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公开(公告)号：KR100423811B1
公开(公告)日：2004-03-22
申请号：KR1020010078588
申请日：2001-12-12
Applicant: 한국전자통신연구원
IPC: G09C1/00
CPC classification number: H04L9/0625 , H04L2209/125 , H04L2209/24
Abstract: Disclosed is an encryption apparatus applying a KASUMI encryption algorithm. In the encryption apparatus, a round circuit is constructed through combination of an FL block with an FO block. The FL and FO blocks separate a secret key defined in the KASUMI encryption algorithm and provided from a secret key scheduler and 64-bit text data into 32-bit data, respectively, and perform specified encryption operation functions. The FO block is constructed through a multistage pipeline using a plurality of pipeline registers. The encryption apparatus has a low power consumption, and is small-sized in comparison to the conventional encryption apparatus using the MISTY or DES encryption algorithm. Also, the encryption apparatus can be applied to portable terminals and high-performance servers that require the low power consumption and the small size.
Abstract translation: 公开了应用KASUMI加密算法的加密设备。 在加密装置中，通过将FL块与FO块组合来构造回合电路。 FL和FO块分别将在KASUMI加密算法中定义并从密钥调度程序提供的密钥和64位文本数据分离为32位数据，并执行指定的加密操作功能。 FO块通过使用多个流水线寄存器的多级流水线来构建。 与使用MISTY或DES加密算法的传统加密设备相比，加密设备具有低功耗并且尺寸小。 而且，加密装置可以应用于需要低功耗和小尺寸的便携式终端和高性能服务器。
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公开(公告)号：KR1020030059500A
公开(公告)日：2003-07-10
申请号：KR1020010088363
申请日：2001-12-29
Applicant: 한국전자통신연구원
IPC: H04L9/06
CPC classification number: H04L9/0631 , H04L9/0625 , H04L9/0662
Abstract: PURPOSE: A pseudo-random generator using a block password having an SPN structure and a method thereof are provided to improve a stability side by changing a key value through an update algorithm each time a random is generated. CONSTITUTION: A reseeding module(102) collects a noise suited to each platform. The reseeding module(102) generates a key value based on noise information. The key value is used as an input of a random function. A pseudo-random generating module(104) includes two random function value converters. The pseudo-random generating module(104) uses the key value and a state value as inputs of the first random function value converter to generate the first random function value. The pseudo-random generating module(104) uses the first random function value and the key value as inputs of the second random function value converter to generate the first random function value to generate the second random function value. The pseudo-random generating module(104) outputs the second random function value as a pseudo-random value.
Abstract translation: 目的：提供一种使用具有SPN结构的块密码及其方法的伪随机生成器，以通过每当产生随机时通过更新算法改变键值来改善稳定性侧。 构成：再接种模块（102）收集适合于每个平台的噪声。 重新进给模块（102）基于噪声信息生成键值。 键值用作随机函数的输入。 伪随机生成模块（104）包括两个随机函数值转换器。 伪随机生成模块（104）使用键值和状态值作为第一随机函数值转换器的输入来生成第一随机函数值。 伪随机生成模块（104）使用第一随机函数值和键值作为第二随机函数值转换器的输入来生成第一随机函数值以生成第二随机函数值。 伪随机生成模块（104）将第二随机函数值作为伪随机值输出。
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公开(公告)号：KR1020020081885A
公开(公告)日：2002-10-30
申请号：KR1020010021336
申请日：2001-04-20
Applicant: 한국전자통신연구원
IPC: G06F7/58
Abstract: PURPOSE: A nonlinear random number series generation device is provided to receive different number series from an FCSR(Feedback with Carry Shift Register), and to search for a corresponding random number series in an S-BOX(Substitution Box), a table of a random number having a good SAC(Strict Avalanch Criterion) characteristic so that it can be applied at a digital signature or an identification check in an electronic document transaction system. CONSTITUTION: The device comprises a plurality of FCSRs(210), a S-BOX(220), and a logic operator(230). The FCRSs(210) generate 8 bit nonlinear random number series, and transmit the 8 bit nonlinear random series to the logical operator(230). The logical operator(230) searches for a nonlinear random series in the S-BOX(220) corresponding to the transmitted 8 bit nonlinear random series. For example, in a case that a 8 bit binary value of the 8 bit nonlinear random number series is "abcdefgh", the logical operator(230) selects a row in the S-BOX(220) corresponding to the former 4 bit("abcd") and a column in the S-BOX(220) corresponding to the latter 4 bit("efgh"). Then, the logical operator(230) generates a 8 bit random number at a point where the column and the row cross in the S-BOX(220).
