KC-P30 Charging Station
Using the device
V1.03
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© KEBA
After receiving the bill, the consumer can input the digitally signed measured
values along with the public key into the transparency and display software.
The signature verification enables the consumer to check the accuracy of
the measured values. To do so, the consumer compares the values dis-
played in the transparency and display software with the contents of the bill.
If the result of this comparison is positive, this confirms that the data record
was not changed between its creation and this review.
The transparency and display software checks the following data:
●
Public key, as identifier of the charging station. The public key can also
be read on the type plate of the charging station.
●
Correct measured energy value
●
Correct user/transaction ID
Checking the signed measurement data record
To check the measurement data record, proceed as follows:
1) Download and install a Java Runtime Environment (available for all op-
erating systems, usually already present, e.g. Oracle).
2) Download the transparency and display software from
3) Input the following data into the transparency and display software:
− Signed measurement data record
− Selection of the "OCMF" format
− Public key of the corresponding charging station
4) After entering the necessary data, the check can be started.
5) After this check is complete, it must be checked whether the results of
the signature verification match the information on the bill.
