Patent ID: 9665847
Date: 2017-05-30
CPC Classifications: G06F,G06K,G06Q,H04L

Claim:
1. A method for storage of data for a batch of manufactured items, the method comprising: defining in a processor, using a lower limit identifier and an upper limit identifier, a range of unique item identifiers for the batch, wherein each manufactured item in the batch is allocated a unique item identifier falling within the range; and storing the item identifiers in allocated storage space, wherein if an upper limit identifier is specified for each time interval, an amount of storage specified for all manufactured items during a production time period is calculated as a sum of a first product and a second product, the first product being a product of a production time and a size allocated to each upper limit identifier, and the second product being a product of the production time, a total number of manufactured items, and a percentage of unused identifiers, wherein each identifier is derived by: generating an identification code in the processor; providing a plurality of secret codes; and digitally signing, in the processor, the identification code by means of a secret derived from the plurality of secret codes, wherein the processor provides the plurality of secret codes to a checking centre for authenticating identifiers on the manufactured items.