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公开(公告)号：KR1020090065202A
公开(公告)日：2009-06-22
申请号：KR1020070132676
申请日：2007-12-17
Applicant: 한국전자통신연구원
CPC classification number: G06F17/30008
Abstract: An apparatus for acquiring memory data of a mobile terminal and a method thereof are provided to use the data stored at a memory of a terminal in an investigation agency efficiently. A format converting unit(110) converts binary data into the format having legal meaning, and generates an original case file. A file copying unit(120) generates a duplicate case file by copying the case file, and an integrity verifying unit(140) verifies the integrity of the copied case file. An effective data extracting unit(150) extracts effective data from the copied case file.
Abstract translation: 提供一种用于获取移动终端的存储器数据的装置及其方法，以有效地使用存储在调查机构中的终端的存储器上的数据。 格式转换单元（110）将二进制数据转换成具有合法含义的格式，并生成原始案例文件。 文件复制单元（120）通过复制案例文件生成复制案例文件，并且完整性验证单元（140）验证复制的案例文件的完整性。 有效数据提取单元（150）从复制的案例文件中提取有效数据。
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公开(公告)号：KR1020090064699A
公开(公告)日：2009-06-22
申请号：KR1020070131991
申请日：2007-12-17
Applicant: 한국전자통신연구원
CPC classification number: G06Q50/18 , G06F15/00 , G06F21/577 , H04L63/08 , H04W88/02
Abstract: A digital forensic server and a method thereof for evidence numeration providing the analysis work environment of a digital proof safe are provided to identify the identity of the person connecting to system and the analysis process and supply an environment capable of analyzing the collected digital proof data on the system. A communications unit(140) performs one or more terminal device for the evidence analysis and communication. An authentication unit(110) performs the authorization task about each connector from the terminal devices for the evidence analysis. An analysis working unit(120) provides the analysis work environment concerning the connector in which connection is tolerated by the authenticator. An analysis job recording unit(130) records the analysis work process where connector performs in the analysis work unit.
Abstract translation: 提供数字法医服务器及其提供数字证明安全分析工作环境的证据计数方法，以识别连接到系统和分析过程的人员的身份，并提供能够分析收集的数字证明数据的环境 系统。 通信单元（140）执行用于证据分析和通信的一个或多个终端设备。 认证单元（110）从用于证据分析的终端设备执行关于每个连接器的授权任务。 分析工作单元（120）提供关于由认证器容许连接的连接器的分析工作环境。 分析作业记录单元（130）记录连接器在分析工作单元中执行的分析工作过程。
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公开(公告)号：KR1020090058146A
公开(公告)日：2009-06-09
申请号：KR1020070124800
申请日：2007-12-04
Applicant: 한국전자통신연구원
CPC classification number: G11B20/10527 , G11B20/00086 , G11B20/00195 , G11B20/00702 , G11B2020/10546 , H04L9/3242
Abstract: A forgery-proof digital sound recorder is provided to protect the digital sound recording from the forgery by having prevention device for preventing writing control. A forgery-proof digital recorder device comprises: a voice input device for inputting the sound; a memory device(212) for storaging the input sounds from a digital sound date; a processor(208) for controlling to receive or send the digital sound data through a data; and a writhe protecting device(213) which is formed between the memory device. The write protecting device is to prevent the perform the writing control in the memory device.
