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1. 发明申请

US20100208898A1 MANAGING GROUP KEYS 有权
标题翻译：管理组织
公开(公告)号：US20100208898A1
公开(公告)日：2010-08-19
申请号：US12389217
申请日：2009-02-19
申请人： Tolga Acar , Josh Benaloh , Niels Thomas Ferguson , Carl M. Ellison , Mira Belenkiy , Duy Lan Nguyen
发明人： Tolga Acar , Josh Benaloh , Niels Thomas Ferguson , Carl M. Ellison , Mira Belenkiy , Duy Lan Nguyen
IPC分类号： H04L9/08
CPC分类号： H04L9/0891 , H04L9/0833
摘要： In an example, one or more cryptographic keys may be associated with a group. Any member of the group may use the key to encrypt and decrypt information, thereby allowing members of the group to share encrypted information. Domain controllers (DCs) maintain copies of the group's keys. The DCs may synchronize with each other, so that each DC may have a copy of the group's keys. Keys may have expiration dates, and any client connected to a DC may generate a new key when a key is nearing expiration. The various clients may create new keys at differing amounts of time before expiration on various DCs. DCs that store keys early thus may have time to propagate the newly-created keys through synchronization before other DCs are requested to store keys created by other clients. In this way, the creation of an excessive number of new keys may be avoided.
摘要翻译：在一个示例中，一个或多个加密密钥可以与组相关联。该组的任何成员可以使用密钥来加密和解密信息，从而允许该组的成员共享加密的信息。域控制器（DC）维护组的密钥副本。 DC可以彼此同步，使得每个DC可以具有组的密钥的副本。密钥可能有过期日期，连接到DC的任何客户端可能在密钥接近到期时生成新密钥。各种客户端可以在不同的时间段之前以不同的时间量创建新的密钥。因此，早期存储密钥的DC可能有时间通过同步传播新创建的密钥，而其他DC被请求存储由其他客户端创建的密钥。以这种方式，可以避免创建过多的新密钥。

2. 发明授权

US08325924B2 Managing group keys 有权
标题翻译：管理组密钥
公开(公告)号：US08325924B2
公开(公告)日：2012-12-04
申请号：US12389217
申请日：2009-02-19
申请人： Tolga Acar , Josh Benaloh , Niels Thomas Ferguson , Carl M. Ellison , Mira Belenkiy , Duy Lan Nguyen
发明人： Tolga Acar , Josh Benaloh , Niels Thomas Ferguson , Carl M. Ellison , Mira Belenkiy , Duy Lan Nguyen
IPC分类号： H04L9/00
CPC分类号： H04L9/0891 , H04L9/0833
摘要： In an example, one or more cryptographic keys may be associated with a group. Any member of the group may use the key to encrypt and decrypt information, thereby allowing members of the group to share encrypted information. Domain controllers (DCs) maintain copies of the group's keys. The DCs may synchronize with each other, so that each DC may have a copy of the group's keys. Keys may have expiration dates, and any client connected to a DC may generate a new key when a key is nearing expiration. The various clients may create new keys at differing amounts of time before expiration on various DCs. DCs that store keys early thus may have time to propagate the newly-created keys through synchronization before other DCs are requested to store keys created by other clients. In this way, the creation of an excessive number of new keys may be avoided.
摘要翻译：在一个示例中，一个或多个加密密钥可以与组相关联。该组的任何成员可以使用密钥来加密和解密信息，从而允许该组的成员共享加密的信息。域控制器（DC）维护组的密钥副本。 DC可以彼此同步，使得每个DC可以具有组的密钥的副本。密钥可能有过期日期，连接到DC的任何客户端可能在密钥接近到期时生成新密钥。各种客户端可以在不同的时间段之前以不同的时间量创建新的密钥。因此，早期存储密钥的DC可能有时间通过同步传播新创建的密钥，而其他DC被请求存储由其他客户端创建的密钥。以这种方式，可以避免创建过多的新密钥。

3. 发明申请

US20120324233A1 Verifying Requests for Access to a Service Provider Using an Authentication Component 有权
标题翻译：验证使用身份验证组件访问服务提供商的请求
公开(公告)号：US20120324233A1
公开(公告)日：2012-12-20
申请号：US13160831
申请日：2011-06-15
申请人： Duy Lan Nguyen , Tolga Acar
发明人： Duy Lan Nguyen , Tolga Acar
IPC分类号： H04L9/32
CPC分类号： H04L63/0823 , G06Q20/341 , H04L9/0866 , H04L9/3073 , H04L9/3234 , H04L9/3268 , H04L9/3281 , H04L63/0435 , H04L63/0442 , H04L63/061 , H04L63/0853 , H04L2209/84
摘要： The subject disclosure is directed towards processing requests for accessing a service provider. After examining at least one security token, a public key and a portion of attribute information are identified. An authentication component is accessed and applied to the public key. A unique user identifier is employed in generating the public key. The authentication component is generated using information from at least one revoked security token or at least one valid security token. The authentication component is configured to prove validity of the at least one security token.
摘要翻译：主题公开涉及处理访问服务提供商的请求。在检查至少一个安全令牌之后，识别公钥和属性信息的一部分。访问认证组件并将其应用于公钥。在生成公钥时采用唯一的用户标识符。使用来自至少一个撤销的安全令牌或至少一个有效安全令牌的信息生成认证组件。认证组件被配置为证明至少一个安全性令牌的有效性。

