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1. 发明授权

US07424112B2 Ciphertext switching for syntax compliant encryption 有权
标题翻译：用于符合语法的加密的密文切换
公开(公告)号：US07424112B2
公开(公告)日：2008-09-09
申请号：US11081279
申请日：2005-03-16
申请人： Bin Zhu , Yang Yang , Shipeng Li
发明人： Bin Zhu , Yang Yang , Shipeng Li
IPC分类号： H04L9/00
CPC分类号： H04L9/065 , H04L2209/30 , H04L2209/80
摘要： Systems and methods providing ciphertext switching for syntax compliant encryption are described. In one aspect, intermediate ciphertext is generated from syntax compliant plaintext. Post-processing is applied to the intermediate ciphertext to determine if there are any illegal symbols in the intermediate ciphertext. If an illegal symbol is located, the illegal symbol in the intermediate ciphertext is switched with a corresponding plaintext symbol. One or more iterations of the post-processing and switching operations result in syntax compliant ciphertext.
摘要翻译：描述了为符合语法的加密提供密文切换的系统和方法。在一个方面，从语法兼容的明文生成中间密文。后处理应用于中间密文以确定中间密文中是否存在任何非法符号。如果存在非法符号，则用相应的明文符号切换中间密文中的非法符号。后处理和切换操作的一个或多个迭代导致符合语法的密文。

2. 发明申请

US20060227965A1 Locally interative encryption generating compliant ciphertext for general syntax specifications 有权
标题翻译：本地迭代加密生成符合一般语法规范的密文
公开(公告)号：US20060227965A1
公开(公告)日：2006-10-12
申请号：US11095048
申请日：2005-03-31
申请人： Bin Zhu , Yang Yang , Shipeng Li
发明人： Bin Zhu , Yang Yang , Shipeng Li
IPC分类号： H04K1/06
CPC分类号： H04L9/0637 , H04L9/065 , H04L2209/26 , H04L2209/30 , H04L2209/603
摘要： A fast and secure syntax compliant encryption schema, “locally iterative encryption,” can produce compliant ciphertext for a general syntax specification. In one implementation, an engine partitions a data stream into blocks, and encrypts each block iteratively until syntax compliance conditions are met. A system using the schema can utilize either stream ciphers or block ciphers in different modes. Locally iterative encryption methods are fast and remain at approximately the same speed even as the length of the data stream to be encrypted increases. Besides providing superior processing speed, the locally iterative encryption schema is also more robust to errors in the resulting ciphertext and in the resulting decrypted plaintext than conventional syntax compliant encryption techniques. Locally iterative encryption is secure as long as an underlying encryption cipher selected for use in the schema is secure.
摘要翻译：快速和安全的语法兼容加密模式“本地迭代加密”可以为通用语法规范提供符合规定的密文。在一个实现中，引擎将数据流分割成块，并且迭代地对每个块进行加密，直到满足语法符合条件。使用该模式的系统可以利用不同模式的流密码或块密码。即使要加密的数据流的长度增加，本地迭代加密方法也是快速且保持大致相同的速度。除了提供优越的处理速度之外，本地迭代加密模式对于所生成的密文中的错误以及生成的解密明文也比传统的符合法规的加密技术更加鲁棒。只要选择用于模式的底层加密密码是安全的，本地迭代加密就是安全的。

3. 发明授权

US08081755B2 JPEG2000 syntax-compliant encryption with full scalability 有权
标题翻译：具有完全可扩展性的JPEG2000语法兼容加密
公开(公告)号：US08081755B2
公开(公告)日：2011-12-20
申请号：US11419468
申请日：2006-05-19
申请人： Bin Zhu , Shipeng Li , Yang Yang
发明人： Bin Zhu , Shipeng Li , Yang Yang
IPC分类号： H04N7/167 , H04K1/04 , H04K1/06 , H04L9/00 , H04L29/06 , G06F21/00
CPC分类号： H04K1/00 , H04L9/0637
摘要： A method and system is provided for encrypting an image compressed with a JPEG2000-based compression with minimal overhead so that the encrypted codestream is compliant with the syntax of the JPEG2000-based compression and can be scaled without decrypting. The encryption system generates, for each independent encryption segment of a codestream for an image, a unique initialization vector from a global initialization vector in such a way that the initialization vectors can be generated during decryption from the global initialization vector, even after truncation. The encryption system encrypts each independent encryption segment using its unique initialization vector. The encryption system ensures that the encrypted codestream is compliant with the syntax of the JPEG2000-based compression both as originally generated and as truncated by an encryption-unaware device.
摘要翻译：提供了一种方法和系统，用于以最小的开销加密用基于JPEG2000的压缩压缩的图像，使得加密的码流符合基于JPEG2000的压缩的语法，并且可以在不进行解密的情况下进行缩放。加密系统对于图像的码流的每个独立加密段产生来自全局初始化向量的唯一初始化向量，使得即使在截断之后也可以在全局初始化向量的解密期间生成初始化向量。加密系统使用其唯一的初始化向量来加密每个独立的加密段。加密系统确保加密的码流符合基于JPEG2000的压缩的语法，原始生成并被加密不知情的设备截断。

