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1. 发明授权

US09660813B1 Dynamic privacy management for communications of clients in privacy-preserving groups 有权
公开(公告)号：US09660813B1
公开(公告)日：2017-05-23
申请号：US13431214
申请日：2012-03-27
申请人： Marten Erik van Dijk , Eyal Kolman , Roy Hodgman
发明人： Marten Erik van Dijk , Eyal Kolman , Roy Hodgman
IPC分类号： H04L9/32 , G06F21/62 , H04L29/06
CPC分类号： H04L9/3255 , G06F21/6254 , H04L9/3247 , H04L63/0853 , H04L67/1044
摘要： A server is configured to communicate with a group of clients over a network in one embodiment. The server maps the group of clients into a plurality of subgroups of bounded size, communicates to a given one of the clients information identifying the particular subgroup to which that client belongs as well as the other clients in that subgroup. The given client utilizes the communicated information to generate a ring signature over the corresponding subgroup of clients based on the communicated information. The subgroup size may be bounded to a minimum size and a maximum size in accordance with a variable privacy parameter. The server can increase or decrease the value of the parameter in order to provide respective increased or decreased privacy to the clients, by making it respectively more or less difficult to determine which client in a corresponding one of the subgroups produced the received ring signature.

2. 发明授权

US09015231B1 Distributed anonymized communications 有权
标题翻译：分布式匿名通信
公开(公告)号：US09015231B1
公开(公告)日：2015-04-21
申请号：US13431231
申请日：2012-03-27
申请人： Roy Hodgman , Marten Erik van Dijk , Eyal Kolman
发明人： Roy Hodgman , Marten Erik van Dijk , Eyal Kolman
IPC分类号： G06F15/16 , H04W12/08 , H04W12/02
CPC分类号： H04W12/08 , H04W12/02
摘要： A server is configured to communicate with a group of clients over a network. Each of the clients obtains a corresponding informational message comprising security-related information such as an indication of compromise (IOC), inserts noise in the information message to generate an anonymized message, and communicates the anonymized message to the server. The anonymized messages communicated by the respective clients to the server may be configured so as to prevent the server from identifying any individual client associated with a particular one of the anonymized messages, while also allowing the server to extract from the anonymized messages collectively one or more characteristics of the underlying informational messages. A given client may insert noise in an informational message by, for example, selecting a noise value from a specified range of noise values, and combining the informational message and the selected noise value to generate the anonymized message.
摘要翻译：服务器被配置为通过网络与一组客户端进行通信。每个客户端获得包括诸如妥协指示（IOC）之类的安全相关信息的相应信息性消息，在信息消息中插入噪声以生成匿名消息，并将匿名消息传送到服务器。可以将由相应客户端传送到服务器的匿名消息配置成防止服务器识别与特定一个匿名消息相关联的任何个人客户端，同时还允许服务器从匿名消息中抽出一个或多个底层信息消息的特征。给定的客户端可以通过例如从指定的噪声值范围中选择噪声值并将信息消息和所选择的噪声值组合以生成匿名消息来在信息消息中插入噪声。

3. 发明授权

US08819769B1 Managing user access with mobile device posture 有权
标题翻译：使用移动设备状态管理用户访问
公开(公告)号：US08819769B1
公开(公告)日：2014-08-26
申请号：US13435606
申请日：2012-03-30
申请人： Marten van Dijk , Kevin D. Bowers , Samuel Curry , Sean P. Doyle , Eyal Kolman , Nikolaos Triandopoulos , Riaz Zolfonoon
发明人： Marten van Dijk , Kevin D. Bowers , Samuel Curry , Sean P. Doyle , Eyal Kolman , Nikolaos Triandopoulos , Riaz Zolfonoon
IPC分类号： H04L29/06
CPC分类号： H04L63/0876 , H04L67/303
摘要： An improved technique for managing access of a user of a computing machine to a remote network collects device posture information about the user's mobile device. The mobile device runs a soft token, and the collected posture information pertains to various aspects of the mobile device, such as the mobile device's hardware, software, environment, and/or users, for example. The server applies the collected device posture information along with token codes from the soft token in authenticating the user to the remote network.
摘要翻译：用于管理计算机的用户对远程网络的访问的改进技术收集关于用户的移动设备的设备姿态信息。移动设备运行软令牌，并且收集的姿态信息涉及例如移动设备的各个方面，例如移动设备的硬件，软件，环境和/或用户。服务器将所收集的设备姿态信息以及来自软令牌的令牌代码应用于将用户认证到远程网络。