4. 发明授权

US09722776B2 Homomorphic signatures and network coding signatures 有权
公开(公告)号：US09722776B2
公开(公告)日：2017-08-01
申请号：US13529332
申请日：2012-06-21
申请人： Duy Lan Nguyen , Tolga Acar , Avradip Mandal
发明人： Duy Lan Nguyen , Tolga Acar , Avradip Mandal
IPC分类号： H04L9/00 , H04L9/30 , H04L9/32
CPC分类号： H04L9/008 , H04L9/3073 , H04L9/3247
摘要： The subject disclosure is directed towards a technology by which data is securely distributed using a homomorphic signature scheme and homomorphic network coding signature schemes. A homomorphic signature scheme for signing the data is based upon binary pairing with standard prime order groups. Sets of data are signed based upon dividing a larger block of data into smaller blocks, and separately signing each smaller block. The smaller blocks may be distributed to nodes of a network topology that are configured for network coding. In one alternative, the homomorphic signature scheme protects against changes to the block identifier. Proof data may be provided independent of a random oracle, may be provided by providing parameters for verification in a Groth-Sahai proof system, or may be provided by providing parameters for verification independent of a Groth-Sahai proof system.

5. 发明授权

US09264237B2 Verifying requests for access to a service provider using an authentication component 有权
标题翻译：使用身份验证组件验证访问服务提供商的请求
公开(公告)号：US09264237B2
公开(公告)日：2016-02-16
申请号：US13160831
申请日：2011-06-15
申请人： Duy Lan Nguyen , Tolga Acar
发明人： Duy Lan Nguyen , Tolga Acar
IPC分类号： H04L21/00 , H04L9/32 , G06Q20/34
CPC分类号： H04L63/0823 , G06Q20/341 , H04L9/0866 , H04L9/3073 , H04L9/3234 , H04L9/3268 , H04L9/3281 , H04L63/0435 , H04L63/0442 , H04L63/061 , H04L63/0853 , H04L2209/84
摘要： The subject disclosure is directed towards processing requests for accessing a service provider. After examining at least one security token, a public key and a portion of attribute information are identified. An authentication component is accessed and applied to the public key. A unique user identifier is employed in generating the public key. The authentication component is generated using information from at least one revoked security token or at least one valid security token. The authentication component is configured to prove validity of the at least one security token.
摘要翻译：主题公开涉及处理访问服务提供商的请求。在检查至少一个安全令牌之后，识别公钥和属性信息的一部分。访问认证组件并将其应用于公钥。在生成公钥时采用唯一的用户标识符。使用来自至少一个撤销的安全令牌或至少一个有效安全令牌的信息生成认证组件。认证组件被配置为证明至少一个安全性令牌的有效性。

6. 发明申请

US20130346755A1 Homomorphic Signatures and Network Coding Signatures 有权
标题翻译：同态签名和网络编码签名
公开(公告)号：US20130346755A1
公开(公告)日：2013-12-26
申请号：US13529332
申请日：2012-06-21
申请人： Duy Lan Nguyen , Tolga Acar , Avradip Mandal
发明人： Duy Lan Nguyen , Tolga Acar , Avradip Mandal
IPC分类号： H04L9/32
CPC分类号： H04L9/008 , H04L9/3073 , H04L9/3247
摘要： The subject disclosure is directed towards a technology by which data is securely distributed using a homomorphic signature scheme and homomorphic network coding signature schemes. A homomorphic signature scheme for signing the data is based upon binary pairing with standard prime order groups. Sets of data are signed based upon dividing a larger block of data into smaller blocks, and separately signing each smaller block. The smaller blocks may be distributed to nodes of a network topology that are configured for network coding. In one alternative, the homomorphic signature scheme protects against changes to the block identifier. Proof data may be provided independent of a random oracle, may be provided by providing parameters for verification in a Groth-Sahai proof system, or may be provided by providing parameters for verification independent of a Groth-Sahai proof system.
摘要翻译：主题公开涉及使用同态签名方案和同态网络编码签名方案来安全地分发数据的技术。用于签署数据的同态签名方案基于与标准素数订单组的二进制配对。基于将更大的数据块划分成更小的块，并且分别签署每个更小的块，来对数据集进行签名。较小的块可以被分配到被配置用于网络编码的网络拓扑的节点。在一个替代方案中，同态签名方案保护不改变块标识符。证明数据可以独立于随机的oracle提供，可以通过在Groth-Sahai证明系统中提供用于验证的参数来提供，或者可以通过提供独立于Groth-Sahai证明系统的验证参数来提供证明数据。

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