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公开(公告)号：KR1020140123723A
公开(公告)日：2014-10-23
申请号：KR1020130040891
申请日：2013-04-15
Applicant: 한국전자통신연구원
CPC classification number: G06K7/10019 , G06F21/35 , H04L9/0822 , H04L9/0833 , H04L9/0838 , H04L63/065 , H04W4/80 , H04W12/04
Abstract: Provided is a method for key establishment in an RFID system using an adaptive Q anti-collision algorithm. The method comprises the following steps: generating a group key between a reader and a number of tags using values of Q that are changed under the adaptive Q anti-collision algorithm; and creating session keys between the reader and the tags using unique IDs of the respective tags, wherein generating the group key comprises: concatenating the values of Q to produce concatenated bit streams; and hashing the concatenated bit streams to generate the group key, and creating the session keys comprises: performing an encryption operation by using the group key as an encryption key and the IDs as data to be encrypted.
Abstract translation: 提供了一种使用自适应Q抗冲突算法在RFID系统中建立密钥的方法。 该方法包括以下步骤：使用在自适应Q抗冲突算法下改变的Q值，在读取器和多个标签之间生成组密钥; 以及使用所述相应标签的唯一ID在所述读取器和所述标签之间创建会话密钥，其中生成所述组密钥包括：级联所述Q值以产生连续的比特流; 并且将连接的比特流散列以生成组密钥，并且创建会话密钥包括：通过使用组密钥作为加密密钥并且将ID作为要加密的数据来执行加密操作。
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公开(公告)号：KR1020140072283A
公开(公告)日：2014-06-13
申请号：KR1020120137167
申请日：2012-11-29
Applicant: 한국전자통신연구원
CPC classification number: H04L9/002 , H04L9/0662 , H04L2209/046
Abstract: The present invention relates to a masking method for preventing a side channel from being analyzed, and more particularly, to a masking method which is capable of generating a new random number by using a pseudo random number generating logic based on LFSR as a random number for masking so that the random number generating time and the calculating time which are taken when using a conventional random number generator can be reduced. In addition, other necessary calculations can be performed by using one random number, so that the memory for storing the random number and complex logic required for masking calculation can be reduced. Therefore, a high-degree side channel analysis can be prevented while effectively performing random number generation and cryptograph calculation.
Abstract translation: 本发明涉及一种用于防止侧信道被分析的掩蔽方法，更具体地，涉及一种能够通过使用基于LFSR的伪随机数生成逻辑作为随机数生成新的随机数的掩蔽方法， 使得可以减少使用常规随机数发生器时所采用的随机数生成时间和计算时间。 此外，可以通过使用一个随机数来执行其他必要的计算，从而可以减少用于存储用于掩蔽计算所需的随机数和复杂逻辑的存储器。 因此，可以有效地执行随机数生成和加密计算，可以防止高度侧信道分析。
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公开(公告)号：KR101334040B1
公开(公告)日：2013-11-28
申请号：KR1020100005175
申请日：2010-01-20
Applicant: 한국전자통신연구원
CPC classification number: H04L9/0631 , H04L2209/043 , H04L2209/046
Abstract: 마스킹 기법을 사용하기 위한 대칭키 암호화 알고리즘, 예를 들어 ARIA나 SEED 암호화 알고리즘에서는, 대칭키 암호화 시스템 내의 마스킹 룩-업(look-up) 테이블인 S-박스(S-box) 테이블을 적어도 2개 이상 생성 및 저장해야만 하는 바, 마스킹 연산에 필요한 자원들, 예를 들면 연산 시간, 메모리 용량 등이 과도하게 소모되는 문제가 있다. 이에 본 발명에서는, 최초 생성된 마스킹 S-박스(masking S-box) 테이블을 참조하여 하나의 마스킹 S-박스를 연산한 후, 추가적인 마스킹 S-박스 테이블을 참조하지 않고 상기 최초 생성된 마스킹 S-박스 테이블을 참조하여 나머지 다른 마스킹 S-박스를 연산함으로써, 마스킹 연산에 필요한 연산 시간, 메모리 용량 등을 줄일 수 있는 대칭키 암호화 시스템의 마스킹 연산 기술을 제안하고자 한다.