Abstract translation: 目的：提供一种非线性随机数序列生成装置，用于从FCSR（带进位移位寄存器的反馈）接收不同的数字序列，并在S-BOX（Substitution Box）中搜索相应的随机数字序列， 具有良好的SAC（严格雪崩准则）特征的随机数，使得其可以在电子文档交易系统中的数字签名或识别检查中应用。 构成：该装置包括多个FCSR（210），S-BOX（220）和逻辑运算器（230）。 FCRS（210）生成8位非线性随机数序列，并将8位非线性随机序列发送到逻辑运算符（230）。 逻辑运算符（230）在对应于所发送的8位非线性随机序列的S-BOX（220）中搜索非线性随机序列。 例如，在8位非线性随机数序列的8位二进制值为“abcdefgh”的情况下，逻辑运算符（230）选择与前4位对应的S-BOX（220）中的行（“ abcd“）和对应于后4位（”efgh“）的S-BOX（220）中的列。 然后，逻辑运算器（230）在S-BOX（220）中列和行交叉的点处产生8位随机数。
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公开(公告)号：KR101727312B1
公开(公告)日：2017-04-14
申请号：KR1020100132384
申请日：2010-12-22
Applicant: 한국전자통신연구원
CPC classification number: H04L9/002 , H04L9/0662
Abstract: 본발명은유사난수발생기를활용하여기준점을생성하고, 기준점을이용하여암호문을생성함으로써, 서버에저장량과계산량의부담을주지않는순서보존암호화를가능할수 있도록한다는것이다. 이를위하여본 발명의실시예에따른순서보존암호화장치는평문전체공간과암호문전체공간을제공하며, 암호화에필요한비밀키와기준점생성을위한유사난수발생기를설정할수 있는인터페이스를제공하는초기화부와, 비밀키를설정된유사난수발생기에적용하여평문에대한기준점을생성하는기준점생성부와, 생성된기준점과평문간의비교를통해암호문의비트를생성하는암호문생성부와, 암호문에따라평문전체공간의크기및 평문의크기를조정하는평문조정부를포함할수 있다.
Abstract translation: 本发明使用伪随机数发生器产生参考点，并使用参考点产生密文，从而实现了不会给存储和计算量带来负担的顺序保存加密。 和初始化单元根据本发明的一个实施例何种顺序保存加密装置提供接口以设置伪随机数发生器，用于明文提供全区域和密文整个空间，私钥和基点生成用于加密用于此目的， 以及将所述秘密密钥的伪随机数发生器被设置为密文来生成用于通过将所生成的控制点和明文生成部之间的比较而产生的纯文本，密码，接触位的基点的基点发生器，根据密文明文整个区域的大小 还有一个用于调整扁平方块大小的明文调整单元。
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公开(公告)号：KR101454469B1
公开(公告)日：2014-10-24
申请号：KR1020110134813
申请日：2011-12-14
Applicant: 한국전자통신연구원
Abstract: 본 발명은 SHA-1 해쉬값 계산을 위해 64바이트 데이터 세그먼트로부터 4바이트 변수들로 구성된 배열을 생성하는 과정에서, 배열 중에서 배열값이 상수인 항목을 검출하는 단계 및 배열값이 상수인 항목을 배열에서 제외하는 단계를 포함하는 것을 특징으로 한다.
