Proposal: Personal Data Encryption (maybe SoC?)

Ian Stirling openmoko at
Sun Mar 18 23:03:13 CET 2007

Henryk Plötz wrote:
> Moin,
> Am Sun, 18 Mar 2007 18:40:26 +0100 schrieb danimanns at
>> I would appreciate a fingerprint sensor - there are a lot of Asian 
>> mobile phones / smart phones
>> with a fingerprint sensor...
> Yeah, but a fingerprint sensor adds only convenience and no security
> at all. starbug regularly demonstrates circumventing any fingerprint

It can add some security, especially against most opponents that are not 
going to bother to try to fake the print.
For example, four fingers, scanned either upwards or downwards gives you 
8 'keys'. If you add a 90 degree rotated finger, that gives you 4*4 = 16 
And as the sensors are typically designed as a 256*4 or so camera, you 
can basically do an optical mouse with them, in reverse, using the 
finger as a 'surface', to add gestures in the middle of the prints.

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