-
公开(公告)号:US07587046B2
公开(公告)日:2009-09-08
申请号:US11081681
申请日:2005-03-17
申请人: Ku Young Chang , Mun Kyu Lee , Hang Rok Lee , Do Won Hong , Ju Sung Kang , Hyun Sook Cho , Kyo Il Chung
发明人: Ku Young Chang , Mun Kyu Lee , Hang Rok Lee , Do Won Hong , Ju Sung Kang , Hyun Sook Cho , Kyo Il Chung
CPC分类号: H04L9/0861 , H04L2209/12
摘要: A method and apparatus for generating a keystream are provided. The method includes: (a) receiving a bitstream comprised of at least 4 bits; (b) selecting at least two bits from the received bitstream; (c) generating an operation value by performing a predetermined bitwise operation on the bits selected in (b); and (d) determining whether to discard the received bitstream or to output the rest of the received bitstream not selected in (b) according to the operation value. The method and apparatus for generating a keystream are expected to be suitable for a ubiquitous computing and network environment and to provide high security or high efficiency.
摘要翻译: 提供了一种用于产生密钥流的方法和装置。 该方法包括:(a)接收由至少4位组成的比特流; (b)从所接收的比特流中选择至少两个比特; (c)通过对(b)中选择的比特执行预定的逐位运算来产生操作值; 以及(d)根据操作值确定丢弃所接收的比特流还是输出未在(b)中选择的接收的比特流的其余部分。 预期用于生成密钥流的方法和装置适用于普遍存在的计算和网络环境并提供高安全性或高效率。
-
2.
公开(公告)号:US07715556B2
公开(公告)日:2010-05-11
申请号:US11449405
申请日:2006-06-08
申请人: Ku Young Chang , Do Won Hong , Hyun Sook Cho , Kyo Il Chung
发明人: Ku Young Chang , Do Won Hong , Hyun Sook Cho , Kyo Il Chung
IPC分类号: G06F21/20
CPC分类号: H04L9/0841
摘要: Provided are a key establishment method and system using commutative linear functions. In the method, a server defines a set of linear functions that use elements of a first finite field as coefficients and satisfy a commutative rule, selects a first linear function from the set, and selects a predetermined element from a second finite field. Next, the server selects a second linear function corresponding to each of nodes from the set, generates a predetermined combination function based on the first and second linear functions, generates a value of the second linear function using the selected element as a factor, and transmits the combination function and the value of the second linear function to a corresponding node. Each node receives the value of the second linear function from a server, exchanges the received values with the other nodes, computes a value using the exchanged value as a factor of the combination function, and establishes the computed value as a shared key between the nodes. Therefore, each node can perform key establishment with a small amount of computation and low memory consumption, while guaranteeing end-to-end security.
摘要翻译: 提供了一种使用交换线性函数的关键建立方法和系统。 在该方法中,服务器定义一组线性函数,其使用第一有限域的元素作为系数并满足可交换规则,从集合中选择第一线性函数,并从第二有限域中选择预定元素。 接下来,服务器从集合中选择对应于每个节点的第二线性函数,基于第一和第二线性函数生成预定的组合函数,使用所选择的元素作为因子生成第二线性函数的值,并且发送 组合函数和第二个线性函数的值对应一个节点。 每个节点从服务器接收第二线性函数的值,与其他节点交换接收的值,使用交换的值作为组合函数的因子计算值,并将计算值建立为节点之间的共享密钥 。 因此,每个节点可以执行少量计算和低内存消耗的密钥建立,同时保证端到端的安全性。
-
公开(公告)号:US07599979B2
公开(公告)日:2009-10-06
申请号:US11046340
申请日:2005-01-28
申请人: Yong Je Choi , Ku Young Chang , Do Won Hong , Hyun Sook Cho
发明人: Yong Je Choi , Ku Young Chang , Do Won Hong , Hyun Sook Cho
IPC分类号: G06F7/72
CPC分类号: G06F7/724
摘要: An apparatus and method for hybrid multiplication in GF(2m) by which trade-off between the area and the operation speed of an apparatus for a hybrid multiplier in finite field GF(2m) can be achieved are provided. The apparatus for hybrid multiplication includes: a matrix Z generation unit generating [m×k] matrix Z for performing a partial multiplication of a(x) and b(x), by dividing b(x) by k bits (k≦┌m/2┐), when multiplication of m-bit multiplier a(x) and m-bit multiplicand b(x) is performed from [(m+k−1)×k] coefficient matrix of a(x) in GF(2m); a partial multiplication unit performing the partial multiplication ┌m/k┐k−1 times in units of rows of the matrix Z to calculate an (┌m/k┐k−1)-th partial multiplication value and a final result value of the multiplication; and a reduction unit receiving the (┌m/k┐k−1)-th partial multiplication value fed back from the partial multiplication unit and performing reduction of the value in order to obtain a partial multiplication value next to the (┌m/k┐k−1)-th partial multiplication value.
