유한체 상의 두 원소의 곱을 구하는 직렬-병렬 곱셈기
    31.
    发明公开
    유한체 상의 두 원소의 곱을 구하는 직렬-병렬 곱셈기 失效
    串行并行乘法器查找有限域上的两个元素的乘法

    公开(公告)号:KR1020040055550A

    公开(公告)日:2004-06-26

    申请号:KR1020030013788

    申请日:2003-03-05

    Abstract: PURPOSE: A serial-parallel multiplier finding out the multiplication of two elements on a finite field is provided to quickly find out the multiplication of two elements on finite field by performing the modular subtraction for each operation result again after respectively multiplying the divided two multipliers to a multiplicand. CONSTITUTION: A multiplexer(11) alternatively outputs the first and the second multiplier data depending on a selection signal by receiving the multiplier data in parallel. A half multiplier(12) outputs the first operation value by multiplying the first multiplier to the multiplicand data and performing the modular operation, and outputs the second operation value by multiplying the second multiplier to the multiplicand data and performing the modular operation. A storage(13) stores the first operation value at the first cycle and outputs the stored value at the second cycle depending on a clock doubled to the selection signal. A modular subtracter(14) performs the modular subtraction for subtracting the received first operation value from the second operation value.

    Abstract translation: 目的:提供一个串行和并行乘法器,找出有限域上的两个元素的乘法,以便通过在将分割的两个乘法器分别乘以后,再次对每个运算结果执行模式减法,快速找出有限域上的两个元素的乘法 被乘数 构成:多路复用器(11)通过并行地接收乘法器数据来交替地输出取决于选择信号的第一和第二乘法器数据。 半乘法器(12)通过将第一乘法器与被乘数数据相乘并执行模数运算来输出第一运算值,并且通过将第二乘法器乘以乘法数据并执行模数运算来输出第二运算值。 存储器(13)在第一周期存储第一操作值,并且根据与选择信号相加的时钟在第二周期输出存储的值。 模块减法器(14)执行模式减法,以从第二操作值减去接收到的第一操作值。

    정수 기반 준동형 암호 기법에서 압축 암복호화를 제공하는 시스템 및 방법
    33.
    发明授权
    정수 기반 준동형 암호 기법에서 압축 암복호화를 제공하는 시스템 및 방법 有权
    基于恒定同态加密的系统和方法,以提供压缩解密

    公开(公告)号:KR101795771B1

    公开(公告)日:2017-11-09

    申请号:KR1020130028582

    申请日:2013-03-18

    CPC classification number: H04L9/0861 H04L9/008 H04L9/30

    Abstract: 본발명은특정사용자의비밀정보로만평문정보를복원할수 있도록암호화된데이터에대해해당비밀정보를제공받지않고암호데이터와공개키와같은공개된정보만사용하여원본데이터에대한연산기능을제공하는기술인준동형암호(homomorphic encryption)에관한것이다. 본발명에따른압축암복호화제공시스템은미리결정된안정성기준값 및압축비율값을입력받고평문정보를암복호화하기위한공개키및 비밀키를생성하는키 생성모듈; 상기생성된공개키를이용하여상기평문정보를압축암호화하는암호화모듈; 및상기암호화된압축암호문을상기생성된비밀키를이용하여복호화하는복호화모듈을포함한다.

    Abstract translation: 本发明是一种技术,不提供用于对加密的数据这样的机密信息,以便它可以仅使用公共信息来恢复明文信息只,一个特定的用户的分类的信息,例如密码,数据以及上述公开密钥提供的计算功能,以将原始数据 这是关于同态加密。 压缩解密系统被提供预定的安全基准值和用于接收压缩比值,生成公共密钥和私有密钥根据本发明解密明文信息臂密钥产生模块; 加密模块,用于使用所生成的公钥来压缩和加密明文信息; 以及解密模块,用于使用所生成的秘密密钥对加密的压缩密文进行解密。

    준동형 암호화 기법을 이용한 경매 서비스 제공 장치 및 방법
    34.
    发明公开
    준동형 암호화 기법을 이용한 경매 서비스 제공 장치 및 방법 审中-实审
    使用扰动密码术提供拍卖服务的设备和方法

