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1. 发明授权

US11526605B2 Extraction device, extraction method, recording medium, and detection device 有权
公开(公告)号：US11526605B2
公开(公告)日：2022-12-13
申请号：US17042622
申请日：2018-04-27
申请人： NEC Corporation
发明人： Takashi Konashi , Satoru Yamano
IPC分类号： G06F21/55 , H04L9/36
摘要： An extraction device includes: at least one memory configured to store instructions; and at least one processor configured to execute the instructions to: sort each set of frames that have the same identifier associated with a node, into frames maintaining a cycle and frames out of the cycle; and extract, as an event rule, a feature of a bit change in a data field related to an event occurrence, from the frames that have the same identifier and are out of the cycle.

2. 发明授权

US11336618B2 Security apparatus, attack detection method, and storage medium 有权
公开(公告)号：US11336618B2
公开(公告)日：2022-05-17
申请号：US17152286
申请日：2021-01-19
申请人： PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
发明人： Manabu Maeda , Jun Anzai , Yoshihiro Ujiie , Masato Tanabe , Takeshi Kishikawa
IPC分类号： H04L29/06 , B60R16/023 , G06F21/55 , H04L12/28 , H04L12/40 , G06F21/85 , H04L9/36 , H04L67/12
摘要： A security apparatus includes a receiver that receives a frame front at least one network, a parameter storage that stores at least one examination parameter defining a content of an examination on a frame, and processing circuitry that performs operations. The operations include judging whether a predetermined condition is satisfied for the frame received by the receiver. When the predetermined condition is satisfied, updating the stored at least one examination parameter, and when the predetermined condition is not satisfied, not updating the stored at least one examination parameter. The operations also include executing an examination, based on the stored at least one examination parameter, as to whether the frame received by the receiver is an attack frame, and performing a process depending on a result of the execution of the examination such that an influence of an attack frame on at least one electronic control unit is suppressed.

3. 发明授权

US11307253B2 Self-test of an asynchronous circuit 有权
公开(公告)号：US11307253B2
公开(公告)日：2022-04-19
申请号：US17136198
申请日：2020-12-29
申请人： Cryptography Research, Inc.
发明人： Matthew Pond Baker
IPC分类号： G01R31/319 , H04L9/36 , G06F1/06 , G01R31/3187 , G01R31/317
摘要： An indication of an operating mode of an asynchronous circuit may be received. A determination may be made as to whether the operating mode of the asynchronous circuit corresponds to a self-test of the asynchronous circuit. In response to determining that the operating mode of the asynchronous circuit corresponds to the self-test, a first clock signal may be provided to a first portion of a self-test component in a feedback path of the asynchronous circuit and a second clock signal may be provided to a second portion of the self-test component in the feedback path of the asynchronous circuit. Furthermore, a test value may be generated based on the first clock signal and the second clock signal.

4. 发明申请

US20210144124A1 SECURITY APPARATUS, ATTACK DETECTION METHOD, AND STORAGE MEDIUM 有权
公开(公告)号：US20210144124A1
公开(公告)日：2021-05-13
申请号：US17152286
申请日：2021-01-19
申请人： PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
发明人： Manabu MAEDA , Jun ANZAI , Yoshihiro UJIIE , Masato TANABE , Takeshi KISHIKAWA
IPC分类号： H04L29/06 , B60R16/023 , G06F21/55 , H04L12/28 , H04L12/40 , G06F21/85 , H04L9/36
摘要： A security apparatus includes a receiver that receives a frame front at least one network, a parameter storage that stores at least one examination parameter defining a content of an examination on a frame, and processing circuitry that performs operations. The operations include judging whether a predetermined condition is satisfied for the frame received by the receiver. When the predetermined condition is satisfied, updating the stored at least one examination parameter, and when the predetermined condition is not satisfied, not updating the stored at least one examination parameter. The operations also include executing an examination, based on the stored at least one examination parameter, as to whether the frame received by the receiver is an attack frame, and performing a process depending on a result of the execution of the examination such that an influence of an attack frame on at least one electronic control unit is suppressed.

5. 发明申请

US20180299509A1 SELF-TEST OF AN ASYNCHRONOUS CIRCUIT 审中-公开
公开(公告)号：US20180299509A1
公开(公告)日：2018-10-18
申请号：US15903980
申请日：2018-02-23
申请人： Cryptography Research, Inc.
发明人： Matthew Pond Baker
IPC分类号： G01R31/319 , H04L9/36 , G01R31/3187 , G06F1/06
摘要： An indication of an operating mode of an asynchronous circuit may be received. A determination may be made as to whether the operating mode of the asynchronous circuit corresponds to a self-test of the asynchronous circuit. In response to determining that the operating mode of the asynchronous circuit corresponds to the self-test, a first clock signal may be provided to a first portion of a self-test component in a feedback path of the asynchronous circuit and a second clock signal may be provided to a second portion of the self-test component in the feedback path of the asynchronous circuit. Furthermore, a test value may be generated based on the first clock signal and the second clock signal.

