LAContext evaluateAccessControl not supported in simulator?

Question

Created Apr ’18

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When I try calling

evaluateAccessControl

on an LAContext in the iOS simulator I get an LAError with the localizedDescription: "This call is not supported in Simulator" (code -1000).

Is

evaulateAccessControl

simply not supported in the simulator?

For reference I created the

SecAccessControl

which I'm evaluating with

kSecAttrAccessibleWhenPasscodeSetThisDeviceOnly

protection and

[.userPresence, .privateKeyUsage]

flags. I'm passing

.useKeySign

as the operation param for

evaluateAccessControl

.

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Answer 1

jzilske OP

Apr ’18

I ran into the same issue, however in my case I didn't pass

.privateKeyUsage

when creating the ACL and was using

.createItem

when evaluating it.

As it turns out the sample code exhibits the same behaviour if built with Xcode 9.3 and run on an iOS 11.3 Simulator: The "Add item (TouchID and password)" test returns the exact same error you described. The README.md, however, states "This sample does not support the simulator.".

As a matter of fact I still can't quite get my head around what

evaluateAccessControl:operation:localizedReason:reply:

is actually useful for.

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