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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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Patent Agency Ranking
2.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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3.发明申请公开(公告)号：US20220155974A1
公开(公告)日：2022-05-19
申请号：US17507727
申请日：2021-10-21
Inventor： Yong-Sung JEON , Doo-Ho CHOI , Ha-Young SEONG , Mi-Kyung OH , Sang-Jae LEE , Ik-Kyun KIM
IPC: G06F3/06
Abstract: Disclosed herein is a device equipped with flash memory, which includes memory in which at least one program is recorded and a processor for executing the program. The memory includes flash memory including a data area and a backup area, and the program divides data into two or more segments depending on whether the data can be stored in a single page and stores the same in the data area. The first segment is stored in a page along with a segment number, indicating the sequential position of the divided data, a segment offset, indicating the number of pages between the pages in which the current segment and the next segment are stored, the size of a data file name, the size of the data, and the file name. At least one additional segment may be stored in another page along with the segment number and segment offset thereof.
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公开(公告)号：US20160142982A1
公开(公告)日：2016-05-19
申请号：US14942059
申请日：2015-11-16
Inventor： Byoung-Hak KIM , Jae-Hwan KIM , Cheol-Ho SHIN , Mi-Kyung OH , Sang-Sung CHOI
CPC classification number: H04W52/245 , H04B17/318 , H04W52/242 , H04W52/283
Abstract: Disclosed herein is an apparatus for controlling transmit power, including: a global positioning system (GPS) receiving unit receiving GPS signals from one or more satellites and measuring signal strengths of the GPS signals; a processor calculating transmit power corresponding to a current position depending on the GPS signals according to a predefined command; a memory storing the command therein; and a communication interface transmitting a data signal including data depending on the transmit power.
Abstract translation: 本发明公开了一种用于控制发射功率的装置，包括：全球定位系统（GPS）接收单元，接收来自一个或多个卫星的GPS信号并测量GPS信号的信号强度; 处理器根据预定义的命令根据GPS信号计算与当前位置相对应的发射功率; 存储该命令的存储器; 以及通信接口，发送包含依赖于发送功率的数据的数据信号。
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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：US20200167504A1
公开(公告)日：2020-05-28
申请号：US16552553
申请日：2019-08-27
Inventor： Mi-Kyung OH , Sang-Jae LEE , You-Sung KANG , Ik-Kyun KIM , Ju-Han KIM , Doo-Ho CHOI
Abstract: Disclosed herein are an apparatus and method for generating secret information. The apparatus includes a data communication unit for receiving a request to output a content value and outputting the content value; and a microcontroller unit for generating a Physically Unclonable Function (PUF) response based on the content value, calculating the characteristic value of the PUF response, and generating secret information using the PUF response, the error of which is corrected using the characteristic value.
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