Nilesh Kumar

With advancement of technology, applications are moving towards modern way of authentication from a traditional one. More and more biometric based authentication are being used apart from the password based. One of such example would be- Touch ID. Touch ID uses users' fingerprint to authenticate the user to device/ app. How does it work- On a high level, when a user registers to choose to authenticate to his phone using his/ her fingerprints, the fingerprints are gets stored on the device in form of hashes. Next time when user tries authenticate self and submits his/ her fingerprints, the device matches the submitted fingerprint hash with the ones with already stored and takes decision whether to authenticate him/ her or not. Sounds good, but what's the issue- It's a very convenient technology to open the phone with just a mild touch of your fingerprint. No need to remember/ change/ maintain PIN or passwords. It's more secure because it's completely unique,