Code diversity method and system
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United States of America Patent
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Aug 25, 2015
Grant Date -
May 2, 2013
app pub date -
Sep 12, 2011
filing date -
Oct 21, 2010
priority date (Note) -
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Abstract
A software diversity system including an executable provider to provide an executable program including component blocks such that different combinations of blocks are operative to perform a functionally encryption keys functionally equivalent data transformation, a cipher to encrypt the component blocks with cryptographic keys, a key selector to select a first selection of keys for a first device, such that the first selection is operative to decrypt a first combination of the blocks operative when executed to perform the same functionally equivalent data transformation, and select a second selection of keys for a second device, such that the second selection is operative to decrypt a second combination of the blocks operative when executed to perform the same functionally equivalent data transformation, and a transfer module to prepare for transfer the first and second selection of cryptographic keys for transfer to the first and second device, respectively. Related apparatus and methods are also included.
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