| 音乐内容动态加密与许可授权系统设计与实现 |
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| 引用本文： | 张硕,马兆丰,芦效峰,杨义先,钮心忻.音乐内容动态加密与许可授权系统设计与实现[J].计算机科学,2011,38(12):43-48. |
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| 作者姓名： | 张硕 马兆丰 芦效峰 杨义先 钮心忻 |
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| 作者单位： | 1. 北京邮电大学网络与信息攻防技术教育部重点实验室 北京100876
2. 北京国泰信安科技有限公司 北京100086 |
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| 基金项目： | 国家973项目(2007CB311203); 国家自然科学基金(60803157,90812001); 国家242项目(2009A105); 国家标准制定计划(20080200-T-339); 国家质检公益性科研专项(10-126)资助 |
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| 摘 要： | 在数字音乐业务蓬勃发展的同时，版权侵权案件屡禁不止。以MP3为主的网络音乐可被随意下载和传播，因此其版权迫切需要得到保护。根据现有的DRM保护技术与方案，设计了一种应用于Windows Mobile终端系统的MP3文件DRM保护方案。该方案不需要分析MP3编解码过程，仅分析MP3文件结构，结合AES加密算法对文件进行结构化加密。用户通过AES解密、许可证策略、数字签名、CA证书等DRM技术，进行实时解密播放。实验验证了该方案具有较高的安全性与实时性特点，加密速度快，可以很好地应用于移动终端音乐版权保护中，达到移动终端数字版权保护的目的。
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| 关 键 词： | 数字版权管理，MP3，许可证书，数据加密 |
Design and Implementation of Music Content Dynamic Encryption and License Authorization System |
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| ZHANG Shuo,MA Zhao-feng,LU Xiao-feng,YANG Yi-xian,NIU Xin-xin.Design and Implementation of Music Content Dynamic Encryption and License Authorization System[J].Computer Science,2011,38(12):43-48. |
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| Authors: | ZHANG Shuo MA Zhao-feng LU Xiao-feng YANG Yi-xian NIU Xin-xin |
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| Affiliation: | ZHANG Shuo MA Zhao-feng LU Xiao-feng YANG Yi-xian NIU Xin-xin(Key Laboratory of Network and Information Attack & Defense Technology of MOE,Beijing University of Posts and Telecommunications,Beijing 100876,China)(Beijing National Security Science and Technology Co.Ltd,Beijing 100086,China) |
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| Abstract: | Copyright infringement cases often occur while the digital music business becomes booming. The MP3-based online music is downloaded and disseminated freely, so the copyright of MP3 must be protected urgently. According to the existing DRM protection technologies and solutions, a MP3 audio file DRM protection scheme based on Windows mobile system was designed. The solution doesn't require analysis of the process of MP3 encoding and decoding, only by analyzing the structure of MP3 files, and combining the technology of AES encryption algorithm, encrypts the file in struck When the content is packaged, it should be uploaded to the service platform and downloaded by the user. The user uses the DRM technology of AES decryption, license strategy, digital signature, CA certificate to finish real-time decryption play. The experiment shows that the scheme has the features of high security and real-time,and encryption is fast,which can be well applied to mobile terminal music copyright protection, achieving the purpose of the digital copyright protection. |
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| Keywords: | Digital rights management MP3 License Data encryption |
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