4.5.2 SecureDELTA creates secured diff files


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SecureDELTA application creates SECURE BINARY DIFF FILE, we called SECURE SFX


As specified in the previous slides, SecureDELTA creates SecureSFXTM file(s):


Let's resume the example above: A SECRET KEY is appended in the end of the TARGET FILE. This means that the source file will have to be ‘patched’ with a binary diff (delta) file containing a SecretKEY.


This is the target content appended at the end of the target file with the secret KEY:


The SecurePATCH binary diff file created by SecureDELTA application will no longer contain the SecretKey in the clear:


Even searching for a portion of the SecretKEY or the SecretKEY itself, will render the search useless. The SecretKEY is nowhere to be found in the SecurePATCH file.