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Old 09-16-2013, 10:08 AM   #81
Andrew H.
Grand Master of Flowers
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Quote:
Originally Posted by Sil_liS View Post
Finger in ink and then pushed onto a paper is not a scan, and in your previous post you said:

Maybe authentication looks only for specific markers, but what is stored on the iPhone is an encoded scan of the fingerprint.
No, that's pretty clearly not the case:

Quote:
new iPhone 5S, which comes with a fingerprint scanner, won’t store actual images of users’ fingerprints on the device, a company spokesman confirmed Wednesday, a decision that could ease concerns from privacy hawks.

Rather, Apple’s new Touch ID system only stores “fingerprint data,” which remains encrypted within the iPhone’s processor, a company representative said Wednesday. The phone then uses the digital signature to unlock itself or make purchases in Apple’s iTunes, iBooks or App stores.

In practice, this means that even if someone cracked an iPhone’s encrypted chip, they likely wouldn’t be able to reverse engineer someone’s fingerprint.
http://blogs.wsj.com/digits/2013/09/...nt-like-sweat/
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