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公开(公告)号：KR1020170122002A
公开(公告)日：2017-11-03
申请号：KR1020160051011
申请日：2016-04-26
Applicant: 한국전자통신연구원
Abstract: 본발명은암호데이터처리방법및 서버및 클라이언트에관한것이다. 본발명에따르면, 암호데이터를해쉬하여암호데이터식별자를생성하는단계; 상기생성한암호데이터식별자를서버로전송하는단계; 및상기서버로부터상기암호데이터의전송요청을수신하는경우, 상기암호데이터를상기서버로전송하는단계를포함하고, 상기서버는, 상기사용자단말로부터수신한상기암호데이터식별자와동일한식별자가존재하지않는경우에상기사용자단말에상기암호데이터의전송을요청하는, 암호데이터처리방법이제공된다.
Abstract translation: 密码数据处理方法和服务器及客户端技术领域本发明涉及密码数据处理方法和服 根据本发明，提供了一种加密数据的方法，包括：通过散列密码数据来生成密码数据标识符; 将生成的加密数据标识符发送给服务器; 并且当从服务器接收到用于传输加密数据的请求时将加密数据传输到服务器，其中服务器还包括以下步骤：当不存在与来自用户终端的接收到的密码数据标识符相同的标识符 并请求用户终端发送加密数据。
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公开(公告)号：KR1020150073753A
公开(公告)日：2015-07-01
申请号：KR1020130161797
申请日：2013-12-23
Applicant: 한국전자통신연구원
CPC classification number: H04L9/0861 , H04L9/008 , H04L9/14 , H04L9/3066 , H04L2209/30
Abstract: 본발명의일 실시예에따른압축암복호화장치는공개키, 비밀키및 압축비율을입력받는인터페이스, 평문을암호화및 복호화하는명령어를저장하는메모리및 명령어에따라평문을암호화및 복호화하는프로세서를포함하되, 명령어는공개키및 비밀키를압축비율에따라변경하여확장공개키및 확장비밀키를생성하는단계, 확장공개키를출력하는단계, 압축암호문을수신하는단계; 및확장비밀키와압축암호문의곱에대한나머지연산을통해압축암호문을복호화하는단계를수행하는명령어를포함하는것을특징으로한다.
Abstract translation: 根据本发明的实施例，压缩加密/解密装置包括：用于接收公钥，秘密密钥和压缩比的接口; 用于存储加密和解密明文的指令的存储器; 以及用于根据指令加密和解密明文的处理器，其中执行指令包括以下步骤：根据压缩比改变公钥和秘密密钥，以产生扩展公钥和扩展密钥; 输出扩展公钥; 接收压缩密文; 以及通过对扩展密钥和压缩密文的乘法进行截断来解密压缩的密文。
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公开(公告)号：KR1020140114933A
公开(公告)日：2014-09-30
申请号：KR1020130028582
申请日：2013-03-18
Applicant: 한국전자통신연구원
IPC: H03M7/30
CPC classification number: H04L9/0861 , H04L9/008 , H04L9/30
Abstract: The present invention relates to a homomorphic encryption which provides an operation function for original data only using public information such as encryption data and a public key without receiving corresponding private information for encrypted data so as to decrypt a plaintext only with the private information of a specific user. A compressed encryption and decryption providing system according to the present invention includes: a key generation module for receiving a predetermined stability reference value and compression ratio value and generating a public key and a private key to encrypt and decrypt plaintext information; an encryption module for compressing and encrypting the plaintext information using the generated public key; and a decryption module for decrypting the encrypted compressed ciphertext.
Abstract translation: 本发明涉及同形加密，其仅使用诸如加密数据和公共密钥之类的公共信息来提供原始数据的操作功能，而不接收相应的用于加密数据的私有信息，以便仅使用特定的私有信息解密明文 用户。 根据本发明的压缩加密和解密提供系统包括：密钥生成模块，用于接收预定的稳定性参考值和压缩比值，并产生用于加密和解密明文信息的公开密钥和私钥; 加密模块，用于使用所生成的公钥对所述明文信息进行压缩和加密; 以及用于解密加密的压缩密文的解密模块。
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公开(公告)号：KR1020140080722A
公开(公告)日：2014-07-01
申请号：KR1020120146238
申请日：2012-12-14
Applicant: 한국전자통신연구원
CPC classification number: H04L63/0407 , G06F7/588
Abstract: The present invention provides a method of safely implementing a privacy-preserving similarity search protocol using a third individual UTP having limited reliability. The UTP participates in a protocol and plays a role of an intermediate party that increases calculation efficiency without knowing privacy information on protocol participants. Employing the UPT enables construction of a practical privacy preserving similarity search system in the current computing environment. According to the present invention, even when the number of data is greater than the size of data information in a database included in a server, the privacy preserving similarity search protocol can be safely implemented using the UTP.
