Description

The Usage Period is an option of a Product Item. It defines a time period, for example, 30 days, for which this Product Item can be used. The Usage Period is activated when the first encryption is done using this entry. From this moment Usage Period behaves as an Expiration Time.

Usage Period is available for CmContainer Firmware 1.11 and newer.

  • C, C++

Programming of the Usage Period:

For programming CmContainer please use High Level Programming API (HIP) or CmBoxPgm.

Activating the Usage Period:

The Usage Period is activated by calling CmCrypt2(). The Usage Period will not be activated, if CM_CRYPT_ETIGNORE was set.

Reading the Usage Period:

The Usage Period can be read by calling CmGetInfo/CM_GEI_ENTRYDATA which will fill a CMENTRYDATA structure. To detect an Usage Period use CM_GF_USAGEPERIOD. For easier handling the CMENTRYDATA content can be assigned to a CMUSAGEPERIOD structure that contains all necessary information.