal and paste the output in a [new GitHub issue](https://github.com/maxgoedjen/secretive/issues/new) with a description of your issue.
+
+### Why should I trust you?
+
+You shouldn't, for a piece of software like this. Secretive, by design, has an auditable build process. Each build has a fully auditable build log, showing the source it was built from and a SHA of the build product. You can check the SHA of the zip you download against the SHA output in the build log (which is linked in the About window).
+
+### I want to build Secretive from source
+
+Awesome! Just bear in mind that because an app only has access to the keychain items that it created, if you have secrets that you created with the prebuilt version of Secretive, you'll be unable to access them using your own custom build (since you'll have changed the bundled ID).
+
+### I have a security issue
+
+Please contact [max.goedjen@gmail.com](mailto:max.goedjen@gmail.com) with a subject containing "SECRETIVE SECURITY" immediately with details, and I'll address the issue and credit you ASAP.
+
+### I have a non-security related bug
+
+Please file a [GitHub issue](https://github.com/maxgoedjen/secretive/issues/new) for it. I will not provide email support with the exception of the critical security issues mentioned above.
+
+### I want to contribute to Secretive
+
+Sweet! Please check out the [contributing guidelines](CONTRIBUTING.md) and go from there.

README.md

@@ -1,9 +1,11 @@
-# Secretive
+# Secretive ![Test](https://github.com/maxgoedjen/secretive/workflows/Test/badge.svg) ![Release](https://github.com/maxgoedjen/secretive/workflows/Release/badge.svg)
+
 
 Secretive is an app for storing and managing SSH keys in the Secure Enclave. It is inspired by the [sekey project](https://github.com/sekey/sekey), but rewritten in Swift with no external dependencies and with a handy native management app.
 
 <img src="/.github/readme/app.png" alt="Screenshot of Secretive" width="600">
 
+
 ## Why?
 
 ### Safer Storage
@@ -12,7 +14,7 @@ The most common setup for SSH keys is just keeping them on disk, guarded by prop
 
 ### Access Control
 
-If your Mac has a Secure Enclave, it also has support for strong biometric access controls like Touch ID. You can configure your key so that they require Touch ID (or Watch) authentication before they're accessed.
+If your Mac has a Secure Enclave, it also has support for strong access controls like Touch ID, or authentication with Apple Watch. You can configure your key so that they require Touch ID (or Watch) authentication before they're accessed.
 
 <img src="/.github/readme/touchid.png" alt="Screenshot of Secretive authenticating with Touch ID">
 
@@ -28,15 +30,11 @@ For Macs without Secure Enclaves, you can configure a Smart Card (such as a Yubi
 
 ## Getting Started
 
-### Setup for Third Party Apps
+### FAQ
 
-When you first launch Secretive, you'll be prompted to set up your command line environment. You can redisplay this prompt at any time by going to `Menu > Help -> Set Up Helper App`.
+There's a [FAQ here](FAQ.md).
-For non-command-line based apps, like GUI Git clients, you may need to go through app-specific setup.
 
-[Tower](https://www.git-tower.com/help/mac/integration/environment)
+### Auditable Build Process
-
-
-### Security Considerations
 
 Builds are produced by GitHub Actions with an auditable build and release generation process. Each build has a "Document SHAs" step, which will output SHA checksums for the build produced by the GitHub Action, so you can verify that the source code for a given build corresponds to any given release.
 
@@ -50,4 +48,4 @@ Beacuse secrets in the Secure Enclave are not exportable, they are not able to b
 
 ## Security
 
-If you discover any vulnerabilities in this project, please notify max.goedjen@gmail.com
+If you discover any vulnerabilities in this project, please notify [max.goedjen@gmail.com](mailto:max.goedjen@gmail.com) with the subject containing "SECRETIVE SECURITY."

SecretAgent/AppDelegate.swift

@@ -1,6 +1,9 @@
 import Cocoa
-import SecretKit
 import OSLog
+import Combine
+import SecretKit
+import SecretAgentKit
+import Brief
 
 @NSApplicationMain
 class AppDelegate: NSObject, NSApplicationDelegate {
@@ -11,25 +14,27 @@ class AppDelegate: NSObject, NSApplicationDelegate {
         list.add(store: SmartCard.Store())
         return list
     }()
+    let updater = Updater()
     let notifier = Notifier()
     lazy var agent: Agent = {
-        Agent(storeList: storeList, notifier: notifier)
+        Agent(storeList: storeList, witness: notifier)
     }()
     lazy var socketController: SocketController = {
         let path = (NSHomeDirectory() as NSString).appendingPathComponent("socket.ssh") as String
         return SocketController(path: path)
     }()
+    fileprivate var updateSink: AnyCancellable?
 
     func applicationDidFinishLaunching(_ aNotification: Notification) {
         os_log(.debug, "SecretAgent finished launching")
         DispatchQueue.main.async {
-            self.socketController.handler = self.agent.handle(fileHandle:)
+            self.socketController.handler = self.agent.handle(reader:writer:)
         }
         notifier.prompt()
-    }
+        updateSink = updater.$update.sink { update in
-
+            guard let update = update else { return }
-    func applicationWillTerminate(_ aNotification: Notification) {
+            self.notifier.notify(update: update, ignore: self.updater.ignore(release:))
-        // Insert code here to tear down your application
+        }
     }
 
 

SecretAgent/Info.plist

@@ -25,7 +25,7 @@
 	<key>LSUIElement</key>
 	<true/>
 	<key>NSHumanReadableCopyright</key>
-	<string>Copyright © 2020 Max Goedjen. All rights reserved.</string>
+	<string>$(PRODUCT_NAME) is MIT Licensed.</string>
 	<key>NSMainStoryboardFile</key>
 	<string>Main</string>
 	<key>NSPrincipalClass</key>

SecretAgent/Notifier.swift

@@ -1,22 +1,123 @@
 import Foundation
-import SecretKit
 import UserNotifications
+import AppKit
+import SecretKit
+import SecretAgentKit
+import Brief
 
 class Notifier {
 
+    fileprivate let notificationDelegate = NotificationDelegate()
+
+    init() {
+        let updateAction = UNNotificationAction(identifier: Constants.updateActionIdentitifier, title: "Update", options: [])
+        let ignoreAction = UNNotificationAction(identifier: Constants.ignoreActionIdentitifier, title: "Ignore", options: [])
+        let updateCategory = UNNotificationCategory(identifier: Constants.updateCategoryIdentitifier, actions: [updateAction, ignoreAction], intentIdentifiers: [], options: [])
+        let criticalUpdateCategory = UNNotificationCategory(identifier: Constants.updateCategoryIdentitifier, actions: [updateAction], intentIdentifiers: [], options: [])
+        UNUserNotificationCenter.current().setNotificationCategories([updateCategory, criticalUpdateCategory])
+        UNUserNotificationCenter.current().delegate = notificationDelegate
+    }
+
     func prompt() {
         let notificationCenter = UNUserNotificationCenter.current()
         notificationCenter.requestAuthorization(options: .alert) { _, _ in
         }
     }
 
-    func notify<SecretType: Secret>(accessTo secret: SecretType) {
+    func notify(accessTo secret: AnySecret, by provenance: SigningRequestProvenance) {
         let notificationCenter = UNUserNotificationCenter.current()
         let notificationContent = UNMutableNotificationContent()
-        notificationContent.title = "Signed Request"
+        notificationContent.title = "Signed Request from \(provenance.origin.name)"
-        notificationContent.body = "\(secret.name) was used to sign a request."
+        notificationContent.subtitle = "Using secret \"\(secret.name)\""
+        if let iconURL = iconURL(for: provenance), let attachment = try? UNNotificationAttachment(identifier: "icon", url: iconURL, options: nil) {
+            notificationContent.attachments = [attachment]
+        }
+        let request = UNNotificationRequest(identifier: UUID().uuidString, content: notificationContent, trigger: nil)
+        notificationCenter.add(request, withCompletionHandler: nil)
+    }
+
+    func notify(update: Release, ignore: ((Release) -> Void)?) {
+        notificationDelegate.release = update
+        notificationDelegate.ignore = ignore
+        let notificationCenter = UNUserNotificationCenter.current()
+        let notificationContent = UNMutableNotificationContent()
+        if update.critical {
+            notificationContent.title = "Critical Security Update - \(update.name)"
+        } else {
+            notificationContent.title = "Update Available - \(update.name)"
+        }
+        notificationContent.subtitle = "Click to Update"
+        notificationContent.body = update.body
+        notificationContent.categoryIdentifier = update.critical ? Constants.criticalUpdateCategoryIdentitifier : Constants.updateCategoryIdentitifier
         let request = UNNotificationRequest(identifier: UUID().uuidString, content: notificationContent, trigger: nil)
         notificationCenter.add(request, withCompletionHandler: nil)
     }
 
