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公开(公告)号：US11529960B2
公开(公告)日：2022-12-20
申请号：US16690070
申请日：2019-11-20
发明人： Seok Woo Lee , Duk Soo Kim , Eui Seok Kim , Sang Gyoo Sim , Seung Young Park
IPC分类号： B60W40/09 , G06N3/08 , H04L12/40 , B60R16/023 , G06V20/59
摘要： Provided is a method for detecting a driver's abnormalities based on a CAN (Controller Area Network) bus network communicating with an ECU (Electronic Control Unit) of a vehicle. The method may include: acquiring a CAN bus signal related to an operation of the vehicle from the CAN bus network; extracting a detection vector from the CAN bus signal using an auto encoder; and detecting a driver's abnormality based on the detection vector.
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公开(公告)号：US20200242081A1
公开(公告)日：2020-07-30
申请号：US16262414
申请日：2019-01-30
发明人： Seok Woo Lee , Duk Soo Kim , Sang Gyoo Sim , Min Woo Nam , Kwon Koo Kwak , Jae Yeon Yoon
IPC分类号： G06F16/176 , G06F16/16 , G06F16/182 , H04L9/06
摘要： Provided are a device and method for sharing big data using a blockchain. The method of sharing big data using a blockchain includes receiving a search condition from a user terminal, searching a blockchain network for metadata meeting the received search condition and acquiring found metadata, acquiring shared data stored in a distributed storage using the acquired metadata, and transmitting the acquired shared data to the user terminal.
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公开(公告)号：US11438248B2
公开(公告)日：2022-09-06
申请号：US16989617
申请日：2020-08-10
发明人： Seung Young Park , Sang Gyoo Sim , Duk Soo Kim , Seok Woo Lee , Myung Jin Kim , Eui Seok Kim
摘要： An operation method of a communication node in a communication network may comprise receiving CAN signals from a plurality of CAN communication nodes; generating forward input data by performing forward preprocessing on the received CAN signals based on forward sampling times; generating forward mask data for the forward input data and forward time interval data according to the forward sampling times; generating backward input data by performing backward preprocessing on the CAN signals based on backward sampling times; generating backward mask data for the backward input data and backward time interval data according to the backward sampling times; and detecting an abnormal signal among the CAN signals by inputting the forward input data, forward mask data, forward time interval data, backward input data, backward mask data, and backward time interval data into a gated recurrent unit-decay (GRU-D) neural network.
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公开(公告)号：US11303439B2
公开(公告)日：2022-04-12
申请号：US16432770
申请日：2019-06-05
发明人： Sung Ok Choi , Young In Park , Sang Gyoo Sim , Duk Soo Kim , Seok Woo Lee
摘要： Provided are a method and device for performing authentication using a hardware security module (HSM) in a one machine-to-machine (oneM2M) environment. The method of performing authentication using an HSM in a oneM2M environment includes extracting a symmetric key stored in the HSM using a security application programming interface (API), generating a first value and a second value using the extracted symmetric key, and performing mutual authentication with an M2M enrolment function (MEF) server through transport layer security pre-shared key ciphersuites (TLS-PSK) using the first value and the second value.
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公开(公告)号：US09762384B2
公开(公告)日：2017-09-12
申请号：US14409720
申请日：2013-07-01
发明人： SangGyoo Sim , Duk Soo Kim , Kyung Moon Nam , Taejoon Jung , Seok Woo Lee
CPC分类号： H04L9/0618 , G06F21/60 , H04L9/0816 , H04L9/3239 , H04L2209/34
摘要： The method for encoding a character string by a data processing device disclosed in the present specification comprises the steps of: acquiring input data; performing a one-way function to generate ciphertext based on the input data; and converting the ciphertext to output data. In the conversion step, the output characters constituting the output data are selected from the group of input characters constituting the input data, and the length of the output data becomes a specific length.
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公开(公告)号：US11336668B2
公开(公告)日：2022-05-17
申请号：US16277478
申请日：2019-02-15
发明人： Seung Young Park , Sang Gyoo Sim , Duk Soo Kim , Seok Woo Lee , Myung Jin Kim
IPC分类号： G06F16/955 , G06F16/958 , H04L29/06
摘要： Disclosed is a method of detecting whether a groupware user's behavior is an abnormal behavior. The method includes acquiring a uniform resource identifier (URI) from the user's behavior, generating a URI sequence from the URI on the basis of a predetermined time interval, preprocessing the URI sequence to generate a primitive URI sequence, calculating a log probability value from the primitive URI sequence, and detecting whether the user's behavior is an abnormal behavior on the basis of the log probability value and a predetermined threshold value.
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公开(公告)号：US11249953B2
公开(公告)日：2022-02-15
申请号：US16262414
申请日：2019-01-30
发明人： Seok Woo Lee , Duk Soo Kim , Sang Gyoo Sim , Min Woo Nam , Kwon Koo Kwak , Jae Yeon Yoon
IPC分类号： G06F17/30 , G06F16/176 , G06F16/16 , G06F16/182 , H04L9/06
摘要： Provided are a device and method for sharing big data using a blockchain. The method of sharing big data using a blockchain includes receiving a search condition from a user terminal, searching a blockchain network for metadata meeting the received search condition and acquiring found metadata, acquiring shared data stored in a distributed storage using the acquired metadata, and transmitting the acquired shared data to the user terminal.
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公开(公告)号：US10783395B2
公开(公告)日：2020-09-22
申请号：US16231797
申请日：2018-12-24
发明人： Seung Young Park , Sang Gyoo Sim , Duk Soo Kim , Seok Woo Lee , Myung Jin Kim
摘要： Disclosed herein are a method and an apparatus for detecting abnormal traffic based on a convolutional autoencoder (CAE). The method of detecting abnormal traffic based on the CAE may include converting a character string of normal traffic into an image, learning the converted image using the CAE, and detecting abnormal traffic by inputting target traffic to the learned CAE.
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公开(公告)号：US10432653B2
公开(公告)日：2019-10-01
申请号：US15832050
申请日：2017-12-05
发明人： Sang Gyoo Sim , Seok Woo Lee , Seung Young Park , Duk Soo Kim
摘要： Disclosed is a method for detecting anomaly traffic using an autoencoder based on an inception-residual network-v2 which is one type of machine learning methods, the method including generating a plurality of encoders on the basis of traffic data for learning; generating a plurality of pieces of image data on the basis of traffic data for each session, which is a detection target; and determining whether the traffic data for each session is abnormal using at least one among the traffic data for learning, the plurality of encoders, and the plurality of pieces of image data.
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公开(公告)号：US09972147B1
公开(公告)日：2018-05-15
申请号：US15499918
申请日：2017-04-28
发明人： Seok Woo Lee , Duk Soo Kim , Sang Gyoo Sim , Kyung Moon Nam , Yeon Tae Kim
CPC分类号： G07C9/00087 , G07C9/00015 , G07C9/00039 , G07C9/00079 , G07C9/00103 , G07C9/00571 , G07C2009/00095 , H04L63/067 , H04L63/0838 , H04L63/0861 , H04W12/06
摘要： A smart badge of the present invention comprises a communication unit capable of performing wireless communication, an OTP (one-time password) storage unit configured to store therein OTP information for generating one-time password (OTP), a display unit configured to display information, an image storage unit configured to store therein at least two images to be displayed on the display unit, a personal information storage unit configured to store therein user's personal information, an input unit that is to be used for selecting an image to be displayed on the display unit, and a control unit configured to control the respective constitutional elements.
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