Time stamp
The accurate time, synchronized with the standard time obtained from an authoritative time source such as time authorities (TA), which provide accurate time data.
 Digital signature (see Figure 1)
Technology that ensures the integrity (no change from the original data) and the authenticity (who created the data) of the digital data.
Founded in 1968 as a wholly owned subsidiary of Fujitsu Limited, Fujitsu Laboratories Limited is one of the premier research centers in the world. With a global network of laboratories in Japan, China, the United States and Europe, the organization conducts a wide range of basic and applied research in the areas of Multimedia, Personal Systems, Networks, Peripherals, Advanced Materials and Electronic Devices. For more information, please see:http://jp.fujitsu.com/group/labs/en/
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Date: 03 July, 2008
City: Kawasaki, Japan
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