System and method providing dependency networks throughout applications for attack resistance
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United States of America Patent
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Nov 7, 2017
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app pub date -
Mar 24, 2011
filing date -
Mar 24, 2011
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Abstract
A method and system is provided to automatically propagate dependencies from one part of a software application to another previously unrelated part. Propagation of essential code functionality and data to other parts of the program serves to augment common arithmetic functions with Mixed Boolean Arithmetic (MBA) formulae that are bound to pre-existing parts of the program. A software application is first analyzed on a compiler level to determine the program properties which hold in the program. Thereafter, conditions are constructed based on these properties and encoded in formulae that encode the condition in data and operations. Real dependencies throughout the application are therefore created such that if a dependency is broken the program will no longer function correctly.
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