Apple Touch ID design constraint raises authentication red flags

May 10, 2015


A design constraint of limits its applicability to authorised actions on a device. Here’s what app developers and end users need to know.

‘s Touch ID recognises fingerprints and tells you whether the fingerprint on the sensor has been registered. Every fingerprint authorised on a device is equivalent; this is an important design constraint to remember for anyone designing a security mechanism that depends on Touch ID.

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