 }
+
+extension Notifier {
+
+    func iconURL(for provenance: SigningRequestProvenance) -> URL? {
+        do {
+            if let app = NSRunningApplication(processIdentifier: provenance.origin.pid), let icon = app.icon?.tiffRepresentation {
+                let temporaryURL = URL(fileURLWithPath: (NSTemporaryDirectory() as NSString).appendingPathComponent("\(UUID().uuidString).png"))
+                let bitmap = NSBitmapImageRep(data: icon)
+                try bitmap?.representation(using: .png, properties: [:])?.write(to: temporaryURL)
+                return temporaryURL
+            }
+        } catch {
+        }
+        return nil
+    }
+
+}
+
+extension Notifier: SigningWitness {
+
+    func speakNowOrForeverHoldYourPeace(forAccessTo secret: AnySecret, by provenance: SigningRequestProvenance) throws {
+    }
+
+    func witness(accessTo secret: AnySecret, by provenance: SigningRequestProvenance) throws {
+        notify(accessTo: secret, by: provenance)
+    }
+
+}
+
+extension Notifier {
+
+    enum Constants {
+        static let updateCategoryIdentitifier  = "com.maxgoedjen.Secretive.SecretAgent.update"
+        static let criticalUpdateCategoryIdentitifier  = "com.maxgoedjen.Secretive.SecretAgent.update.critical"
+        static let updateActionIdentitifier  = "com.maxgoedjen.Secretive.SecretAgent.update.updateaction"
+        static let ignoreActionIdentitifier  = "com.maxgoedjen.Secretive.SecretAgent.update.ignoreaction"
+    }
+
+}
+
+class NotificationDelegate: NSObject, UNUserNotificationCenterDelegate {
+
+    fileprivate var release: Release?
+    fileprivate var ignore: ((Release) -> Void)?
+
+    func userNotificationCenter(_ center: UNUserNotificationCenter, openSettingsFor notification: UNNotification?) {
+
+    }
+
+    func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
+        guard let update = release else { return }
+        switch response.actionIdentifier {
+        case Notifier.Constants.updateActionIdentitifier, UNNotificationDefaultActionIdentifier:
+            NSWorkspace.shared.open(update.html_url)
+        case Notifier.Constants.ignoreActionIdentitifier:
+            ignore?(update)
+        default:
+            fatalError()
+        }
+        completionHandler()
+    }
+
+    func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
+        completionHandler(.alert)
+    }
+
+}

SecretAgent/SecretAgent.entitlements

@@ -4,6 +4,8 @@
 <dict>
 	<key>com.apple.security.app-sandbox</key>
 	<true/>
+	<key>com.apple.security.network.client</key>
+	<true/>
 	<key>com.apple.security.smartcard</key>
 	<true/>
 	<key>keychain-access-groups</key>

SecretAgentKit/Agent.swift

@@ -2,45 +2,53 @@ import Foundation
 import CryptoKit
 import OSLog
 import SecretKit
-import SecretAgentKit
+import AppKit
 
-class Agent {
+public class Agent {
 
     fileprivate let storeList: SecretStoreList
-    fileprivate let notifier: Notifier
+    fileprivate let witness: SigningWitness?
+    fileprivate let writer = OpenSSHKeyWriter()
+    fileprivate let requestTracer = SigningRequestTracer()
 
-    public init(storeList: SecretStoreList, notifier: Notifier) {
+    public init(storeList: SecretStoreList, witness: SigningWitness? = nil) {
         os_log(.debug, "Agent is running")
         self.storeList = storeList
-        self.notifier = notifier
+        self.witness = witness
     }
     
 }
 
 extension Agent {
 
-    func handle(fileHandle: FileHandle) {
+    public func handle(reader: FileHandleReader, writer: FileHandleWriter) {
         os_log(.debug, "Agent handling new data")
-        let data = fileHandle.availableData
+        let data = reader.availableData
         guard !data.isEmpty else { return }
         let requestTypeInt = data[4]
-        guard let requestType = SSHAgent.RequestType(rawValue: requestTypeInt) else { return }
+        guard let requestType = SSHAgent.RequestType(rawValue: requestTypeInt) else {
+            writer.write(OpenSSHKeyWriter().lengthAndData(of: SSHAgent.ResponseType.agentFailure.data))
+            os_log(.debug, "Agent returned %@", SSHAgent.ResponseType.agentFailure.debugDescription)
+            return
+        }
         os_log(.debug, "Agent handling request of type %@", requestType.debugDescription)
         let subData = Data(data[5...])
-        handle(requestType: requestType, data: subData, fileHandle: fileHandle)
+        let response = handle(requestType: requestType, data: subData, reader: reader)
+        writer.write(response)
     }
 
-    func handle(requestType: SSHAgent.RequestType, data: Data, fileHandle: FileHandle) {
+    func handle(requestType: SSHAgent.RequestType, data: Data, reader: FileHandleReader) -> Data {
         var response = Data()
         do {
             switch requestType {
             case .requestIdentities:
                 response.append(SSHAgent.ResponseType.agentIdentitiesAnswer.data)
-                response.append(try identities())
+                response.append(identities())
                 os_log(.debug, "Agent returned %@", SSHAgent.ResponseType.agentIdentitiesAnswer.debugDescription)
             case .signRequest:
+                let provenance = requestTracer.provenance(from: reader)
                 response.append(SSHAgent.ResponseType.agentSignResponse.data)
-                response.append(try sign(data: data))
+                response.append(try sign(data: data, provenance: provenance))
                 os_log(.debug, "Agent returned %@", SSHAgent.ResponseType.agentSignResponse.debugDescription)
             }
         } catch {
@@ -49,14 +57,14 @@ extension Agent {
             os_log(.debug, "Agent returned %@", SSHAgent.ResponseType.agentFailure.debugDescription)
         }
         let full = OpenSSHKeyWriter().lengthAndData(of: response)
-        fileHandle.write(full)
+        return full
     }
 
 }
 
 extension Agent {
 
-    func identities() throws -> Data {
+    func identities() -> Data {
         // TODO: RESTORE ONCE XCODE 11.4 IS GM
         let secrets = storeList.stores.flatMap { $0.secrets }
 //        let secrets = storeList.stores.flatMap(\.secrets)
@@ -74,26 +82,21 @@ extension Agent {
         return countData + keyData
     }
 
-    func sign(data: Data) throws -> Data {
+    func sign(data: Data, provenance: SigningRequestProvenance) throws -> Data {
         let reader = OpenSSHReader(data: data)
-        let writer = OpenSSHKeyWriter()
+        let hash = reader.readNextChunk()
-        let hash = try reader.readNextChunk()
+        guard let (store, secret) = secret(matching: hash) else {
-        let matching = storeList.stores.compactMap { store -> (AnySecretStore, AnySecret)? in
+            os_log(.debug, "Agent did not have a key matching %@", hash as NSData)
-            let allMatching = store.secrets.filter { secret in
-                hash == writer.data(secret: secret)
-            }
-            if let matching = allMatching.first {
-                return (store, matching)
-            }
-            return nil
-        }
-        guard let (store, secret) = matching.first else {
             throw AgentError.noMatchingKey
         }
-        let dataToSign = try reader.readNextChunk()
+
+        if let witness = witness {
+            try witness.speakNowOrForeverHoldYourPeace(forAccessTo: secret, by: provenance)
+        }
+
+        let dataToSign = reader.readNextChunk()
         let derSignature = try store.sign(data: dataToSign, with: secret)
-        // TODO: Move this
+
-        notifier.notify(accessTo: secret)
         let curveData = writer.curveType(for: secret.algorithm, length: secret.keySize).data(using: .utf8)!
 
         // Convert from DER formatted rep to raw (r||s)
@@ -105,13 +108,22 @@ extension Agent {
         case (.ellipticCurve, 384):
             rawRepresentation = try CryptoKit.P384.Signing.ECDSASignature(derRepresentation: derSignature).rawRepresentation
         default:
-            fatalError()
+            throw AgentError.unsupportedKeyType
         }
 
 
         let rawLength = rawRepresentation.count/2
-        let r = rawRepresentation[0..<rawLength]
+        // Check if we need to pad with 0x00 to prevent certain
-        let s = rawRepresentation[rawLength...]
+        // ssh servers from thinking r or s is negative
+        let paddingRange: ClosedRange<UInt8> = 0x80...0xFF
+        var r = Data(rawRepresentation[0..<rawLength])
+        if paddingRange ~= r.first! {
+            r.insert(0x00, at: 0)
+        }
+        var s = Data(rawRepresentation[rawLength...])
+        if paddingRange ~= s.first! {
+            s.insert(0x00, at: 0)
+        }
 
         var signatureChunk = Data()
         signatureChunk.append(writer.lengthAndData(of: r))
@@ -123,6 +135,10 @@ extension Agent {
         sub.append(writer.lengthAndData(of: signatureChunk))
         signedData.append(writer.lengthAndData(of: sub))
 
+        if let witness = witness {
+            try witness.witness(accessTo: secret, by: provenance)
+        }
+
         os_log(.debug, "Agent signed request")
 
         return signedData
@@ -130,12 +146,29 @@ extension Agent {
 
 }
 
+extension Agent {
+
+    func secret(matching hash: Data) -> (AnySecretStore, AnySecret)? {
+        storeList.stores.compactMap { store -> (AnySecretStore, AnySecret)? in
+            let allMatching = store.secrets.filter { secret in
+                hash == writer.data(secret: secret)
+            }
+            if let matching = allMatching.first {
+                return (store, matching)
+            }
+            return nil
+        }.first
+    }
+
+}
+
 
 extension Agent {
 
     enum AgentError: Error {
         case unhandledType
         case noMatchingKey
+        case unsupportedKeyType
     }
 
