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d7jk6fga
Wysłany: Wto 4:49, 08 Mar 2011
Temat postu: Sony VGP-BPS9 battery Electromagnetic safety into
Now our government, military, scientific research and other confidential department's daily work is inseparable from the computers,Sony VGP-BPS9 battery, networks, and other information equipment, these products are widely used to steal confidential information hostile elements at home and abroad to provide a more convenient way, making the country more sinister face and hidden threats to information security, and this threat with the development of information technology will become increasingly serious, there will not alleviate the trend. Well targeted on Electromagnetic generation of security risks and protection
To do well, So how to generate electromagnetic safety risk is it? Such as a work computer, its happening all the time within the current changes,IBM T43 Battery, these changes will be minor disturbance generate electromagnetic fields, and spread to the surrounding form of electromagnetic radiation,Bose Headphones Three operators 3G speeds Competition, if the electromagnetic radiation is classified by the carry clear information of current caused by the change will be intercepted by eavesdropping devices, the risk of information leakage occurs. With the CPU and other chips are now the continuous improvement of processing speed, the intensity of electromagnetic radiation will continue to strengthen, electromagnetic threats to information security is growing.
As shown, in accordance with the launch characteristics of the channel means leakage emission of radiation can be divided into two major categories of emission and conducted emission. The so-called radiation emission, the signal is time-varying magnetic field produced by current changes in the free space radiation leak,Sony VGP-BPS9 battery,FUJITSU Fpcbp98 Battery Sale of 10,999 yuan Fujits, steal from the electromagnetic radiation receiver and restore the useful information. Conducted emissions, it is the emission source of information through the signal lines and power lines and other conduits media launch out, the use of the receiver with the current clamp can also receive the transmission leakage signal.
Model of electromagnetic radiation through the vent can be seen to reduce the incidence of emission source strength,Apple A1106 battery, blocking the vent channel radio channels, the increase in the theft of client and other ways to achieve the noise leakage of electromagnetic radiation protection purposes. Therefore, for the above three, are now usually taken to suppression of international sources, shielding, three kinds of protective measures to reduce the interference of electromagnetic security risk.
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