Abstract: A method for processing content stored on a component is disclosed. A first partition of a first memory is encrypted with a first encryption key and a second partition of the first memory is encrypted with a second encryption key. The second encryption key is different from the first encryption key. The first encryption key is stored in a storage register of the component and the second encryption key is stored in a first location of a non-volatile memory. A memory address of the first location is stored in the first partition of the first memory.

Abstract: An integrated circuit includes a number of components disposed at a surface of a semiconductor body and an interconnect region connecting the components into a functional circuit. A metallic shield is also produced in the interconnect region. A configurable stage is configurable to operate in a receiving antenna configuration or in a detection configuration during which the integrated circuit is configured to detect a presence of an external electromagnetic radiation representative of an attack by injection of faults.

Abstract: A method of authenticating a first electronic circuit includes generating a first signature using the first electronic circuit, the generating of the first signature being based on states of a plurality of electric nodes distributed within the first electronic circuit. A second signature is generated using a second electronic circuit, the generating of the second signature being based on states of a plurality of electric nodes distributed within the second electronic circuit. The first signature is compared to the second signature. The first electronic circuit is authenticated based on the comparison of the first signature to the second signature.

Abstract: A method of authenticating a slave device. The method includes initializing, by a host device, a charge retention circuit of the slave device, and receiving, by the host device, an indication of a discharge time of the charge retention circuit. The host device authenticates the slave device based on the received indication of the discharge time of the charge retention device.

Abstract: A method of authenticating a slave device. The method includes initializing, by a host device, a charge retention circuit of the slave device, and receiving, by the host device, an indication of a discharge time of the charge retention circuit. The host device authenticates the slave device based on the received indication of the discharge time of the charge retention device.

Abstract: A device is provided for jamming electromagnetic radiation liable to be emitted by at least one portion of an interconnect region located above at least one zone of an integrated electronic circuit produced in and on a semiconductor substrate. The device includes an antenna located above the at least one zone of the circuit and generating circuit coupled to the antenna and configured to generate an electrical signal having at least one pseudo-random property to pass through the antenna.

Abstract: An integrated circuit includes functional circuitry such as a processing core, memory interfaces, cryptographic circuitry, etc. The integrated circuit also includes protection circuitry to protect the functional circuitry of the integrated circuit against attacks by hidden channels. The protection circuitry, for each of a series of successive periods of time, selects a configuration of the functional circuitry from a set of configurations of the functional circuitry, sets a duration of the period of time, and applies the selected configuration of the functional circuitry for the set duration of the period of time.

Abstract: A non-volatile memory is organized in pages and has a word writing granularity of one or more bytes and a block erasing granularity of one or more pages. Logical addresses are scrambling into physical addresses used to perform operations in the non-volatile memory. The scrambling includes scrambling logical data addresses based on a page structure of the non-volatile memory and scrambling logical code addresses based on a word structure of the non-volatile memory.

Abstract: A method for processing content stored on a component is disclosed. A first partition of a first memory is encrypted with a first encryption key and a second partition of the first memory is encrypted with a second encryption key. The second encryption key is different from the first encryption key. The first encryption key is stored in a storage register of the component and the second encryption key is stored in a first location of a non-volatile memory. A memory address of the first location is stored in the first partition of the first memory.

Abstract: A method of authenticating a slave device. The method includes initializing, by a host device, a charge retention circuit of the slave device, and receiving, by the host device, an indication of a discharge time of the charge retention circuit. The host device authenticates the slave device based on the received indication of the discharge time of the charge retention device.

Abstract: A method for processing content stored on a component is disclosed. A first partition of a first memory is encrypted with a first encryption key and a second partition of the first memory is encrypted with a second encryption key. The second encryption key is different from the first encryption key. The first encryption key is stored in a storage register of the component and the second encryption key is stored in a first location of a non-volatile memory. A memory address of the first location is stored in the first partition of the first memory.

Abstract: The current signature of an electronic function is masked by controlling a current source that supplies power for the electronic function is controlled in a dynamically-varying manner. Excess current is detected and compared to a threshold. If the detected excess current meets the threshold, the operation of the electronic function is modified, for example by controlling a clock.

Abstract: A method of authenticating a slave device. The method includes initializing, by a host device, a charge retention circuit of the slave device, and receiving, by the host device, an indication of a discharge time of the charge retention circuit. The host device authenticates the slave device based on the received indication of the discharge time of the charge retention device.

Abstract: An integrated circuit includes a number of components disposed at a surface of a semiconductor body and an interconnect region connecting the components into a functional circuit. A metallic shield is also produced in the interconnect region.

Abstract: An algorithm execution method includes carrying out a first execution of the algorithm by a processing unit, sending at least one first result, which is to be written into a memory, to a memory management circuit, and storing said first result into a first area of the volatile memory. The method also includes carrying out a second execution of the algorithm by the processing unit, sending at least one second result, which is to be written into the memory, to the memory management circuit, and applying, by means of the memory management circuit, a different processing for the at least one second result in the second execution than was applied for the at least one first results in the first execution.

Abstract: A device is provided for jamming electromagnetic radiation liable to be emitted by at least one portion of an interconnect region located above at least one zone of an integrated electronic circuit produced in and on a semiconductor substrate. The device includes an antenna located above the at least one zone of the circuit and generating circuit coupled to the antenna and configured to generate an electrical signal having at least one pseudo-random property to pass through the antenna.

Abstract: A method of authenticating a slave device. The method includes initializing, by a host device, a charge retention circuit of the slave device, and receiving, by the host device, an indication of a discharge time of the charge retention circuit. The host device authenticates the slave device based on the received indication of the discharge time of the charge retention device.

Abstract: A device for detecting a laser attack made on an integrated circuit chip comprises a bipolar transistor of a first type formed in a semiconductor substrate, that bipolar transistor comprising a parasitic bipolar transistor of a second type. A buried region, forming the base of the parasitic bipolar transistor, operates as a detector of the variations in current flowing caused by impingement of laser light on the substrate.

Abstract: A method for processing content stored on a component is disclosed. A first partition of a first memory is encrypted with a first encryption key and a second partition of the first memory is encrypted with a second encryption key. The second encryption key is different from the first encryption key. The first encryption key is stored in a storage register of the component and the second encryption key is stored in a first location of a non-volatile memory. A memory address of the first location is stored in the first partition of the first memory.

Abstract: A device for detecting a laser attack made on an integrated circuit chip comprises a bipolar transistor of a first type formed in a semiconductor substrate, that bipolar transistor comprising a parasitic bipolar transistor of a second type. A buried region, forming the base of the parasitic bipolar transistor, operates as a detector of the variations in current flowing caused by impingement of laser light on the substrate.