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公开(公告)号：US08121288B2
公开(公告)日：2012-02-21
申请号：US12250144
申请日：2008-10-13
申请人： Dong Xie , Rong Yan , Jian Zhang
发明人： Dong Xie , Rong Yan , Jian Zhang
CPC分类号： H04N21/44055 , H04L9/0637 , H04L9/088 , H04L29/06027 , H04L65/607 , H04N7/1675 , H04N21/23476
摘要： The present invention provides methods, systems and apparatus for encrypting and for decrypting a data stream, for securely sending a data stream and for securely receiving a data stream, and for secure transmission of a data stream. The data stream, after at least a part of it being encrypted, is transmitted from a sender to a receiver via a channel. An exemplary method for encrypting comprises: adjusting encryption attributes during transmission; encrypting the data stream according to the adjusted encryption attributes; and transmitting the encrypted data stream and information of the encryption attributes to the receiver.
摘要翻译： 本发明提供了用于加密和解密数据流的方法，系统和装置，用于安全地发送数据流和用于安全地接收数据流以及数据流的安全传输。 数据流在其至少一部分被加密之后，经由信道从发送者发送到接收者。 一种用于加密的示例性方法包括：在传输期间调整加密属性; 根据调整后的加密属性加密数据流; 并将加密的数据流和加密属性的信息发送到接收机。
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公开(公告)号：US07436955B2
公开(公告)日：2008-10-14
申请号：US10839915
申请日：2004-05-06
申请人： Rong Yan , Jian Zhang , Dong Xie
发明人： Rong Yan , Jian Zhang , Dong Xie
CPC分类号： H04N21/44055 , H04L9/0637 , H04L9/088 , H04L29/06027 , H04L65/607 , H04N7/1675 , H04N21/23476
摘要： The present invention provides methods, systems and apparatus for encrypting and for decrypting a data stream, for securely sending a data stream and for securely receiving a data stream, and for secure transmission of a data stream. The data stream, after at least a part of it being encrypted, is transmitted from a sender to a receiver via a channel. An exemplary method for encrypting comprises: adjusting encryption attributes during transmission; encrypting the data stream according to the adjusted encryption attributes; and transmitting the encrypted data stream and information of the encryption attributes to the receiver.
摘要翻译： 本发明提供了用于加密和解密数据流的方法，系统和装置，用于安全地发送数据流和用于安全地接收数据流以及数据流的安全传输。 数据流在其至少一部分被加密之后，经由信道从发送者发送到接收者。 一种用于加密的示例性方法包括：在传输期间调整加密属性; 根据调整后的加密属性加密数据流; 并将加密的数据流和加密属性的信息发送到接收机。
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公开(公告)号：US20090034721A1
公开(公告)日：2009-02-05
申请号：US12250144
申请日：2008-10-13
申请人： Rong Yan , Jiang Zhang , Dong Xie
发明人： Rong Yan , Jiang Zhang , Dong Xie
IPC分类号： H04L9/18
CPC分类号： H04N21/44055 , H04L9/0637 , H04L9/088 , H04L29/06027 , H04L65/607 , H04N7/1675 , H04N21/23476
摘要： The present invention provides methods, systems and apparatus for encrypting and for decrypting a data stream, for securely sending a data stream and for securely receiving a data stream, and for secure transmission of a data stream. The data stream, after at least a part of it being encrypted, is transmitted from a sender to a receiver via a channel. An exemplary method for encrypting comprises: adjusting encryption attributes during transmission; encrypting the data stream according to the adjusted encryption attributes; and transmitting the encrypted data stream and information of the encryption attributes to the receiver.
摘要翻译： 本发明提供了用于加密和解密数据流的方法，系统和装置，用于安全地发送数据流和用于安全地接收数据流以及数据流的安全传输。 数据流在其至少一部分被加密之后，经由信道从发送者发送到接收者。 一种用于加密的示例性方法包括：在传输期间调整加密属性; 根据所调整的加密属性加密数据流; 并将加密的数据流和加密属性的信息发送到接收机。
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公开(公告)号：US20090190763A1
公开(公告)日：2009-07-30
申请号：US12418938
申请日：2009-04-06
申请人： Jian Zhang , Ling Shao , Dong Xie
发明人： Jian Zhang , Ling Shao , Dong Xie
CPC分类号： G06F21/10
摘要： Multi-key content processing systems and methods, for processing content with at least one distribution target position. Each of the distribution target positions corresponds to an authorization key. An example method includes the steps of: encrypting said content with a content key; forming a key link based on said content key and the authorization key of said at least one distribution target position; and attaching said key link to the encrypted content.
