The invention discloses an
integrated circuit (IC) card intelligent
gas meter information safety management module, and belongs to IC card intelligent
gas meter management auxiliary devices. The information safety management module comprises a processer, a first
data interface, a second
data interface and a FLASH memorizer, wherein the processer is respectively switched in the first
data interface, the second data interface and the FLASH memorizer, identity
authentication is conducted to a gas selling
management system by the information safety management module through an IC card
information exchange module in the process of conducting data exchanging with the gas selling
management system, and therefore validity of communication between the information safety management and the gas selling
management system is guaranteed. Level-to-level administration to a gas company is achieved by utilizing different secret keys, a manner of 3 data
encryption standard (DES) or
advanced encryption standard (AES) multilevel
encryption is adopted, safety of the secret keys is high, the secret keys can be updated in real time through a program download interface of the information safety management module, and therefore the risks caused by
exposure of the secret keys are avoided. The IC card intelligent
gas meter information safety management module is simple in structure, independence of an energy company in gas meter control is guaranteed, and restriction from the outside world is avoided.