4. 发明授权

US07769168B2 Locally interative encryption generating compliant ciphertext for general syntax specifications 有权
标题翻译：本地迭代加密生成符合一般语法规范的密文
公开(公告)号：US07769168B2
公开(公告)日：2010-08-03
申请号：US11095048
申请日：2005-03-31
申请人： Bin Zhu , Yang Yang , Shipeng Li
发明人： Bin Zhu , Yang Yang , Shipeng Li
IPC分类号： H04K1/06
CPC分类号： H04L9/0637 , H04L9/065 , H04L2209/26 , H04L2209/30 , H04L2209/603
摘要： A fast and secure syntax compliant encryption schema, “locally iterative encryption,” can produce compliant ciphertext for a general syntax specification. In one implementation, an engine partitions a data stream into blocks, and encrypts each block iteratively until syntax compliance conditions are met. A system using the schema can utilize either stream ciphers or block ciphers in different modes. Locally iterative encryption methods are fast and remain at approximately the same speed even as the length of the data stream to be encrypted increases. Besides providing superior processing speed, the locally iterative encryption schema is also more robust to errors in the resulting ciphertext and in the resulting decrypted plaintext than conventional syntax compliant encryption techniques. Locally iterative encryption is secure as long as an underlying encryption cipher selected for use in the schema is secure.
摘要翻译：快速和安全的语法兼容加密模式“本地迭代加密”可以为通用语法规范提供符合规定的密文。在一个实现中，引擎将数据流分割成块，并且迭代地对每个块进行加密，直到满足语法符合条件。使用该模式的系统可以利用不同模式的流密码或块密码。即使要加密的数据流的长度增加，本地迭代加密方法也是快速且保持大致相同的速度。除了提供优越的处理速度之外，本地迭代加密模式对于所生成的密文中的错误以及生成的解密明文也比传统的符合法规的加密技术更加鲁棒。只要选择用于模式的底层加密密码是安全的，本地迭代加密就是安全的。

5. 发明申请

US20060282665A1 MPEG-4 ENCRYPTION ENABLING TRANSCODING WITHOUT DECRYPTION 失效
标题翻译： MPEG-4加密使得无需转换
公开(公告)号：US20060282665A1
公开(公告)日：2006-12-14
申请号：US11419464
申请日：2006-05-19
申请人： Bin Zhu , Chang Chen , Shipeng Li , Yang Yang
发明人： Bin Zhu , Chang Chen , Shipeng Li , Yang Yang
IPC分类号： H04L9/00
CPC分类号： H04N7/1675 , H04N19/20 , H04N19/34 , H04N21/2347 , H04N21/8451
摘要： A method and system for encrypting a video compressed with MPEG-4 FGS compression with minimal overhead is provided. The encryption system encrypts the video into independently encrypted segments that can be either a video packet or a video block. When the encryption system encrypts based on video packets, it encrypts the data to ensure that the encrypted data does not emulate any video packet delimiting markers. When the encryption system encrypts based on video blocks, it encrypts the coded bitstream for each video block independently, from the most significant bitplane to the least significant bitplane, using either a stream or a block cipher. After all the video blocks are independently encrypted, the encryption system partitions the encrypted data into video packets and adds a buffering bit, if necessary, to prevent emulation of video packet delimiting markers. The encryption system may generate an initialization vector for each independently encrypted segment.
摘要翻译：提供了一种用于以最小的开销加密以MPEG-4FGS压缩压缩的视频的方法和系统。加密系统将视频加密成可以是视频分组或视频块的独立加密的分段。当加密系统基于视频数据包进行加密时，它对数据进行加密，以确保加密的数据不会模拟任何视频数据包分隔标记。当加密系统基于视频块加密时，它使用流或分组密码，从最高有效位平面到最低有效位平面，独立地加密每个视频块的编码位流。在所有视频块被独立加密之后，加密系统将加密的数据分割成视频分组，并在必要时添加缓冲位以防止视频分组分隔标记的仿真。加密系统可以为每个独立加密的段生成初始化向量。

