公开(公告)号：KR1020130053839A

公开(公告)日：2013-05-24

申请号：KR1020110119516

申请日：2011-11-16

Applicant: 고려대학교 산학협력단

Inventor： 장구영 ,  조남수 ,  노건태 ,  정익래

IPC: H04N7/167

CPC classification number: H04N7/167 ,  H04N7/161 ,  H04N19/134

Abstract: PURPOSE: A broadcast method based on a lattice is provided to generate and set a public key and a secret key of each participant based on the lattice, thereby coding a plain text based on the public key and decoding the coded plain text by using the secret key. CONSTITUTION: Each participant group generates and sets a public key and a secret key through an algorithm(S210). When one or more participants request data transmission to a temporary participant by using the public key, the temporary participant transmits data by using a transmission device(S212,S214). The transmission device generates a coding text for the data by using the public key and transmits the coding text with a broadcast method. The participant group decodes the coding text by using the secret key(S218). [Reference numerals] (AA) Start; (BB) End; (S210) Set a public key and a secret key through a trap door sampling algorithm; (S212) Receive plain text transmission request; (S214) Encode a plain text using the public key and transmit the same in a broadcast method; (S216) Receive a random coded message; (S218) Generate a plain text through decoding using the secret key; (S220) Plain text satisfies first and second conditions?; (S222) Output the plain text; (S224) Output ㅗ

Abstract translation: 目的：提供一种基于格点的广播方法，以基于格点生成和设置每个参与者的公开密钥和秘密密钥，从而基于公开密钥对纯文本进行编码，并通过使用秘密解码编码的纯文本 键。 构成：每个参与者组通过算法生成和设置公钥和秘密密钥（S210）。 当一个或多个参与者通过使用公共密钥向临时参与者请求数据传输时，临时参与者通过使用发送设备发送数据（S212，S214）。 发送装置利用公开密钥生成数据的编码文本，并以广播方式发送编码文本。 参与者组通过使用秘密密钥解码编码文本（S218）。 （附图标记）（AA）开始; （BB）结束; （S210）通过陷阱门采样算法设置公钥和秘密密钥; （S212）接收纯文本传输请求; （S214）使用公共密钥对纯文本进行编码，并以广播方式发送; （S216）接收随机编码消息; （S218）使用秘密密钥通过解码生成纯文本; （S220）纯文本满足第一和第二条件？ （S222）输出纯文本; （S224）输出ㅗ

公开(公告)号：KR1020120065818A

公开(公告)日：2012-06-21

申请号：KR1020100127131

申请日：2010-12-13

Applicant: 한국전자통신연구원 ,  고려대학교 산학협력단

Inventor： 조남수 ,  홍도원 ,  정익래 ,  김기성

IPC: H04L9/32 ,  G06F21/31

Abstract: PURPOSE: An ID(identity)-based proxy signature from lattices is provided to increase security for a quantum algorithm and calculation efficiency by performing proxy signature through its own secret key. CONSTITUTION: A KGC(Key Generation Center)(100) generates a signature key used for ID(identity)-based proxy signature. The KGC provides a signature key of a signer to the signer(102). The KGC provides the signature key, in other word, a secret key corresponding to each ID of an individual, to each individual including a proxy signer(104). The signer generates a proxy statement(108) by using its own signature key. The proxy statement of the signer is transmitted to the proxy signer through a communication network. The proxy signer generates a proxy signature(110) by using the proxy statement and the signature key of the proxy signer.

Abstract translation: 目的：提供来自格子的基于身份（身份）的代理签名，以通过其自己的秘密密钥执行代理签名来提高量子算法的安全性和计算效率。 规定：KGC（密钥生成中心）（100）生成用于基于ID（身份）的代理签名的签名密钥。 KGC向签名者（102）提供签名者的签名密钥。 KGC向包括代理签名者（104）的每个人提供签名密钥，换句话说，提供对应于个人的每个ID的密钥。 签名者通过使用自己的签名密钥生成代理语句（108）。 签署人的代理声明通过通信网络传送给代理签名者。 代理签名者通过使用代理签名者的代理语句和签名密钥生成代理签名（110）。

公开(公告)号：KR1020140077701A

公开(公告)日：2014-06-24

申请号：KR1020120146779

申请日：2012-12-14

Applicant: 한국전자통신연구원 ,  고려대학교 산학협력단

Inventor： 조남수 ,  홍석희 ,  권태웅

IPC: G06F17/10 ,  G06F7/44

CPC classification number: G06F7/723 ,  G06F7/724

Abstract: The present invention relates to a high-speed cube computation module. The high-speed cube computation module according to an embodiment of the present invention conducts cube computation which is the basis of the pairing encryption computation to accelerate the speed of the pairing encryption algorithm computation in a limited implementation environment such as a ubiquitous computing environment. When the cube computation module is implemented in a hardware or software environment, the cube computation module can shorten the time required for the cube computation as low as 1/7.

Abstract translation: 本发明涉及一种高速立方体计算模块。 根据本发明的实施例的高速立方体计算模块进行立方体计算，其是配对加密计算的基础，以在诸如无处不在的计算环境的有限实施环境中加速配对加密算法计算的速度。 当立方体计算模块在硬件或软件环境中实现时，立方体计算模块可以将多维数据集计算所需的时间缩短到1/7。

公开(公告)号：KR1020140076009A

公开(公告)日：2014-06-20

申请号：KR1020120144050

申请日：2012-12-12

Applicant: 한국전자통신연구원 ,  고려대학교 산학협력단

Inventor： 조남수 ,  노건태 ,  정익래

IPC: H04L9/30

Abstract: An ID-based ring signature apparatus with high a counterfeit-proof function according to an embodiment of the present invention includes: a parameter generator to generate a security parameter, a master secret key of a server using lattice configuration information, and a public parameter of the signature apparatus; a secret key generator to generate a participant secret key using the generated master secret key and public parameter, and public Identifications (IDs) of participants participating in ring signature; a signature generator to generate a signature using a secret key of a signer among the participants, an ID group (ring) and a participant message optionally configured by the signer; and a signature verification unit to verify whether the generated signature is a reasonable signature with respect to the participant ID group and the participant message to output a true or false result, and the ID-based ring signature apparatus satisfies high counterfeit-proof performance.

Abstract translation: 根据本发明实施例的具有高防伪功能的基于ID的环形签名装置包括：生成安全参数的参数生成器，使用格子配置信息的服务器的主密钥，以及公共参数 签名装置; 使用所生成的主秘密密钥和公共参数来生成参与者秘密密钥的秘密密钥生成器和参与环签名的参与者的公共识别（ID）; 签名生成器，用于使用所述参与者中的签名者的秘密密钥生成签名，ID组（环）和由所述签名者可选地配置的参与者消息; 以及签名验证单元，用于验证所生成的签名是否是关于参与者ID组和参与者消息的合理签名，以输出真实或错误的结果，并且基于ID的环形签名设备满足高防伪性能。