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1. 发明授权

US07933985B2 System and method for detecting and preventing denial of service attacks in a communications system 有权
标题翻译：用于在通信系统中检测和防止拒绝服务攻击的系统和方法
公开(公告)号：US07933985B2
公开(公告)日：2011-04-26
申请号：US10917771
申请日：2004-08-13
申请人： Krishna Kurapati , Sachin Joglekar
发明人： Krishna Kurapati , Sachin Joglekar
IPC分类号： G06F15/173 , G06F21/06
CPC分类号： H04L63/1458 , H04L2463/141
摘要： A method and system are provided for use in detecting and preventing attacks in a communications network. In one example, the method includes calculating first and second traffic volumes based on messages received at a first time and a second time, respectively. An average acceleration is calculated based on the first and second traffic volumes, and the method identifies whether the average acceleration has crossed a threshold. The messages are serviced only if the average acceleration has not crossed the threshold.
摘要翻译：提供了一种用于检测和防止通信网络中的攻击的方法和系统。在一个示例中，该方法包括基于分别在第一时间和第二时间接收到的消息来计算第一和第二业务量。基于第一和第二业务量计算平均加速度，并且该方法识别平均加速度是否已经超过阈值。仅当平均加速度没有超过阈值时，消息才被服务。

2. 发明申请

US20070121596A1 System and method for providing network level and nodal level vulnerability protection in VoIP networks 有权
标题翻译：在VoIP网络中提供网络级和节点级漏洞保护的系统和方法
公开(公告)号：US20070121596A1
公开(公告)日：2007-05-31
申请号：US11502244
申请日：2006-08-09
申请人： Krishna Kurapati , Sachin Joglekar , Venkatesan Iyengar Prasanna , Satyam Tyagi , Guru Thodime , Pravin Khandelwal , Chandrasekhar Manchenella , Mukesh Singh , Raghavendra Thodime
发明人： Krishna Kurapati , Sachin Joglekar , Venkatesan Iyengar Prasanna , Satyam Tyagi , Guru Thodime , Pravin Khandelwal , Chandrasekhar Manchenella , Mukesh Singh , Raghavendra Thodime
IPC分类号： H04L12/66
CPC分类号： H04L63/0823 , H04L29/06027 , H04L63/10 , H04L63/1458 , H04L63/166 , H04L65/1079 , H04L2463/141 , H04M3/436 , H04M7/0078
摘要： The present invention provides a system, method and apparatus for providing network level and nodal level vulnerability protection in VoIP networks by receiving a communication, filtering the received communication using three or more stages selected from the group comprising a media protection and filtering plane, a policy based filtering plane, a signature based filtering plane, a protocol anomaly detection and filtering plane and a behavioral learning based filtering plane, and either allowing or denying the received communication based the filtering step. The stages are applicable to one or more protocols including SIP, IMS, UMA, H.248, H.323, RTP, CSTA/XML or a combination thereof. In addition, the stages can be implemented within a single device or are distributed across a network (e.g., SIP network, a UMA network, an IMS network or a combination thereof).
摘要翻译：本发明提供一种用于通过接收通信来在VoIP网络中提供网络级和节点级漏洞保护的系统，方法和装置，使用从包括媒体保护和过滤平面的组中选择的三个或多个阶段来过滤所接收的通信，策略基于签名的过滤平面，协议异常检测和过滤平面以及基于行为学习的过滤平面，以及基于过滤步骤允许或拒绝所接收的通信。这些阶段适用于一种或多种协议，包括SIP，IMS，UMA，H.248，H.323，RTP，CSTA / XML或其组合。此外，这些级可以在单个设备内实现，或者跨网络分布（例如，SIP网络，UMA网络，IMS网络或其组合）。

3. 发明申请

US20110173697A1 SYSTEM AND METHOD FOR DETECTING AND PREVENTING DENIAL OF SERVICE ATTACKS IN A COMMUNICATIONS SYSTEM 有权
标题翻译：用于检测和防止通信系统中服务攻击的问题的系统和方法
公开(公告)号：US20110173697A1
公开(公告)日：2011-07-14
申请号：US13052959
申请日：2011-03-21
申请人： Krishna Kurapati , Sachin Joglekar
发明人： Krishna Kurapati , Sachin Joglekar
IPC分类号： G06F11/00
CPC分类号： H04L63/1458 , H04L2463/141
摘要： A method and system are provided for use in detecting and preventing attacks in a communications network. In one example, the method includes calculating first and second traffic volumes based on messages received at a first time and a second time, respectively. An average acceleration is calculated based on the first and second traffic volumes, and the method identifies whether the average acceleration has crossed a threshold. The messages are serviced only if the average acceleration has not crossed the threshold.
摘要翻译：提供了一种用于检测和防止通信网络中的攻击的方法和系统。在一个示例中，该方法包括基于分别在第一时间和第二时间接收到的消息来计算第一和第二业务量。基于第一和第二业务量计算平均加速度，并且该方法识别平均加速度是否已经超过阈值。仅当平均加速度没有超过阈值时，消息才被服务。