Abstract translation: 提供防伪数字录音机，通过具有防止写入控制的防止装置来保护数字录音免受伪造。 防伪数字记录装置包括：用于输入声音的语音输入装置; 存储装置（212），用于从数字声音日期存储输入声音; 用于控制通过数据接收或发送数字声音数据的处理器（208）; 以及形成在所述存储装置之间的写入保护装置（213）。 写保护装置是防止在存储装置中执行写入控制。
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公开(公告)号：KR100848318B1
公开(公告)日：2008-07-24
申请号：KR1020060124134
申请日：2006-12-07
Applicant: 한국전자통신연구원
Abstract: 본 발명은 이동통신 시스템에서 사용자 비밀키 생성방법 및 그 장치에 관한 것으로, 자세히는 3GPP(3rd Generation Partnership Project) 방식의 이동통신 시스템에서 마스터 키인 사용자 비밀키를 검증된 암호 알고리즘과 안전한 메커니즘으로 생성하는 방법 및 그 장치에 관한 것이다. 본 발명은 사용자 비밀키를 생성하기 위해 운영자 비밀키, 랜덤정보, 사용자 정보를 그 입력으로 하며, 기본 구성 요소 함수로 해쉬 함수와 keyed 해쉬 함수 외에 비선형 압축함수, 선형변환, 확장함수, OFB 모드 블록암호 알고리즘을 사용한다. 본 발명에서의 사용자 비밀키 생성 알고리즘은 출력의 난수성, 일방향성 성질을 만족하며 또한 기반이 되는 암호 프리미티브에 따른 안전성을 만족한다. 또한 본 발명의 사용자 비밀키 생성 방법에 의할 때 상기 이동 통신 운영자는 자신의 운영자 비밀키와 사용자 정보만 바꾸어 운영함으로써 간단하게 안정성이 보장된 사용자 비밀키를 생성할 수 있게 된다.
사용자 비밀키, 블록 암호(block cipher), 해쉬 함수, keyed 해쉬 함수, 이동 통신 시스템-
公开(公告)号：KR100842261B1
公开(公告)日：2008-06-30
申请号：KR1020060110169
申请日：2006-11-08
Applicant: 한국전자통신연구원
Abstract: 본 발명에 의한 해쉬 알고리즘을 이용한 데이터생성방법은 단말기 고유번호값(ESN) 및 단말기 전화번호(MIN) 중 적어도 어느 하나를 기초로 생성된 복수개의 입력값을 해쉬함수에 입력하여 소정의 비트수를 가지는 해쉬값을 출력하는 해쉬알고리즘수행단계, 출력된 해쉬값의 비트수와 동일한 차수를 가지는 다항식을 이용하여 출력된 해쉬값과 동일한 비트수의 치환된 치환값을 얻는 치환단계, 치환값의 전부 또는 일부를 복수개의 입력값 중 적어도 어느 하나의 입력값으로 입력하여 다시 치환값을 얻거나 치환값의 일부 또는 전부를 데이터로 출력하는 출력단계를 포함한다. 본 발명에 의하면 다양한 종류의 해쉬함수를 이용하여 수많은 경우의 수를 가지는 데이터(공유비밀데이터, 인증값, 음성비화코드 및 시그널링 메시지 암호화키)를 얻을 수 있다.
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Patent Agency Ranking
公开(公告)号：KR1020080052092A
公开(公告)日：2008-06-11
申请号：KR1020060124134
申请日：2006-12-07
Applicant: 한국전자통신연구원
CPC classification number: H04L9/0869 , H04L9/0631 , H04L9/0643 , H04L9/0668 , H04L9/14 , H04W12/04
Abstract: A method and an apparatus for creating an user secret key in a mobile communication system are provided to create an user secret key which is a master key through a verified password algorithm and a secure mechanism in a mobile communication system of a third generation partnership project manner. A method and an apparatus for creating an user secret key in a mobile communication system includes a step of creating a key factor by inputting an operator secret key and a seed to a Hash function based on a block password(101). The created key factor is a key of algorithm of the block password. An input factor is created by operating the algorithm with an Output FeedBack mode by inputting user information for creating a user secret key into the algorithm of the block password(102). The created input factor is an input value of a keyed Hash function. The user secret key is created with the key factor which is the keyed Hash function(103).
