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A Novel Method For Watermarking Sequential Circuits, Matthew Lewandowski
A Novel Method For Watermarking Sequential Circuits, Matthew Lewandowski
USF Tampa Graduate Theses and Dissertations
We present an Intellectual Property (IP) protection technique for sequential circuits driven by embedding a decomposed signature into a Finite State Machine (FSM) through the manipulation of the arbitrary state encoding of the unprotected FSM. This technique is composed of three steps: (a) transforming the signature into a watermark graph, (b) embedding watermark graphs into the original FSM's State Transition Graph (STG) and (c) generating models for verification and extraction. In the watermark construction process watermark graphs are generated from signatures. The proposed methods for watermark construction are: (1) BSD, (2) FSD, and (3) HSD. The HSD method is shown …
Approximate Sub-Graph Isomorphism For Watermarking Finite State Machine Hardware, Richard William Piper Meana
Approximate Sub-Graph Isomorphism For Watermarking Finite State Machine Hardware, Richard William Piper Meana
USF Tampa Graduate Theses and Dissertations
We present a method of mitigating theft of sequential circuit Intellectual Property hardware designs through means of watermarking. Hardware watermarking can be performed by selectively embedding a watermark in the state encoding of the Finite State Machine. This form of watermarking can be achieved by matching a directed graph representation of the watermark with a sub-graph in state transition graph representation of the FSM. We experiment with three approaches: a brute force method that provides a proof of concept, a greedy algorithm that provides excellent runtime with a drawback of sub-optimal results, and finally a simulated annealing method that provides …