 }

SecretAgentKit/FileHandleProtocols.swift

@@ -0,0 +1,26 @@
+import Foundation
+
+public protocol FileHandleReader {
+
+    var availableData: Data { get }
+    var fileDescriptor: Int32 { get }
+    var pidOfConnectedProcess: Int32 { get }
+
+}
+
+public protocol FileHandleWriter {
+
+    func write(_ data: Data)
+
+}
+
+extension FileHandle: FileHandleReader, FileHandleWriter {
+
+    public var pidOfConnectedProcess: Int32 {
+        let pidPointer = UnsafeMutableRawPointer.allocate(byteCount: 4, alignment: 1)
+        var len = socklen_t(MemoryLayout<Int32>.size)
+        getsockopt(fileDescriptor, SOCK_STREAM, LOCAL_PEERPID, pidPointer, &len)
+        return pidPointer.load(as: Int32.self)
+    }
+
+}

SecretAgentKit/Info.plist

@@ -19,6 +19,6 @@
 	<key>CFBundleVersion</key>
 	<string>$(CURRENT_PROJECT_VERSION)</string>
 	<key>NSHumanReadableCopyright</key>
-	<string>Copyright © 2020 Max Goedjen. All rights reserved.</string>
+	<string>$(PRODUCT_NAME) is MIT Licensed.</string>
 </dict>
 </plist>

SecretAgentKit/SSHAgentProtocol.swift

@@ -12,7 +12,7 @@ extension SSHAgent {
             switch self {
             case .requestIdentities:
                 return "RequestIdentities"
-            default:
+            case .signRequest:
                 return "SignRequest"
             }
         }

SecretAgentKit/SecretAgentKit.h

@@ -1,12 +1,14 @@
-//
-//  SecretAgentKit.h
-//  SecretAgentKit
-//
-//  Created by Max Goedjen on 2/22/20.
-//  Copyright © 2020 Max Goedjen. All rights reserved.
-//
-
 #import <Foundation/Foundation.h>
+#import <Security/Security.h>
+
+
+// Forward declarations
+
+// from libproc.h
+int proc_pidpath(int pid, void * buffer, uint32_t  buffersize);
+
+// from SecTask.h
+OSStatus SecCodeCreateWithPID(int32_t, SecCSFlags, SecCodeRef *);
 
 //! Project version number for SecretAgentKit.
 FOUNDATION_EXPORT double SecretAgentKitVersionNumber;
@@ -14,6 +16,4 @@ FOUNDATION_EXPORT double SecretAgentKitVersionNumber;
 //! Project version string for SecretAgentKit.
 FOUNDATION_EXPORT const unsigned char SecretAgentKitVersionString[];
 
-// In this header, you should import all the public headers of your framework using statements like #import <SecretAgentKit/PublicHeader.h>
-
 

SecretAgentKit/SigningRequestProvenance.swift

@@ -0,0 +1,45 @@
+import Foundation
+import AppKit
+
+public struct SigningRequestProvenance: Equatable {
+
+    public var chain: [Process]
+    public init(root: Process) {
+        self.chain = [root]
+    }
+
+}
+
+extension SigningRequestProvenance {
+
+    public var origin: Process {
+        chain.last!
+    }
+
+    public var intact: Bool {
+        return chain.reduce(true) { $0 && $1.validSignature }
+    }
+
+}
+
+extension SigningRequestProvenance {
+
+    public struct Process: Equatable {
+
+        public let pid: Int32
+        public let name: String
+        public let path: String
+        public let validSignature: Bool
+        let parentPID: Int32?
+
+        init(pid: Int32, name: String, path: String, validSignature: Bool, parentPID: Int32?) {
+            self.pid = pid
+            self.name = name
+            self.path = path
+            self.validSignature = validSignature
+            self.parentPID = parentPID
+        }
+
+    }
+
+}

SecretAgentKit/SigningRequestTracer.swift

@@ -0,0 +1,39 @@
+import Foundation
+import AppKit
+import Security
+
+struct SigningRequestTracer {
+
+    func provenance(from fileHandleReader: FileHandleReader) -> SigningRequestProvenance {
+        let firstInfo = process(from: fileHandleReader.pidOfConnectedProcess)
+
+        var provenance = SigningRequestProvenance(root: firstInfo)
+        while NSRunningApplication(processIdentifier: provenance.origin.pid) == nil && provenance.origin.parentPID != nil {
+            provenance.chain.append(process(from: provenance.origin.parentPID!))
+        }
+        return provenance
+    }
+
+    func pidAndNameInfo(from pid: Int32) -> kinfo_proc {
+        var len = MemoryLayout<kinfo_proc>.size
+        let infoPointer = UnsafeMutableRawPointer.allocate(byteCount: len, alignment: 1)
+        var name: [Int32] = [CTL_KERN, KERN_PROC, KERN_PROC_PID, pid]
+        sysctl(&name, UInt32(name.count), infoPointer, &len, nil, 0)
+        return infoPointer.load(as: kinfo_proc.self)
+    }
+
+    func process(from pid: Int32) -> SigningRequestProvenance.Process {
+        var pidAndNameInfo = self.pidAndNameInfo(from: pid)
+        let ppid = pidAndNameInfo.kp_eproc.e_ppid != 0 ? pidAndNameInfo.kp_eproc.e_ppid : nil
+        let procName = String(cString: &pidAndNameInfo.kp_proc.p_comm.0)
+        let pathPointer = UnsafeMutablePointer<UInt8>.allocate(capacity: Int(MAXPATHLEN))
+        _ = proc_pidpath(pid, pathPointer, UInt32(MAXPATHLEN))
+        let path = String(cString: pathPointer)
+        var secCode: Unmanaged<SecCode>!
+        let flags: SecCSFlags = [.considerExpiration, .enforceRevocationChecks]
+        SecCodeCreateWithPID(pid, SecCSFlags(), &secCode)
+        let valid = SecCodeCheckValidity(secCode.takeRetainedValue(), flags, nil) == errSecSuccess
+        return SigningRequestProvenance.Process(pid: pid, name: procName, path: path, validSignature: valid, parentPID: ppid)
+    }
+
+}

SecretAgentKit/SigningWitness.swift

@@ -0,0 +1,9 @@
+import Foundation
+import SecretKit
+
+public protocol SigningWitness {
+
+    func speakNowOrForeverHoldYourPeace(forAccessTo secret: AnySecret, by provenance: SigningRequestProvenance) throws
+    func witness(accessTo secret: AnySecret, by provenance: SigningRequestProvenance) throws
+
+}

SecretAgentKit/SocketController.swift

@@ -1,13 +1,13 @@
 import Foundation
 import OSLog
 
-class SocketController {
+public class SocketController {
 
     fileprivate var fileHandle: FileHandle?
     fileprivate var port: SocketPort?
-    var handler: ((FileHandle) -> Void)?
+    public var handler: ((FileHandleReader, FileHandleWriter) -> Void)?
 
-    init(path: String) {
+    public init(path: String) {
         os_log(.debug, "Socket controller setting up at %@", path)
         if let _ = try? FileManager.default.removeItem(atPath: path) {
             os_log(.debug, "Socket controller removed existing socket")
@@ -52,7 +52,7 @@ class SocketController {
     @objc func handleConnectionAccept(notification: Notification) {
         os_log(.debug, "Socket controller accepted connection")
         guard let new = notification.userInfo?[NSFileHandleNotificationFileHandleItem] as? FileHandle else { return }
-        handler?(new)
+        handler?(new, new)
         new.waitForDataInBackgroundAndNotify()
         fileHandle?.acceptConnectionInBackgroundAndNotify(forModes: [RunLoop.current.currentMode!])
     }
@@ -61,7 +61,7 @@ class SocketController {
         os_log(.debug, "Socket controller has new data available")
         guard let new = notification.object as? FileHandle else { return }
         os_log(.debug, "Socket controller received new file handle")
-        handler?(new)
+        handler?(new, new)
     }
 
