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1by Polk, Tim, 1962-Subjects: “...Data encryption (Computer science)...”
Published 2006
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Government Document Book -
2by Polk, Tim, 1962-Subjects: “...Data encryption (Computer science) United States....”
Published 2010
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Government Document eBook -
3by Polk, Tim, 1962-Subjects: “...Data encryption (Computer science)...”
Published 2009
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Government Document eBook