Secure-Ic Sas

France Brevets

Freddy David

Erwan Nogues

Rachid Dafali

Michel Le Rolland

Christian Cognasse

Mathieu Chacun

Simon Lebreton

Frédéric Garreau

Karine Lorvellec

Yannick Landre

Giuseppe Torres

A System on Chip includes at least two hardware masters, a security circuit, and a communication infrastructure for communication between the hardware masters and the security circuit, the communication infrastructure being based on a given interface communication protocol. Each hardware master is configured to send a request to the security circuit for execution of the request by the security circuit through the communication infrastructure, each request comprising at least one service identifier identifying a service. The security circuit may comprise a Secure Mailbox comprising a filter configured to filter the requests received from the hardware masters, the filter being configured to determine at least one indicator bit, in response to the receipt of a request from a hardware master, using at least a part of an identifier associated with the master, the indicator bit indicating whether the master is allowed access to the Security circuit, the identifier being an hardware identifier received with the request through the communication protocol, the filter filtering the requests based on the bit indicators determined for each request. The security circuit is further configured to execute the filtered requests.

Multi-master security circuit

Growing community of inventors

Thorigne-Fouillard, France

Freddy David