Hash value generating method and device, data encryption method and device, data decryption method and device
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United States of America Patent
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Sep 19, 2000
Issued Date -
N/A
app pub date -
Jun 4, 1998
filing date -
Dec 10, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Hash values, keys and cipher text which have a high degree of data scrambling are generated rapidly. When a message is sent, divisional data of the message are input, and injection extension processing is performed so that the data length of output data is longer than the data length of input data. Further, hash values are generated by a hash function containing multiplication processing, cyclic shift processing, etc.
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