Information Technology Journal 1812-5638 1812-5646 Asian Network for Scientific Information 10.3923/itj.2013.2324.2332 Liang Wei Zhang Dafang You Zhiqiang Li Wenwei Hosam Osama 12 2013 12 12 In order to reduce IP (Intellectual Property) infringements in VLSI (Very Large Scale Integration), many IP protection methods have been proposed. These methods have involved knowledge in fields of microelectronics, information hiding and embedded system. As a new field, IP protection can greatly reduce ownership misappropriation but it is faced with numerous challenges. On the basis of existing fundamental theories and engineering technologies, IP protection has rapidly developed in recent years. This study introduced IP protection in terms of concepts, characteristics and architecture. The challenges of IP protection technologies were analyzed. This study focused on the latest research improvement of IP protection technologies. The difficulties of digital watermarks on overhead, security, amounts were stated concretely. Meanwhile, this study presented some research methods for reference, such as multiple IP watermarking technology, models for watermark embedding and optimal computation, IP blind forensics technology and methods for evaluating watermark performance.

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