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Patent Agency Ranking
公开(公告)号：KR101407060B1
公开(公告)日：2014-06-13
申请号：KR1020100105346
申请日：2010-10-27
Applicant: 한국전자통신연구원
IPC: G06F19/00
CPC classification number: G06F17/30864
Abstract: 디지털 증거 자료 수집을 위한 데이터 분석 및 증거화 방법과 시스템이 개시된다. 데이터의 수집 대상이 되는 대상 장치로부터 사용 히스토리 정보를 수집하여 분석하고, 사용 히스토리 정보에 기초하여 인터넷상의 데이터를 다운로드하여 수집하고, 수집된 데이터에 대한 시점확인 토큰 발급을 요청하여 발급된 시점확인 토큰을 수령하는 온라인 데이터 포렌식 서버, 시점확인 토큰 발급 요청에 대응하여 수집된 데이터에 대한 시점확인 토큰을 발급하여 온라인 데이터 포렌식 서버로 제공하는 시점확인 토큰 발급 서버 및 수집된 데이터를 저장하는 저장 장치를 포함하여 데이터 분석 및 증거화 시스템를 구성한다. 본 발명에 따른 방법 및 시스템을 이용할 경우에는 수집되는 온라인 데이터에 대해 시점확인 토큰을 발급 받음으로써, 수집된 온라인 데이터가 과거 특정 시점으로부터 수집 시점까지 온라인 상의 해당 주소에 존재했으며, 수집 시점 이후로부터 수집된 데이터가 변경되지 않았음을 용이하게 증명할 수 있다.
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公开(公告)号：KR1020130085505A
公开(公告)日：2013-07-30
申请号：KR1020110134165
申请日：2011-12-14
Applicant: 한국전자통신연구원
CPC classification number: H04L63/302 , G06F21/60 , G06Q50/18
Abstract: PURPOSE: An e-discovery device of an information leakage preventing system is provided to prevent the information leakage within a company and is provided to be prepared with the cause analysis and responding function of an information leakage accident when the information leakage accident is occurred. CONSTITUTION: A common block (200) comprises a leakage accident preparation module and a leakage accident post response module. The leakage accident post response module prepares with the data for investigating the cause of the information leakage accident. The leakage accident post response module performs the investigation about the information leakage accident. A litigation exclusive block (210) calculates the evidence of litigation of the information leakage into the predetermined format. The litigation exclusive block visualizes the calculated evidence. The litigation exclusive block destroys the information about the calculated evidence based on the predetermined policy. [Reference numerals] (100) Integrate PC security block; (120) N/W transmitting signal control block; (140) Physical device security block; (160) Data base security block; (210) Litigation exclusive block; (220) Common block; (230) Leakage accident preparation response module; (240) Leakage accident post response module; (AA) E-discovery; (BB) Information leakage prevention system; (CC) Information management; (D1) Response strategy establishment; (D2) Collection; (D3) Storage; (D4) Process; (D5) Review and analysis; (E1) Calculation; (E2) Sending and breaking; (F1) Physical device use control; (F2) Printer/fax original text storage; (F3) I/O interface access and use information record identification; (G1) File life cycle management; (G2) PMS/personal fire wall/hacking tool detection; (G3) File auto encryption; (G4) File search in a PC; (G5) File access/use logging; (G6) File original text storage; (G7) Main service use logging; (H1) H1 mail attachment file control; (H2) N/W packet monitoring; (H3) Content control; (H4) Key word unit monitor/stop; (H5) File system level detection; (H6) Mail/message logging; (H7) Use control on services; (H8) N/W packet capturing; (I1) DB access control; (I2) DB decoding; (I3) DB access logging
