Abstract: A method for data transfer includes receiving a control signal triggering a transfer of a secret value into an element (24) of a circuit (20). In response to the control signal, a dummy value (42, 50) and the secret value are inserted in succession into the element of the circuit.

Abstract: An electronic device (22, 48, 50) includes an array (26) of memory cells, which are configured to store data values. One or more sense amplifiers (40) have respective inputs for receiving signals from the memory cells and are configured to output the data values corresponding to the received signals. Switching circuitry (36, 52) is coupled between the array of the memory cells and the sense amplifiers and is configured to receive an indication of a temporal pattern and to route the signals from the memory cells among the inputs of the sense amplifiers in accordance with the temporal pattern.

Abstract: A method for hindering detection of information unintentionally leaked from a secret held in a memory unit is described, the method including receiving a triggering event waiting for at least a first amount of time to pass after the receipt of the triggering event, the memory unit being in a non-operational state during the at least a first amount of time after the at least a first amount of time has passed, changing at least one first condition under which the memory unit operates, thereby causing the memory unit to enter an operational state, waiting for a second amount of time to pass after the changing at least one first condition, and changing, after the second amount of time, at least one second condition under which the memory unit operates, thereby causing the memory unit to enter the non-operational state, wherein access to the secret information is enabled only during the second amount of time, and detection of secret information unintentionally leaked is limited during the first amount of time.

Abstract: An integrated circuit device (20, 60) includes a plurality of memory cells (22), which are configured to store data. Multiple P-N junctions (24) are arranged so that a single, respective P-N junction is disposed in proximity to each memory cell and is configured to emit optical radiation during readout from the memory cell with a wavelength matching an emission wavelength of the memory cell.

Abstract: A method for data transfer includes receiving a control signal triggering a transfer of a secret value into an element (24) of a circuit (20). In response to the control signal, a dummy value (42, 50) and the secret value are inserted in succession into the element of the circuit.

Abstract: An integrated circuit device (20, 60) includes a plurality of memory cells (22), which are configured to store data. Multiple P-N junctions (24) are arranged so that a single, respective P-N junction is disposed in proximity to each memory cell and is configured to emit optical radiation during readout from the memory cell with a wavelength matching an emission wavelength of the memory cell.

Abstract: A method for hindering detection of information unintentionally leaked from a secret held in a memory unit is described, the method including receiving a triggering event waiting for at least a first amount of time to pass after the receipt of the triggering event, the memory unit being in a non-operational state during the at least a first amount of time after the at least a first amount of time has passed, changing at least one first condition under which the memory unit operates, thereby causing the memory unit to enter an operational state, waiting for a second amount of time to pass after the changing at least one first condition, and changing, after the second amount of time, at least one second condition under which the memory unit operates, thereby causing the memory unit to enter the non-operational state, wherein access to the secret information is enabled only during the second amount of time, and detection of secret information unintentionally leaked is limited during the first amount of time.

Abstract: An electronic device (22, 48, 50) includes an array (26) of memory cells, which are configured to store data values. One or more sense amplifiers (40) have respective inputs for receiving signals from the memory cells and are configured to output the data values corresponding to the received signals. Switching circuitry (36, 52) is coupled between the array of the memory cells and the sense amplifiers and is configured to receive an indication of a temporal pattern and to route the signals from the memory cells among the inputs of the sense amplifiers in accordance with the temporal pattern.

Abstract: An electronic device (22, 72) includes an array (24, 74) of memory cells, including at least one range of the cells in which at least one cell (38, 40, 76) is permanently fixed during manufacture of the device to have a given value, while others of the cells are permitted to be programmed subsequently. A readout circuit (26) is configured to concurrently read out all the cells in the range, including the at least one permanently-programmed cell and the subsequently-programmed cells.

Abstract: A method for hindering detection of information unintentionally leaked from a secret held in a memory unit is described, the method including receiving a triggering event waiting for at least a first amount of time to pass after the receipt of the triggering event, the memory unit being in a non-operational state during the at least a first amount of time after the at least a first amount of time has passed, changing at least one first condition under which the memory unit operates, thereby causing the memory unit to enter an operational state, waiting for a second amount of time to pass after the changing at least one first condition, and changing, after the second amount of time, at least one second condition under which the memory unit operates, thereby causing the memory unit to enter the non-operational state, wherein access to the secret information is enabled only during the second amount of time, and detection of secret information unintentionally leaked is limited during the first amount of time.

Abstract: A method and system for securing digital content for transmission to an end user device. In a preferred embodiment, the invention provides for: a control center for controlling access to the digital content by the end user device; transmitting scrambled digital content to the end user device, such that the end user device cannot play back the said scrambled digital content; contacting the control center to request a PECM (personal ECM), the PECM being specific to the end user device; transmitting the PECM to the end user device by the control center; and unscrambling the scrambled digital content by the end user device according to the PECM.

Abstract: A method for hindering detection of information unintentionally leaked from a secret held in a memory unit is described, the method including receiving a triggering event waiting for at least a first amount of time to pass after the receipt of the triggering event, the memory unit being in a non-operational state during the at least a first amount of time after the at least a first amount of time has passed, changing at least one first condition under which the memory unit operates, thereby causing the memory unit to enter an operational state, waiting for a second amount of time to pass after the changing at least one first condition, and changing, after the second amount of time, at least one second condition under which the memory unit operates, thereby causing the memory unit to enter the non-operational state, wherein access to the secret information is enabled only during the second amount of time, and detection of secret information unintentionally leaked is limited during the first amount of time.

Abstract: Circuitry for protection of an integrated circuit (20) which includes operational-circuits (24) formed on a chip (21). The circuitry includes a plurality of detectors (26), integrally formed on the chip as part of the integrated circuit and dispersed among the operational-circuits on the chip. The detectors are adapted, in response to radiation incident on the chip, to trigger a security measure so as to prevent tampering with the integrated circuit.

Abstract: A system and a method for flexible, yet secure distribution of digital content items, optionally with an automatic payment mechanism for purchasing such content. The present invention supports the distribution of content to end user devices from a central distribution point, as in client-server models and variations thereof, and/or peer-to-peer distribution, for example between end user devices. In addition, the present invention also supports distribution models within either of these mechanisms for unitary distribution, to a specified end user device, or broadcast/multicast distribution, to a plurality of end user devices. In any case, in order for the distributed content to be operative, for example to be “played back” or otherwise displayed, the recipient end user device must be in communication with a network control center.

Abstract: Circuitry for protection of an integrated circuit (20) which includes operational-circuits (24) formed on a chip (21). The circuitry includes a plurality of detectors (26), integrally formed on the chip as part of the integrated circuit and dispersed among the operational-circuits on the chip. The detectors are adapted, in response to radiation incident on the chip, to trigger a security measure so as to prevent tampering with the integrated circuit.

Abstract: A system and a method for flexible, yet secure distribution of digital content items, optionally with an automatic payment mechanism for purchasing such content. The present invention supports the distribution of content to end user devices from a central distribution point (320), as in client-server models and variations thereof, and/or peer-to-peer distribution, for example between end user devices (310). In addition, the present invention also supports distribution models within either of these mechanisms for unitary distribution, to a specified end user device, or broadcast/multicast distribution, to a plurality of end user devices. In any case, in order for the distributed content to be operative, for example to be “played back” or otherwise displayed, the recipient end user device (310) must be in communication with a network control center (240).