DATA PROTECTION METHOD, MEMORY CONTROL CIRCUIT UNIT AND MEMORY STORAGE DEVICE
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United States of America Patent
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Issued Date -
Jul 14, 2016
app pub date -
Mar 9, 2015
filing date -
Jan 12, 2015
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Abstract
The present disclosure provides a data protection method, a memory control circuit unit and a memory storage device. The data protection method includes: establishing a security channel with a electronic device through a wireless communication network; acquiring an identification code through the security channel established on the wireless communication network; acquiring an encryption/decryption key by using the identification code and storing the encryption/decryption key in a buffer memory; decoding the data read from the rewritable non-volatile memory by using the encryption/decryption key, and the data in the rewritable non-volatile memory is encoded by using the encryption/decryption key; detecting whether an acknowledgement signal is received from the security channel established through the wireless communication network; and erasing the encryption/decryption key stored in the buffer memory if the acknowledgement signal is not received from the electronic device within a predetermined period of time.
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