Abstract:
클라우드 네트워크 환경에서 서버 또는 단말에 별도의 암호화 소프트웨어 또는 하드웨어의 설치 없이, 저장되는 데이터의 보안성을 향상시킬 수 있는 데이터 보안 기술이 개시된다. 이를 위해, 본 발명에 따른 클라우드 네트워크 환경에서의 데이터 보안 장치는 유무선 통신 채널에서 신호를 수신하는 신호 수신부; 신호 수신부에서 수신한 신호에서 패킷을 구분하여 캡쳐하는 패킷 캡쳐부; 패킷을 분석하여, 패킷이 단말에서 서버로 전송되는 업링크 패킷인지, 서버에서 단말로 전송되는 다운링크 패킷인지 판별하는 판별부; 및 패킷이 업링크 패킷인 경우 패킷을 암호화하고, 패킷이 다운링크 패킷인 경우 패킷을 복호화하는 암복호화부를 포함한다.
Abstract:
The present invention relates to a method and an apparatus for transmitting and receiving a multi-stream in an interactive service, and provides a method for transmitting a second stream in synchronization with a first stream being transmitted by a server, and the method comprises steps of receiving, from a client, a second stream synchronization reproduction request message indicating a request for transmission of the second stream such that the second stream should be synchronized with the first stream and including an identifier of the first stream, checking the first stream corresponding to the second stream based on the identifier, and synchronizing the second stream with the first stream based on a reproduction point of the first stream; and transmitting the second stream to the client, starting from the reproduction point synchronized with the first stream. When multiple streams need to be reproduced in synchronization, the server matches a reproduction point of another stream with reference to any one stream and transmits the other stream to the client, thus, minimizing receiving of unnecessary stream data, a waste of a buffer, and the time for the client to wait for reproducing a stream.
Abstract:
Disclosed in the present invention is a dynamic key button display method capable of shortening key input time by dynamically arranging keys according to how often each Korean alphabet is used and being differentiated for each user. According to the present invention, the dynamic key button display method includes: a step of extracting an initial consonant group from a first database and displaying the extracted initial consonant group; a step of selecting an initial consonant from the initial consonant group and displaying the selected initial consonant; a step of extracting a vowel candidate group applicable to the selected initial consonant from a second database and displaying vowels in the vowel candidate group in the descending order of use frequency how often each vowel is used together with the selected initial consonant in a way that the most frequently used vowel is placed the closest to the selected initial consonant; a step of selecting a vowel from the vowel group, displaying a letter which is the combination of the selected initial consonant and the selected vowel, and updating the use frequency of the selected vowel into the second database; a step of extracting an available final consonant group for the letter from a third database and displaying consonants in the final consonant group in the descending order of use frequency how often each consonant is used together with the letter in a way that the most frequently used consonant is placed the closest to the letter; and a step of selecting a final consonant from the final consonant group and updating the use frequency of the selected final consonant into the third database.
Abstract:
The present invention relates to an authentication executing method based on a physically unclonable function (PUF), capable of executing authentication by generating a response value from an output value which is outputted by generating a challenge value from state information about a wireless communication channel and inputting the generated challenge value to a PUF circuit. [Reference numerals] (10) Authentication request apparatus; (60) Authentication process apparatus; (S1100) Generate a pilot signal; (S1102) Transmit the pilot signal; (S1104) Estimate channel state information; (S1106) Generate a query value; (S1108) Generate a response value; (S1110) Generate the pilot signal; (S1112) Transmit the pilot signal and the response value; (S1114) Estimate the channel state information; (S1116) Generate the query value; (S1118) Search the response value; (S1120) Compare the response value and authentication process; (S1122) Generate authentication result information; (S1124) Transmit the authentication result information
Abstract:
The present invention relates to a key arrangement and input type of a virtual keyboard. The present invention provides a text input method using a virtual keyboard including a plurality of consonant and vowel groups. The text input method comprises the steps of: selecting one among consonant and vowel groups; and selecting one among consonants and vowels included in the selected consonant and vowel group. When the user uses the virtual keyboard, the text input method allows the user to select a consonant and vowel group and then select consonants and vowels included in the selected consonant and vowel group to reduce the number of consonants and vowels displayed on one screen, thereby relatively increasing the size of corresponding consonant and vowel keys and to reduce a typing error, thus improving text input speed.
Abstract:
An internet protocol security encrypting device and a method for high speed encryption of small-sized packet data are provided to enhance processing performance of the small-sized packet data by processing rapidly operations for performing an encryption process command. A host matching unit(200) performs a matching function between an external host device and an internal bus through a host bus and performs a matching function of an input/output device. A CPU(208) controls a hardware within an encryption device and outputs response data corresponding to a command of the host device through the host matching unit to the host device. A CPU memory(207) stores a program and data of the CPU. An encryption algorithm process engine performs a block encryption algorithm process operation and a MAC algorithm process operation. A command division and response generator divides the data of the host device into commands and encryption data, composes transmitting data by combining command analysis results with encryption process result data, and controls input/output operations of the encryption process data. An internal bus arbitration unit(201) includes a DIB_FIFO buffer for storing the data of the host device to be transmitted to the command division and response generator, a DOB_FIFO buffer for storing output data of the command division and response generator, a CIB_FIFO buffer for storing the data of the host device to be transmitted to the CPU, and a COB_FIFO buffer for storing the response data of the CPU. A session memory stores session information. A command execution and session memory matching unit receives and analyzes the commands from the command division and response generator, resets the encryption algorithm process engine, and executes an update command for updating the session memory.
Abstract:
본 발명은 무선 통신 시스템에서 신뢰 중계 장치 또는 비신뢰 중계 장치를 이용하여 형성되는 무선 채널 상태에서 암호키 스트림을 추출하고, 추출함 암호키 스트림을 이용하여 평문 데이터를 암호화하여 전송하는 장치 및 그 방법에 관한 것이다. 이와 같은, 보안 데이터 전송 장치는 안테나를 통해 파일럿 신호 수신하고, 수신한 파일럿 신호를 이용하여 무선 채널 상태를 추정하는 수신기, 무선 채널 상태를 포함하는 정보를 토대로 암호키 스트림을 생성하는 키 생성부 및 암호키 스트림을 이용하여 평문 데이터를 전송하거나, 파일럿 신호를 전송하는 송신기를 포함한다.
Abstract:
Disclosed are a device and a method for managing a life log. The device for managing a life log according to an embodiment of the present invention comprises a life log collecting unit for tracing user′s line of sight to collect life log information; an interest information generating unit for generating the life log information recorded while staring at one point as at least one interest information, if it is determined that the traced line of sight stares at one point exceeding the predetermined time; and a display unit to display at least one interest information.
Abstract:
The present invention relates to a system and a method of correcting Korean characters. The system includes a typo selecting unit for selecting a typo; a character checking unit for checking a character inputted for the selected typo, and checking whether the inputted character is any among an initial consonant, a vowel, and a final consonant; and a typo correcting unit for correcting the checked character in the selected typo.
Abstract:
데이터 변경 장치 및 방법이 개시된다. 본 발명의 실시예들에 따르면, 청크 오프셋 박스에 기본 오프셋을 설정하여, 데이터 추가/삭제 등의 변경이 있는 경우, 기본 오프셋을 변경함으로써, 청크 오프셋 박스 내의 모든 오프셋을 수정하지 않을 수 있고, 따라서 연산의 복잡도를 감소시킬 수 있으며, CPU 자원을 적게 소모할 수 있다.