We are in the process of replacing the TripleDES algorithm with AES in our MDM solution. However, after switching the encryption algorithm, we encountered the following error on Apple devices during enrollment: Error: "-26275 error decrypting response payload (mdmclient(SCEP))" Do Apple devices support AES encryption during the enrollment process, or are there any known limitations that prevent its use? Technical Details: During enrollment, when the device attempts to install the Management Profile, it requests the MDM server to retrieve the device certificate from the SCEP URL. We send the certificate by creating Enveloped CMS content, using TripleDES as the algorithm identifier. If we switch the algorithm to AES, we observe the error mentioned above. We are also using TripleDES when preparing the CMS content for the enrollment profile, which works without issues.

Could you please provide guidance on what is required to set up an Apple MDM server from scratch? Specifically, I would like to understand the necessary steps, tools, certifications, and best practices involved in the process. Any resources or documentation you could recommend would also be appreciated.

**Hi Apple Developer Community, Good Morning ** My Personal MacBook Air M1: Mac OS: Sequoia, Version 15.0 Please note, this is my personal MacBook and I am the only one who is using it. I can see System Configuration, Configuration Profiles and Kerberos on my personal MacBook Air M1 System Folder ---> Library ----> Configuration profile, System Configuration folders ?. Attaching herewith the snapshot of the same. Can some throw light on the same. Do I need to remove the configuration profile, system configuration from my personal MacBook Air M1 which is seen in System Folder ---> Library ----> Configuration profile, System Configuration folders ? Also, I cannot edit the user in my name. **Kindly assist me with the same. Thanks and Regards,** Omkar

On October 4, 2024, the enterprise app we are using showed a "(app name) is no longer available" pop-up on certain devices and the app was not available. And if those users delete the app and reinstall it, "I can't install (app name) because I can't verify integrity, I can't install this app" pop up. The profile of the app was renewed in February this year, and membership, certificate, and profile were all not expired. Currently, the problem has been solved by re-deploying the app, Please tell me the cause of the phenomenon and how to take preventive measures.

I got sent an activation code through one of these apple emails and it can’t access the code because I don’t know where to go. Please help if you can!

macOS devices- dep enrolled device - configured an email policy and it gets stuck on pending status. The rest of the policies and actions like lock device and scan device are executed successfully. While enrollment using DEP, if there is account creation config present in Dep configuration profile , At the time of enrollment we don't receive the user token and user channel is not present. The keys UserID and EnrollmentUserID in TokenUpdate is not present. As a result we can't successfully push the email policy. Is the inference correct or is there anything else we are missing out.

I'm trying to set up a configuration profile on a supervised device for a kid's phone. I want to force a VPN 100% of the time except for local network activity and some specific domains. Or at the very least, have a few apps go outside the tunnel. Apple makes this IMPOSSIBLE even though according to the documentation it should be possible. The IKEv2 vpntype has a key "OnDemandUserOverrideDisabled" which is supposed to prevent a user from toggling off the vpn, which obviously defeats the purpose of having it. However, as other users have posted, this DOES NOT WORK. So anyone can just turn off the vpn and be connected to the internet unprotected. On the "AlwaysOn" vpntype, the element "ApplicationExceptions" which would allow you to list a few applications that can go outside the tunnel DOES NOT WORK. This is critical because so many domains automatically block vpn servers and it's a huge pain. Also local network activity also gets blocked, which makes it impossible to connect to local devices. And there's no split tunneling possible with this vpntype. So basically, it's impossible. I WOULDN'T BE SURPRISED IF APPLE DID THIS INTENTIONALLY TO KEEP KIDS ADDICTED AND IN DANGER SO THEY USE THE PHONE MORE.

When a DeviceInformation command along with ManagedAttestion data in the query along with a new nonce and after 7 days last time we queried for fresh certificate, is there a possibility that a) we will get a DeviceInformation response without a Managed attestion certificte. OR b) We will get a cached certificate Also, what's the average increase in expected response time when we query Managed attestation certificate in DeviceInformation.

Here https://github.com/apple/device-management/blobelease/mdm/commands/information.device.yaml#L3246 it is mentioned that for querying Managed attestation certificate the ios device needs to have A11 Bionic and later, Wanted to understand how to get this information programmatically i.e is Apple sending chip information for iphone and ipad devices as part of some sample ? or is there a way to query this information from the device ? Here https://github.com/apple/device-management/blobelease/mdm/commands/information.device.yaml#L3246 it is mentioned that for querying Managed attestation certificate the macos device needs to have Apple Silicon, using IsAppleSilicon https://github.com/apple/device-management/blobelease/mdm/commands/information.device.yaml#L357 property is fine ? Can we use this field to determine if the device is Apple silicon ? Same question for Apple TV as well - How to get the information if a device is having A12 Bionic and later ? and same for Apple watch, how to know if a device is S4 and later ?