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Mixed signal design watermarking for IP protection

机译：用于IP保护的混合信号设计水印

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摘要

Watermarking is the embedding of data in a medium for ownership, verification, distribution tracking, authentication, copyright protection, and data hiding. It has been well studied for use in digital media such as in audio, digital images and video. In this work, watermarking is extended to the realm of computer-aided design (CAD) for physical design of integrated circuits (IC's) in order to protect and facilitate re-use of intellectual property (IP) blocks (circuitry). As designs become more complex and cycle times shorter, the re-use of IP blocks is becoming more and more important. However, in order to aid in this re-use, improved methods of securing and tracking ownership need to be in place. Watermarking these valuable design blocks, whether custom transistors or standard cells, is shown to be a practical method of securing ownership of the property, even after local perturbations in the design. A method of watermarking circuit elements in both fully-custom analog or digital macrocell designs as well as analog or digital standard cell based designs is presented. This protection scheme thus applies to analog, digital, and mixed signal designs, with the only exception being that of a gate array implemented circuits.
机译：水印是将数据嵌入所有权，验证，分发跟踪，身份验证，版权保护和数据隐藏的介质中。对于在音频，数字图像和视频等数字媒体中使用它，已经进行了充分的研究。在这项工作中，将水印扩展到用于集成电路（IC）物理设计的计算机辅助设计（CAD）领域，以保护和促进知识产权（IP）块（电路）的重用。随着设计变得越来越复杂，周期时间越来越短，IP块的重用变得越来越重要。但是，为了帮助这种重用，需要采用改进的保护和跟踪所有权的方法。对这些有价值的设计模块（无论是定制晶体管还是标准单元）加水印，即使在设计中受到局部干扰后，仍是确保财产所有权的实用方法。提出了一种在完全定制的模拟或数字宏单元设计以及基于模拟或数字标准单元的设计中对电路元件加水印的方法。因此，该保护方案适用于模拟，数字和混合信号设计，唯一的例外是门阵列实现的电路。

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