BED-5264: Defend against time-based enumeration #1167
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Description
Add arbitrary hash checking in failure cases prior to actually checking the hash to ensure time consistency.
Motivation and Context
This PR addresses: BED-5264
Why is this change required? What problem does it solve?
Resolves potential security concern.
How Has This Been Tested?
Tested locally showing that user not found errors and user found errors both take between 1.5 and 2 seconds to complete arbitrarily.
Screenshots (optional):
Types of changes
Checklist: