Electronics and Telecommunications Research Institute

Yong-Sung Jeon

Hong-Il Ju

Jeong-Nyeo Kim

Seung-Yong Yoon

Young-Sae Kim

Ik-Kyun Kim

Sang-Woo Lee

Kyo-Il Chung

You-Sung Kang

Jae-Deok Lim

Sung-Ik Jun

Young-soo Park

Ha-Young Seong

Dae-Won Kim

Ji Man Park

Yun-Kyung Lee

Hyun-Sook Cho

Yong-Hyuk Moon

Hong Il Ju

Doo-Ho Choi

Sang-Jae Lee

Jin-Hee Han

Young-Ho Kim

Jong Soo Jang

Jeong Nyeo Kim

Moo Seop Kim

Bo-Heung Chung

Young Sae Kim

Jin Hee Han

Taek Yong Nam

Byoung-Koo Kim

Mi-Kyung Oh

Jong-Wook Han

Seung-Kwang Lee

Seungmin Lee

SuGil Choi

Heon-Young Yeom

Geonwoo Kim

Ji-Man Park

Donghyuk Lee

Im-young Jung

Sung-ik Jun

Kyo-ill Chung

Hong-il Ju

YoungHo Kim

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.

Method for transmitting/receiving information using monitor brightness change

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.

Method and apparatus for detecting covert channel for wireless communication

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.

Device with flash memory and method for writing/erasing/updating data in flash memory thereof

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.

Hardware security module for verifying executable code, device having hardware security module, and method of operating device

Disclosed herein are an apparatus and method for detecting a malicious device based on swarm intelligence. The method includes detecting a malicious device by causing at least one exploration ant to access a device swarm along movement routes in which pheromone trail values are taken into consideration, wherein the exploration ant is generated in response to a detection request received from a security management server, when the at least one exploration ant detects a suspicious device that is suspected to be a malicious device, causing the exploration ant to return along the movement routes in reverse order, and returning pheromone trail values generated by devices on the return movement routes to a malicious device detection apparatus, and identifying whether the suspicious device is the malicious device by calculating an optimal solution based on a local information set generated by aggregating the pheromone trail values returned for movement routes.

Apparatus and method for detecting malicious device based on swarm intelligence

Disclosed herein is an apparatus for supporting authentication between devices, which includes a certificate information storage unit for storing certificate data of a first terminal for managing a certificate; a communication unit for receiving a request for a certificate of the first terminal, which uses a signature value and certificate-related information corresponding to the first terminal, from a second terminal and returning information corresponding to a valid certificate of the first terminal to the second terminal in order to enable the second terminal to authenticate the first terminal; and a certificate verification unit for verifying whether a certificate of the first terminal is valid.

Apparatus for supporting authentication between devices in resource-constrained environment and method for the same

Disclosed herein are a fixed-location Internet-of-Things (IoT) device for protecting secure storage access information and a method for protecting secure storage access information of the fixed-location IoT device. The fixed-location IoT device includes a unique hardware information analysis unit for generating a hardware hash value by analyzing unique hardware information corresponding to the fixed-location IoT device for protecting the secure storage access information, a network environment information collection unit for collecting network environment information from neighboring fixed-location IoT devices, a network environment information analysis unit for generating a network hash value by analyzing the network environment information, an access information encryption key generation unit for generating an access information encryption key corresponding to the secure storage access information using the hardware hash value and the network hash value, and an encryption/decryption unit for encrypting or decrypting the secure storage access information using the access information encryption key.

Fixed-location IoT device for protecting secure storage access information and method for protecting secure storage access information of fixed-location IoT device

The present invention relates to an apparatus and a method for transferring a data signal between a smartcard interface and an interface of a processor within an embedded system. According to an exemplary embodiment of the present invention, an interface conversion device communicating between a processor and a smartcard IC chip includes: an input/output signal conversion logic configured to transfer a signal between a first interface of the processor and a second interface of the smartcard IC chip; a clock generator configured to generate a clock signal driving the smartcard IC chip depending on a first control signal received from the processor and provide the generated clock signal to the smartcard IC chip; and a reset controller configured to generate a reset signal depending on a second control signal received from the processor and provide the generated reset signal to the smartcard IC chip.

Smartcard interface conversion device, embedded system having the same device and method for transferring data signal used in the same device

An apparatus for providing near field communication (NFC) for a mobile device, includes a USB (universal serial bus) signal processing unit configured to convert a signal of the mobile device, which is received through a USB interface into a value to be processed in a central processing unit, and convert a value received from the central processing unit into a signal to be transmitted to the USB interface. Further, the apparatus includes an analog signal processing unit configured to convert an analog signal received from an outside device into a digital signal, and convert a digital signal of the central processing unit into an analog signal to transmit the converted analog signal to the antenna.

Apparatus and method for providing near field communication for mobile device

A mobile computing system for providing a high-security execution environment is provided. The mobile computing system separates execution environments in the same mobile device on the basis of virtualization technology and manages user-specific execution environments using the same hardware security module, thereby facilitating protection of personal privacy.

Mobile computing system for providing high-security execution environment

Disclosed herein are a universal subscriber identification module card and a communication method using the same. The universal subscriber identification module card includes a Universal Subscriber Identification Module (USIM) chip, a pad, and a security chip. The USIM chip performs the user authentication of a mobile terminal. The pad electrically connects the USIM chip to the mobile terminal when the USIM chip is inserted into the mobile terminal. The security chip performs a security function for the mobile terminal independently of the USIM chip and shares the two power terminals of the pad with the USIM chip.

Universal subscriber identification module card, including security chip, for mobile terminal and communication method using the same

A wireless communication medium includes an antenna, an analog signal processor, a digital signal processor, and a central processing unit & logic module. The antenna transmits and receives a signal to and from an external apparatus. The analog signal processor converts an analog signal to a digital signal, and converts a digital signal to an analog signal. The digital signal processor demodulates the digital signal, detects the start and end of data, and generates a first control signal for determining whether data is transmitted to the external apparatus and a second control signal for perceiving the end of data, blocking the reception of data, modulating data, and determining whether modulated data is transmitted to the external apparatus. The central processing unit & logic module processes data received from and transmitted to the external apparatus. Accordingly, an efficiency of processing a RF signal can be improved.

Wireless communication medium and method for operating the same

A security management server includes an input unit for receiving image data from at least one network camera; a control unit for assigning an access authority level to each image data received via the input unit; and a storage unit for storing therein the image data along with the access authority levels assigned by the control unit. When receiving a request for a specific image data among the image data stored in the storage unit from a user having a user access authority level, the control unit compares the user access authority level and the access authority level assigned to the specific image data, and based on comparison result thereof, selectively provides the specific image data to the user.

Security management server and image data managing method thereof

A block cipher ARIA substitution apparatus, the apparatus includes a first Sbox operation unit for performing operations of a substitution box Sand a substitution box S; a second Sbox operation unit for performing operations of a substitution box Sand a substitution box S; and a control unit for determining modes of the first Sbox operation unit and the second Sbox operation unit. The first Sbox operation unit has a first inverse affine transformation unit for performing an inverse affine operation for obtaining S; a finite field inverse element operation unit for computing an inverse element of GF(2) or a result value of the first inverse affine transformation unit; a first affine transformation unit for performing an affine operation for obtaining S; and a first and a second multiplexer.

Block cipher aria substitution apparatus and method

Growing community of inventors

Daejeon, South Korea

Yong-Sung Jeon