Abstract translation: 目的：提供信息泄漏防护系统的电子发现装置，以防止公司内的信息泄漏，并提供信息泄漏事故发生时的信息泄露事故的原因分析和响应功能。 构成：一个共同的块（200）包括泄漏事故准备模块和泄漏事故后响应模块。 泄漏事故后响应模块准备了调查信息泄露事故原因的数据。 泄漏事故后响应模块对信息泄漏事故进行调查。 诉讼排他性块（210）将信息泄露的诉讼证据计算为预定格式。 诉讼专用块可视化计算的证据。 诉讼独占方式根据预定政策破坏有关计算证据的信息。 （附图标记）（100）集成PC安全块; （120）N / W发射信号控制块; （140）物理设备安全块; （160）数据库安全块; （210）诉讼专用块; （220）普通块; （230）泄漏事故准备响应模块; （240）泄漏事故后响应模块; （AA）电子发现; （BB）信息泄漏防范系统; （CC）信息管理; （D1）响应策略建立; （D2）收藏; （D3）储存; （D4）工艺; （D5）审查和分析; （E1）计算; （E2）发送和断开; （F1）物理设备使用控制; （F2）打印机/传真原始文本存储; （F3）I / O接口访问和使用信息记录识别; （G1）文件生命周期管理; （G2）PMS /个人防火墙/黑客工具检测; （G3）文件自动加密; （G4）在PC中进行文件搜索; （G5）文件访问/使用日志; （G6）文件原文储存; （G7）主要服务使用记录; （H1）H1邮件附件文件控制; （H2）N / W数据包监控; （H3）内容控制; （H4）关键字单元监视/停止; （H5）文件系统级检测; （H6）邮件/邮件记录; （H7）使用对服务的控制; （H8）N / W数据包捕获; （I1）DB访问控制; （I2）DB解码; （I3）DB访问记录
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公开(公告)号：KR1020130085482A
公开(公告)日：2013-07-30
申请号：KR1020110130823
申请日：2011-12-08
Applicant: 한국전자통신연구원
CPC classification number: G06F21/6245 , G06F11/3438 , G06F21/32 , H04L9/3231
Abstract: PURPOSE: A security strengthened digital forensic device is provided to protect the user privacy by permitting only the authorized administrator to access to the collected forensic data. CONSTITUTION: A fingerprint registration unit (120) registers the registered fingerprint, which will be registered for the user authorization process, by receiving from the authorized administrator. A fingerprint authorization unit (130) compares the authorized fingerprint, which is received from the user for the user authorization process, with the pre-registered fingerprint. The fingerprint authorization unit performs the user authorization process depending on the satisfaction of the predetermined condition. A database unit (140) stores the forensic data which is collected by the forensic data collecting unit. If the user authorization process succeeds, a forensic data analysis unit (150) analyzes the forensic data which is stored in the database unit. [Reference numerals] (100) Digital forensic device; (11) User computer 1; (111,113,115) Forensic data collection unit; (120) Fingerprint registration unit; (13) User computer 2; (130) Fingerprint authorization unit; (140) Database unit; (15) User computer N; (150) Forensic data analysis unit; (20) Registration fingerprint; (30) Authorization fingerprint
Abstract translation: 目的：提供安全加强的数字取证设备，以保护用户隐私，只允许授权管理员访问收集的法医数据。 构成：指纹登记单元（120）通过从授权管理员的接收登记注册用户授权处理的登记指纹。 指纹授权单元（130）将从用户授权处理的用户接收到的授权指纹与预先登记的指纹进行比较。 指纹授权单元根据预定条件的满足来执行用户授权处理。 数据库单元（140）存储由法医数据收集单元收集的取证数据。 如果用户授权过程成功，则法医数据分析单元（150）分析存储在数据库单元中的取证数据。 （附图标记）（100）数字取证装置; （11）用户计算机1; （111,113,115）法医数据收集单位; （120）指纹登记单位; （13）用户计算机2; （130）指纹授权单元; （140）数据库单元; （15）用户计算机N; （150）法医数据分析单位; （20）注册指纹; （30）授权指纹
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公开(公告)号：KR1020130062667A
公开(公告)日：2013-06-13
申请号：KR1020110129062
申请日：2011-12-05
Applicant: 한국전자통신연구원
IPC: G06F17/30
CPC classification number: G06F17/30106
