Hello! We have code that extracts macOS Installer package (.pkg, .mpkg) signature information using APIs defined in <xar/xar.h> The code opens the package using ‘xar_open’ API like this. func open(file: String) throws(XarError) { xarfile = xar_open(file, READ) if xarfile == nil { throw .fileOpenError } } This code produces a clang warning in our CI build system when built for macOS 12 and up. 'xar_open' was deprecated in macOS 12.0: xar is a deprecated file format and should not be used. Question #1: What is the appropriate / more preferred way to extract signature information from an Installer package given that xar related APIs are deprecated? We use xar APIs to validate the package signature prior to installation to prevent packagers not signed by our team ID from being installed. Question #2: “xar is a deprecated file format and should not be used.”. Does this phrase refer to the file format that should be avoided or the API that extract signature information? We distribute our product using Developer ID method that using pkg/mpkg formats which I believe internally follow the same structure as xar files. I hope this message does not mean we should rethink the distribution method for our products. Thank you. Filed FB FB17148233 as well.

I want iOS device identifier for a framework that is used in multiple vendor's apps. I'm developing a framework to control a peripheral. The framework has to send unique information to register the device with the peripheral. My naive idea was to use IdentifierForVendor. But this API provides the device identifier for the same vendor's apps, not the framework. (The framework will be used by multiple vendors.) Is there a usable device identifier for the framework, regardless of app vendor? Please tell me any solution.

I am not very well versed in this area, so I would appreciate some guidance on what should be enabled or disabled. My app is an AppKit app. I have read the documentation and watched the video, but I find it hard to understand. When I added the Enhanced Security capability in Xcode, the following options were enabled automatically: Memory Safety Enable Enhanced Security Typed Allocator Runtime Protections Enable Additional Runtime Platform Restrictions Authenticate Pointers Enable Read-only Platform Memory The following options were disabled by default: Memory Safety Enable Hardware Memory Tagging Memory Tag Pure Data Prevent Receiving Tagged Memory Enable Soft Mode for Memory Tagging Should I enable these options? Is there anything I should consider disabling?

Hi everyone, I have a macOS application that uses Screen Recording permission. I build my app with an adhoc signature (not with a Developer ID certificate). For example, in version 1.0.0, I grant Screen Recording permission to the app. Later, I build a new version (1.1.0) and update by dragging the new app into the Applications folder to overwrite the previous one. However, when I launch the updated app, it asks for Screen Recording permission again, even though I have already granted it for the previous version. I don’t fully understand how TCC (Transparency, Consent, and Control) determines when permissions need to be re-granted. Can anyone explain how TCC manages permissions for updated builds, especially with adhoc signatures? Is there any way to retain permissions between updates, or any best practices to avoid having users re-authorize permissions after every update?

Hi, Our App relies on a keychain to store certificates and key-value pairs. However, when we upgraded from an older XCode 15.2 (1 year old) app version to a newer version XCode 16.2 (with identical keychain-groups entitlement), we found that the newer ipa cannot see the older keychain group anymore... We tried Testflight builds, but limited to only generating newer versions, we tried using the older App's code, cast as a newer App version, and then upgraded to the newer code (with an even newer app version!). Surprisingly we were able to see the older keychain group. So it seems that there's something different between the packaging/profile of the older (1 year) and newer (current) App versions that seems to cause the new version to not see the old keychainGroup... Any ideas?

Our desktop app for macos will be released in 2 channels appstore dmg package on our official website for users to download and install Now when we debug with passkey, we find that the package name of the appstore can normally arouse passkey, but the package name of the non-App Store can not arouse the passkey interface I need your help. Thank you

When we enable 3rd party authentication plugin using SFAuthorization window, then when user performs Lock Screen and then unlock the MAC. Now after unlock, if user tries to open Keychain Access, it is not getting opened. When trying to open Keychain Access, we are prompted for credentials but after providing the credentials Keychians are not getting opened. This is working on Sonoma 14.6.1 , but seeing this issue from macOS Sequoia onwards. Are there any suggested settings/actions to resolve this issue?

