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Apple released a new document: Touch ID
Apple in "iPhone in Business today" posted on the
website updated security document, introduces the Touch ID and A7 processor
"safety area (Secure Enclave)" in detail. Since 2013, Touch ID was
related to the protection of privacy from users and government officials. After
apple unveiled a "security zone" design details, and says the module
will only store the fingerprint data, rather than the fingerprint image.
According to the new security document, the "security
zone" is a collaborators in the A7 processor processor, through safe,
start the process to ensure that its software is apple's certification and
signature. Even if a processor core is attack, all the "security
zone" will also be able to function independently. And every
"security zone" contains a unique identifier, not from the rest of
the system access, and the company also does not have this information. So it
will avoid apple or any other third party access to the stored data.
Document shows that: "every" security zone "in
the process of manufacturing distribution the UID (identifier), from the rest
of the system access, and apple does not know this information. When the device
starts, according to the UID, a temporary key will be created, and is used to
encrypt the equipment storage space in" security zone "of the parts.
In addition, kept by" security zone "in the system to use this key to
By Touch ID to collect the fingerprint data will be stored in a
"safe zone". This data will be used for information matching,
shopping and other activities to support. Although the A7 processor from Touch
ID sensors data, but can't read these data, because these data using the Touch
ID and "security zone" built-in session key to encryption and
In addition to the function of the "security zone" and
security, this document also introduced Touch ID details. Most of the details
had been released, but emphasized the fingerprint for the security of the new
document, and points out that only a "security zone" can obtain
fingerprint data, in addition to these data will not be sent to apple or stored
in up to cloud storage service.
The end of this document introduces the Touch ID and
"security zone" how to implement the iPhone 5 s cooperation of mobile
phone unlocked. If the user is interested in, then is a good reading material.
Apple released this document is the iPhone in part of the IT channel Business
website redesign, the design of the site has a more relaxed.