4. 发明申请

US20060036727A1 System and method for detecting and preventing denial of service attacks in a communications system 有权
公开(公告)号：US20060036727A1
公开(公告)日：2006-02-16
申请号：US10917771
申请日：2004-08-13
申请人： Krishna Kurapati , Sachin Joglekar
发明人： Krishna Kurapati , Sachin Joglekar
IPC分类号： G06F15/173 , H04L9/32
CPC分类号： H04L63/1458 , H04L2463/141
摘要： A method and system are provided for use in detecting and preventing attacks in a communications network. In one example, the method includes calculating first and second traffic volumes based on messages received at a first time and a second time, respectively. An average acceleration is calculated based on the first and second traffic volumes, and the method identifies whether the average acceleration has crossed a threshold. The messages are serviced only if the average acceleration has not crossed the threshold.

5. 发明申请

US20070076853A1 System, method and apparatus for classifying communications in a communications system 有权
标题翻译：用于对通信系统中的通信进行分类的系统，方法和装置
公开(公告)号：US20070076853A1
公开(公告)日：2007-04-05
申请号：US11521427
申请日：2006-09-14
申请人： Krishna Kurapati , Nathaniel Ayewah
发明人： Krishna Kurapati , Nathaniel Ayewah
IPC分类号： H04M1/24
CPC分类号： H04M3/436 , H04L29/06027 , H04L51/12 , H04L63/1458 , H04L65/1079 , H04M7/0078
摘要： The present invention provides a system, method and apparatus for automatically classifying voice communications, such as voice messages and phone calls in prerecorded voicemails (one speaker) and two-way conversations, as either spam or legitimate signals in a communications system (e.g., SIP, IMS, UMA, etc.). More specifically, the present invention classifies a voice communication session by receiving one or more voice communication packets associated with the voice communication session, extracting one or more properties from the received voice communication packets and classifying the voice communication session based on the extracted properties. The present invention can also be implemented as a computer program embodied on a computer readable medium wherein each step is performed by one or more code segments.
摘要翻译：本发明提供一种用于在预先记录的语音邮件（一个扬声器）和双向对话中将语音通信（例如语音消息和电话）自动分类为通信系统中的垃圾邮件或合法信号的系统，方法和装置（例如，SIP ，IMS，UMA等）。更具体地，本发明通过接收与语音通信会话相关联的一个或多个语音通信分组来分类语音通信会话，从接收到的语音通信分组中提取一个或多个属性，并且基于所提取的属性对语音通信会话进行分类。本发明还可以实现为体现在计算机可读介质上的计算机程序，其中每个步骤由一个或多个代码段执行。

6. 发明授权

US08407342B2 System and method for detecting and preventing denial of service attacks in a communications system 有权
标题翻译：用于在通信系统中检测和防止拒绝服务攻击的系统和方法
公开(公告)号：US08407342B2
公开(公告)日：2013-03-26
申请号：US13052959
申请日：2011-03-21
申请人： Krishna Kurapati , Sachin Purushottam Joglekar
发明人： Krishna Kurapati , Sachin Purushottam Joglekar
IPC分类号： G06F15/173
CPC分类号： H04L63/1458 , H04L2463/141
摘要： A method and system are provided for use in detecting and preventing attacks in a communications network. In one example, the method includes calculating first and second traffic volumes based on messages received at a first time and a second time, respectively. An average acceleration is calculated based on the first and second traffic volumes, and the method identifies whether the average acceleration has crossed a threshold. The messages are serviced only if the average acceleration has not crossed the threshold.
摘要翻译：提供了一种用于检测和防止通信网络中的攻击的方法和系统。在一个示例中，该方法包括基于分别在第一时间和第二时间接收到的消息来计算第一和第二业务量。基于第一和第二业务量计算平均加速度，并且该方法识别平均加速度是否已经超过阈值。仅当平均加速度没有超过阈值时，消息才被服务。

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