摘要翻译： 多键内容处理系统和方法，用于处理具有至少一个分发目标位置的内容。 分配目标位置中的每一个对应于授权密钥。 一种示例性方法包括以下步骤：用内容密钥加密所述内容; 基于所述内容密钥和所述至少一个分发目标位置的授权密钥形成密钥链路; 以及将所述密钥链接附加到加密的内容。
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公开(公告)号：US08139769B2
公开(公告)日：2012-03-20
申请号：US12418938
申请日：2009-04-06
申请人： Jian Zhang , Ling Shao , Dong Xie
发明人： Jian Zhang , Ling Shao , Dong Xie
IPC分类号： H04L9/00
CPC分类号： G06F21/10
摘要： Multi-key content processing systems and methods, for processing content with at least one distribution target position. Each of the distribution target positions corresponds to an authorization key. An example method includes the steps of: encrypting said content with a content key; forming a key link based on said content key and the authorization key of said at least one distribution target position; and attaching said key link to the encrypted content.
摘要翻译： 多键内容处理系统和方法，用于处理具有至少一个分发目标位置的内容。 分配目标位置中的每一个对应于授权密钥。 一种示例性方法包括以下步骤：用内容密钥加密所述内容; 基于所述内容密钥和所述至少一个分发目标位置的授权密钥形成密钥链路; 以及将所述密钥链接附加到加密的内容。
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6.发明授权公开(公告)号：US07421081B2
公开(公告)日：2008-09-02
申请号：US10825913
申请日：2004-04-16
申请人： Jian Zhang , Ling Shao , Yun Zhang Pei , Dong Xie
发明人： Jian Zhang , Ling Shao , Yun Zhang Pei , Dong Xie
CPC分类号： G06F21/10
摘要： A method for generating hierarchical keys of digital assets, the digital assets are arranged as at least one tree structure for management, a root node of the tree structure represents the complete set of the digital assets, other group nodes represents sub-sets in each level of the digital assets respectively, and the nodes in the lowest level are leaf nodes, said method includes: generating the key of the root node; and starting with the key of the root node, using the key of a father node to compute level by level the keys of its child nodes according to a predetermined function, through to leaf nodes.
摘要翻译： 一种生成数字资产分级密钥的方法，将数字资产排列为至少一种用于管理的树结构，树结构的根节点表示数字资产的完整集合，其他组节点表示每个级别的子集 的数字资源，最下层的节点是叶节点，所述方法包括：生成根节点的密钥; 并从根节点的密钥开始，使用父节点的密钥根据预定功能逐级计算其子节点的密钥逐级到叶节点。
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公开(公告)号：US07890765B2
公开(公告)日：2011-02-15
申请号：US12123892
申请日：2008-05-20
申请人： Jian Zhang , Ling Shao , Dong Xie
发明人： Jian Zhang , Ling Shao , Dong Xie
IPC分类号： H04L9/32
CPC分类号： H04L63/12 , G06F21/645 , G06F21/725 , G06F2221/2151
摘要： Methods, apparatus and systems for generating a trusted digital time stamp as well as a public time source. It includes, an apparatus for receiving and recording public time information and a method for verifying a digital time stamp. A method for generating a trusted digital time stamp includes: obtaining a first time information and a corresponding random code from a public time source; and generating a digital time stamp using a first time information and random code. A method for verifying a digital time stamp includes: recording time information and corresponding random codes transmitted by a public time source; retrieving time information and a random code contained in the time stamp; and comparing a retrieved random code from the time stamp with one of the recorded random codes that corresponds to a time information in the time stamp, if they are consistent, the time stamp is determined to be trusted, otherwise the time stamp is determined to be not trusted.
摘要翻译： 用于生成可信数字时间戳以及公共时间源的方法，装置和系统。 它包括用于接收和记录公共时间信息的装置和用于验证数字时间戳的方法。 一种用于生成可信数字时间戳的方法包括：从公共时间源获得第一时间信息和相应的随机码; 以及使用第一时间信息和随机码产生数字时间戳。 一种用于验证数字时间戳的方法包括：记录由公共时间源发送的时间信息和相应的随机码; 检索时间信息和时间戳中包含的随机代码; 并且将来自时间戳的检索到的随机码与对应于时间标记中的时间信息的记录随机码之一进行比较，如果它们一致，则确定时间戳是可信的，否则时间戳被确定为 不信任
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公开(公告)号：US07516332B2
公开(公告)日：2009-04-07
申请号：US11082714
申请日：2005-03-17
申请人： Jian Zhang , Ling Shao , Dong Xie
发明人： Jian Zhang , Ling Shao , Dong Xie
IPC分类号： H04L9/00
CPC分类号： G06F21/10
摘要： This invention provides multi-key content processing systems and methods, for processing content with at least one distribution target position. Each of the distribution target positions corresponds to an authorization key. An example method includes the steps of: encrypting said content with a content key; forming a key link based on said content key and the authorization key of said at least one distribution target position; and attaching said key link to the encrypted content.