Abstract translation: 本发明提供一种使用具有有限可靠性的第三单独UTP来安全地实现保密性相似性搜索协议的方法。 UTP参与协议，起到中间方的作用，提高计算效率，而不需要知道协议参与者的隐私信息。 使用UPT可以在当前的计算环境中构建实用的隐私保护相似性搜索系统。 根据本发明，即使当数据数量大于包括在服务器中的数据库中的数据信息的大小时，可以使用UTP来安全地实现隐私保留相似性检索协议。
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公开(公告)号：KR1020130011791A
公开(公告)日：2013-01-30
申请号：KR1020110073199
申请日：2011-07-22
Applicant: 한국전자통신연구원
CPC classification number: G06K19/06112 , G06K7/10 , G06K7/1417 , G06K9/18
Abstract: PURPOSE: A generation device of a dynamic multidimensional code combining time information and visual recognition information, a recognition device and a method thereof are provided to display moving pictures or a dynamic advertisement including an image of original information in the dynamic multidimensional code, thereby easily grasping intended contents of the original information. CONSTITUTION: A preprocessing unit(100) receives original information and visual recognition information for generating a multidimensional code. A multidimensional code generation unit(102) encodes a dynamic multidimensional code by combining the original information and the visual recognition information corresponding to time. The visual recognition information is connected to the original information. The visual recognition information is changed corresponding to the time and is dynamic image information capable of recognition. [Reference numerals] (100) Preprocessing unit; (102) Multidimensional code generation unit; (104) Multidimensional code display unit; (120) Multidimensional code recognition unit; (122) Decoding unit
Abstract translation: 目的：提供一种结合时间信息和视觉识别信息的动态多维码的生成装置，识别装置及其方法，用于在动态多维码中显示包括原始信息的图像的动态图像或动态广告，从而容易地掌握 预期内容的原始信息。 构成：预处理单元（100）接收用于生成多维码的原始信息和视觉识别信息。 多维码生成单元（102）通过组合原始信息和对应于时间的视觉识别信息来对动态多维码进行编码。 视觉识别信息连接到原始信息。 视觉识别信息根据时间而变化，并且是能够识别的动态图像信息。 （附图标记）（100）预处理单元; （102）多维码生成单元; （104）多维码显示单元; （120）多维码识别单元; （122）解码单元
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Patent Agency Ranking
公开(公告)号：KR101174058B1
公开(公告)日：2012-08-16
申请号：KR1020080129287
申请日：2008-12-18
Applicant: 한국전자통신연구원
CPC classification number: G06F21/6227 , H04L9/00
Abstract: 암호화된데이터의저장및 검색방법에관한것으로, 데이터베이스에저장된데이터를암호화하는단계; 상기저장된데이터영역전체를버킷영역단위로분할하여, 분할된버킷영역각각에대한인덱스를할당하는단계; 상기암호화된데이터가속한버킷영역에서의순서정보를파악하는단계; 및상기암호화된데이터, 상기암호화된데이터가속한버킷영역의인덱스정보및 상기파악된순서정보를외부서버에저장하는단계;를포함하는것을특징으로하는데이터베이스의암호화된데이터저장방법에의해사용자의중요데이터베이스를외부서버에저장하는경우에데이터베이스에대한보안성을더욱강화함과동시에효율성을높일수 있는효과가있다.
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公开(公告)号：KR1020120061382A
公开(公告)日：2012-06-13
申请号：KR1020100122685
申请日：2010-12-03
Applicant: 한국전자통신연구원
IPC: G06K19/07
CPC classification number: G06Q20/4097
Abstract: PURPOSE: A traffic card having a privacy protecting function is provided to prevent illegal behavior which modifies, operates, and deletes traffic use information of a passenger. CONSTITUTION: Storing medium(152) stores authorization information which confirms signature information which is received from a traffic card terminal. A boarding processing unit(154) generates first signature information based on certification information and transmits the information to a terminal device. The boarding processing unit receives second signature information from the terminal device and confirms the information based on authorization information.
Abstract translation: 目的：提供具有隐私保护功能的交通卡，以防止修改，操作和删除乘客的交通使用信息的非法行为。 规定：存储介质（152）存储确认从业务卡终端接收到的签名信息的授权信息。 登机处理单元（154）基于认证信息生成第一签名信息，并将该信息发送给终端装置。 登机处理单元从终端装置接收第二签名信息，并基于授权信息确认信息。
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公开(公告)号：KR1020100070644A
公开(公告)日：2010-06-28
申请号：KR1020080129287
申请日：2008-12-18
Applicant: 한국전자통신연구원
CPC classification number: G06F21/6227 , H04L9/00
Abstract: PURPOSE: A method for saving and searching encrypted data on a database is provided to enhance the security of stored information when information is stored at an unreliable server which is not reliable by a user database. CONSTITUTION: Data stored at a database is encoded(S100), and the entire region of the stored data is split into a bucket unit, and the index is allocated to the split bucket regions(S120). The sequence information in a bucket region to which encoded data belong is recognized(S130). The encoded data, the index information and sequence information of the bucket region to which the encoded data belong are stored at an external server(S140).
Abstract translation: 目的：提供一种在数据库中保存和搜索加密数据的方法，以便在信息存储在用户数据库不可靠的不可靠服务器时增强存储信息的安全性。 构成：对存储在数据库中的数据进行编码（S100），将存储数据的整个区域分割为桶单位，并将索引分配给分割桶区域（S120）。 识别编码数据所属的存储区域中的序列信息（S130）。 编码数据所属的桶区域的编码数据，索引信息和序列信息存储在外部服务器（S140）。
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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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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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