Cisco Technology, Inc.

Nds Corporation

Zvi Shkedy

Chaim Shen-Orr

Reuven Elbaum

Yonatan Shlomovich

Yigal Shapiro

Yaacov Belenky

Lior Amarilio

Uri Bear

Itsik Mantin

Hillel Michael Solow

Yossi Tsuria

Eliphaz Hibshoosh

Gyora M Benedek

Reuben Sumner

Yaakov (Jordan) Levy

Arie Haenel

Chaim D Shen-Orr

Chaim Shen Orr

Gyora Benedyk

Yaakov Levy

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

Preventing data extraction by side-channel attack

An electronic device () includes an array () of memory cells, which are configured to store data values. One or more sense amplifiers () 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 () 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.

Preventing unauthorized data extraction

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. Related apparatus and methods are also described.

Security within integrated circuits

An integrated circuit device () includes a plurality of memory cells (), which are configured to store data. Multiple P-N junctions () 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.

Protection of stored data using optical emitting elements

A system and a method for providing variable security mechanisms for securing digital content, in which a single security mechanism is not used for all content. Instead, at least one characteristic or feature of the security mechanism is varied between units, instances or categories of content. Therefore, even if unauthorized access is gained to a single unit of content, the overall integrity and security of the system for content distribution is not compromised. Preferably, security is provided though a general mechanism, which is then varied in order to provide variable, dissimilar security schemes for different types of content. By 'type of content', it is meant any of a single unit of content, a single instance of content or a single category of content. For example, for a category of content, the content may be characterized according to the identity of the content itself, such as the title of a movie for example, and/or according to the owner of a particular copy of the content. Thus, different security schemes may optionally and preferably be generated from a particular root structure. Related apparatus and methods are also provided.

Digital rights management system and method

A system and a method for providing variable security mechanisms for securing digital content, in which a single security mechanism is not used for all content. Instead, at least one characteristic or feature of the security mechanism is varied between units, instances or categories of content. Therefore, even if unauthorized access is gained to a single unit of content, the overall integrity and security of the system for content distribution is not compromised. Preferably, security is provided through a general mechanism, which is then varied in order to provide variable, dissimilar security schemes for different types of content. By 'type of content', it is meant any of a single unit of content, a single instance of content or a single category of content. For example, for a category of content, the content may be characterized according to the identity of the content itself, such as the title of a movie for example, and/or according to the owner of a particular copy of the content. Thus, different security schemes may optionally and preferably be generated from a particular root structure. Related apparatus and methods are also provided.

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Karmiel, Israel

Zvi Shkedy