[Cryptography] 9999 keys for this one iPhone

John Levine johnl at iecc.com
Mon Feb 29 13:59:52 EST 2016


In article <CAAMy4US2S=p=h73ZH5YNaQf4z8QGV9jdVGEfFpBB3Ts_-G8NBg at mail.gmail.com> you write:
>With a four number PIN there are 9999 keys for the
>data on the phone.  All other secrets are constants.
>
>The (AES) key is generated from the PIN (key) entangled with the Unique ID
>
>"Each Secure Enclave ....

The Secure Enclave was introduced on the A7 processor used in the
iPhone 6 series.  The San Bernadino phone is a 5C which uses the
older A6 processor.

In the older processors, it's all software.

R's,
John


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