Can someone tell me the applications requirements for using the secure enclave on MacOS? Does the application need to be signed with the secure-enclave entitlement in order to use it? Since this is a restricted entitlement, does my App ID need approval to use it from Apple? Currently I'm building in XCode 16 on Sequoia (15.5) using developer signing. My application is a C/C++ daemon running as plist out of /Library/LaunchDaemons. I have also built it as an application using the instructions here but this has not lead to a solution: https://developer.apple.com/documentation/xcode/signing-a-daemon-with-a-restricted-entitlement/ When I run my application from the command line via sudo signed but without the secure-enclave entitlement enabled in my entitlements file it runs. The first call to: SecAccessControlRef access = SecAccessControlCreateWithFlags( kCFAllocatorDefault, kSecAttrAccessibleWhenUnlockedThisDeviceOnly, kSecAccessControlPrivateKeyUsage, &error); succeeds without error. The call to create the key using: SecKeyRef privateKey = SecKeyCreateRandomKey(attributes, &error); then fails with error: (OSStatus error -50 - Failed to generate keypair) Here are the setup attributes (keySize = 256): CFDictionarySetValue(attributes, kSecAttrKeyType, kSecAttrKeyTypeECSECPrimeRandom); CFDictionarySetValue(attributes, kSecAttrKeySizeInBits, keySize); CFDictionarySetValue(attributes, kSecAttrLabel, keyName); CFDictionarySetValue(attributes, kSecAttrApplicationTag, keyLabel); CFDictionarySetValue(attributes, kSecAttrTokenID, kSecAttrTokenIDSecureEnclave); // Store in the Secure Enclave CFDictionarySetValue(attributes, kSecAttrKeyClass, kSecAttrKeyClassPrivate); CFDictionarySetValue(attributes, kSecAttrAccessControl, access); CFDictionarySetValue(attributes, kSecAttrIsPermanent, kCFBooleanTrue); // persist key across app restarts and reboots CFDictionarySetValue(attributes, kSecAttrCanEncrypt, kCFBooleanTrue); CFDictionarySetValue(attributes, kSecAttrCanDecrypt, kCFBooleanTrue); CFDictionarySetValue(attributes, kSecAttrAccessible, kSecAttrAccessibleWhenUnlockedThisDeviceOnly); CFDictionarySetValue(attributes, kSecReturnPersistentRef, kCFBooleanTrue); When I run the application signed and include the "com.apple.developer.secure-enclave" in my entitlements file it crashes at startup. I believe this is to be expected based on above. How do I proceed such that my application can use the secure enclave correctly?