 }

SecretAgentKitTests/AgentTests.swift

@@ -0,0 +1,169 @@
+import Foundation
+import XCTest
+import CryptoKit
+@testable import SecretKit
+@testable import SecretAgentKit
+
+class AgentTests: XCTestCase {
+
+    let stubWriter = StubFileHandleWriter()
+
+    // MARK: Identity Listing
+
+    func testEmptyStores() {
+        let stubReader = StubFileHandleReader(availableData: Constants.Requests.requestIdentities)
+        let agent = Agent(storeList: SecretStoreList())
+        agent.handle(reader: stubReader, writer: stubWriter)
+        XCTAssertEqual(stubWriter.data, Constants.Responses.requestIdentitiesEmpty)
+    }
+
+    func testIdentitiesList() {
+        let stubReader = StubFileHandleReader(availableData: Constants.Requests.requestIdentities)
+        let list = storeList(with: [Constants.Secrets.ecdsa256Secret, Constants.Secrets.ecdsa384Secret])
+        let agent = Agent(storeList: list)
+        agent.handle(reader: stubReader, writer: stubWriter)
+        XCTAssertEqual(stubWriter.data, Constants.Responses.requestIdentitiesMultiple)
+    }
+
+    // MARK: Signatures
+
+    func testNoMatchingIdentities() {
+        let stubReader = StubFileHandleReader(availableData: Constants.Requests.requestSignatureWithNoneMatching)
+        let list = storeList(with: [Constants.Secrets.ecdsa256Secret, Constants.Secrets.ecdsa384Secret])
+        let agent = Agent(storeList: list)
+        agent.handle(reader: stubReader, writer: stubWriter)
+//        XCTAssertEqual(stubWriter.data, Constants.Responses.requestFailure)
+    }
+
+    func testSignature() {
+        let stubReader = StubFileHandleReader(availableData: Constants.Requests.requestSignature)
+        let requestReader = OpenSSHReader(data: Constants.Requests.requestSignature[5...])
+        _ = requestReader.readNextChunk()
+        let dataToSign = requestReader.readNextChunk()
+        let list = storeList(with: [Constants.Secrets.ecdsa256Secret, Constants.Secrets.ecdsa384Secret])
+        let agent = Agent(storeList: list)
+        agent.handle(reader: stubReader, writer: stubWriter)
+        let outer = OpenSSHReader(data: stubWriter.data[5...])
+        let payload = outer.readNextChunk()
+        let inner = OpenSSHReader(data: payload)
+        _ = inner.readNextChunk()
+        let signedData = inner.readNextChunk()
+        let rsData = OpenSSHReader(data: signedData)
+        var r = rsData.readNextChunk()
+        var s = rsData.readNextChunk()
+        // This is fine IRL, but it freaks out CryptoKit
+        if r[0] == 0 {
+            r.removeFirst()
+        }
+        if s[0] == 0 {
+            s.removeFirst()
+        }
+        var rs = r
+        rs.append(s)
+        let signature = try! P256.Signing.ECDSASignature(rawRepresentation: rs)
+        let valid = try! P256.Signing.PublicKey(x963Representation: Constants.Secrets.ecdsa256Secret.publicKey).isValidSignature(signature, for: dataToSign)
+        XCTAssertTrue(valid)
+    }
+
+    // MARK: Witness protocol
+
+    func testWitnessObjectionStopsRequest() {
+        let stubReader = StubFileHandleReader(availableData: Constants.Requests.requestSignature)
+        let list = storeList(with: [Constants.Secrets.ecdsa256Secret])
+        let witness = StubWitness(speakNow: { _,_  in
+            return true
+        }, witness: { _, _ in })
+        let agent = Agent(storeList: list, witness: witness)
+        agent.handle(reader: stubReader, writer: stubWriter)
+        XCTAssertEqual(stubWriter.data, Constants.Responses.requestFailure)
+    }
+
+    func testWitnessSignature() {
+        let stubReader = StubFileHandleReader(availableData: Constants.Requests.requestSignature)
+        let list = storeList(with: [Constants.Secrets.ecdsa256Secret])
+        var witnessed = false
+        let witness = StubWitness(speakNow: { _, trace  in
+            return false
+        }, witness: { _, trace in
+            witnessed = true
+        })
+        let agent = Agent(storeList: list, witness: witness)
+        agent.handle(reader: stubReader, writer: stubWriter)
+        XCTAssertTrue(witnessed)
+    }
+
+    func testRequestTracing() {
+        let stubReader = StubFileHandleReader(availableData: Constants.Requests.requestSignature)
+        let list = storeList(with: [Constants.Secrets.ecdsa256Secret])
+        var speakNowTrace: SigningRequestProvenance! = nil
+        var witnessTrace: SigningRequestProvenance! = nil
+        let witness = StubWitness(speakNow: { _, trace  in
+            speakNowTrace = trace
+            return false
+        }, witness: { _, trace in
+            witnessTrace = trace
+        })
+        let agent = Agent(storeList: list, witness: witness)
+        agent.handle(reader: stubReader, writer: stubWriter)
+        XCTAssertEqual(witnessTrace, speakNowTrace)
+        XCTAssertEqual(witnessTrace.origin.name, "Finder")
+        XCTAssertEqual(witnessTrace.origin.validSignature, true)
+        XCTAssertEqual(witnessTrace.origin.parentPID, 1)
+    }
+
+    // MARK: Exception Handling
+
+    func testSignatureException() {
+        let stubReader = StubFileHandleReader(availableData: Constants.Requests.requestSignature)
+        let list = storeList(with: [Constants.Secrets.ecdsa256Secret, Constants.Secrets.ecdsa384Secret])
+        let store = list.stores.first?.base as! Stub.Store
+        store.shouldThrow = true
+        let agent = Agent(storeList: list)
+        agent.handle(reader: stubReader, writer: stubWriter)
+        XCTAssertEqual(stubWriter.data, Constants.Responses.requestFailure)
+    }
+
+    // MARK: Unsupported
+
+    func testUnhandledAdd() {
+        let stubReader = StubFileHandleReader(availableData: Constants.Requests.addIdentity)
+        let agent = Agent(storeList: SecretStoreList())
+        agent.handle(reader: stubReader, writer: stubWriter)
+        XCTAssertEqual(stubWriter.data, Constants.Responses.requestFailure)
+    }
+
+}
+
+extension AgentTests {
+
+    func storeList(with secrets: [Stub.Secret]) -> SecretStoreList {
+        let store = Stub.Store()
+        store.secrets.append(contentsOf: secrets)
+        let storeList = SecretStoreList()
+        storeList.add(store: store)
+        return storeList
+    }
+
+    enum Constants {
+
+        enum Requests {
+            static let requestIdentities = Data(base64Encoded: "AAAAAQs=")!
+            static let addIdentity = Data(base64Encoded: "AAAAARE=")!
+            static let requestSignatureWithNoneMatching = Data(base64Encoded: "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")!
+            static let requestSignature = Data(base64Encoded: "AAABRA0AAABoAAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBKzOkUiVJEcACMtAd9X7xalbc0FYZyhbmv2dsWl4IP2GWIi+RcsaHQNw+nAIQ8CKEYmLnl0VLDp5Ef8KMhgIy08AAADPAAAAIBIFsbCZ4/dhBmLNGHm0GKj7EJ4N8k/jXRxlyg+LFIYzMgAAAANnaXQAAAAOc3NoLWNvbm5lY3Rpb24AAAAJcHVibGlja2V5AQAAABNlY2RzYS1zaGEyLW5pc3RwMjU2AAAAaAAAABNlY2RzYS1zaGEyLW5pc3RwMjU2AAAACG5pc3RwMjU2AAAAQQSszpFIlSRHAAjLQHfV+8WpW3NBWGcoW5r9nbFpeCD9hliIvkXLGh0DcPpwCEPAihGJi55dFSw6eRH/CjIYCMtPAAAAAA==")!
+        }
+
+        enum Responses {
+            static let requestIdentitiesEmpty = Data(base64Encoded: "AAAABQwAAAAA")!
+            static let requestIdentitiesMultiple = Data(base64Encoded: "AAABKwwAAAACAAAAaAAAABNlY2RzYS1zaGEyLW5pc3RwMjU2AAAACG5pc3RwMjU2AAAAQQSszpFIlSRHAAjLQHfV+8WpW3NBWGcoW5r9nbFpeCD9hliIvkXLGh0DcPpwCEPAihGJi55dFSw6eRH/CjIYCMtPAAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAACIAAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBLKSzA5q3jCb3q0JKigvcxfWVGrJ+bklpG0Zc9YzUwrbsh9SipvlSJi+sHQI+O0m88DOpRBAtuAHX60euD/Yv250tovN7/+MEFbXGZ/hLdd0BoFpWbLfJcQj806KJGlcDAAAABNlY2RzYS1zaGEyLW5pc3RwMzg0")!
+            static let requestFailure = Data(base64Encoded: "AAAAAQU=")!
+        }
+
+        enum Secrets {
+            static let ecdsa256Secret =  Stub.Secret(keySize: 256, publicKey: Data(base64Encoded: "BKzOkUiVJEcACMtAd9X7xalbc0FYZyhbmv2dsWl4IP2GWIi+RcsaHQNw+nAIQ8CKEYmLnl0VLDp5Ef8KMhgIy08=")!, privateKey: Data(base64Encoded: "BKzOkUiVJEcACMtAd9X7xalbc0FYZyhbmv2dsWl4IP2GWIi+RcsaHQNw+nAIQ8CKEYmLnl0VLDp5Ef8KMhgIy09nw780wy/TSfUmzj15iJkV234AaCLNl+H8qFL6qK8VIg==")!)
+            static let ecdsa384Secret =  Stub.Secret(keySize: 384, publicKey: Data(base64Encoded: "BLKSzA5q3jCb3q0JKigvcxfWVGrJ+bklpG0Zc9YzUwrbsh9SipvlSJi+sHQI+O0m88DOpRBAtuAHX60euD/Yv250tovN7/+MEFbXGZ/hLdd0BoFpWbLfJcQj806KJGlcDA==")!, privateKey: Data(base64Encoded: "BLKSzA5q3jCb3q0JKigvcxfWVGrJ+bklpG0Zc9YzUwrbsh9SipvlSJi+sHQI+O0m88DOpRBAtuAHX60euD/Yv250tovN7/+MEFbXGZ/hLdd0BoFpWbLfJcQj806KJGlcDHNapAOzrt9E+9QC4/KYoXS7Uw4pmdAz53uIj02tttiq3c0ZyIQ7XoscWWRqRrz8Kw==")!)
+        }
+
+    }
+
+}

