In view of this situation, the thesis design and implement a Software Copyright Protection system base on PKI.
鉴于这种情况，本文设计并实现了一个基于PKI的软件版权保护系统。
Copyright and trade secrets have historically been the primary protection mechanisms for software intellectual property, and they are still the best solutions.
版权和商业秘密在历史上一直是软件知识产权的主要保护机制，它们仍然是最好的解决方案。
In July, U.S. copyright Office ruled that bypassing a manufacturer's protection mechanisms to allow "handsets to execute software applications" no longer violates federal copyright law.
七月份，美国版权办公室裁决，绕开制造商的保护机制，使“手机执行软件程序”不再违反联邦版权法。
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