Electrical computers and digital processing systems: support – Data processing protection using cryptography
Reexamination Certificate
2011-07-26
2011-07-26
Chen, Shin-Hon (Department: 2431)
Electrical computers and digital processing systems: support
Data processing protection using cryptography
C703S013000, C703S014000, C703S015000, C713S001000, C713S100000, C713S150000, C713S187000, C713S190000, C716S030000, C716S030000, C716S030000, C716S030000, C716S117000, C716S126000, C726S002000, C326S008000, C326S041000, C326S047000, C326S101000
Reexamination Certificate
active
07987373
ABSTRACT:
Methods and apparatuses for enforcing terms of a licensing agreement between a plurality of parties involved in a particular hardware design through the use of hardware technologies. According to one embodiment, a hardware sub-design includes a license verification sub-design that is protected from user modification by encryption. In one embodiment, a license is generated based on a trusted host identifier within an external hardware device. In one embodiment, each trusted host identifier is unique, and no two integrated circuits share the same trusted host identifier. In another embodiment, the integrated circuit is a field programmable gate array or an application specific integrated circuit. In one embodiment, a license determines how long the hardware sub-design will operate when the hardware sub-design is implemented within an integrated circuit having a trusted host identifier.
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Blakely , Sokoloff, Taylor & Zafman LLP
Chen Shin-Hon
Synopsys Inc.
Szepesi Judith A.
Wright Bryan
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