SecretAgentKitTests/SecretAgentKitTests.swift

@@ -1,34 +0,0 @@
-//
-//  SecretAgentKitTests.swift
-//  SecretAgentKitTests
-//
-//  Created by Max Goedjen on 2/22/20.
-//  Copyright © 2020 Max Goedjen. All rights reserved.
-//
-
-import XCTest
-@testable import SecretAgentKit
-
-class SecretAgentKitTests: XCTestCase {
-
-    override func setUpWithError() throws {
-        // Put setup code here. This method is called before the invocation of each test method in the class.
-    }
-
-    override func tearDownWithError() throws {
-        // Put teardown code here. This method is called after the invocation of each test method in the class.
-    }
-
-    func testExample() throws {
-        // This is an example of a functional test case.
-        // Use XCTAssert and related functions to verify your tests produce the correct results.
-    }
-
-    func testPerformanceExample() throws {
-        // This is an example of a performance test case.
-        self.measure {
-            // Put the code you want to measure the time of here.
-        }
-    }
-
-}

SecretAgentKitTests/StubFileHandleReader.swift

@@ -0,0 +1,14 @@
+import SecretAgentKit
+import AppKit
+
+struct StubFileHandleReader: FileHandleReader {
+
+    let availableData: Data
+    var fileDescriptor: Int32 {
+        NSWorkspace.shared.runningApplications.filter({ $0.localizedName == "Finder" }).first!.processIdentifier
+    }
+    var pidOfConnectedProcess: Int32 {
+        fileDescriptor
+    }
+
+}

SecretAgentKitTests/StubFileHandleWriter.swift

@@ -0,0 +1,11 @@
+import SecretAgentKit
+
+class StubFileHandleWriter: FileHandleWriter {
+
+    var data = Data()
+
+    func write(_ data: Data) {
+        self.data.append(data)
+    }
+
+}

SecretAgentKitTests/StubStore.swift

@@ -0,0 +1,113 @@
+import SecretKit
+import CryptoKit
+
+struct Stub {}
+
+extension Stub {
+
+    public class Store: SecretStore {
+
+        public let isAvailable = true
+        public let id = UUID()
+        public let name = "Stub"
+        public var secrets: [Secret] = []
+        public var shouldThrow = false
+
+        public init() {
+//            try! create(size: 256)
+//            try! create(size: 384)
+        }
+
+        public func create(size: Int) throws {
+            let flags: SecAccessControlCreateFlags = []
+            let access =
+                SecAccessControlCreateWithFlags(kCFAllocatorDefault,
+                                                kSecAttrAccessibleWhenUnlockedThisDeviceOnly,
+                                                flags,
+                                                nil) as Any
+
+            let attributes = [
+                kSecAttrLabel: name,
+                kSecAttrKeyType: kSecAttrKeyTypeECSECPrimeRandom,
+                kSecAttrKeySizeInBits: size,
+                kSecPrivateKeyAttrs: [
+                    kSecAttrIsPermanent: true,
+                    kSecAttrAccessControl: access
+                ]
+                ] as CFDictionary
+
+            var privateKey: SecKey! = nil
+            var publicKey: SecKey! = nil
+            SecKeyGeneratePair(attributes, &publicKey, &privateKey)
+            let publicAttributes = SecKeyCopyAttributes(publicKey) as! [CFString: Any]
+            let privateAttributes = SecKeyCopyAttributes(privateKey) as! [CFString: Any]
+            let publicData = (publicAttributes[kSecValueData] as! Data)
+            let privateData = (privateAttributes[kSecValueData] as! Data)
+            let secret = Secret(keySize: size, publicKey: publicData, privateKey: privateData)
+            print(secret)
+            print("Public Key OpenSSH: \(OpenSSHKeyWriter().openSSHString(secret: secret))")
+        }
+
+        public func sign(data: Data, with secret: Secret) throws -> Data {
+            guard !shouldThrow else {
+                throw NSError()
+            }
+            let privateKey = SecKeyCreateWithData(secret.privateKey as CFData, [
+                kSecAttrKeyType: kSecAttrKeyTypeECSECPrimeRandom,
+                kSecAttrKeySizeInBits: secret.keySize,
+                kSecAttrKeyClass: kSecAttrKeyClassPrivate
+                ] as CFDictionary
+                , nil)!
+            let signatureAlgorithm: SecKeyAlgorithm
+            switch secret.keySize {
+            case 256:
+                signatureAlgorithm = .ecdsaSignatureMessageX962SHA256
+            case 384:
+                signatureAlgorithm = .ecdsaSignatureMessageX962SHA384
+            default:
+                fatalError()
+            }
+            return SecKeyCreateSignature(privateKey, signatureAlgorithm, data as CFData, nil)! as Data
+        }
+
+    }
+
+}
+
+extension Stub {
+
+    struct Secret: SecretKit.Secret, CustomDebugStringConvertible {
+
+        let id = UUID().uuidString.data(using: .utf8)!
+        let name = UUID().uuidString
+        let algorithm = Algorithm.ellipticCurve
+
+        let keySize: Int
+        let publicKey: Data
+        let privateKey: Data
+
+        init(keySize: Int, publicKey: Data, privateKey: Data) {
+            self.keySize = keySize
+            self.publicKey = publicKey
+            self.privateKey = privateKey
+        }
+
+        var debugDescription: String {
+            """
+            Key Size \(keySize)
+            Private: \(privateKey.base64EncodedString())
+            Public: \(publicKey.base64EncodedString())
+            """
+        }
+
+    }
+
+}
+
+
+extension Stub.Store {
+
+    struct StubError: Error {
+    }
+
+}

SecretAgentKitTests/StubWitness.swift

@@ -0,0 +1,32 @@
+import SecretKit
+import SecretAgentKit
+
+struct StubWitness {
+
+    let speakNow: (AnySecret, SigningRequestProvenance) -> Bool
+    let witness: (AnySecret, SigningRequestProvenance) -> ()
+
+}
+
+extension StubWitness: SigningWitness {
+
+    func speakNowOrForeverHoldYourPeace(forAccessTo secret: AnySecret, by provenance: SigningRequestProvenance) throws {
+        let objection = speakNow(secret, provenance)
+        if objection {
+            throw TheresMyChance()
+        }
+    }
+
+    func witness(accessTo secret: AnySecret, by provenance: SigningRequestProvenance) throws {
+        witness(secret, provenance)
+    }
+
+}
+
+extension StubWitness {
+
+    struct TheresMyChance: Error {
+
+    }
+
+}

SecretKit/Common/OpenSSH/OpenSSHReader.swift

@@ -8,7 +8,7 @@ public class OpenSSHReader {
         remaining = Data(data)
     }
 
-    public func readNextChunk() throws -> Data {
+    public func readNextChunk() -> Data {
         let lengthRange = 0..<(UInt32.bitWidth/8)
         let lengthChunk = remaining[lengthRange]
         remaining.removeSubrange(lengthRange)

SecretKit/Common/SecretStoreList.swift

@@ -20,6 +20,10 @@ public class SecretStoreList: ObservableObject {
         addInternal(store: modifiable)
     }
 
+    public var anyAvailable: Bool {
+        stores.reduce(false, { $0 || $1.isAvailable })
+    }
+
 }
 
 extension SecretStoreList {

SecretKit/Common/Types/Secret.swift

@@ -7,7 +7,7 @@ public protocol Secret: Identifiable, Hashable {
 
 }
 
-public enum Algorithm {
+public enum Algorithm: Hashable {
     case ellipticCurve
     public init(secAttr: NSNumber) {
         let secAttrString = secAttr.stringValue as CFString

SecretKit/Info.plist

@@ -19,6 +19,6 @@
 	<key>CFBundleVersion</key>
 	<string>$(CURRENT_PROJECT_VERSION)</string>
 	<key>NSHumanReadableCopyright</key>
-	<string>Copyright © 2020 Max Goedjen. All rights reserved.</string>
+	<string>$(PRODUCT_NAME) is MIT Licensed.</string>
 </dict>
 </plist>

SecretKit/SecretKit.h

@@ -1,11 +1,3 @@
-//
-//  SecretKit.h
-//  SecretKit
-//
-//  Created by Max Goedjen on 2/18/20.
-//  Copyright © 2020 Max Goedjen. All rights reserved.
-//
-
 #import <Foundation/Foundation.h>
 
 //! Project version number for SecretKit.

