Securing circuit designs within circuit design tools

Details Securing circuit designs within circuit design tools Securing circuit designs within circuit design tools

2007-04-12

2011-12-06

Lanier, Benjamin (Department: 2432)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

C713S193000

Reexamination Certificate

active

08074077

ABSTRACT:
A method of securing a circuit design can include generating a string including a plurality of elements. The plurality of elements can include elements of design information selected from within the circuit design and at least one security element indicating whether the circuit design is protected. The method further can include permuting the plurality of elements of the string, encrypting the permuted string using a key shared with a circuit design tool, and including the permuted and encrypted string within the circuit design.

REFERENCES:
patent: 5978476 (1999-11-01), Redman et al.
patent: 2002/0138441 (2002-09-01), Lopatic
patent: 2006/0129627 (2006-06-01), Phillips et al.

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