Information processing system using error-correcting codes and cryptography
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United States of America Patent
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Apr 2, 1996
Issued Date -
N/A
app pub date -
Sep 30, 1994
filing date -
Apr 19, 1991
priority date (Note) -
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status (Latency Note)
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Abstract
An information processing system using error-correcting codes and/or cryptography for processing and transmitting data including documents, drawings, images, and data bases includes a mechanism by which optional portions of data can be selected on a display screen and be assigned reliability and/or security levels, making possible the setting of access authority levels for optional portions of data. All or each optional portion of data within items or files can be processed and enciphered. Cipher text can be displayed on a screen. Then a security system being superior to man-machine interface is provided. For example, a company president can thus access secret data without that data being accessible to information managers and secretaries.
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