SecretKit/SmartCard/SmartCardStore.swift

@@ -11,16 +11,17 @@ extension SmartCard {
         // TODO: Read actual smart card name, eg "YubiKey 5c"
         @Published public var isAvailable: Bool = false
         public let id = UUID()
-        public let name = NSLocalizedString("Smart Card", comment: "Smart Card")
+        public fileprivate(set) var name = NSLocalizedString("Smart Card", comment: "Smart Card")
         @Published public fileprivate(set) var secrets: [Secret] = []
         fileprivate let watcher = TKTokenWatcher()
         fileprivate var tokenID: String?
 
         public init() {
-            tokenID = watcher.tokenIDs.filter { !$0.contains("setoken") }.first
+            tokenID = watcher.nonSecureEnclaveTokens.first
             watcher.setInsertionHandler { string in
                 guard self.tokenID == nil else { return }
                 guard !string.contains("setoken") else { return }
+
                 self.tokenID = string
                 self.reloadSecrets()
                 self.watcher.addRemovalHandler(self.smartcardRemoved, forTokenID: string)
@@ -97,6 +98,14 @@ extension SmartCard.Store {
 
     fileprivate func loadSecrets() {
         guard let tokenID = tokenID else { return }
+        // Hack to read name if there's only one smart card
+        let slotNames = TKSmartCardSlotManager().slotNames
+        if watcher.nonSecureEnclaveTokens.count == 1 && slotNames.count == 1 {
+            name = slotNames.first!
+        } else {
+            name = NSLocalizedString("Smart Card", comment: "Smart Card")
+        }
+
         let attributes = [
             kSecClass: kSecClassKey,
             kSecAttrTokenID: tokenID,
@@ -124,6 +133,14 @@ extension SmartCard.Store {
 
 }
 
+extension TKTokenWatcher {
+
+    fileprivate var nonSecureEnclaveTokens: [String] {
+        tokenIDs.filter { !$0.contains("setoken") }
+    }
+
+}
+
 extension SmartCard {
 
     public struct KeychainError: Error {

SecretKitTests/AnySecretTests.swift

@@ -0,0 +1,17 @@
+import Foundation
+import XCTest
+@testable import SecretKit
+
+class AnySecretTests: XCTestCase {
+
+    func testEraser() {
+        let secret = SmartCard.Secret(id: UUID().uuidString.data(using: .utf8)!, name: "Name", algorithm: .ellipticCurve, keySize: 256, publicKey: UUID().uuidString.data(using: .utf8)!)
+        let erased = AnySecret(secret)
+        XCTAssert(erased.id == secret.id as AnyHashable)
+        XCTAssert(erased.name == secret.name)
+        XCTAssert(erased.algorithm == secret.algorithm)
+        XCTAssert(erased.keySize == secret.keySize)
+        XCTAssert(erased.publicKey == secret.publicKey)
+    }
+
+}

SecretKitTests/OpenSSHReaderTests.swift

@@ -0,0 +1,25 @@
+import Foundation
+import XCTest
+@testable import SecretKit
+
+class OpenSSHReaderTests: XCTestCase {
+
+    func testSignatureRequest() {
+        let reader = OpenSSHReader(data: Constants.signatureRequest)
+        let hash = reader.readNextChunk()
+        XCTAssert(hash == Data(base64Encoded: "AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBEqCbkJbOHy5S1wVCaJoKPmpS0egM4frMqllgnlRRQ/Uvnn6EVS8oV03cPA2Bz0EdESyRKA/sbmn0aBtgjIwGELxu45UXEW1TEz6TxyS0u3vuIqR3Wo1CrQWRDnkrG/pBQ=="))
+        let dataToSign = reader.readNextChunk()
+        XCTAssert(dataToSign == Data(base64Encoded: "AAAAICi5xf1ixOestUlxdjvt/BDcM+rzhwy7Vo8cW5YcxA8+MgAAAANnaXQAAAAOc3NoLWNvbm5lY3Rpb24AAAAJcHVibGlja2V5AQAAABNlY2RzYS1zaGEyLW5pc3RwMzg0AAAAiAAAABNlY2RzYS1zaGEyLW5pc3RwMzg0AAAACG5pc3RwMzg0AAAAYQRKgm5CWzh8uUtcFQmiaCj5qUtHoDOH6zKpZYJ5UUUP1L55+hFUvKFdN3DwNgc9BHREskSgP7G5p9GgbYIyMBhC8buOVFxFtUxM+k8cktLt77iKkd1qNQq0FkQ55Kxv6QU="))
+        let empty = reader.readNextChunk()
+        XCTAssert(empty.isEmpty)
+    }
+
+}
+
+extension OpenSSHReaderTests {
+
+    enum Constants {
+        static let signatureRequest = Data(base64Encoded: "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")!
+    }
+
+}

SecretKitTests/OpenSSHWriterTests.swift

@@ -0,0 +1,45 @@
+import Foundation
+import XCTest
+@testable import SecretKit
+
+class OpenSSHWriterTests: XCTestCase {
+
+    let writer = OpenSSHKeyWriter()
+
+    func testECDSA256Fingerprint() {
+        XCTAssertEqual(writer.openSSHFingerprint(secret:  Constants.ecdsa256Secret), "dc:60:4d:ff:c2:d9:18:8b:2f:24:40:b5:7f:43:47:e5")
+    }
+
+    func testECDSA256PublicKey() {
+        XCTAssertEqual(writer.openSSHString(secret:  Constants.ecdsa256Secret),
+        "ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBOVEjgAA5PHqRgwykjN5qM21uWCHFSY/Sqo5gkHAkn+e1MMQKHOLga7ucB9b3mif33MBid59GRK9GEPVlMiSQwo=")
+    }
+
+    func testECDSA256Hash() {
+    XCTAssertEqual(writer.data(secret: Constants.ecdsa256Secret), Data(base64Encoded: "AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBOVEjgAA5PHqRgwykjN5qM21uWCHFSY/Sqo5gkHAkn+e1MMQKHOLga7ucB9b3mif33MBid59GRK9GEPVlMiSQwo="))
+    }
+
+    func testECDSA384Fingerprint() {
+        XCTAssertEqual(writer.openSSHFingerprint(secret:  Constants.ecdsa384Secret), "66:e0:66:d7:41:ed:19:8e:e2:20:df:ce:ac:7e:2b:6e")
+    }
+
+    func testECDSA384PublicKey() {
+        XCTAssertEqual(writer.openSSHString(secret:  Constants.ecdsa384Secret),
+                       "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBG2MNc/C5OTHFE2tBvbZCVcpOGa8vBMquiTLkH4lwkeqOPxhi+PyYUfQZMTRJNPiTyWPoMBqNiCIFRVv60yPN/AHufHaOgbdTP42EgMlMMImkAjYUEv9DESHTVIs2PW1yQ==")
+    }
+
+    func testECDSA384Hash() {
+        XCTAssertEqual(writer.data(secret: Constants.ecdsa384Secret), Data(base64Encoded: "AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBG2MNc/C5OTHFE2tBvbZCVcpOGa8vBMquiTLkH4lwkeqOPxhi+PyYUfQZMTRJNPiTyWPoMBqNiCIFRVv60yPN/AHufHaOgbdTP42EgMlMMImkAjYUEv9DESHTVIs2PW1yQ=="))
+    }
+
+}
+
+extension OpenSSHWriterTests {
+
+    enum Constants {
+        static let ecdsa256Secret =  SmartCard.Secret(id: Data(), name: "Test Key (ECDSA 256)", algorithm: .ellipticCurve, keySize: 256, publicKey: Data(base64Encoded: "BOVEjgAA5PHqRgwykjN5qM21uWCHFSY/Sqo5gkHAkn+e1MMQKHOLga7ucB9b3mif33MBid59GRK9GEPVlMiSQwo=")!)
+        static let ecdsa384Secret =  SmartCard.Secret(id: Data(), name: "Test Key (ECDSA 384)", algorithm: .ellipticCurve, keySize: 384, publicKey: Data(base64Encoded: "BG2MNc/C5OTHFE2tBvbZCVcpOGa8vBMquiTLkH4lwkeqOPxhi+PyYUfQZMTRJNPiTyWPoMBqNiCIFRVv60yPN/AHufHaOgbdTP42EgMlMMImkAjYUEv9DESHTVIs2PW1yQ==")!)
+
+    }
+
+}

SecretKitTests/SecretKitTests.swift

@@ -1,34 +0,0 @@
-//
-//  SecretKitTests.swift
-//  SecretKitTests
-//
-//  Created by Max Goedjen on 2/18/20.
-//  Copyright © 2020 Max Goedjen. All rights reserved.
-//
-
-import XCTest
-@testable import SecretKit
-
-class SecretKitTests: XCTestCase {
-
-    override func setUp() {
-        // Put setup code here. This method is called before the invocation of each test method in the class.
-    }
-
-    override func tearDown() {
-        // Put teardown code here. This method is called after the invocation of each test method in the class.
-    }
-
-    func testExample() {
-        // This is an example of a functional test case.
-        // Use XCTAssert and related functions to verify your tests produce the correct results.
-    }
-
-    func testPerformanceExample() {
-        // This is an example of a performance test case.
-        self.measure {
-            // Put the code you want to measure the time of here.
-        }
-    }
-
-}

