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The short answer to software security needs


  • First dongle on the market with AES/Rijndael algorithm integrated in the chip - the encryption key never leaves the hardware.

  • The extremely short and robust metal case shields electronic circuitry perfectly.

  • Supports the SmarxOS Application Framework, the all-in-one security solution which protects software, data and provides flexible end user management, including remote updates.

  • Remote programmable with the Remote Update Management System (RUMS).

  • Supports operating systems Windows 32/64, Mac OS, Linux 32/64. No drivers needed for Linux and Mac OS.

  • Automatic protection for Windows .EXE or .DLL files, or implementation into the source code with API. Libraries and samples for all common compilers such as .NET, Delphi, Java, and Qt are included.

  • 4kB memory for licensing information.

  • Also available in different colors and customized product labeling.

Related Documents:

AutoCrypt AutoCrypt

Automatic Software Protection

Smarx OS CBIOS API Reference Smarx OS CBIOS API Reference

Basic API to access to the CRYPTO-BOX

Smarx OS Compendium 2019 Smarx OS Compendium 2019

Manual for the CRYPTO-BOX System

RFP API Reference RFP API Reference

Extended API for updating the CRYPTO-BOX

CRYPTO-BOX Revision 2: Technical Data CRYPTO-BOX Revision 2: Technical Data


All Documents

This might also interest you:


Software security with smartcard technology

AutoCrypt AutoCrypt

Automatic software protection in just a few steps

Smarx OS API Smarx OS API

Implementation of the CRYPTO-BOX into the source code

Professional Protection Kit Professional Protection Kit

Developer kit for protection and licensing

All Products All Solutions

More information about CRYPTO-BOX® Versa

Logos and Certificates

Windows certifiedMac certifiedLinux certifiedMicrosoft certifiedISO 9001:2015 certified
CE sign USB certified FC Sign RoHS Please recycle


Comparison Table of the CRYPTO-BOX Variants





Controller chip RISC-smartcard processor with USB interface
Controller chip certification EAL4+, WHQL (Microsoft)
Firmware proprietary MARX
Supported operating systems Windows, Linux, macOS, iOS*, Android*
(*network mode)
AES/Rijndael On-Chip
Maximal AES Key Slots 8 (more on request) 3 3
(6 keys - in hardware)

(1 key - driver)
Network support
(floating license)

(floating license)

(without license management)
Unique serial number  -
(same serial number for each unit per order)
Memory size (total) 72 kByte, ca. 30 kByte free 4, 32, 64 kByte 4 kByte
Internal memory read/write performance ca. 80 kByte/second ca. 12 kByte/second
User-/administrator password up to 16 kByte in length
Case & LED designer metal case, zinc cast,
LED showing the operating state, eye for key ring;
custom case possible 
Connector USB Type A / USB-C Type
Memory programming typically up to 1 million cycles: 100,000 guaranteed
Data life cycle  minimum 10 years
Conformity and certifications CE, FCC, RoHS, USB

14 x7 x 32,5 mm / 0.55" x 0.28" x 1.28" (USB Type A)

11 x 4 x 22,5 mm / 0.43" x 0.16" x 0.89" (USB-C Type)


7,5g / 0.24oz (USB Type A)

3g / 0.11oz (USB-C Type)

Temperature range -10°C to + 70°C / 14°F to 158°F
Humidity range 0% up to 95% relative humidity

Copyright © 2002, 2019 MARX® CryptoTech LP - Last Update 12 September 2019