| 摘要 |
The object of the invention is to provide a secure detachable utility monitoring device to be appended to a utility metering apparatus for controlling at least one utility usage consumption. This is achieved thanks to a detachable metering monitoring device to be connected with a utility meter for controlling at least one utility consumption metered by said utility meter comprising:
- means to acquire a utility consumption value metered by said utility meter,
- a first memory to store at least a unique identifier ID and a personal key, both pertaining to said device,
- means to generate a cryptogram from information data comprising at least the utility consumption value, said cryptogram being encrypted with said personal key,
- means to generate an information message including at least said cryptogram and the unique identifier ID. |