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公开(公告)号：KR1020130068078A
公开(公告)日：2013-06-25
申请号：KR1020110135378
申请日：2011-12-15
Applicant: 한국전자통신연구원
CPC classification number: G06F21/755 , G06F2207/7219
Abstract: PURPOSE: A sub-channel analysis method in a distribution system and an apparatus using the same are provided to reduce network consumption by an analysis middle value transmitted to a main terminal and to prevent a memory lack in the main terminal, thereby processing a longer waveform. CONSTITUTION: A main terminal(100) includes an analysis target waveform database(102), an analysis task assigning unit(104), and an analysis result collecting unit(106). The analysis target waveform database stores analysis target waveform information. The analysis task assigning unit recognizes the number of sub terminals, divides the number of the sub terminals with the number of candidate keys and delivers the candidate keys to each of the sub terminals. The analysis result collecting unit receives or collects a result waveform of which analysis is completed by the sub terminals. The sub terminals include analysis target waveform database(202), and an analysis task operating unit(204). The analysis target waveform database stores the analysis target waveform information supplied from the main terminal in advance, and corresponding analysis target waveform information is selected by the analysis task operating unit as necessary. The analysis task operating unit analyzes a corresponding analysis target waveform based on the candidate keys supplied from the analysis task assigning unit of the main terminal. [Reference numerals] (102,202) Analysis target waveform DB; (104) Analysis task assigning unit; (106) Analysis result collecting unit; (204) Analysis task operating unit
Abstract translation: 目的：提供一种分发系统中的子信道分析方法及使用该子信道分析方法的装置，通过发送到主终端的分析中间值来减少网络消耗，防止主终端中的存储器不足，从而处理较长的波形 。 构成：主终端（100）包括分析目标波形数据库（102），分析任务分配单元（104）和分析结果收集单元（106）。 分析目标波形数据库存储分析目标波形信息。 分析任务分配单元识别子终端的数量，将子终端的数量与候选密钥的数量进行分割，并将候选密钥递送给每个子终端。 分析结果收集单元接收或收集由子终端完成分析的结果波形。 子终端包括分析目标波形数据库（202）和分析任务操作单元（204）。 分析对象波形数据库预先存储从主终端提供的分析对象波形信息，根据需要由分析任务操作部选择对应的分析对象波形信息。 分析任务操作单元基于从主终端的分析任务分配单元提供的候选键分析相应的分析目标波形。 （102,202）分析对象波形DB; （104）分析任务分配单元; （106）分析结果收集单元; （204）分析任务操作单元
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公开(公告)号：KR1020130058815A
公开(公告)日：2013-06-05
申请号：KR1020110124762
申请日：2011-11-28
Applicant: 한국전자통신연구원
CPC classification number: H04L9/002
Abstract: PURPOSE: A device for restricting sub-channel information and a method thereof are provided to restrict the acquisition of sub-channel information using leaked information such as electromagnetic waves. CONSTITUTION: A repetition execution detecting unit(100) determines whether encryption calculation is executed during a fixed time. The repetition execution detecting unit determines whether an encryption calculation command is executed according to a determination result. When supplied power is blocked, a power maintenance unit(200) controls the repetition execution detection unit maintains a threshold value in the repetition detection unit during the fixed time. An encryption calculation unit(300) executes the encryption calculation according to the determination of the repetition execution detecting unit. [Reference numerals] (100) Repetition execution detecting unit; (200) Power maintenance unit; (300) Encryption calculation unit; (AA) Encryption calculation command
Abstract translation: 目的：提供一种用于限制子信道信息的装置及其方法，以限制使用诸如电磁波的泄露信息来获取子信道信息。 构成：重复执行检测单元（100）确定在固定时间内是否执行加密计算。 重复执行检测单元根据确定结果确定是否执行加密计算命令。 当供电被阻止时，电力维护单元（200）控制重复执行检测单元在固定时间内保持重复检测单元中的阈值。 加密计算单元（300）根据重复执行检测单元的确定执行加密计算。 （附图标记）（100）重复执行检测单元; （200）电源维护单元; （300）加密计算单位; （AA）加密计算命令
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Patent Agency Ranking
公开(公告)号：KR101146753B1
公开(公告)日：2012-05-17
申请号：KR1020080124203
申请日：2008-12-08
Applicant: 한국전자통신연구원
IPC: G06K19/07 , G06K19/077
CPC classification number: G06K19/07345 , G06K19/07749
Abstract: 본 발명은 전파식별 태그에 관한 것이다.
