Ip network encryption

Enhance the security of your sensitive networks

Trustway chronos network encryption

Network encryption for sensitive data exchange

High Level Security

Trustway chronos uses IPSec and provides security services for sensitive data exchange: encryption of data flows, embedded flows, anti-replay management and event logging.

Regulations Compliant

Trustway chronos network encryption solution meet the new requirements of the new regulations such as the French Military Programming Law (LPM) regarding the duty of Critical National Infrastructure (CNI) to take appropriate cybersecurity measures on critical information systems.

Cyberattacks are increasingly aggressive and targeted: no one is safe. Technology is evolving rapidly and with it the ‘cyber weapons’ at the disposal of hackers. The security of sensitive data exchange and communications are essential to maintaining National Security. This is particularly true of the Critical National Infrastructure (CNI) and those organizations and agencies that depend upon it.

To fight today’s cyber threats and to be compliant with regulations, Bull developed Trustway chronos network encryption (with support of the Ministry of Defense and the National Cybersecurity Agency of France (ANSSI)). It has the highest encryption level“Confidential Defense”–and is used to protect the most critical parts of the National communications infrastructure.

Trustway chronos is used by the Critical National Infrastructure Provider (CNI) and Defense Industry and meets the requirements of the French Military Programming Law (LPM in French).

Trustway chronos is available in 3 interoperable encryption platforms ranging from 250 Mbits/s to 10 Gbits/s.  It includes a complete Management Infrastructure which offers centralized device customization, policy definition and distribution, and events management:

► « Chronos » encryptor: Chronos encryptor can have a debit going up to 2*250 Mbits/s. Its design can be put as well on a bay as on a table.

► « Hi Chronos » encryptor: Hi chronos encryptor can have a debit going up to 2*900 Mbits/s. It is especially designed to protect sites requiring important debits.

► « X Chronos » encryptor: X chronos encryptor performs by its level of debit which can achieve 2*8 Gbits/s. It is perfectly compatible with the set of equipments from the CHRONOS range.

Management infrastructure

► Technical Secret Generation (TSG) Offline workstation ensures the generation of initial secret elements, equipments of encryption and their packaging on amovible supports.

► Technical Domain Manager (TDM) Online workstation guarantees a secure distribution of the safety policy defined by the Information Systems Security Officer.

► Technical Event Manager (TEM) Online workstation manages events issued by the equipments of encryption.

TDM and TSG are associated each of them to a “dedicated Cryptographic Resource”


Ethernet BaseT 2 x 10/100/1000
300 simultaneous VPN

Fail-safe erasure systems

Fail-safe desensitization mecanism of the encryptor

Radiation protection

► “SDIP 27 Level B” compliant


Certified to the level “Confidential Defense” and equivalents – “Confidential NATO”, “Confidential EU” and “Confidential EUROCOR”.
Certified to the level of “Restricted Circulation” and equivalents – “Restricted Circulation NATO”, “Restricted Circulation EU” and “Restricted Circulation EUROCOR”.
Any acquisition of a TrustWay chronos requires a preliminary agreement from the ANSSI (the National Cybersecurity Agency of France).


The encryption modules handle datagrams of the unicast IPv4 protocol

Related resources and actuality

Bull cyber security TrustWay chronos network encryption flow compliant

Factsheet Trustway chronos – FR

Securing flows and network protection

Bull has developed a high security solution to protect communications and snesitive data exchange on the network. Trustway chronos is a Ip network encryption solution dedicated to French “Opérateurs d’Importance Vitale” (OIV) and industrial weapons.


The « Assises de la Sécurité »

October 11-14th 2017, Monaco
Meet us on the Atos-Bull booth n°11

Private zone for customers and partners

Bull support consists of an international team of experts who will help you get optimal use out of our products in your specific environment every day.


Other Ip network encryption products

TrustWay VPN

The TrustWay VPN (IPSec) offers the most advanced security capabilities to protect sensitive communications for civil and defense environments.
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Interested in our Trustway chronos network encryption?