Data communication system
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United States of America Patent
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-
Jul 20, 2004
Grant Date -
N/A
app pub date -
Aug 31, 1999
filing date -
Sep 1, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system for decrypting an encrypted message comprises first and second decryption devices, the first decryption device having a higher security than the second decryption device. The system further comprises means for dividing the encrypted message into blocks, and means for providing at least the first block of the message to the first decryption device and for providing a plurality of further blocks of this message to the second decryption device. An output of the first decryption device is used as input of the second decryption device. The second decryption device operates according to a block chaining method for decrypting the plurality of further blocks.
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