| 数字条件接收的多层密钥系统 |
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| 引用本文： | 童廷洋,李斌,杨会平,宁焕生. 数字条件接收的多层密钥系统[J]. 计算机工程与应用, 2004, 40(8): 154-156,164 |
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| 作者姓名： | 童廷洋 李斌 杨会平 宁焕生 |
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| 作者单位： | 哈尔滨工业大学,哈尔滨,150000;航天金卡公司,北京,100044 |
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| 摘 要： | 数字电视节目的数字条件接收系统是保护内容供应商利益的关键技术之一。通过节目加扰和多层加密机制,在CA开放的标准接口下,采用对称和非对称加密算法,完成用户的授权消息和用户管理消息的生成。通过密钥体系和设备的分离,依靠IC卡的安全性来保障系统的安全。
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| 关 键 词： | 数字条件接收 加密体系 多层密钥 IC卡解密 |
| 文章编号： | 1002-8331-(2004)08-0154-03 |
The Multilayered Encryption System in Digital Control Access |
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| Tong Tingyang Li Bin Yang Huiping Ning Huansheng. The Multilayered Encryption System in Digital Control Access[J]. Computer Engineering and Applications, 2004, 40(8): 154-156,164 |
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| Authors: | Tong Tingyang Li Bin Yang Huiping Ning Huansheng |
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| Affiliation: | Tong Tingyang 1 Li Bin 1 Yang Huiping 2 Ning Huansheng 21 |
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| Abstract: | The digital control access of digital television program is one of essential technical which protect content supplier benefit.Under the open standard connection of CA,the disturbing program with the multilayered encryption mechanism,uses the symmetrical and the asymmetrical encryption algorithm,while it products the authorized user news and management news.Through the key system and the equipment separation,it depends upon the security of the IC card to safeguard the security of the system. |
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| Keywords: | Digital control access Encryption system Multilayered encryption IC card decryption |
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