Hi,I am trying to figure out how I can set the kSecACLAuthorizationPartitionID when creating a private key that will later be used by the macOS system ("apple:"). This key is to be used for things like Wi-Fi (eapolagent) and so on.I have been experimenting with the below code, the private key is created correctly, ACL is set and it is added to the keychain, however it seems it is overwritten when I add the key to the keychain: // create standard access SecAccessRef access = SecAccessCreateWithOwnerAndACL(0, 0, kSecUseOnlyUID, NULL, &error); // build partitions list NSMutableArray* partitions = [[NSMutableArray alloc] init]; // we want the apple system to be able to sign with this key [partitions addObject:@"apple:"]; NSMutableDictionary *descriptionDict = [[NSMutableDictionary alloc] init]; [descriptionDict setObject:(__bridge id)partitions forKey:(__bridge id)@"Partitions"]; NSData *xmlData = [NSPropertyListSerialization dataFromPropertyList:descriptionDict format:NSPropertyListXMLFormat_v1_0 errorDescription:&error]; SecACLRef newAcl = NULL; status = SecACLCreateWithSimpleContents(access, NULL, (CFStringRef)[self hexStringValue:xmlData], kSecKeychainPromptRequirePassphase, &newAcl); NSArray* authorizations = @[(__bridge id)kSecACLAuthorizationPartitionID]; // update ACL status = SecACLUpdateAuthorizations(newAcl, (__bridge CFArrayRef) authorizations);At this point, if I loop through the access ACLS, all look well.And I proceed to create the key:SecKeyRef privateKey = SecKeyCreateFromData((CFDictionaryRef)attributes, (CFDataRef)encodedKeyData, &error);And then add this to the keychain with the access I created above NSMutableDictionary *attributes = [[NSMutableDictionary alloc] init]; [attributes setObject:(__bridge id)privateKey forKey:(id)kSecValueRef]; [attributes setObject:(id)kSecClassKey forKey:(id)kSecClass]; [attributes setObject:tag forKey:(id)kSecAttrApplicationTag]; [attributes setObject:(__bridge id)access forKey:(__bridge id)kSecAttrAccess ]; err = SecItemAdd((__bridge CFDictionaryRef)attributes, NULL);All this runs without error, however dumping the keychain, I can see the ACL as follows: entry 0: authorizations (1): any don't-require-password description: <NULL> applications: <null> entry 1: authorizations (1): partition_id don't-require-password description: unsigned: applications: <null> entry 2: authorizations (1): change_acl don't-require-password description: <NULL> applications: <null>The "unsigned:" is I assume due to me running the app in debug mode, but it looks like the ACL I set is ignored and the keychain API hardcodes this to the caller partition_id.I have also tried to set the partition_id after adding the key to the keychain, but this requires the password of the User, something we do not want to request for obvious reasons.Is what I am trying even possible? Can you set the partition_id when creating a key?Thanks,S.