6. 发明申请

US20060265601A1 JPEG2000 SYNTAX-COMPLIANT ENCRYPTION WITH FULL SCALABILITY 有权
标题翻译： JPEG2000具有完整的可扩展性的合成加密
公开(公告)号：US20060265601A1
公开(公告)日：2006-11-23
申请号：US11419468
申请日：2006-05-19
申请人： Bin Zhu , Shipeng Li , Yang Yang
发明人： Bin Zhu , Shipeng Li , Yang Yang
IPC分类号： H04K1/00
CPC分类号： H04K1/00 , H04L9/0637
摘要： A method and system is provided for encrypting an image compressed with a JPEG2000-based compression with minimal overhead so that the encrypted codestream is compliant with the syntax of the JPEG2000-based compression and can be scaled without decrypting. The encryption system generates, for each independent encryption segment of a codestream for an image, a unique initialization vector from a global initialization vector in such a way that the initialization vectors can be generated during decryption from the global initialization vector, even after truncation. The encryption system encrypts each independent encryption segment using its unique initialization vector. The encryption system ensures that the encrypted codestream is compliant with the syntax of the JPEG2000-based compression both as originally generated and as truncated by an encryption-unaware device.
摘要翻译：提供了一种方法和系统，用于以最小的开销加密用基于JPEG2000的压缩压缩的图像，使得加密的码流符合基于JPEG2000的压缩的语法，并且可以在不进行解密的情况下进行缩放。加密系统对于图像的码流的每个独立加密段产生来自全局初始化向量的唯一初始化向量，使得即使在截断之后也可以在全局初始化向量的解密期间生成初始化向量。加密系统使用其唯一的初始化向量来加密每个独立的加密段。加密系统确保加密的码流符合基于JPEG2000的压缩的语法，原始生成并被加密不知情的设备截断。

7. 发明申请

US20060210081A1 Ciphertext switching for syntax compliant encryption 有权
标题翻译：用于符合语法的加密的密文切换
公开(公告)号：US20060210081A1
公开(公告)日：2006-09-21
申请号：US11081279
申请日：2005-03-16
申请人： Bin Zhu , Yang Yang , Shipeng Li
发明人： Bin Zhu , Yang Yang , Shipeng Li
IPC分类号： H04L9/00
CPC分类号： H04L9/065 , H04L2209/30 , H04L2209/80
摘要： Systems and methods providing ciphertext switching for syntax compliant encryption are described. In one aspect, intermediate ciphertext is generated from syntax compliant plaintext. Post-processing is applied to the intermediate ciphertext to determine if there are any illegal symbols in the intermediate ciphertext. If an illegal symbol is located, the illegal symbol in the intermediate ciphertext is switched with a corresponding plaintext symbol. One or more iterations of the post-processing and switching operations result in syntax compliant ciphertext.
摘要翻译：描述了为符合语法的加密提供密文切换的系统和方法。在一个方面，从语法兼容的明文生成中间密文。后处理应用于中间密文以确定中间密文中是否存在任何非法符号。如果存在非法符号，则用相应的明文符号切换中间密文中的非法符号。后处理和切换操作的一个或多个迭代导致符合语法的密文。

