Maxim Integrated Products, Inc.

Yann Yves René Loisel

Christophe Tremlet

Vincent Debout

Frank Lhermet

Grégory Rome

Renaud Guigue

Yann Gaude

The present invention relates to key management in a secure microcontroller, and more particularly, to systems, devices and methods of automatically and transparently employing logic or physical address based keys that may also be transferred using dedicated buses. A cryptographic engine translates a logic address to at least one physical address, and processes a corresponding data word based on at least one target key. The target key is selected from a plurality of keys based on the logic or physical address. A universal memory controller stores each processed data word in the corresponding physical address within a memory. Each key is associated with a memory region within the memory, and therefore, the logic or physical address associated with a memory region may be used to automatically identify the corresponding target key. A dedicated secure link may be used to transport key request commands and the plurality of keys.

Systems and methods for managing cryptographic keys in a secure microcontroller

The invention relates to the creation of a housing for an integrated circuit which makes it possible to detect physical ingression into said housing. The invention applies in particular to the protection of secrets which may possibly be contained in said integrated circuit, in the event of physical attack, for example by destroying the secrets contained in an integrated circuit in the event of ingression into the housing thereof.

Device for protecting an electronic integrated circuit housing against physical or chemical ingression

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La Ciotat, France

Yann Yves René Loisel