Sentinel Hardware Keys Developer's Guide - Customer Connection ...

Sentinel Keys
Contents Glossary Index Troubleshooting
Details about the Sentinel Keys Models (Continued)
Model Name Description Characteristics
Sentinel XT Stand-alone
Extended Memory
RTC version
Sentinel XNT Network Extended
Memory RTC
version
Form-factor: USB
Total memory: 64KB
Hard-limit: Zero (0); for standalone
users only
Algorithms: AES and ECC
Real Time Clock battery with lifetime
of 4 years
Form-factor: USB
Total memory: 64KB
Hard-limit: 3, 5, 10, 25, 50, 100,
and 250.
Algorithms: AES and ECC
Real Time Clock battery with lifetime
of 4 years
See also, Appendix C, “Sentinel Keys Hardware Specifications,” on page
277.
Note: A Sentinel Key can also be initialized as Custom CodeCover Key for protecting
application at the customer’s site. For information on Custom Code-
Cover Key, see “About Custom CodeCover Key” on page 95.
Sentinel Extended Memory Hardware Key (SHK XM)
SHK XM is a 64K variant of Sentinel keys that can be utilized to create
advanced and robust protection strategies of larger size. With a memory size
as large as 64K, SHK XM provides the following benefits:
Increased Feature Size: The maximum size of data that can be
stored in the Raw Data and String features has been increased from
256 bytes to 2032 bytes.
Enhanced License Size: The size of licenses that can be
programmed into Sentinel Keys of 8K memory is limited to 1792
Sentinel Hardware Keys Developer’s Guide 27