Secretive.xcodeproj/xcshareddata/xcschemes/SecretAgent.xcscheme

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
    LastUpgradeVersion = "1140"
-   version = "1.3">
+   version = "1.7">
    <BuildAction
       parallelizeBuildables = "YES"
       buildImplicitDependencies = "YES">
@@ -23,11 +23,47 @@
       </BuildActionEntries>
    </BuildAction>
    <TestAction
-      buildConfiguration = "Debug"
+      buildConfiguration = "Test"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
       shouldUseLaunchSchemeArgsEnv = "YES">
+      <TestPlans>
+         <TestPlanReference
+            reference = "container:Config/Secretive.xctestplan"
+            default = "YES">
+         </TestPlanReference>
+      </TestPlans>
       <Testables>
+         <TestableReference
+            skipped = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "5099A073240242BA0062B6F2"
+               BuildableName = "SecretAgentKitTests.xctest"
+               BlueprintName = "SecretAgentKitTests"
+               ReferencedContainer = "container:Secretive.xcodeproj">
+            </BuildableReference>
+         </TestableReference>
+         <TestableReference
+            skipped = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "50617DAF23FCE4AB0099B055"
+               BuildableName = "SecretKitTests.xctest"
+               BlueprintName = "SecretKitTests"
+               ReferencedContainer = "container:Secretive.xcodeproj">
+            </BuildableReference>
+         </TestableReference>
+         <TestableReference
+            skipped = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "50617D9323FCE48E0099B055"
+               BuildableName = "SecretiveTests.xctest"
+               BlueprintName = "SecretiveTests"
+               ReferencedContainer = "container:Secretive.xcodeproj">
+            </BuildableReference>
+         </TestableReference>
       </Testables>
    </TestAction>
    <LaunchAction

Secretive.xcodeproj/xcshareddata/xcschemes/SecretAgentKit.xcscheme

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
    LastUpgradeVersion = "1140"
-   version = "1.3">
+   version = "1.7">
    <BuildAction
       parallelizeBuildables = "YES"
       buildImplicitDependencies = "YES">
@@ -23,11 +23,29 @@
       </BuildActionEntries>
    </BuildAction>
    <TestAction
-      buildConfiguration = "Debug"
+      buildConfiguration = "Test"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
       shouldUseLaunchSchemeArgsEnv = "YES">
+      <TestPlans>
+         <TestPlanReference
+            reference = "container:Config/Secretive.xctestplan"
+            default = "YES">
+         </TestPlanReference>
+      </TestPlans>
       <Testables>
+         <TestableReference
+            skipped = "NO"
+            parallelizable = "YES"
+            testExecutionOrdering = "random">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "5099A073240242BA0062B6F2"
+               BuildableName = "SecretAgentKitTests.xctest"
+               BlueprintName = "SecretAgentKitTests"
+               ReferencedContainer = "container:Secretive.xcodeproj">
+            </BuildableReference>
+         </TestableReference>
       </Testables>
    </TestAction>
    <LaunchAction

Secretive.xcodeproj/xcshareddata/xcschemes/SecretKit.xcscheme

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
    LastUpgradeVersion = "1140"
-   version = "1.3">
+   version = "1.7">
    <BuildAction
       parallelizeBuildables = "YES"
       buildImplicitDependencies = "YES">
@@ -23,12 +23,16 @@
       </BuildActionEntries>
    </BuildAction>
    <TestAction
-      buildConfiguration = "Debug"
+      buildConfiguration = "Test"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
       shouldUseLaunchSchemeArgsEnv = "YES">
-      <Testables>
+      <TestPlans>
-      </Testables>
+         <TestPlanReference
+            reference = "container:Config/Secretive.xctestplan"
+            default = "YES">
+         </TestPlanReference>
+      </TestPlans>
    </TestAction>
    <LaunchAction
       buildConfiguration = "Debug"

Secretive.xcodeproj/xcshareddata/xcschemes/Secretive.xcscheme

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
    LastUpgradeVersion = "1140"
-   version = "1.3">
+   version = "1.7">
    <BuildAction
       parallelizeBuildables = "YES"
       buildImplicitDependencies = "YES">
@@ -23,10 +23,16 @@
       </BuildActionEntries>
    </BuildAction>
    <TestAction
-      buildConfiguration = "Debug"
+      buildConfiguration = "Test"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
       shouldUseLaunchSchemeArgsEnv = "YES">
+      <TestPlans>
+         <TestPlanReference
+            reference = "container:Config/Secretive.xctestplan"
+            default = "YES">
+         </TestPlanReference>
+      </TestPlans>
       <Testables>
          <TestableReference
             skipped = "NO">

Secretive/AppDelegate.swift

@@ -1,11 +1,13 @@
 import Cocoa
 import SwiftUI
 import SecretKit
+import Brief
 
 @NSApplicationMain
 class AppDelegate: NSObject, NSApplicationDelegate {
 
     var window: NSWindow!
+    @IBOutlet var newMenuItem: NSMenuItem!
     @IBOutlet var toolbar: NSToolbar!
     let storeList: SecretStoreList = {
         let list = SecretStoreList()
@@ -35,6 +37,7 @@ class AppDelegate: NSObject, NSApplicationDelegate {
             plus.view = NSButton(image: NSImage(named: NSImage.addTemplateName)!, target: self, action: #selector(add(sender:)))
             plus.layoutAttribute = .right
             window.addTitlebarAccessoryViewController(plus)
+            newMenuItem.isEnabled = true
         }
         runSetupIfNeeded()
     }
@@ -64,7 +67,7 @@ class AppDelegate: NSObject, NSApplicationDelegate {
 
     @IBAction func runSetup(sender: AnyObject?) {
         let setupWindow = NSWindow(
-            contentRect: NSRect(x: 0, y: 0, width: 480, height: 300),
+            contentRect: NSRect(x: 0, y: 0, width: 0, height: 0),
             styleMask: [.titled, .closable, .miniaturizable, .resizable, .fullSizeContentView],
             backing: .buffered, defer: false)
         let setupView = SetupView() { success in

Secretive/Base.lproj/Main.storyboard

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.Cocoa.Storyboard.XIB" version="3.0" toolsVersion="15702" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES">
+<document type="com.apple.InterfaceBuilder3.Cocoa.Storyboard.XIB" version="3.0" toolsVersion="16085" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES">
     <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="15702"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="16085"/>
         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
     </dependencies>
     <scenes>
@@ -9,7 +9,7 @@
         <scene sceneID="JPo-4y-FX3">
             <objects>
                 <application id="hnw-xV-0zn" sceneMemberID="viewController">
-                    <menu key="mainMenu" title="Main Menu" systemMenu="main" id="AYu-sK-qS6">
+                    <menu key="mainMenu" title="Main Menu" systemMenu="main" autoenablesItems="NO" id="AYu-sK-qS6">
                         <items>
                             <menuItem title="Secretive" id="1Xt-HY-uBw">
                                 <modifierMask key="keyEquivalentModifierMask"/>
@@ -57,9 +57,9 @@
                             </menuItem>
                             <menuItem title="File" id="dMs-cI-mzQ">
                                 <modifierMask key="keyEquivalentModifierMask"/>
-                                <menu key="submenu" title="File" id="bib-Uj-vzu">
+                                <menu key="submenu" title="File" autoenablesItems="NO" id="bib-Uj-vzu">
                                     <items>
-                                        <menuItem title="New" keyEquivalent="n" id="Was-JA-tGl">
+                                        <menuItem title="New" enabled="NO" keyEquivalent="n" id="Was-JA-tGl">
                                             <connections>
                                                 <action selector="addWithSender:" target="Voe-Tx-rLC" id="U1t-YZ-Hn5"/>
                                             </connections>
@@ -102,7 +102,7 @@
                                 <modifierMask key="keyEquivalentModifierMask"/>
                                 <menu key="submenu" title="Help" systemMenu="help" id="F2S-fz-NVQ">
                                     <items>
-                                        <menuItem title="Set Up Helper App" id="04y-R6-7bF">
+                                        <menuItem title="Setup Helper App" id="04y-R6-7bF">
                                             <modifierMask key="keyEquivalentModifierMask"/>
                                             <connections>
                                                 <action selector="runSetupWithSender:" target="Voe-Tx-rLC" id="Fty-2m-eng"/>
@@ -125,6 +125,7 @@
                 </application>
                 <customObject id="Voe-Tx-rLC" customClass="AppDelegate" customModule="Secretive" customModuleProvider="target">
                     <connections>
+                        <outlet property="newMenuItem" destination="Was-JA-tGl" id="C8s-uk-gMA"/>
                         <outlet property="toolbar" destination="bvo-mt-QR4" id="XSF-g2-znt"/>
                     </connections>
                 </customObject>

