Guardant Stealth II

This section provides detailed information on the structure and functions of Guardant Stealth II dongle.

The new Guardant Stealth II dongles employ a most up-to-date elemental base that made it possible to significantly expand their protection potential. Guardant Stealth II is fully compatible with the preceding products of the Guardant family, retaining the functionality of Guardant Stealth dongles.

The difference between new dongles of Guardant family and the preceding Stealth and Net dongles lies primarily in the implementation of a new GSII64 data encoding hardware algorithm.

To protect the device against hardware cracking, the entire content of Guardant Stealth II EEPROM-memory is securely enciphered with a key that is unique for each dongle.

Guardant Stealth II USB is introduced in a new embodiment, that is a single-unit cast high-strength plastic case and a custom designed long-life USB connector.

  • Microcontroller-based dongle architecture;
  • 256 bytes of non-volatile memory is available for storing user data;
  • Hardware-based programmable read/write user data protection;
  • Three passwords are used to control access to the dongle;
  • Hardware obstruction to debuggers;
  • DOS, Win16, Win32 compatibility;
  • TCP/IP and NetBIOS networks support;
  • Sophisticated protection technics based on on-board one-way data conversion algorithms and symmetric data encryption;
  • Special technologies are used for protection of network software;
  • Easy configuration and operation of protection software within the nework;
  • Hardware algorithms used for data conversion ensure maximum level of security:
    • Symmetric encryption and one-way data transform;
    • Up to 18 algorithms in the dongle;
    • Ability for developer to create, modify and delete algorithms.
  • Symmetric GSII64 encryption algorithm:
    • On-board data encryption and decryption;
    • Key length is 128 or 256 bits;
    • Support of basic modes of symmetric block algorithms (ECB, CBC, OFB, CFB).
  • One-way Y=F(X) functions:
    • On-board data transformation;
    • Maximum data block length is 255 bytes.
  • Availability of software that allows to create reliable protection for any DOS and Windows applications;
  • Ability to design protection of any level of complexity;
  • Transparency to any peripheral devices and communication protocols is provided;
  • Powerful protection against debuggers and disassemblers is attained;
  • LPT and USB dongles are available;
  • Dongles are covered by 3-year warranty;
  • Software updates are provided free of charge;

Guardant Stealth II dongles possess an extensive range of hardware capacities that ensure high level of security against cracking and an efficient protection of software of any complexity and cost.

Guardant Stealth II Developer's Kit

In order to start your work with the Guardant Stealth II dongles a Developer's Kit is needed which comprises the following items:

  • One Guardant Stealth II (LPT or USB) dongle;
  • Software on CD;
  • Users Manual;
  • Sealed envelope containing a sheet with access codes to dongles.