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Sentinel HL Max

License a large number of components or provide a metered licensing model

  • Overview
  • Tech Specs
  • Features & Benefits
  • Sentinel LDK Protection Types

Sentinel HL Max

Sentinel HL Max

Sentinel HL Max is the ideal solution for protecting a large number of applications or features. The Sentinel HL Max key contains a unique 32-bit ID that allows protecting each copy of your unique application while fully controlling the secure software update mechanism.

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Sentinel HL Max technical specifications:


Unique 32-Bit YES
Secure Communication Channel YES
AES 128-Bit Encryption YES
Remote Update - RSA Digital Signature YES
64,000 Encryption Keys YES


Protected Read / Write Memory 4KB
Read Only Memory (ROM) 2KB
Backwards Compatibility Memory 4KB
Additional memory (coming up in Driverless configuration) 26KB
Data Retention At Least 10 Years
Write Cycles (EEPROM) At Least 1,000,000
Max. licensable modules (Features) per key - HASP Configuration 57-231 (depending on license complexity)
Max. licensable modules (Features) per key - Driverless Configuration 240-2160 (depending on license complexity)

Physical Specifications

Default Color Green
Form Factor Mini
Operating Temperature -25˚C to 85˚C
-13˚F to 185˚F
Humidity Rating 0-95%
Power consumption - operating / standby 50mA / <0.5mA
Dimensions L x W x H (in mm) 40.5 X 16 X 8
Weight (in grams) 5.63


For more information on each of the Sentinel HL form factors including features, sizing, and technical specifications please visit the newly created Sentinel HL portion of the Sentinel Customer Community today!

For detailed technical information on the various Sentinel HL keys, read our data sheet.

Benefits at a glance:

  • Backwards compatibility – 100% compatible with your existing Sentinel HASP HL, Hardlock and Sentinel SuperPro hardware. 
  • Increased Security – All Sentinel HL hardware-based protection keys employ a highly secure SmartCard chip providing the utmost security against malicious hardware attacks such Differential Power Analysis (DPA) and electron microscopy.
  • Highly Customizable – Provides more real estate for the purpose of a personalized logo or text.
  • Future proof – add future functionality and enhancements to in-the-field deployed keys using our unique UpdateOnChip™ mechanism.


Technical Features:

  • Industry pioneering  White-box cryptography
  • High performance SmartCard chip allowing faster software execution and improved operational efficiency
  • Standard public cryptography algorithms AES 128,ECC 163, RSA 2048
  • Over 64,000 AES encryption keys
  • Protect over 2000 features or applications
  • Mini Form Factor: 40.5 x16 x 8mm
  • Sentinel V-Clock for secure time-based licensing
  • Concurrent licensing support (requires ISV to purchase a pre-paid pool of network seats)
  • 31KB Protected memory
  • Available Configurations: Sentinel HASP HL, Sentinel SuperPro, Hardlock and Driverless
  • AppOnChip compatible for 32-bit and 64-bit Windows binaries 
  • Concurrent licensing support (requires ISV to purchase a pre-paid pool of network seats)
  • Firmware upgradable in the field