    公开(公告)号:KR1020170103323A

    公开(公告)日:2017-09-13

    申请号:KR1020160025954

    申请日:2016-03-03

    Abstract: 준동형암호화기법을이용한경매서비스제공장치및 방법이개시된다. 본발명에따른준동형암호화기법을이용한경매서비스제공장치는, 복수의입찰자단말기들로부터, 준동형암호화기법으로암호화된복수의입찰정보들을수신하는입찰정보수신부, 수신된상기복수의입찰정보들을정렬하여, 경매의종류에상응하는입찰정보를낙찰정보로선택하는낙찰정보선택부, 그리고암호화된상기낙찰정보를낙찰정보제공장치로전송하는낙찰정보전송부를포함하며, 상기입찰정보는, 입찰금액및 입찰자식별정보를포함하고, 상기낙찰정보제공장치는, 비밀키를이용하여상기낙찰정보를복원하고, 복원된상기낙찰정보에상응하는낙찰금액및 낙찰자를출력하는것을특징으로한다.

    Abstract translation: 公开了一种使用扰动加密技术提供拍卖服务的设备和方法。 使用同态加密方式提供了根据本发明装置的拍卖服务,从多个投标者终端,投标信息接收单元,用于接收加密多路拍卖信息作为同态加密方式,排序所接收的多个投标的 并且,它包括的投标信息部分发送,出价信息将被发送到中标信息选择单元,和中标加密的投标信息,用于选择对应于拍卖出价信息的类型,出价金额的投标信息提供装置中的信息,和 并且中标人信息提供设备使用秘密密钥恢复中标信息,并且输出与中标投标信息和中标人相对应的中标金额。

    시간 인증이 가능한 스트리밍 데이터 전송 방법
    35.
    发明公开
    시간 인증이 가능한 스트리밍 데이터 전송 방법 审中-实审
    采用时间认证的流式数据传输方法

    公开(公告)号:KR1020170081501A

    公开(公告)日:2017-07-12

    申请号:KR1020160000618

    申请日:2016-01-04

    Abstract: 서버에서의스트리밍데이터전송방법은, 스트리밍데이터를생성하는단계, 상기스트리밍데이터에포함된각 데이터블록에대해, 대응하는데이터블록및 상기대응하는데이터블록의생성시간정보를포함하는데이터스트림을생성하는단계, 상기각 데이터블록에대응하는데이터스트림을시간인증서버로전송하는단계, 상기각 데이터블록의상기생성시간정보에대해, 상기카멜레온해시함수를이용하여생성된시간인증정보를상기시간인증서버로부터수신하는단계, 그리고상기각 데이터블록에대응하는데이터스트림에상기시간인증정보를포함시켜사용자단말로전송하는단계를포함할수 있다.

    Abstract translation: 流数据发送方法eseoui服务器,生成所述流数据的步骤,所述方法包括:对于每个数据块包括在所述流数据,产生数据流包括对应的数据块和数据块的对应于该生成时间信息 上述用于每个数据块的创建时间信息的步骤中,变色龙产生的时间使用中的功能的验证信息,以对应于每个数据块的时间的认证服务器的传输数据流,从时间的认证服务器, 通过在数据流中包含时间认证信息,将对应于每个数据块的数据流发送给用户终端。

    프라이버시 보호형 문서 인증 정보 생성 장치 및 이를 이용한 프라이버시 보호형 문서 인증 방법
    37.
    发明公开
    프라이버시 보호형 문서 인증 정보 생성 장치 및 이를 이용한 프라이버시 보호형 문서 인증 방법 审中-实审
    用于生成隐私保护文件认证信息的方法和使用该隐私保护文档的隐私保护文档认证方法

    公开(公告)号:KR1020140108749A

    公开(公告)日:2014-09-15

    申请号:KR1020130021262

    申请日:2013-02-27

    CPC classification number: G06F21/64

    Abstract: Provided are a device for privacy protection document authentication information using various privacy protection electronic signatures and multidimensional codes and a method for authenticating a privacy protection document using the same. The provided device comprises: an electronic signature information generation unit to generate privacy protection electronic signature information about document content; a multidimensional code generation unit to generate a multidimensional code corresponding to the generated privacy protection electronic signature information; and a multidimensional code output unit to output the generated multidimensional code to a document. According to the device of the present invention, a privacy protection electronic signature value generated by a personalized smart device can be output to a physical document in the form of a multidimensional code to authenticate the document.

