Patent ID: 8095805
Filing Date: 2012-01-10
Classification: H04L

Abstract:
1. A security flash memory, comprising: a flash memory chip, with plural data transmission terminals; and a data encryption device, connected to the data transmission terminals of the flash memory chip, comprising: a verifier module having a default pass code, for comparing a pass code with the default pass code, wherein when the pass code matches the default pass code the verifier module sends out an enabling control signal; otherwise the verifier module sends out a disabling control signal; a secret key module; and a switching module, connected with the verifier module, the data transmission terminals of the flash memory chip and the secret key module, for receiving the enabling control signal to cause the data transmission terminals of the flash memory chip to be in connection with the secret key module, and receiving the disabling control signal to cause the data transmission terminals of the flash memory chip to be disconnecting from the secret key module; wherein when the flash memory chip is connected with the secret key module, the flash memory chip is accessible allowing for the secret key module to decrypt the data from the flash memory chip and encrypt the data written into the flash memory chip.