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Side-Channel Attack

A passive, noninvasive attack to observe the operation of a device. Side-channel attacks are used against smart cards. Common side-channel attacks are power monitoring attacks, timing attacks, and fault analysis attacks.


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A channel that conveys information by altering the performance of a system component or modifying a resource’s timing in a predictable manner. A covert channel in which one process signals information to another by modulating its own use of system resources in such a way that this manipulation affects the real response time observed by the second process. Covert channel in which one process signals information to another process by modulating its own use of system resources (e. g. , central processing unit time) in such a way that this manipulation affects the real response time observed by the second process.
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A type of self-charging battery that can be used to supply consistent clean power to sensitive equipment. A UPS functions by taking power in from the wall outlet, storing it in a battery, pulling power out of the battery, and then feeding that power to whatever devices are connected to it. By directing current through its battery, it is able to maintain a consistent clean power supply.
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Credit-card-sized ID, badge, or security pass that has a magnetic strip, bar code, or integrated circuit chip embedded in it. Smart cards can contain information about the authorized bearer that can be used for identification and/or authentication purposes.
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Builtin capability of a system to provide continued correct execution in the presence of a limited number of hardware or software faults. The ability of a system to suffer a fault but continue to operate. Fault tolerance is achieved by adding redundant components such as additional disks within a redundant array of independent disks (RAID) or additional servers within a failover clustered configuration.
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A smart card used by US government personnel that includes a picture and other information on the owner. It can be used as a badge and as a smart card.
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