Abstract: PURPOSE: A file search device using attribute information and a method thereof are provided to suggest files corresponding to a user query in real time by generating a multi index database according to each attribute of the files. CONSTITUTION: An attribute extracting unit(104) extracts attribute information through the analysis of files, a distributed index generating unit(106) generates an index database by attribute by using the attribute information, and a storage unit(110) stores the index database. If a query is inputted, a file search unit(114) searches for the storage unit for an index database corresponding to the query to generate a search result. If the files are not compressed files, a file classifying unit(100) supplies the files to an attribute extracting unit. If the files are compressed files, a decompressing unit(102) decompresses the files to supply the same to the attribute extracting unit. [Reference numerals] (100) File classifying unit; (102) Decompressing unit; (104) Attribute extracting unit; (106) Distributed index generating unit; (108) Distributed index managing unit; (112) Query analyzing unit; (114) File search unit; (116) Graphic output unit; (118) Doubtful file processing unit
Abstract translation: 目的：提供使用属性信息的文件搜索装置及其方法，通过根据文件的每个属性生成多索引数据库来实时地建立与用户查询相对应的文件。 构成：属性提取单元（104）通过文件分析提取属性信息，分布式索引生成单元（106）通过使用属性信息通过属性生成索引数据库，存储单元（110）存储索引数据库。 如果输入了查询，则文件搜索单元（114）搜索与该查询对应的索引数据库的存储单元以生成搜索结果。 如果文件不是压缩文件，则文件分类单元（100）将文件提供给属性提取单元。 如果文件是压缩文件，则解压缩单元（102）解压缩文件以将其提供给属性提取单元。 （附图标记）（100）文件分类单元; （102）解压单元; （104）属性提取单元; （106）分布式索引生成单元; （108）分布式索引管理单元; （112）查询分析单元; （114）文件搜索单元; （116）图形输出单元; （118）可疑文件处理单元
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公开(公告)号：KR1020130053838A
公开(公告)日：2013-05-24
申请号：KR1020110119515
申请日：2011-11-16
Applicant: 한국전자통신연구원
IPC: G06F17/00
Abstract: PURPOSE: A familiarity calculating device and a method thereof are provided to accurately calculate familiarity between a user and an interlocutor by calculating the familiarity based on time importance and a weighted value. CONSTITUTION: An information extracting unit(120) extracts a communication use record for communication with contact information in a wireless terminal. A weighted value setting unit(122) sets a weighted value to each contact in the contact information and the communication use record. A time importance setting unit(124) sets up time importance to the communication use record based on service execution time of the communication use record. A familiarity calculating unit(126) calculates familiarity by the communication use record based on the time importance and the weighted value to calculate familiarity between a user of the wireless terminal and an interlocutor corresponding to the contact information. [Reference numerals] (100) Communication history DB; (110) Address list DB; (120) Information extracting unit; (122) Weighted value setting unit; (124) Time importance setting unit; (126) Familiarity calculating unit; (128) Display unit
Abstract translation: 目的：提供熟悉度计算装置及其方法，以通过基于时间重要性和加权值计算熟悉度来准确计算用户和对话者之间的熟悉程度。 构成：信息提取单元（120）提取用于与无线终端中的联系人信息通信的通信使用记录。 加权值设定单元（122）对联系人信息和通信用记录中的每个联系人设定加权值。 时间重要性设定单元（124）基于通信使用记录的服务执行时间设定通信使用记录的时间重要性。 熟悉度计算单元（126）基于时间重要性和加权值计算通信使用记录的熟悉度，以计算无线终端的用户与对应于该联系人信息的对话者之间的熟悉度。 （附图标记）（100）通信历史DB; （110）地址列表DB; （120）信息提取单元; （122）加权值设定单位; （124）时间重要性设定单位; （126）熟练度计算单位; （128）显示单元
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