Device-based PIN authentication process to protect encrypted data
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United States of America Patent
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May 2, 2017
Issued Date -
N/A
app pub date -
Dec 23, 2013
filing date -
Dec 23, 2013
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Abstract
Techniques are disclosed for providing a device-based PIN authentication process used to protect encrypted data stored on a computing system, such as a tablet or mobile device. A client component and a server component each store distinct cryptographic keys needed to access encrypted data on the client. The mobile device stores a vault encryption key used to decrypt encrypted sensitive data stored on the mobile device. The vault key is encrypted using a first encryption key and stored on the mobile device. The first encryption key is itself encrypted using a second encryption key. The second encryption key is derived from the PIN value.
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