Security flash memory, data encryption device and method for accessing security flash memory

摘要

The present invention discloses a security flash memory which includes a flash memory chip with a plurality of data transmission terminals, and a data encryption device. The data encryption device includes a verifier module with default pass code, a secret key module and a switching module. The verifier module compares a pass code with the default pass code for outputting a control signal. The secret key module is used for data encryption and data decryption. The switching module is connected to the verifier module, the data transmission terminals of the flash memory chip and the secret key module, and may connect or disconnect the data transmission terminals of the flash chip and the secret key module in response to the control signal.