jTOP Architecture

jTOP for Cards (Java™ Trusted Open Platform):
High security to meet the most stringent requirements, in a modular architecture that eases customization and updates.

jTOP features a three-layer architecture, from the Operating System all the way up to the Java™ and GlobalPlatform components:    

 

 

 

 

 

 

 

The jTOP series of platforms all share the same modular design and world class security. Customizability and security are a unifying theme across jTOP platforms and actually form the jTOP brand.

Customizability Dynamic ROMizing (pre-issuance masking capability) This feature allows you to integrate new Java Card™ applications into the ROM code, without having to modify the ROM code executable (no re-linking is necessary). The advantages are as follows: Quick and easy addition of new applications Save on expensive EEPROM when adding new applications Hold on to previously obtained certifications. Multi-purpose cards (cohabitation of operating systems) Thanks to a set of well-defined and previously validated interfaces, the jTOP core has the ability to cohabit with native operating systems. This unique feature allows to build dual or even multi-purpose cards powered with a Java™ engine (Trusted Logic’s jTOP) and a partner Operating System. The VISTA card is the world most outstanding reference in this field (Visa Infineon Sony Trusted Logic Alliance).

     

Security Defensive Virtual Machine Dynamic bytecode verification to protect from hardware attacks aimed at modifying the bytecode after it has been verified. This is a unique Trusted Logic feature. Built-in Integrity & Confidentiality Mechanisms Enhanced memory management routines automatically check for integrity and confidentiality of all sensitive data being handled. Proven Security Robustness jTOP has undergone extensive Java Card™ security tests specifically developed by Trusted Logic to complement standard test suites. Security Auditing Thanks to a centralized Security Manager inside the jTOP Operating System, all platform errors occurring at runtime are automatically reported and logged for further auditing.

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