Abstract translation: 提供了一种用于在移动通信系统中创建用户密钥的方法和装置，用于通过第三代合作伙伴项目方式的移动通信系统中的验证密码算法和安全机制来创建作为主密钥的用户秘密密钥 。 用于在移动通信系统中创建用户密钥的方法和装置包括通过基于块密码（101）将操作员密钥和种子输入到哈希函数来创建关键因素的步骤。 创建的关键因素是块密码算法的关键。 通过将用于创建用户密钥的用户信息输入到块密码（102）的算法中，通过使用输出反馈模式来操作算法来创建输入因子。 创建的输入因子是键控哈希函数的输入值。 用关键因素创建用户密钥，这是密钥哈希函数（103）。
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公开(公告)号：KR1020080050170A
公开(公告)日：2008-06-05
申请号：KR1020060121053
申请日：2006-12-01
Applicant: 한국전자통신연구원
Abstract: A role-based certification method applying transitivity is provided to achieve an efficient authentication process by applying a transitive signature to a role-based authentication system, improve accuracy of authentication by minimizing strings of a delegation chain, and protect privacy by exposing contents of the delegation chain at the minimum. Credential between a user or agency V(i) and V(j) is expressed as E(i,j). A user or agency V(i) has a secret key sk(i) and an open key V(i). An agency V(i) issues delegation credential E(i,j) to an agency V(j), wherein the E(i,j) is regarded as an edge of a graph. The agency V(i) combines the secret key sk(i) with secret key sk(j) of the agency V(j) for making the delegation credential E(i,j). The agency V(i) receives the secret key sk(j) of the agency V(j) through a trusted communication path for generating E(i,j) and transmitting the E(i,j) to the agency V(j). When a user A receives role credential R(k) from an agency V(k), a condition capable of accessing the agency V(i) is that the user A demonstrates that the user A has the delegation credential E(i,j), the credential E(j,k), and the role credential R(k) to an agency V(i). For the condition, the user A combines the credential E(i,j) and the credential E(j,k) for constituting E(i,k) by calculating E(i,k)=E(i,j)xE(j,k) and concatenating the result with the R(k).
Abstract translation: 提供了一种应用传递性的基于角色的认证方法，通过对基于角色的认证系统应用传输签名来实现有效的认证过程，通过最小化授权链的字符串来提高认证的准确性，并通过暴露授权的内容来保护隐私 链条至少。 用户或代理商V（i）和V（j）之间的凭证表示为E（i，j）。 用户或代理V（i）具有秘密密钥sk（i）和打开密钥V（i）。 代理V（i）向代理V（j）发出授权凭证E（i，j），其中E（i，j）被视为图的边。 代理V（i）将秘密密钥sk（i）与代理证书V（j）的秘密密钥sk（j）组合以进行授权凭证E（i，j）。 代理V（i）通过用于产生E（i，j）的可信任通信路径接收代理V（j）的秘密密钥sk（j），并将E（i，j）发送给代理V（j） 。 当用户A从代理V（k）接收角色凭证R（k）时，能够访问代理V（i）的条件是用户A证明用户A具有授权凭证E（i，j） ，凭证E（j，k）和代理V（i）的角色凭证R（k）。 对于该条件，用户A通过计算E（i，k）= E（i，j）×E（i，k）来组合凭证E（i，j）和用于构成E（i，k）的证书E（j，k） j，k）并将结果与R（k）连接起来。
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公开(公告)号：KR100753843B1
公开(公告)日：2007-08-31
申请号：KR1020060096434
申请日：2006-09-29
Applicant: 한국전자통신연구원
Abstract: A method for converting a key exchange protocol in a duplex channel into a key exchange protocol in a half-duplex channel is provided to facilitate conversion without increase of a network load by generating a new session key for a half-duplex channel without the change of contents of a transmission message of the key exchange protocol in the duplex channel. A method for converting a key exchange protocol in a duplex channel into a key exchange protocol in a half-duplex channel includes the steps of: converting a round message in the duplex channel into a round message in the half-duplex channel(S21); and applying a Pseudo random function to a session key of the round message in the duplex channel and a session identifier of the round message in the half-duplex channel and generating a session key for the round message in the half-duplex channel for a session corresponding to the identifier(S23).
