专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明授权

US08839381B2 Revoking delegatable anonymous credentials 有权
标题翻译：撤销可委托的匿名凭据
公开(公告)号：US08839381B2
公开(公告)日：2014-09-16
申请号：US12961505
申请日：2010-12-07
申请人： Lan Nguyen , Tolga Acar
发明人： Lan Nguyen , Tolga Acar
IPC分类号： H04L29/06 , H04L9/32 , H04L9/08
CPC分类号： H04L9/0891 , H04L9/3218 , H04L2209/38 , H04L2209/42
摘要： The claimed subject matter provides a method for revoking delegatable anonymous credentials. The method includes receiving a request to revoke an anonymous credential. The anonymous credential may be representative of an ability to prove non-membership in an accumulator for a first entity. The method also includes revoking the anonymous credential from the first entity in response to the request to revoke the anonymous credential. Additionally, the method includes revoking the anonymous credential from a second entity in response to the request to revoke the anonymous credential. The first entity delegates the anonymous credential to the second entity.
摘要翻译：所要求保护的主题提供了撤销可委托匿名凭证的方法。该方法包括接收撤销匿名凭证的请求。匿名凭证可以代表证明第一实体的累加器的不隶属的能力。该方法还包括响应于撤销匿名凭证的请求，从第一实体撤销匿名凭证。此外，该方法包括响应于撤销匿名凭证的请求，从第二实体撤销匿名凭证。第一个实体将匿名凭证委托给第二个实体。

22. 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。

23. 发明申请

US20100306554A1 DISTRIBUTED KEY ENCRYPTION IN SERVERS 有权
标题翻译：服务器中的分布式密钥加密
公开(公告)号：US20100306554A1
公开(公告)日：2010-12-02
申请号：US12471474
申请日：2009-05-26
申请人： Fabian Nunez-Tejerina , Jeffrey B. Kay , Robert C. Fruth , Naveen A. Palavalli , Ramesh Chinta , Tolga Acar
发明人： Fabian Nunez-Tejerina , Jeffrey B. Kay , Robert C. Fruth , Naveen A. Palavalli , Ramesh Chinta , Tolga Acar
IPC分类号： G06F12/14
CPC分类号： G06F21/6209 , H04L9/006 , H04L9/3263 , H04L63/0823
摘要： Architecture that stores specific passwords on behalf of users, and encrypts the passwords using encryption keys managed by a distributed key management system. The encryption keys are stored in a directory service (e.g., hierarchical) in an area that is inaccessible by selected entities (e.g., administrative users) having superior permissions such as supervisory administrators, but accessible to the account components that need to access the unencrypted passwords. The distributed key management system makes the encryption key stored in the directory service available to all hardware/software components that need the key to encrypt or decrypt the passwords.
摘要翻译：代表用户存储特定密码的体系结构，并使用由分布式密钥管理系统管理的加密密钥加密密码。加密密钥存储在具有诸如监督管理员等优越许可的选定实体（例如，管理用户）无法访问的区域中的目录服务（例如，分级）中，但是对于需要访问未加密密码的帐户组件可访问。分布式密钥管理系统使存储在目录服务中的加密密钥可用于需要密钥的所有硬件/软件组件来加密或解密密码。

24. 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。

25. 发明申请

US20080256151A1 WEIGHTED ENTROPY POOL SERVICE 有权
标题翻译：加权入场服务
公开(公告)号：US20080256151A1
公开(公告)日：2008-10-16
申请号：US11690758
申请日：2007-03-23
申请人： Tolga Acar , Daniel B. Shumow , Andrew S. Tucker , Carl M. Ellison
发明人： Tolga Acar , Daniel B. Shumow , Andrew S. Tucker , Carl M. Ellison
IPC分类号： G06F7/58
CPC分类号： G06F7/58
摘要： A weighted entropy pool service system and methods. Weights are associated with entropy sources and are used to estimate a quantity of entropy contained in data from the entropy sources. An interface is optionally provided to facilitate connecting user entropy sources to the entropy pool service. The quantity of entropy contained in the system is tracked as entropy is distributed to entropy consumers. A persistent entropy pool state file stores entropy across system restarts.
摘要翻译：一种加权熵池服务系统及方法。权重与熵源相关联，用于估计来自熵源的数据中包含的熵量。可选地提供接口以便于将用户熵源连接到熵池服务。随着熵被分配给熵消费者，系统中包含的熵量被跟踪。持续熵池状态文件在系统重新启动之间存储熵。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式