Hi... It would be nice if Apple / XCode would be so gracious to explore the possibility of providing the ability to include: Code scrambling / renaming Control-flow obfuscation String encryption Anti-debugging Anti-hooking Jailbreak detection App integrity checks Runtime tamper detection That way, we could eliminate the need to settle for third-party software. Who do we have to bribe to submit such a request and entertain such an idea?

Hello, I am currently working on iOS application development using Swift, targeting iOS 17 and above, and need to implement mTLS for network connections. In the registration API flow, the app generates a private key and CSR on the device, sends the CSR to the server (via the registration API), and receives back the signed client certificate (CRT) along with the intermediate/CA certificate. These certificates are then imported on the device. The challenge I am facing is pairing the received CRT with the previously generated private key in order to create a SecIdentity. Could you please suggest the correct approach to generate a SecIdentity in this scenario? If there are any sample code snippets, WWDC videos, or documentation references available, I would greatly appreciate it if you could share them. Thank you for your guidance.

Hi, I have a certificate, how can I display the certificate content in my Mac app just like Keychain Access app does. Can I popup the certificate content dialog just like Keychain Access app?

I'm using Secure Enclave to generate and use a private key like this: let access = SecAccessControlCreateWithFlags(nil, kSecAttrAccessibleWhenUnlockedThisDeviceOnly, [.privateKeyUsage, .biometryAny], nil) let attributes: [String: Any] = [ kSecAttrKeyType as String: kSecAttrKeyTypeECSECPrimeRandom, kSecAttrKeySizeInBits as String: 256, kSecAttrTokenID as String: kSecAttrTokenIDSecureEnclave, kSecAttrAccessControl as String: access as Any, kSecAttrApplicationTag as String: "com.example.key".data(using: .utf8)!, kSecReturnRef as String: true ] let privateKey = SecKeyCreateRandomKey(attributes as CFDictionary, nil) Later, I use this key to sign a message: let signature = SecKeyCreateSignature(privateKey, .ecdsaSignatureMessageX962SHA256, dataToSign as CFData, nil) This prompts for biometric authentication, but shows the default system text. How can I customize or localize the biometric prompt (e.g., title, description, button text) shown during SecKeyCreateSignature? Thanks!

Hi everyone, I’m encountering an unexpected Keychain behavior in a production environment and would like to confirm whether this is expected or if I’m missing something. In my app, I store a deviceId in the Keychain based on the classic KeychainItemWrapper implementation. I extended it by explicitly setting: kSecAttrAccessible = kSecAttrAccessibleAfterFirstUnlock My understanding is that kSecAttrAccessibleAfterFirstUnlock should allow Keychain access while the app is running in the background, as long as the device has been unlocked at least once after reboot. However, after the app went live, I observed that when the app performs background execution (e.g., triggered by background tasks / silent push), Keychain read attempts intermittently fail with: errSecInteractionNotAllowed (-25308) This seems inconsistent with the documented behavior of kSecAttrAccessibleAfterFirstUnlock. Additional context: The issue never occurs in foreground. The issue does not appear on development devices. User devices are not freshly rebooted when this happens. The Keychain item is created successfully; only background reads fail. Setting the accessibility to kSecAttrAccessibleAfterFirstUnlockThisDeviceOnly produces the same result. Questions: Under what circumstances can kSecAttrAccessibleAfterFirstUnlock still cause a -25308 error? Is there any known restriction when accessing Keychain while the app is running in background execution contexts? Could certain system states (Low Power Mode, Background App Refresh conditions, device lock state, etc.) cause Keychain reads to be blocked unexpectedly? Any insights or similar experiences would be greatly appreciated. Thank you!

