< p > Apple Corp released the updated < a href= "//m.pmae.cn/news/index_c.asp > security document < /a > on the" iPhone in Business "website today, introducing the details of the" safe area (Touch) "in Touch ID and A7 processor.

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Since P was released in 2013, Touch ID has been challenged by privacy protection from users and government officials.

Apple Corp has announced some details of the design of the "safe area", and said that this module only stores fingerprint data instead of fingerprint images.

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< p > according to the new security document, the "security area" is a coprocessor in the A7 processor, which ensures the authentication and signature of the Apple Corp through the security startup process.

Even if a processor core is attacked, all the "safe areas" can function independently.

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< p > and each < < a href= > //m.pmae.cn/news/index_c.asp > > security zone > /a > contains unique identifiers which can not be accessed from other parts of the system, and Apple Corp also has no such information.

This will prevent the Apple Corp or other third parties from acquiring the data stored therein.

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< p > document shows: "each" safe area "is allocated UID (independent identifier) in manufacturing process, and can not be accessed from other parts of < a href=" //m.pmae.cn/news/index_c.asp "> system < /a >, and Apple Corp does not know this information.

When the device starts, according to UID, a temporary key will be created and used to encrypt the part of the "safe area" in the device storage space.

In addition, data stored in the system from the "security zone" is encrypted using this key.

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< p > fingerprint data collected by Touch ID will be stored in the "safe area".

This data will be used for information matching to support shopping and other activities.

Although the A7 processor obtains data from the Touch ID sensor, it is not possible to read these data, because these data are encrypted and authenticated using Touch ID and built in session keys in the "security zone".

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< p > in addition to the function and security of the "security area", this document also introduces the details of Touch ID.

Most of the details have been announced before, but the new document highlights the security of fingerprint acquisition, and points out that only the "safe area" can get fingerprint data, and these data will not be sent to Apple Corp or stored in iCloud cloud storage service.

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< p > the final document introduces how Touch ID and security zone cooperate to realize iPhone 5S's cell phone unlocking.

If the user is interested in it, it is a good reading material.

The release of Apple Corp's document is part of the redesign of iPhone in Business's IT channel, which now has a more refreshing design.

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