    Abstract translation: 提供了一种使用各种隐私保护电子签名和多维码的隐私保护文档认证信息的设备以及使用其进行认证的隐私保护文档的方法。 所提供的设备包括:电子签名信息生成单元,用于生成关于文档内容的隐私保护电子签名信息; 多维代码生成单元,用于生成与生成的隐私保护电子签名信息对应的多维代码; 以及多维代码输出单元,用于将生成的多维代码输出到文档。 根据本发明的装置,由个性化智能设备生成的隐私保护电子签名值可以以多维代码的形式被输出到物理文档以对该文档进行认证。

    송신 메시지 연결성을 제공하는 익명 인증 및 키 합의 장치 및 방법
    38.
    发明公开
    송신 메시지 연결성을 제공하는 익명 인증 및 키 합의 장치 및 방법 审中-实审
    基于匿名认证的设备和方法与消息绑定特性的关键协议

    公开(公告)号:KR1020140079544A

    公开(公告)日:2014-06-27

    申请号:KR1020120146909

    申请日:2012-12-14

    Abstract: Provided are an apparatus and a method for anonymity-based authentication and key agreement which are capable of providing transmission message binding properties, which ensure that the messages received via a plurality of rounds by participants who desire key agreement as well as anonymity have been sent by the same counterpart participants. The provided apparatus comprises: a signature verification unit which receives a plurality of messages, each carrying a signature generated based on link information of a sender, and verifies the signature of each of the messages; and a binding checking unit which determines whether the messages have been sent by an identical sender, if it is determined by the signature verification unit that the signature is valid, based on the link information of the signature.

    Abstract translation: 提供了一种能够提供传输消息绑定属性的基于匿名的认证和密钥协商的装置和方法,其确保通过由密码协商和匿名的参与者通过多个回合接收的消息已经由 同样的对手参加。 所提供的装置包括:签名验证单元,其接收多个消息,每个消息携带基于发送者的链接信息生成的签名,并且验证每个消息的签名; 以及绑定检查单元,其基于签名的链接信息,如果由签名验证单元确定签名是有效的,则确定消息是否已被相同发送者发送。

    인덱스 검증과 추적이 가능한 다자간 환경에서의 검색 가능 암호 시스템 및 방법
    39.
    发明公开
    인덱스 검증과 추적이 가능한 다자간 환경에서의 검색 가능 암호 시스템 및 방법 无效
    具有索引验证和跟踪的多用户可搜索加密系统及其方法

    公开(公告)号:KR1020130085491A

    公开(公告)日:2013-07-30

    申请号:KR1020110132068

    申请日:2011-12-09

    CPC classification number: H04L9/0861 H04L9/3073

    Abstract: PURPOSE: A search available password system at multilateral environment capable of the index verification and tracking and a method thereof are provided to verify the index which is produced by each user, in the data based in which a plurality of user uses at the same time, and are provided to track the user who produced the index. CONSTITUTION: A key distribution center (200) distributes a personal secret key to a user (S102). The key distribution center tracks the information about a user who produced the index (S112). A user terminal device (204) produces the index for searching the database by using the personal secret key (S104). A database (DB) server (202) verifies the index which is produced in the user terminal. The DB server searches and provides the data which corresponds to the verified index (S110). [Reference numerals] (200) Key distribution center; (202) Database (DB) server; (204) User terminal device; (AA) System parameter generation; (BB) Public key distribution; (S104) Index generation; (S106) Index verification; (S108) Trap door generation; (S110) Searching; (S112) Tracing