Using the SDK, I've printed out some log messages when I enter the wrong password: 2025-08-20 15:58:14.086 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] invoke 2025-08-20 15:58:14.086 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] general: 2025-08-20 15:58:14.086 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] progname: 'SecurityAgentHelper-arm64' 2025-08-20 15:58:14.086 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] OS version: 'Version 15.5 (Build 24F74)' 2025-08-20 15:58:14.086 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] pid: '818' 2025-08-20 15:58:14.086 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] ppid: '1' 2025-08-20 15:58:14.086 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] euid: '92' 2025-08-20 15:58:14.086 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] uid: '92' 2025-08-20 15:58:14.087 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] session: 0x186e9 2025-08-20 15:58:14.087 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] attributes: 2025-08-20 15:58:14.087 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] is root: f 2025-08-20 15:58:14.087 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] has graphics: t 2025-08-20 15:58:14.087 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] has TTY: t 2025-08-20 15:58:14.087 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] is remote: f 2025-08-20 15:58:14.087 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] auth session: 0x0 2025-08-20 15:58:14.087 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] context: 2025-08-20 15:58:14.088 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] authentication-failure: --S -14090 2025-08-20 15:58:14.088 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] pam_result: X-S 9 2025-08-20 15:58:14.089 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] hints: 2025-08-20 15:58:14.089 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] authorize-right: "system.login.console" 2025-08-20 15:58:14.090 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] client-path: "/System/Library/CoreServices/loginwindow.app" 2025-08-20 15:58:14.090 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] client-pid: 807 2025-08-20 15:58:14.090 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] client-type: 'LDNB' 2025-08-20 15:58:14.090 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] client-uid: 0 2025-08-20 15:58:14.090 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] creator-audit-token: 2025-08-20 15:58:14.090 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] ff ff ff ff 00 00 00 00 00 00 00 00 00 00 00 00 ................ 2025-08-20 15:58:14.090 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] 00 00 00 00 27 03 00 00 e9 86 01 00 68 08 00 00 ....'.......h... 2025-08-20 15:58:14.090 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] creator-pid: 807 2025-08-20 15:58:14.090 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] flags: 259 2025-08-20 15:58:14.090 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] reason: 0 2025-08-20 15:58:14.090 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] tries: 1 2025-08-20 15:58:14.090 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] immutable hints: 2025-08-20 15:58:14.090 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] client-apple-signed: true 2025-08-20 15:58:14.090 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] client-firstparty-signed: true 2025-08-20 15:58:14.090 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] creator-apple-signed: true 2025-08-20 15:58:14.090 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] creator-firstparty-signed: true 2025-08-20 15:58:14.091 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] arguments: 2025-08-20 15:58:14.091 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] none 2025-08-20 15:58:14.108 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] LAContext: LAContext[4:8:112] 2025-08-20 15:58:14.119 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] token identities: 0 2025-08-20 15:58:14.120 Db SecurityAgentHelper-arm64[818:1efd] [com.example.apple-samplecode.LoggingAuthPlugin:mechanism] token watcher: <TKTokenWatcher: 0x11410ee70> Specifically, is there a manual/link somewhere that can allow me to interpret: authentication-failure: --S -14090 and pam_result: X-S 9

Hi , I did The MFA(2FA) of Email OTP For MacOS Login Screen using, Authorization Plugin, Using This git hub project. It is working For Login Screen , Im trying to Add The Same plugin for LockScreen but it is not working at lock Screen , Below is the reffrense theard For The issue , https://aninterestingwebsite.com/forums/thread/127614, please Share The Code that should Present the NSwindow at Screen Saver (Lock Screen) MacOS .

Testing my security agent plugin on Tahoe and find that when unlocking the screen, I now get an extra window that pops up over the SFAuthorizationPluginView that says "macOS You must enter a password to unlock the screen" with a Cancel (enabled) and OK button (disabled). See the attached photo. This is new with Tahoe. When unlocking the screen, I see the standard username and password entry view and I enter my password and click OK. That is when this new view appears. I can only click cancel so there is no way to complete authenticating.

Hello, I have a password manager app and would like to help my user's to enable the Safari autofill capability. I've made the password credential extension and that is working great. I just need to help my user's enable the feature. I could point them to Settings-&gt;General-&gt;AutoFill &amp; Password and instruct them to turn the feature on. However, I've noticed that my competitors are able to present an alert directly from their app to turn the feature on (without going to settings at all). I can't find any documentation on how to do this? Thanks for your help! //Ray

