Triple churning
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United States of America Patent
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Jan 12, 2010
Grant Date -
Jun 21, 2007
app pub date -
May 1, 2006
filing date -
Dec 16, 2005
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Abstract
A data encryption-decryption method includes the steps of receiving a data byte N and performing a triple-churning operation on byte N to obtain an encrypted byte N. Preferably, the triple-churning operation includes performing a first churning operation to obtain a first churned output, bit-wise XORing the first churned output with two values to obtain a first XOR result, performing a second churning operation on the first XOR result to obtain a second churned output, bit-wise XORing the second churned output with two values to obtain a second XOR result, and performing a third churning operation on the second XOR result to obtain encrypted byte N.
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