    Abstract translation: 目的:提供能够进行索引验证和跟踪的多边环境下的搜索可用密码系统及其方法,用于在多个用户同时使用的数据中验证由每个用户产生的索引, 并且被提供以跟踪产生索引的用户。 构成:密钥分配中心(200)向用户分配个人秘密密钥(S102)。 密钥分配中心跟踪有关生成索引的用户的信息(S112)。 用户终端设备(204)通过使用个人秘密密钥产生用于搜索数据库的索引(S104)。 数据库(DB)服务器(202)验证在用户终端中产生的索引。 DB服务器搜索并提供与验证索引对应的数据(S110)。 (附图标记)(200)钥匙配送中心; (202)数据库(DB)服务器; (204)用户终端设备; (AA)系统参数生成; (BB)公钥分发; (S104)索引生成; (S106)索引验证; (S108)陷阱门生成; (S110)搜索; (S112)追踪

    짧은 서명을 제공하는 경량 그룹서명 방법 및 장치
    40.
    发明公开
    짧은 서명을 제공하는 경량 그룹서명 방법 및 장치 有权
    轻集团签名系统和短信签名计划

    公开(公告)号:KR1020130039174A

    公开(公告)日:2013-04-19

    申请号:KR1020110103670

    申请日:2011-10-11

    CPC classification number: H04L9/3255 H04L2209/805

    Abstract: PURPOSE: A lightweight group signature system with short signatures and a method thereof are provided to improve operation efficiency in signature generation, signature verification, and revocation on smart terminals, while providing security characteristics at a similar level with group signature mechanisms which provide controllable linkability. CONSTITUTION: A key issuing unit(110) initially generates a group public key as a trusted subject and generates a master issuing key(mik), a master opening key(mok), and a master linking key(mlk) corresponding thereto. The key issuing unit performs an interactive protocol, when receiving a join request from a new user device(140), and issues a signature key to the user device. A key revocation identifying unit(120) identifies whether revocation is performed using the updated revocation list and the master opening key when the revocation identification request is received from the signature verifying unit(150) and then, returns the identified results to the signature verifying unit. The key revocation identifying unit uses the master opening key to output the verification information for identifying a signer when a valid signature is given. A signer identification proof evaluating unit(160) evaluates the validity of the signer identification proof generated from a signature control unit(100). [Reference numerals] (100) Control unit; (110) Key issuing unit; (120) Key revocation identifying unit; (130) Signature connecting unit; (140) User device; (150) Signature verifying unit; (160) Signer identification proof evaluating unit; (AA) Generating a group public key; (BB) Master issuing key; (CC) Master identifying key; (DD) Master connecting key; (EE) Confirming signature connection information; (FF) Requesting confirmation of signature connection; (GG) Confirming key revocation; (HH) Requesting confirmation of key revocation; (II) Requesting identification of a signer; (JJ) Issuing a signature key; (KK) Generating a signature; (LL) Generating signer identification proof; (MM) Confirming signer identification proof;

    Abstract translation: 目的:提供一种具有短签名的轻量级签名系统及其方法,以提高智能终端签名生成,签名验证和撤销操作的效率,同时提供与提供可控链路性的组签名机制相似的安全特性。 构成:密钥发布单元(110)最初生成作为可信对象的组公开密钥,并生成与其相对应的主发行密钥(mik),主开放密钥(mok)和主链接密钥(mlk)。 当从新用户设备(140)接收到加入请求时,密钥发布单元执行交互协议,并向用户设备发布签名密钥。 密钥吊销识别单元(120)在从签名验证单元(150)接收到撤销标识请求时,识别是否使用更新的撤销列表和主开放密钥执行撤销,然后将所识别的结果返回到签名验证单元 。 密钥吊销识别单元使用主开放密钥输出用于在给出有效签名时识别签名者的验证信息。 签名者识别确认评估单元(160)评估从签名控制单元(100)生成的签名者识别证明的有效性。 (附图标记)(100)控制单元; (110)发行单位; (120)钥匙撤销识别单元; (130)签名连接单元; (140)用户设备; (150)签名验证单元; (160)签名者识别证明评估单元; (AA)生成组公钥; (BB)主发卡钥匙; (CC)主识别键; (DD)主连接键; (EE)确认签名连接信息; (FF)请求确认签名连接; (GG)确认钥匙吊销; (HH)要求确认关键吊销; (二)要求签字人的身份证明; (JJ)签发签名密钥; (KK)生成签名; (LL)生成签名人身份证明; (MM)确认签署者身份证明;

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