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公开(公告)号：US20230077314A1
公开(公告)日：2023-03-09
申请号：US17842399
申请日：2022-06-16
Inventor： Sang-Woo LEE , Yong-Sung JEON , Ha-Young SEONG , You-Sung KANG , Ik-Kyun KIM
IPC: H04W12/121 , H04L27/26
Abstract: Disclosed herein is a method for detecting a covert channel in wireless communication. The method includes setting a wireless communication specification, detecting a covert timing channel, and detecting a covert storage channel.
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公开(公告)号：US20200233980A1
公开(公告)日：2020-07-23
申请号：US16742037
申请日：2020-01-14
Inventor： Sang-Jae LEE , You-Sung KANG , Keon-Woo KIM , Byoung-Koo KIM , Ik-Kyun KIM , Ju-Han KIM , Tae-Sung KIM , Mi-Kyung OH , Seung-Yong YOON , Seung-Kwang LEE , Yong-Sung JEON , Doo-Ho CHOI
Abstract: A secret information generation apparatus and a method for operating the secret information generation apparatus. The secret information generation apparatus includes a resistor-capacitor circuit, and a microcontroller unit including a first pin connected to an input terminal of the resistor-capacitor circuit and a second pin connected to an output terminal of the resistor-capacitor circuit, wherein the microcontroller unit is configured to transmit a digital value corresponding to a challenge to the resistor-capacitor circuit through the first pin, receive an output value of the resistor-capacitor circuit corresponding to the digital value through the second pin, convert the received value into a digital value using an analog-to-digital converter, extract one or more valid bits from the converted digital value, and then generate a response.
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3.发明申请公开(公告)号：US20210036873A1
公开(公告)日：2021-02-04
申请号：US16855754
申请日：2020-04-22
Inventor： Byoung-Koo KIM , Seung-Yong YOON , You-Sung KANG , Doo-Ho CHOI , Ik-Kyun KIM , Tae-Sung KIM , Mi-Kyung OH , Sang-Jae LEE
Abstract: Disclosed herein are an apparatus and method for authenticating an IoT device. The method, performed by the IoT device authentication apparatus, includes transmitting, by the IoT device authentication apparatus, a random number to the IoT device and encrypting, by the IoT device authentication apparatus, the random number using a previously registered first white-box cryptography value through a white-box cryptography method; generating, by the IoT device, a first device response value from a previously registered first device challenge value using a Physical Unclonable Function (PUF) and encrypting, by the IoT device, the random number, received from the IoT device authentication apparatus, using the first device response value; and performing, by the IoT device authentication apparatus, authentication of the IoT device by checking whether the random number encrypted using the white-box cryptography method matches the random number encrypted using the PUF, which is received from the IoT device.
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公开(公告)号：US20240236646A1
公开(公告)日：2024-07-11
申请号：US18521955
申请日：2023-11-28
Inventor： Bo-Heung CHUNG , You-Sung KANG , Keon-Woo KIM , Byoung-Koo KIM , Tae-Sung KIM , Seung-Yong YOON
Abstract: Disclosed herein is a method for managing an embedded Subscriber Identity Module (eSIM) profile. The method may include installing a common profile in multiple devices to perform provisioning, selecting a representative device from among the multiple devices, establishing a communication channel in the representative device, receiving, by the representative device, profile information for the multiple devices from a server, and transferring, by the representative device, the profile information to the respective devices.
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5.发明申请公开(公告)号：US20210152326A1
公开(公告)日：2021-05-20
申请号：US16863232
申请日：2020-04-30
Inventor： Seung-Kwang LEE , You-Sung KANG , Do-Young CHUNG
Abstract: Disclosed herein are a white-box encryption method for preventing a fault injection attack and an apparatus for the same. The white-box encryption method is configured to acquire a first intermediate value by inputting plaintext to a first part, among all of rounds of a white-box-based encryption algorithm, before table redundancy operations are performed, to input the first intermediate value to a second part for performing the table redundancy operations through at least two lookup tables to which different encodings based on a secret key are applied, among all of the rounds, to acquire a second intermediate value by inputting the output values of the at least two lookup tables to at least one XOR lookup table, and to output ciphertext for the plaintext based on a third part for decoding the second intermediate value.
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Patent Agency Ranking
公开(公告)号：US20150210175A1
公开(公告)日：2015-07-30
申请号：US14601638
申请日：2015-01-21
Inventor： You-Sung KANG , Yong-Je CHOI , Doo-Ho CHOI , Hyun-Sook CHO , Eun-Kyung JUN , Doo-Il PARK , Byeong-Gyu HYEON , Joon-Ho SHIN , Dong-Young SHIN
IPC: B60L11/18
CPC classification number: B60L11/1816 , B60L53/14 , B60L53/30 , B60L53/31 , B60L53/65 , H02J2007/0098 , Y02T10/7005 , Y02T10/7072 , Y02T90/121 , Y02T90/128 , Y02T90/14 , Y02T90/16 , Y02T90/163 , Y02T90/169 , Y04S30/14
Abstract: An electric vehicle and a device and method for charging the electric vehicle are disclosed. The device for charging an electric vehicle includes a charger cable communication unit, a charger security unit, and a control unit. The charger cable communication unit receives encrypted electric vehicle charging information from an electric vehicle. The charger security unit decrypts the encrypted electric vehicle charging information. The control unit determines whether the decrypted electric vehicle charging information is identical with charger charging information. The charger security unit encrypts the charger charging information if the control unit of the device for charging an electric vehicle determines that the decrypted electric vehicle charging information is not identical with the charger charging information. The charger cable communication unit sends the encrypted charger charging information to the electric vehicle. The control unit charges the electric vehicle when an acknowledgement message is received from the electric vehicle.