본 발명에 따르면, 패키징 구조물에 외부압력이 가해지지 않은 상태에서는 안테나로부터 전력 및 데이터를 전달하는 도선이 공기층에 의해 전파식별 칩과 이격된다. 반면에, 패키징 구조물에 외부압력이 가해지면 도선이 전파식별 칩에 연결되어 안테나와 전파식별 칩 사이의 전력 및 데이터를 전달한다.
RFID, 프라이버시, 해킹-
公开(公告)号：KR101136973B1
公开(公告)日：2012-04-19
申请号：KR1020090028244
申请日：2009-04-01
Applicant: 한국전자통신연구원
CPC classification number: H04L9/3278
Abstract: PURPOSE: An integration protective device and an integration security method are provided to simultaneously perform a device authentication and a stream encryption by changing an action mode in a process using communally a device overlapped with of a PUF(Physical Unclonable Function) circuit and a FSR(Feedback Shift Register) circuit. CONSTITUTION: An action mode control part(110) decides an authentication mode performing a device authentication and an encryption mode performing a stream encryption. An authentication part performs the device authentication using a difference of data route divided by an input data in the authentication mode. An encryption part stream-encrypts an input value through a calculation in the encryption mode. The authentication part include a plurality of operators performing a bit calculation and unit route sets including a second multiplexor with selecting one of an output of the buffers and a plurality of buffers having different route delay properties.
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公开(公告)号：KR101136972B1
公开(公告)日：2012-04-19
申请号：KR1020090048259
申请日：2009-06-01
Applicant: 한국전자통신연구원
Abstract: 타원곡선 암호화를 위한 유한체 중 GF(P) 상의 소수 유한체의 곱셈 및 역승산 연산 방법이 제공된다. 본 발명의 실시예에 의한 유한체 곱셈 방법은 피승수와 승수를 일정 크기의 비트 단위로 구분하여 곱하는 단계와, 상기 곱셈 결과를 미리 저장된 이전 단계의 유한체 연산 결과와 더하는 단계 및 상기 덧셈 결과를 리덕션하는 단계를 포함한다.
타원곡선, 유한체, GF(P), 곱셈, 역승산-
公开(公告)号：KR1020120035073A
公开(公告)日：2012-04-13
申请号：KR1020100096567
申请日：2010-10-04
Applicant: 한국전자통신연구원
CPC classification number: G06F21/55 , G06F2207/7219
Abstract: PURPOSE: A method for arranging waveform data for analyzing a sub channel and a sub channel analyzing device using the same are provided to reduce time waste for wrongly setting an alignment parameter. CONSTITUTION: Initial parameters are automatically set for a determined test set(S420). Various alignment method is repetitively performed for the test set using the determined parameters. The most proper parameters are determined by obtaining a standard deviation of result sets per each alignment methods(S430). All waveform data are aligned using the determined alignment parameters(S440).
Abstract translation: 目的：提供一种用于布置用于分析子信道的波形数据和使用其的子信道分析装置的方法，以减少错误地设置对准参数的浪费。 规定：对于确定的测试集，自动设置初始参数（S420）。 使用确定的参数对测试集重复执行各种对准方法。 通过获得每个对齐方法的结果集合的标准偏差来确定最合适的参数（S430）。 使用确定的对准参数来对齐所有波形数据（S440）。
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公开(公告)号：KR1020120033635A
公开(公告)日：2012-04-09
申请号：KR1020100095259
申请日：2010-09-30
Applicant: 한국전자통신연구원
CPC classification number: G06Q50/00 , G06K9/46 , G06K17/0016
Abstract: PURPOSE: A material information providing apparatus and method thereof are provided to offer detail information related to materials to a user by using an RFID(Radio Frequency Identification) technology. CONSTITUTION: A photographing module(210) captures materials. A recognition module(220) recognizes objects corresponding to images of the material or a code including material information. A first access module(230) acquires the address of a material information server from a server by using the code or an object recognition result. A second access module acquires the material information by connecting to the material information server.
Abstract translation: 目的：提供材料信息提供装置及其方法，通过使用RFID（射频识别）技术向用户提供与材料相关的细节信息。 规定：拍摄模块（210）捕获材料。 识别模块（220）识别与材料的图像相对应的对象或包括材料信息的代码。 第一访问模块（230）通过使用代码或对象识别结果从服务器获取材料信息服务器的地址。 第二访问模块通过连接到材料信息服务器来获取材料信息。
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