Abstract translation: 提供了一种用于将半双工信道中的密钥交换协议转换为半双工信道中的密钥交换协议的方法，以通过在不增加网络负载的情况下生成用于半双工信道的新会话密钥来促进转换而不增加网络负载 双工信道中密钥交换协议的传输消息的内容。 一种用于将双工信道中的密钥交换协议转换为半双工信道中的密钥交换协议的方法，包括以下步骤：将半双工信道中的舍入消息转换为半双工信道中的舍入消息（S21）; 以及将伪随机函数应用于所述双工信道中的所述轮回消息的会话密钥和所述半双工信道中所述轮回消息的会话标识符，并在所述半双工信道中为所述会话生成所述轮回消息的会话密钥 对应于标识符（S23）。
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公开(公告)号：KR1020070062398A
公开(公告)日：2007-06-15
申请号：KR1020060072645
申请日：2006-08-01
Applicant: 한국전자통신연구원
CPC classification number: G06K19/145 , H04L9/3236 , H04L2209/38
Abstract: A device and a method for authenticating a tag in an RFID system are provided to reduce quantity of calculations for finding a tag ID in a backend database while protecting privacy of the tag and keeping conventional security functions. A database(431) stores grouped RFID tag information including secret group information and secret tag information. A secret group information searcher(433) finds a group of the tag requesting authentication by repeatedly calculating the secret group information stored in the database through a hash chain based on the hash algorithm and comparing the calculated value with a secret group information conversion value. A secret tag information searcher(435) searches whether the secret tag information of the tag requesting the authentication is found in the database by repeatedly calculating the secret tag information of the found group through the hash chain and comparing the calculated values with the secret tag information conversion value.
Abstract translation: 提供了用于在RFID系统中认证标签的装置和方法，以减少用于在后端数据库中找到标签ID的计算量，同时保护标签的隐私并保持常规的安全功能。 数据库（431）存储分组的RFID标签信息，包括秘密组信息和秘密标签信息。 秘密组信息搜索器（433）通过基于散列算法通过散列链重复计算存储在数据库中的秘密组信息，并将计算出的值与秘密组信息转换值进行比较，找到要求认证的标签组。 秘密标签信息搜索器（435）通过经由散列链重复计算找到的组的秘密标签信息来搜索请求认证的标签的秘密标签信息是否被发现在数据库中，并将计算的值与秘密标签信息进行比较 转换价值。
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公开(公告)号：KR100450766B1
公开(公告)日：2004-10-01
申请号：KR1020020062076
申请日：2002-10-11
Applicant: 한국전자통신연구원
IPC: H04L9/00
Abstract: PURPOSE: An encrypting and decrypting method using cellular automata and an apparatus for the same are provided to encrypt and decrypt input data by using structural merits of multi-dimensional cellular automata. CONSTITUTION: A multi-dimensional space is formed by using a plurality of triangular cells(201). Binary digits having predetermined bits are assigned to the triangular cells, respectively(202). Each value of the triangular cells is updated according to the flow of discrete time and a binary random progression is formed by using each value of the triangular cells(207). An encryption process is performed by executing a logical operation for the binary random progression and a plain text binary progression(208).
Abstract translation: 目的：提供一种使用元胞自动机的加密和解密方法及其装置，以利用多维元胞自动机的结构优点对输入数据进行加密和解密。 构成：通过使用多个三角形单元（201）形成多维空间。 具有预定比特的二进制数字分别被分配给三角形单元（202）。 根据离散时间的流程更新三角形单元的每个值，并且通过使用三角形单元的每个值形成二进制随机级数（207）。 通过对二进制随机进展和纯文本二进制进程执行逻辑运算来执行加密过程（208）。
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