Method and apparatus for performing concryption
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United States of America Patent
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-
Dec 26, 1995
Issued Date -
N/A
app pub date -
Apr 28, 1994
filing date -
Jun 7, 1991
priority date (Note) -
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status (Latency Note)
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Abstract
A method and apparatus for the integrated compression and encryption (concryption) of clear data and for the deconcryption of concrypted data to obtain the clear data for utilization. For concryption, the clear data and an encryption key are obtained, at least one compression step is performed and at least one encryption step is performed utilizing the encryption key. The encryption step is preferably performed on the final or intermediate results of a compression step, with compression being a multistep operation. For deconcryption, decompression and deencryption steps are performed on concrypted data in essentially the reverse order for the performance of corresponding compression and encryption steps during the concryption operation.
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