8. 发明授权

US07953224B2 MPEG-4 encryption enabling transcoding without decryption 失效
标题翻译：支持MPEG-4加密，无需解密
公开(公告)号：US07953224B2
公开(公告)日：2011-05-31
申请号：US11419464
申请日：2006-05-19
申请人： Bin Zhu , Chang Wen Chen , Shipeng Li , Yang Yang
发明人： Bin Zhu , Chang Wen Chen , Shipeng Li , Yang Yang
IPC分类号： H04L9/00
CPC分类号： H04N7/1675 , H04N19/20 , H04N19/34 , H04N21/2347 , H04N21/8451
摘要： A method and system for encrypting a video compressed with MPEG-4 FGS compression with minimal overhead is provided. The encryption system encrypts the video into independently encrypted segments that can be either a video packet or a video block. When the encryption system encrypts based on video packets, it encrypts the data to ensure that the encrypted data does not emulate any video packet delimiting markers. When the encryption system encrypts based on video blocks, it encrypts the coded bitstream for each video block independently, from the most significant bitplane to the least significant bitplane, using either a stream or a block cipher. After all the video blocks are independently encrypted, the encryption system partitions the encrypted data into video packets and adds a buffering bit, if necessary, to prevent emulation of video packet delimiting markers. The encryption system may generate an initialization vector for each independently encrypted segment.
摘要翻译：提供了一种用于以最小的开销加密以MPEG-4FGS压缩压缩的视频的方法和系统。加密系统将视频加密成可以是视频分组或视频块的独立加密的分段。当加密系统基于视频数据包进行加密时，它对数据进行加密，以确保加密的数据不会模拟任何视频数据包分隔标记。当加密系统基于视频块加密时，它使用流或分组密码，从最高有效位平面到最低有效位平面，独立地加密每个视频块的编码位流。在所有视频块被独立加密之后，加密系统将加密的数据分割成视频分组，并在必要时添加缓冲位以防止视频分组分隔标记的仿真。加密系统可以为每个独立加密的段生成初始化向量。

9. 发明申请

US20070113096A1 Peer-to-Peer Networks with Protections 失效
标题翻译：对等网络与保护
公开(公告)号：US20070113096A1
公开(公告)日：2007-05-17
申请号：US11381951
申请日：2006-05-05
申请人： Bin Zhu , Xiaoming Wang , Shipeng Li
发明人： Bin Zhu , Xiaoming Wang , Shipeng Li
IPC分类号： H04L9/00
CPC分类号： H04L67/104 , H04L9/3236 , H04L9/3263 , H04L63/0407 , H04L63/0823 , H04L2209/603 , H04L2209/80
摘要： In a peer-to-peer environment, copyrights and users' privacies can be protected by a tracking mechanism. In described implementations, tracking mechanisms can use certificates that are produced using random numbers to protect the privacy of users and/or certificates that are produced responsive to at least one hardware identifier to enable uploader to be identified to protect copyrights.
摘要翻译：在对等环境中，版权和用户的隐私可以通过跟踪机制来保护。在所描述的实现中，跟踪机制可以使用使用随机数产生的证书来保护响应于至少一个硬件标识符产生的用户和/或证书的隐私，以使上载者被识别以保护版权。

10. 发明申请

US20050080746A1 Digital rights management system 失效
标题翻译：数字版权管理系统
公开(公告)号：US20050080746A1
公开(公告)日：2005-04-14
申请号：US10685234
申请日：2003-10-14
申请人： Bin Zhu , Guofei Gu , Shipeng Li
发明人： Bin Zhu , Guofei Gu , Shipeng Li
IPC分类号： G06F15/00 , G06F21/00 , G06F21/10 , G06F21/62 , G06Q30/06 , G06Q50/10 , G06Q99/00 , G09C1/00 , H04L9/08 , H04L29/08 , G06F17/60
CPC分类号： H04L67/104 , G06F21/10 , G06F2221/0753 , G06F2221/0784 , H04L63/10 , H04L69/329
摘要： A public licensing infrastructure (PLI) for a digital rights management (DRM) system is described. In an implementation, a method includes generating a formal license for content. The formal license includes a decryption key for decrypting the content and access rules for accessing the content. A plurality of license authorities is configured to provide a plurality of partial licenses. The plurality of partial licenses is combinable to form the formal license. Each license authority provides a respective partial license.
摘要翻译：描述了数字版权管理（DRM）系统的公共许可基础设施（PLI）。在实现中，一种方法包括生成内容的正式许可证。正式许可证包括用于解密内容的解密密钥和用于访问内容的访问规则。多个许可机构被配置为提供多个部分许可证。多个部分许可证可组合形成正式许可证。每个许可证机构都提供相应的部分许可证。

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