Encoder, decoder, data processing apparatus, network system, data processing method, recording medium, and program
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
May 16, 2002
app pub date -
Jul 17, 2001
filing date -
Jul 18, 2000
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A network system is provided which can surely prevent data to be protected from being taken out by unauthorized outside accesses or users. A file server stores in a database a result (encode data d2) of encoding data d0 to be protected using first data d1 having a definite rule and second data .alpha.. A monitor server monitors data on a communication line and when the first data d1 is obtained from data X using the second data .alpha. and the definite rule which the first data d1 has can be detected based on a result of analyzing it when the data X is decoded, it recognizes that the data X is the encode data d2 and performs processing for interrupting communication or the like.
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