Method and apparatus for protecting external call references

Details Method and apparatus for protecting external call references Method and apparatus for protecting external call references

2008-07-15

2008-07-15

Nguyen, Minh Dieu (Department: 2137)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Security kernel or utility

C713S167000, C713S189000, C726S002000, C726S003000, C726S005000, C717S162000, C717S163000, C717S164000, C719S330000, C719S331000, C719S332000

Reexamination Certificate

active

07401219

ABSTRACT:
The present invention is generally directed to a method, system, and article of manufacture that ensures the integrity of programs having variable portions. One aspect of this invention is a method for protecting software products having variant portions. This method includes identifying a reference to an external target in a software product, creating an identifier for the external target, and adding the identifier to the reference. In some embodiments, the unique identifier is a digital signature and the reference to an external target is a call to an external library.

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U.S. Appl. No. 09/957,421 “Method and Apparatus for Protecting Ongoing System Integrity of a Software Product Using Digital Signatures”, Michael E. Aho, et al., filed Sep. 20, 2001.

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