公开(公告)号：US20160203086A1

公开(公告)日：2016-07-14

申请号：US14641441

申请日：2015-03-09

Applicant: PHISON ELECTRONICS CORP.

Inventor： Hon-Wai Ng ,  Jen-Wei Lo ,  Chien-Fu Lee ,  Chia-Jung Hsu

IPC: G06F12/14 ,  G06F12/08

CPC classification number: G06F21/6209 ,  G06F21/42

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.

Abstract translation: 本公开提供了数据保护方法，存储器控制电路单元和存储器存储装置。 数据保护方法包括：通过无线通信网络与电子设备建立安全通道; 通过在无线通信网络上建立的安全信道获取识别码; 通过使用所述识别码获取加密/解密密钥并将所述加密/解密密钥存储在缓冲存储器中; 通过使用加密/解密密钥解码从可重写非易失性存储器读取的数据，并且通过使用加密/解密密钥对可重写非易失性存储器中的数据进行编码; 检测是否从通过无线通信网络建立的安全信道接收到确认信号; 以及如果在预定时间段内没有从电子设备接收到确认信号，则擦除存储在缓冲存储器中的加密/解密密钥。