4. 发明授权

US08856923B1 Similarity-based fraud detection in adaptive authentication systems 有权
标题翻译：自适应认证系统中基于相似性的欺诈检测
公开(公告)号：US08856923B1
公开(公告)日：2014-10-07
申请号：US13537958
申请日：2012-06-29
申请人： Eyal Kolman , Alon Kaufman , Yael Villa
发明人： Eyal Kolman , Alon Kaufman , Yael Villa
IPC分类号： G06Q20/00 , G06Q20/40
CPC分类号： G06Q20/4016 , G06F21/554 , G06N7/005
摘要： Similarity-based fraud detection techniques are provided in adaptive authentication systems. A method is provided for determining if an event is fraudulent by obtaining a plurality of tagged events and one or more untagged events, wherein the tagged events indicate a likelihood of whether the corresponding event was fraudulent; constructing a graph, wherein each node in the graph represents an event and has a value representing a likelihood of whether the corresponding event was fraudulent and wherein similar transactions are connected via weighted links; diffusing through weights in the graph to assign values to nodes such that neighbors of nodes having non-zero values receive similar values as the neighbors; and classifying whether at least one of the one or more untagged events is fraudulent based on the assigned values.
摘要翻译：在自适应认证系统中提供了基于相似性的欺诈检测技术。提供一种用于通过获得多个标记事件和一个或多个未标记事件来确定事件是否是欺诈的方法，其中标记事件指示相应事件是否是欺诈性的可能性; 构建图形，其中图中的每个节点表示事件，并且具有表示相应事件是否为欺诈的可能性的值，并且其中相似的事务通过加权链接连接; 通过图中的权重扩散以将值分配给节点，使得具有非零值的节点的邻居接收与邻居相似的值; 以及基于所分配的值来分类所述一个或多个未标记事件中的至少一个是否是欺诈性的。

5. 发明申请

US20120155663A1 FAST SPEAKER HUNTING IN LAWFUL INTERCEPTION SYSTEMS 审中-公开
标题翻译：快速扬声器在法律障碍系统中进行搜索
公开(公告)号：US20120155663A1
公开(公告)日：2012-06-21
申请号：US12969622
申请日：2010-12-16
申请人： Adam WEINBERG , Irit Opher , Ruth Aloni-Lavi , Eyal Kolman , Ido Azriel
发明人： Adam WEINBERG , Irit Opher , Ruth Aloni-Lavi , Eyal Kolman , Ido Azriel
IPC分类号： H04R29/00
CPC分类号： G10L17/00 , G10L17/26 , H04L63/304 , H04M3/2281 , H04M2201/405 , H04M2201/41 , H04M2203/301 , H04R27/00 , H04S2400/15
摘要： A method for spotting an interaction in which a target speaker associated with a current index or current interaction speaks, the method comprising: receiving an interaction and an index associated with the interaction, the index associated with additional data; receiving the current interaction or current index associated with the target speaker; obtaining current data associated with the current interaction or current index; filtering the index using the additional data, in accordance with the current data associated with the current interaction or current index, and obtaining a matching index; and comparing the current index or a representation of the current interaction with the matching index to obtain a target speaker index.
摘要翻译：用于发现与当前索引或当前交互相关联的目标说话者的交互的方法，所述方法包括：接收与所述交互相关联的交互和与附加数据相关联的索引; 接收与目标扬声器相关联的当前交互或当前索引; 获取与当前交互或当前索引相关联的当前数据; 根据与当前交互或当前索引相关联的当前数据，使用附加数据过滤索引，并获得匹配索引; 并且将当前索引或当前交互的表示与匹配索引进行比较以获得目标说话者索引。