6. 发明申请

US20170288854A1 ANALYSIS SYSTEM, ANALYSIS METHOD, AND STORAGE MEDIUM 审中-公开
公开(公告)号：US20170288854A1
公开(公告)日：2017-10-05
申请号：US15510742
申请日：2015-09-17
申请人： NEC Corporation
发明人： Masato YAMANE , Yuki ASHINO , Masafumi WATANABE
IPC分类号： H04L9/00 , H04L9/36 , H04L29/06 , H04L9/08 , H04L9/14
摘要： Provided is an analysis system including a memory acquisition unit that is configured to acquire at least part of data stored in a memory unit in an information communication apparatus including a computing unit and the memory unit; a communication processing unit that is configured to instruct the memory acquisition unit to acquire data stored in the memory unit when determining that key data including an encryption key for cryptographic communication protocol are stored in the memory unit; and a cryptanalysis unit that is configured to extract one or more key data candidates that are candidates of the key data, from the stored in the memory unit, and extract, from one or more of the key data candidates, correct key data that enables to decrypt correctly the encrypted communication data. The communication processing unit is further configured to execute specific processing according to the decrypted communication data.

7. 发明申请

US20170279622A1 DATA DETERMINATION APPARATUS, DATA DETERMINATION METHOD, AND COMPUTER READABLE MEDIUM 审中-公开
公开(公告)号：US20170279622A1
公开(公告)日：2017-09-28
申请号：US15510981
申请日：2015-12-22
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： Teruyoshi YAMAGUCHI , Koichi SHIMIZU , Nobuhiro KOBAYASHI , Tsunato NAKAI
IPC分类号： H04L9/36 , H04L29/06 , G06F21/56 , G06F21/55
CPC分类号： H04L9/36 , G06F21/55 , G06F21/554 , G06F21/567 , H04L63/0227 , H04L63/0263 , H04L63/1416 , H04L63/145
摘要： A data determination apparatus of the present invention includes a state transition model storage unit to store a state transition model representing a state transition, a state management unit to hold an operating state of an own apparatus based on the state transition model, a communication permission list storage unit to store, as a communication permission list, communication permitted data whose communications are permitted in respective operating states, a communication unit to obtain communication determination data, and a determination unit to determine whether or not the communication determination data is communication permitted data whose communication has been permitted in a current operating state, using the current operating state and the communication permission list.

8. 发明授权

US09615131B2 System and method of motion detection on encrypted or scrambled video data streams 有权
公开(公告)号：US09615131B2
公开(公告)日：2017-04-04
申请号：US13962246
申请日：2013-08-08
申请人： Honeywell International Inc.
发明人： Gurumurthy Swaminathan , Yadhunandan U S , Kwong Wing Au
IPC分类号： H04L29/00 , H04N9/00 , H04N21/4405 , H04N21/2347 , H04N21/235 , H04N19/513 , H04N19/48 , H04N19/88 , H04L9/36 , H04L9/06 , H04N5/14
CPC分类号： H04N21/4405 , H04L9/065 , H04L9/36 , H04L2209/60 , H04N5/144 , H04N19/48 , H04N19/513 , H04N19/88 , H04N21/2347 , H04N21/235 , H04N21/2351
摘要： Systems and methods of motion detection on encrypted or scrambled video data streams are provided. Some methods can include identifying macroblock size information for an encrypted/scrambled video data stream and using the identified macroblock size information to determine a presence of motion in the encrypted/scrambled video data stream without decrypting and descrambling the encrypted/scrambled video data stream.

9. 发明授权

US08964763B2 Inter-router communication method and module 有权
标题翻译：路由器间通信方式和模块
公开(公告)号：US08964763B2
公开(公告)日：2015-02-24
申请号：US12703168
申请日：2010-02-09
申请人： Anand Eswaran
发明人： Anand Eswaran
IPC分类号： H04L12/56 , H04L9/36 , H04L12/751 , H04L29/06
CPC分类号： H04L63/0263 , H04L45/02 , H04L63/145 , H04L63/1458 , H04L2463/141
摘要： A system and method of inter-router communication is described. The system and method include a routing protocol communication, configured to be sent between a plurality of routers on a network, and having a data plane update packet sent with a route update packet. The data plane update packet includes routing attributes corresponding to information export protocol signatures. A signature recognition module may be located on at least one of the routers in the network, and can store and recognize data packet signature patterns located in at least a portion of a payload of the data plane update packet. A data plane filter module can also be located on at least one of the routers, and can handle data packets according to filtering rules for specific data packet signature patterns.
摘要翻译：描述了路由器间通信的系统和方法。该系统和方法包括路由协议通信，被配置为在网络上的多个路由器之间发送，并且具有与路由更新分组一起发送的数据平面更新分组。数据平面更新包包括与信息导出协议签名对应的路由属性。签名识别模块可以位于网络中的至少一个路由器上，并且可以存储和识别位于数据平面更新分组的有效载荷的至少一部分中的数据分组签名模式。数据平面过滤器模块还可以位于至少一个路由器上，并且可以根据特定数据包签名模式的过滤规则处理数据包。

10. 发明授权

US08474036B2 Database context-based intrusion detection 有权
公开(公告)号：US08474036B2
公开(公告)日：2013-06-25
申请号：US12216135
申请日：2008-06-30
申请人： Slavik Markovich
发明人： Slavik Markovich
IPC分类号： H04L9/36 , H04L1/24
CPC分类号： G06F21/6227
摘要： A method for detecting an unauthorized action in a database, the method comprising estimating correlation between a predicted result of an intercepted database statement and at least one context parameter associated with the database statement, wherein lack of correlation indicates the database statement being associated with an unauthorized action.

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