公开(公告)号：US20230077314A1

公开(公告)日：2023-03-09

申请号：US17842399

申请日：2022-06-16

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

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.

公开(公告)号：US20220155974A1

公开(公告)日：2022-05-19

申请号：US17507727

申请日：2021-10-21

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

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.

公开(公告)号：US20240171305A1

公开(公告)日：2024-05-23

申请号：US18350157

申请日：2023-07-11

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

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.

公开(公告)号：US20240144894A1

公开(公告)日：2024-05-02

申请号：US18337295

申请日：2023-06-19

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

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.