Abstract translation: 公开了一种用于对电动车辆充电的电动车辆和装置和方法。 用于对电动车辆充电的装置包括充电器电缆通信单元，充电器安全单元和控制单元。 充电器电缆通信单元从电动车辆接收加密的电动车辆充电信息。 充电器安全单元解密加密的电动车辆充电信息。 控制单元确定解密的电动车辆充电信息是否与充电器充电信息相同。 如果用于对电动车辆充电的装置的控制单元确定解密的电动车辆充电信息与充电器充电信息不相同，则充电器安全单元加密充电器充电信息。 充电器电缆通信单元将加密的充电器充电信息发送到电动车辆。 当从电动车接收到确认消息时，控制单元对电动车充电。
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7.发明公开公开(公告)号：US20240171305A1
公开(公告)日：2024-05-23
申请号：US18350157
申请日：2023-07-11
Inventor： Sang-Woo LEE , Yong-Sung JEON , Ha-Young SEONG , You-Sung KANG , Ik-Kyun KIM
IPC: H04L1/00 , H04L1/1607
CPC classification number: H04L1/0041 , H04L1/0061 , H04L1/1642
Abstract: Disclosed herein are an apparatus and method for transmitting a covert message in wireless communication. The apparatus for transmitting a covert message in wireless communication may be configured to, in a covert message in which a data frame is composed of a Start Frame Delimiter (SFD), a header, a payload, and a Cyclic Redundancy Check (CRC), transmit the SFD of the covert message corresponding to a first sequence number masked with a preset SFD mask length, transmit the header of the covert message corresponding to a second sequence number masked with a preset header mask length, transmit the payload of the covert message corresponding to a third sequence number masked with a preset payload mask length, and transmit the CRC of the covert message corresponding to a fourth sequence number masked with a preset CRC mask length.
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公开(公告)号：US20240144894A1
公开(公告)日：2024-05-02
申请号：US18337295
申请日：2023-06-19
Inventor： Yong-Sung JEON , Sang-Woo LEE , Ha-Young SEONG , You-Sung KANG , Ik-Kyun KIM
IPC: G09G5/10
CPC classification number: G09G5/10 , G09G2370/04
Abstract: Disclosed herein is a method for transmitting information using a monitor brightness change. The method may include generating a transmission data frame structure for transmitting digital information, encoding the bit of the digital information, and converting the encoded bit of the digital information into a wireless signal that is a brightness change signal of blue (B) color, among red, green, and blue (RGB) for configuring colors on a monitor.
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公开(公告)号：US20210392004A1
公开(公告)日：2021-12-16
申请号：US17208212
申请日：2021-03-22
Inventor： Byoung-Koo KIM , Seung-Yong YOON , You-Sung KANG , Doo-Ho CHOI , Ik-Kyun KIM , Tae-Sung KIM , Mi-Kyung OH , Sang-Jae LEE
Abstract: Disclosed herein are an apparatus and method for device authentication. The method for device authentication based on a certificate using a PUF, performed by an apparatus for device authentication based on a certificate using a PUF, includes acquiring previously stored first Challenge-Response-Pair (CRP) information corresponding to identification information received from a device that requests authentication and generating a certificate including a public key generated using the first CRP information; transmitting a message in which the certificate encrypted using the first response value of the first CRP information as a server secret key and the first challenge value of the first CRP information are included to the device; and authenticating the device by verifying an encrypted signature message received from the device through a secure channel.
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公开(公告)号：US20210058249A1
公开(公告)日：2021-02-25
申请号：US16940146
申请日：2020-07-27
Inventor： Yong-Sung JEON , You-Sung KANG , Byoung-Koo KIM , Sang-Jae LEE , Seung-Kwang LEE , Doo-Ho CHOI
Abstract: Disclosed herein are a hardware security module, a device having the hardware security module, and a method for operating the device. The method for verifying integrity of executable code in a device includes dividing, by a Micro-Control Unit (MCU), executable code into multiple blocks, generating, by the MCU, hash values corresponding to the blocks resulting from the division, storing, by a Hardware Security Module (HSM), the generated hash values, calculating, by the MCU, at least one hash value, among hash values of the multiple blocks when the executable code boots, and comparing, by the HSM, the calculated hash value with a hash value corresponding to the calculated hash value, among the hash values stored in the HSM.
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