6. 发明授权

US09906511B1 Secure impersonation detection 有权
公开(公告)号：US09906511B1
公开(公告)日：2018-02-27
申请号：US14753458
申请日：2015-06-29
申请人： Eyal Kolman , Alon Kaufman , Yehuda Lindell , Binyamin Pinkas
发明人： Eyal Kolman , Alon Kaufman , Yehuda Lindell , Binyamin Pinkas
IPC分类号： H04L29/06 , H04L9/32
CPC分类号： H04L63/08 , G06F2221/2111 , H04L9/3242 , H04L63/0428 , H04L63/10
摘要： Techniques of performing impersonation detection involve using encrypted access request data. Along these lines, an impersonation detection server stores historical access request data only in encrypted form and has no way to decrypt such data. When a new access request is received by a client, the client sends the username associated with the request to the server, which in turns sends the client the encrypted historical access request data. In addition, the server sends the client instructions to perform impersonation detection. The client then carries out the instructions based on the encrypted historical access request data and data contained in the new access request.

7. 发明授权

US09729525B1 Secure data analytics 有权
公开(公告)号：US09729525B1
公开(公告)日：2017-08-08
申请号：US14753453
申请日：2015-06-29
申请人： Eyal Kolman , Alon Kaufman
发明人： Eyal Kolman , Alon Kaufman
IPC分类号： H04L29/06 , G06F17/30
CPC分类号： G06F17/30864 , G06F17/30477 , G06F21/6227 , G06F21/6245 , H04L63/0428
摘要： Techniques of performing queries involve adapting a query to whether query data is encrypted. Along these lines, a data sensitivity policy defines which types of data is encrypted prior to storage in a data analytics database and which other types of data remain unencrypted. When a client formulates a query, the client encrypts a query input and then conceals the encrypted query input and query function to form concealed query logic. When the concealed query logic is received by a data analytics server, the data analytics server determines whether the query data to be input into the concealed query logic is encrypted or unencrypted. If the query data is unencrypted, then the concealed query logic is unconcealed and the query input unencrypted so that the data analytics server may evaluate the query function without concealment to produce a query result.

8. 发明授权

US08875267B1 Active learning-based fraud detection in adaptive authentication systems 有权
标题翻译：自适应认证系统中主动学习型欺诈检测
公开(公告)号：US08875267B1
公开(公告)日：2014-10-28
申请号：US13538120
申请日：2012-06-29
申请人： Eyal Kolman , Alon Kaufman , Yael Villa
发明人： Eyal Kolman , Alon Kaufman , Yael Villa
IPC分类号： G06F21/00
CPC分类号： G06F21/31 , G06N7/005 , H04L63/08
摘要： Active learning-based fraud detection techniques are provided in adaptive authentication systems. An authentication request from an authentication requestor is processed by receiving the authentication request from the authentication requester; comparing current data for the user associated with the user identifier with historical data for the user; generating an adaptive authentication result based on the comparison indicating a likelihood current user data is associated with a fraudulent user; and performing one or more additional authentication operations to improve learning if the request satisfies one or more predefined non-risk based criteria. The predefined non-risk based criteria comprises, for example, (i) the request receiving a riskiness score below a threshold based on current data and wherein the request was expected to have a risk score above a threshold, or (ii) the request being in a bucket having a number of tagged events below a threshold.
摘要翻译：在自适应认证系统中提供了基于学习的主动欺诈检测技术。来自认证请求者的认证请求通过从认证请求者接收认证请求来处理; 将与用户标识符相关联的用户的当前数据与用户的历史数据进行比较; 基于表示可能性当前用户数据与欺诈用户相关联的比较来生成自适应认证结果; 以及如果所述请求满足一个或多个预定义的基于非风险的准则，则执行一个或多个附加认证操作以改善学习。预定义的基于非风险的标准包括例如（i）基于当前数据接收风险评分低于阈值的请求，并且其中预期该请求具有高于阈值的风险评分，或者（ii）请求为在具有低于阈值的多个标记事件的桶中。

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