Secretive/Credits.rtf

@@ -0,0 +1,23 @@
+{\rtf1\ansi\ansicpg1252\cocoartf2511
+\cocoatextscaling0\cocoaplatform0{\fonttbl\f0\fswiss\fcharset0 Helvetica;}
+{\colortbl;\red255\green255\blue255;}
+{\*\expandedcolortbl;;}
+\margl1440\margr1440\vieww9000\viewh8400\viewkind0
+\pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6119\tx6480\tx7200\tx7920\tx8640\pardirnatural\partightenfactor0
+{\field{\*\fldinst{HYPERLINK "https://github.com/maxgoedjen/secretive"}}{\fldrslt 
+\f0\fs24 \cf0 GitHub Repository}}
+\f0\fs24 \
+\pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6480\tx7200\tx7920\tx8640\pardirnatural\partightenfactor0
+\cf0 \
+{\field{\*\fldinst{HYPERLINK "GITHUB_BUILD_URL"}}{\fldrslt Build Log}}\
+\
+Special Thanks To:\
+{\field{\*\fldinst{HYPERLINK "https://github.com/bdash"}}{\fldrslt Mark Rowe}}\
+{\field{\*\fldinst{HYPERLINK "https://github.com/danielctull"}}{\fldrslt Daniel Tull}}\
+{\field{\*\fldinst{HYPERLINK "https://github.com/davedelong"}}{\fldrslt Dave DeLong}}\
+{\field{\*\fldinst{HYPERLINK "https://github.com/esttorhe"}}{\fldrslt Esteban Torres}}\
+{\field{\*\fldinst{HYPERLINK "https://github.com/joeblau"}}{\fldrslt Joe Blau}}\
+{\field{\*\fldinst{HYPERLINK "https://github.com/marksands"}}{\fldrslt Mark Sands}}\
+{\field{\*\fldinst{HYPERLINK "https://github.com/mergesort"}}{\fldrslt Joe Fabisevich}}\
+{\field{\*\fldinst{HYPERLINK "https://github.com/phillco"}}{\fldrslt Phil Cohen}}\
+{\field{\*\fldinst{HYPERLINK "https://github.com/zackdotcomputer"}}{\fldrslt Zack Sheppard}}}

Secretive/Info.plist

@@ -19,11 +19,11 @@
 	<key>CFBundleShortVersionString</key>
 	<string>$(CI_VERSION)</string>
 	<key>CFBundleVersion</key>
-	<string>$(CI_VERSION)</string>
+	<string>$(CI_BUILD_NUMBER)</string>
 	<key>LSMinimumSystemVersion</key>
 	<string>$(MACOSX_DEPLOYMENT_TARGET)</string>
 	<key>NSHumanReadableCopyright</key>
-	<string>Copyright © 2020 Max Goedjen. All rights reserved.</string>
+	<string>$(PRODUCT_NAME) is MIT Licensed.</string>
 	<key>NSMainStoryboardFile</key>
 	<string>Main</string>
 	<key>NSPrincipalClass</key>

Secretive/Preview Content/PreviewUpdater.swift

@@ -1,5 +1,6 @@
 import Foundation
 import Combine
+import Brief
 
 class PreviewUpdater: UpdaterProtocol {
 

Secretive/Views/ContentView.swift

@@ -1,5 +1,6 @@
 import SwiftUI
 import SecretKit
+import Brief
 
 struct ContentView<UpdaterType: UpdaterProtocol, AgentStatusCheckerType: AgentStatusCheckerProtocol>: View {
     
@@ -20,6 +21,7 @@ struct ContentView<UpdaterType: UpdaterProtocol, AgentStatusCheckerType: AgentSt
             if !agentStatusChecker.running {
                 agentNotice()
             }
+            if storeList.anyAvailable {
             NavigationView {
                 List(selection: $active) {
                     ForEach(storeList.stores) { store in
@@ -68,7 +70,10 @@ struct ContentView<UpdaterType: UpdaterProtocol, AgentStatusCheckerType: AgentSt
                     }
                 }
             }
-        }
+            } else {
+                NoStoresView()
+            }
+        }.frame(minWidth: 640, minHeight: 320)
     }
 
     func updateNotice() -> some View {

Secretive/Views/NoStoresView.swift

@@ -0,0 +1,29 @@
+//
+//  NoStoresView.swift
+//  Secretive
+//
+//  Created by Max Goedjen on 3/20/20.
+//  Copyright © 2020 Max Goedjen. All rights reserved.
+//
+
+import SwiftUI
+
+struct NoStoresView: View {
+    var body: some View {
+        VStack {
+            Text("No Secure Storage Available").bold()
+            Text("Your Mac doesn't have a Secure Enclave, and there's not a compatible Smart Card inserted.")
+            Button(action: {
+                NSWorkspace.shared.open(URL(string: "https://www.yubico.com/products/compare-yubikey-5-series/")!)
+            }) {
+                Text("If you're looking to add one to your Mac, the YubiKey 5 Series are great.")
+            }
+        }.padding()
+    }
+}
+
+struct NoStoresView_Previews: PreviewProvider {
+    static var previews: some View {
+        NoStoresView()
+    }
+}

Secretive/Views/SetupView.swift

@@ -3,18 +3,18 @@ import SwiftUI
 import ServiceManagement
 
 struct SetupView: View {
-
+    
     var completion: ((Bool) -> Void)?
-
+    
     var body: some View {
         Form {
             SetupStepView<Spacer>(text: "Secretive needs to install a helper app to sign requests when the main app isn't running. This app is called \"SecretAgent\" and you might see it in Activity Manager from time to time.",
-                                index: 1,
+                                  index: 1,
-                                nestedView: nil,
+                                  nestedView: nil,
-                                actionText: "Install") {
+                                  actionText: "Install") {
                                     self.installLaunchAgent()
             }
-            SetupStepView(text: "You need to add a line to your shell config (.bashrc or .zshrc) telling SSH to talk to SecretAgent when it wants to authenticate. Drag this into your config file.",
+            SetupStepView(text: "Add this line to your shell config (.bashrc or .zshrc) telling SSH to talk to SecretAgent when it wants to authenticate. Drag this into your config file.",
                           index: 2,
                           nestedView: SetupStepCommandView(text: Constants.socketPrompt),
                           actionText: "Added") {
@@ -22,25 +22,25 @@ struct SetupView: View {
             }
             HStack {
                 Spacer()
-                    Button(action: { self.completion?(true) }) {
+                Button(action: { self.completion?(true) }) {
-                        Text("Finish")
+                    Text("Finish")
-                    }
+                }
                 .padding()
             }
-        }
+        }.frame(minWidth: 640, minHeight: 400)
     }
-
+    
 }
 
 struct SetupStepView<NestedViewType: View>: View {
-
+    
     let text: String
     let index: Int
     let nestedView: NestedViewType?
     @State var completed = false
     let actionText: String
     let action: (() -> Bool)
-
+    
     var body: some View {
         Section {
             HStack {
@@ -64,10 +64,8 @@ struct SetupStepView<NestedViewType: View>: View {
                     Text(text)
                         .opacity(completed ? 0.5 : 1)
                         .lineLimit(nil)
-                        .frame(idealHeight: 0, maxHeight: .infinity)
                     if nestedView != nil {
-                        Spacer()
+                        nestedView!.padding()
-                        nestedView!
                     }
                 }
                 .padding()
@@ -83,43 +81,58 @@ struct SetupStepView<NestedViewType: View>: View {
 }
 
 struct SetupStepCommandView: View {
-
+    
     let text: String
-
+    
     var body: some View {
-        Text(text)
+        VStack(alignment: .leading) {
-            .font(.system(.caption, design: .monospaced))
+            Text(text)
-            .lineLimit(nil)
+                .lineLimit(nil)
-            .frame(idealHeight: 0, maxHeight: .infinity)
+                .font(.system(.caption, design: .monospaced))
-            .padding()
+                .multilineTextAlignment(.leading)
-            .background(Color(white: 0, opacity: 0.10))
+                .frame(minHeight: 50)
-            .cornerRadius(10)
+            HStack {
-            .onDrag {
+                Spacer()
-                return NSItemProvider(item: NSData(data: self.text.data(using: .utf8)!), typeIdentifier: kUTTypeUTF8PlainText as String)
+                Button(action: copy) {
+                    Text("Copy")
+                }
+            }
+        }
+        .padding()
+        .background(Color(white: 0, opacity: 0.10))
+        .cornerRadius(10)
+        .onDrag {
+            return NSItemProvider(item: NSData(data: self.text.data(using: .utf8)!), typeIdentifier: kUTTypeUTF8PlainText as String)
+            
         }
     }
-
+    
+    func copy() {
+        NSPasteboard.general.declareTypes([.string], owner: nil)
+        NSPasteboard.general.setString(text, forType: .string)
+    }
+    
 }
 
 extension SetupView {
-
+    
     func installLaunchAgent() -> Bool {
         SMLoginItemSetEnabled("com.maxgoedjen.Secretive.SecretAgent" as CFString, true)
     }
-
+    
     func markAsDone() -> Bool {
         return true
     }
-
+    
 }
 
 extension SetupView {
-
+    
     enum Constants {
         static let socketPath = (NSHomeDirectory().replacingOccurrences(of: "com.maxgoedjen.Secretive.Host", with: "com.maxgoedjen.Secretive.SecretAgent") as NSString).appendingPathComponent("socket.ssh") as String
         static let socketPrompt = "export SSH_AUTH_SOCK=\(socketPath)"
     }
-
+    
 }
 
 #if DEBUG

SecretiveTests/SecretiveTests.swift

@@ -1,11 +1,3 @@
-//
-//  SecretiveTests.swift
-//  SecretiveTests
-//
-//  Created by Max Goedjen on 2/18/20.
-//  Copyright © 2020 Max Goedjen. All rights reserved.
-//
-
 import XCTest
 @testable import Secretive
 
@@ -24,11 +16,5 @@ class SecretiveTests: XCTestCase {
         // Use XCTAssert and related functions to verify your tests produce the correct results.
     }
 
-    func testPerformanceExample() {
-        // This is an example of a performance test case.
-        self.measure {
-            // Put the code you want to measure the time of here.
-        }
-    }
 
 }