摘要翻译： 本发明提供了用于处理具有至少一个分发目标位置的内容的多键内容处理系统和方法。 分配目标位置中的每一个对应于授权密钥。 一种示例性方法包括以下步骤：用内容密钥加密所述内容; 基于所述内容密钥和所述至少一个分发目标位置的授权密钥形成密钥链路; 以及将所述密钥链接附加到加密的内容。
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公开(公告)号：US20080288779A1
公开(公告)日：2008-11-20
申请号：US12123892
申请日：2008-05-20
申请人： Jian Zhang , Ling Shao , Dong Xie
发明人： Jian Zhang , Ling Shao , Dong Xie
IPC分类号： H04L9/00
CPC分类号： H04L63/12 , G06F21/645 , G06F21/725 , G06F2221/2151
摘要： Methods, apparatus and systems for generating a trusted digital time stamp as well as a public time source. It includes, an apparatus for receiving and recording public time information and a method for verifying a digital time stamp. A method for generating a trusted digital time stamp includes: obtaining a first time information and a corresponding random code from a public time source; and generating a digital time stamp using a first time information and random code. A method for verifying a digital time stamp includes: recording time information and corresponding random codes transmitted by a public time source; retrieving time information and a random code contained in the time stamp; and comparing a retrieved random code from the time stamp with one of the recorded random codes that corresponds to a time information in the time stamp, if they are consistent, the time stamp is determined to be trusted, otherwise the time stamp is determined to be not trusted.
摘要翻译： 用于生成可信数字时间戳以及公共时间源的方法，装置和系统。 它包括用于接收和记录公共时间信息的装置和用于验证数字时间戳的方法。 一种用于生成可信数字时间戳的方法包括：从公共时间源获得第一时间信息和相应的随机码; 以及使用第一时间信息和随机码产生数字时间戳。 一种用于验证数字时间戳的方法包括：记录由公共时间源发送的时间信息和相应的随机码; 检索时间信息和时间戳中包含的随机代码; 并且将来自时间戳的检索到的随机码与对应于时间标记中的时间信息的记录随机码之一进行比较，如果它们一致，则确定时间戳是可信的，否则时间戳被确定为 不信任
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公开(公告)号：US20050223231A1
公开(公告)日：2005-10-06
申请号：US11034099
申请日：2005-01-12
申请人： Jian Zhang , Ling Shao , Dong Xie , Tsuyoshi Ide
发明人： Jian Zhang , Ling Shao , Dong Xie , Tsuyoshi Ide
CPC分类号： H04L63/12 , G06F21/645 , G06F21/725 , G06F2221/2151
摘要： Methods, apparatus and systems for generating a trusted digital time stamp as well as a public time source. It includes, an apparatus for receiving and recording public time information and a method for verifying a digital time stamp. A method for generating a trusted digital time stamp includes: obtaining a first time information and a corresponding random code from a public time source; and generating a digital time stamp using a first time information and random code. A method for verifying a digital time stamp includes: recording time information and corresponding random codes transmitted by a public time source; retrieving time information and a random code contained in the time stamp; and comparing a retrieved random code from the time stamp with one of the recorded random codes that corresponds to a time information in the time stamp, if they are consistent, the time stamp is determined to be trusted, otherwise the time stamp is determined to be not trusted.
摘要翻译： 用于生成可信数字时间戳以及公共时间源的方法，装置和系统。 它包括用于接收和记录公共时间信息的装置和用于验证数字时间戳的方法。 一种用于生成可信数字时间戳的方法包括：从公共时间源获得第一时间信息和相应的随机码; 以及使用第一时间信息和随机码产生数字时间戳。 一种用于验证数字时间戳的方法包括：记录由公共时间源发送的时间信息和相应的随机码; 检索时间信息和时间戳中包含的随机代码; 并且将来自时间戳的检索到的随机码与对应于时间标记中的时间信息的记录随机码之一进行比较，如果它们一致，则确定时间戳是可信的，否则时间戳被确定为 不信任
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