China succeds in quantum cryptography network test


	China succeds in quantum cryptography network test

taksmaster

4-4-2007 6:42 PM

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science, technology, quantum, computers

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                          </FONT><P><FONT id="Zoom">    BEIJING, April 2 (Xinhua) -- China's first quantum cryptography network has been successfully tested in Beijing, the Chinese Academy of Sciences announced on Monday. 
</FONT></P><P><FONT id="Zoom">    The commercial communication network of the Chinese Network Company (CNC) was used to test the quantum network. 
</FONT></P><P><FONT id="Zoom">    The testing was carried out by the Key Lab of Quantum Information under the University of Science and Technology. Leading scientist Guo Guangcan said that current cryptography faces challenges from quantum computers, because theoretically all codes can be deciphered. 
</FONT></P><P><FONT id="Zoom">    But quantum information cannot be copied and any interception of quantum information is easily discovered, Guo said, adding that the new quantum cryptography is therefore "absolutely safe" and proof against decoding. 
</FONT></P><P><FONT id="Zoom">    The research group successfully completed a 125-km fiber point-to-point quantum key distribution (QKD) experiment between Beijing and Tianjin in 2004, which solved the problem of stability in quantum cryptography systems. </FONT></p> <FONT id="Zoom">                      </FONT></DIV></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/A045FEA8-B89C-4110-80BF-D3B5314A70EE/blog/" title="blog or email this clip"><img src="http://content8.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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