Hello everyone, I've noticed some unusual behavior while debugging my application on the iOS 26 beta. My standard testing process relies on the App Tracking Transparency (ATT) authorization status being reset whenever I uninstall and reinstall my app. This is crucial for me to test the permission flow. However, on the current beta, I've observed the following: 1 I installed my app on a device running the iOS 26 beta for the first time. The ATTrackingManager.requestTrackingAuthorization dialog appeared as expected. 2 I completely uninstalled the application. 3 I then reinstalled the app. Unexpected Result: The tracking permission dialog did not appear. And more importantly, the device's advertisingIdentifier appears to have remained unchanged. This is highly unusual, as the IDFA is expected to be reset with a fresh app installation. My question: Is this an intentional change, and is there a fundamental shift in how the operating system handles the persistence of the IDFA or the authorization status? Or could this be a bug in the iOS 26 beta? Any information or confirmation on this behavior would be greatly appreciated.

In some crashlog files, there are additional pieces of information related to codesigning. I can understand what most of themcorresponds to (ID, TeamID, Flags, Validation Category). But there is one I have some doubt about: Trust Level. As far as I can tell (or at least what Google and other search engines say), this is an unsigned 32 bit integer that defines the trust level with -1 being untrusted, 0, being basically an Apple executable and other potential bigger values corresponding to App Store binaries, Developer ID signature, etc. Yet, I'm not able to find a corresponding detailed documentation about this on Apple's developer website. I also had a look at the LightweightCodeRequirements "include" file and there does not seem to be such a field available. [Q] Is there any official documentation listing the different values for this trust level value and providing a clear description of what it corresponds to?

Hello, I would like to seek clarification regarding the availability of the NFC Secure Element (SE) / ISO7816 entitlement by region, specifically for Indonesia. I recently contacted Apple Developer Support regarding the use of NFC for reading ISO7816-compatible cards. I was informed that, at this time, the NFC & Secure Element entitlement is not available in Indonesia. For technical planning and compliance purposes, I would like to confirm the following: Is the NFC Secure Element / ISO7816 entitlement currently restricted by region, and is Indonesia officially unsupported at this time? For apps distributed on the App Store in Indonesia, is Core NFC limited to NDEF and non–Secure Element tag reading only? Are there any publicly supported alternatives or recommended architectural approaches for NFC-based workflows in regions where the Secure Element entitlement is unavailable? Is there any public documentation or guidance that outlines regional availability for NFC Secure Element features? I understand that entitlement approvals and availability may vary by region and are handled on a case-by-case basis. Any clarification from Apple engineers or developers with experience in this area would be greatly appreciated. Thank you for your time and assistance. Best regards.

We are facing an issue with Keychain sharing across our apps after our Team ID was updated. Below are the steps we have already tried and the current observations: Steps we have performed so far: After our Team ID changed, we opened and re-saved all the provisioning profiles. We created a Keychain Access Group: xxxx.net.soti.mobicontrol (net.soti.mobicontrol is one bundle id of one of the app) and added it to the entitlements of all related apps. We are saving and reading certificates using this access group only. Below is a sample code snippet we are using for the query: [genericPasswordQuery setObject:(id)kSecClassGenericPassword forKey:(id)kSecClass]; [genericPasswordQuery setObject:identifier forKey:(id)kSecAttrGeneric]; [genericPasswordQuery setObject:accessGroup forKey:(id)kSecAttrAccessGroup]; [genericPasswordQuery setObject:(id)kSecMatchLimitOne forKey:(id)kSecMatchLimit]; [genericPasswordQuery setObject:(id)kCFBooleanTrue forKey:(id)kSecReturnAttributes]; Issues we are facing: Keychain items are not being shared consistently across apps. We receive different errors at different times: Sometimes errSecDuplicateItem (-25299), even when there is no item in the Keychain. Sometimes it works in a debug build but fails in Ad Hoc / TestFlight builds. The behavior is inconsistent and unpredictable. Expectation / Clarification Needed from Apple: Are we missing any additional configuration steps after the Team ID update? Is there a known issue with Keychain Access Groups not working correctly in certain build types (Debug vs AdHoc/TestFlight)? Guidance on why we are intermittently getting -25299 and how to properly reset/re-add items in the Keychain. Any additional entitlement / provisioning profile configuration that we should double-check. Request you to please raise a support ticket with Apple Developer Technical Support including the above details, so that we can get guidance on the correct setup and resolve this issue.