摘要翻译: 提供了一种用于在GF(2m)中的混合乘法的装置和方法,通过该方法可以实现有限域GF(2m)中用于混合乘法器的装置的区域和操作速度之间的权衡。 用于混合乘法的装置包括:通过将b(x)除以k位(k <=┌m/ m)来生成用于执行a(x)和b(x)的部分相乘的[mxk]矩阵Z的矩阵Z生成单元 在GF(2m)中的(x)的[(m + k-1)×k]系数矩阵中执行m比特乘法器a(x)和m比特被乘数b(x)的乘法时, 部分乘法单元以矩阵Z的行为单位执行部分乘法┌m/k┐k-1次,以计算(┌m/k┐k-1)个部分乘法值和最终结果值 乘法; 以及缩小单元,接收从部分乘法单元反馈的(┌m/k┐k-1)个部分相乘值,并执行该值的减少,以获得与(┌m/ k ┐k-1)部分乘法值。
-
公开(公告)号:US20120166456A1
公开(公告)日:2012-06-28
申请号:US13338147
申请日:2011-12-27
申请人: Keonwoo KIM , Do Won Hong , Sung Kyong Un , Youngsoo Kim , Sang Su Lee , Woo Yong Choi , Jooyoung Lee , Su Hyung Jo , Youn-Hee Gil , Hyun sook Cho
发明人: Keonwoo KIM , Do Won Hong , Sung Kyong Un , Youngsoo Kim , Sang Su Lee , Woo Yong Choi , Jooyoung Lee , Su Hyung Jo , Youn-Hee Gil , Hyun sook Cho
IPC分类号: G06F17/30
CPC分类号: G06F16/25
摘要: An apparatus for creating a data table of a forensic data, includes a data parser configured to create primary data tables including unique attributes of the predetermined keywords by parsing the raw data having different formats for each forensics tool, each attribute having a unique standardized format. The apparatus further includes a data filter filtering specific fields or attributes from the primary data tables to newly create secondary data table. The apparatus further includes a data relation analyzer analyzing a relation between the data within the primary data tables to newly create secondary data tables.
摘要翻译: 一种用于创建取证数据的数据表的装置,包括:数据解析器,被配置为通过解析每个取证工具具有不同格式的原始数据来创建包括预定关键字的唯一属性的主数据表,每个属性具有唯一的标准化格式。 该装置还包括从主数据表过滤特定字段或属性以新建二次数据表的数据过滤器。 该装置还包括数据关系分析器,分析主数据表内的数据之间的关系,以新创建二次数据表。
-
公开(公告)号:US07975142B2
公开(公告)日:2011-07-05
申请号:US11932916
申请日:2007-10-31
申请人: Ik Re Jeong , Do Won Hong , Hyun Sook Cho
发明人: Ik Re Jeong , Do Won Hong , Hyun Sook Cho
IPC分类号: H04L9/32
CPC分类号: H04L9/3218 , H04L9/3013 , H04L9/3247 , H04L2209/42
摘要: A ring authentication method for a concurrency environment, the method capable of providing unforgeability, sender anonymity, and deniability in the concurrency environment, in which, when a receiver receiving a message requests a sender of the message to certify the message, the sender requested to certify the message sends a message certification value certifying that the sender is one of a plurality of users {P1, . . . , Pn} and authenticates the message m to the receiver, and the receiver verifies the sent message certification value and authenticates that the message is sent from the one of the plurality of users {P1, . . . , Pn}.
摘要翻译: 一种用于并发环境的环形认证方法,该方法能够在并发环境中提供不可伪造性,发送者匿名性和可否认性,其中当接收到消息的接收者请求消息的发送方认证消息时,发送方请求 证明消息发送消息认证值,证明发送方是多个用户之一{P1,...。 。 。 ,Pn}并且向接收者认证消息m,并且接收者验证所发送的消息认证值,并认证该消息是从多个用户{P1,...之一发送的。 。 。 ,Pn}。
-
公开(公告)号:US20110153748A1
公开(公告)日:2011-06-23
申请号:US12971177
申请日:2010-12-17
申请人: Joo Young Lee , Sung Kyong Un , Young Soo Kim , Geon Woo Kim , Sang Su Lee , Su Hyung Jo , Youn Hee Gil , Woo Yong Choi , Do Won Hong , Hyun Sook Cho
发明人: Joo Young Lee , Sung Kyong Un , Young Soo Kim , Geon Woo Kim , Sang Su Lee , Su Hyung Jo , Youn Hee Gil , Woo Yong Choi , Do Won Hong , Hyun Sook Cho
IPC分类号: G06F15/16
CPC分类号: H04L67/125
摘要: A remote forensics system based on a network is provided to allow for accessing a forensics analysis center from a remote area to perform forensic analysis. The network-based remote forensic system includes: one or more remote terminals performing forensic analysis on an evidence device in a remote area, through a virtual forensic tool when the evidence device is connected thereto; and an investigation center system connected to the remote terminals via a wide area network to provide the virtual forensic tool, processing a requirement of the remote terminals, and providing requirement processing results to the remote terminals.
摘要翻译: 提供基于网络的远程取证系统,以便从远程区域访问取证分析中心进行法医分析。 基于网络的远程取证系统包括:一个或多个远程终端,当证据设备连接到其上时,通过虚拟取证工具对远程区域的证据设备执行取证分析; 以及通过广域网连接到远程终端的调查中心系统,以提供虚拟取证工具,处理远程终端的需求,并向远程终端提供需求处理结果。
-
公开(公告)号:US20080133917A1
公开(公告)日:2008-06-05
申请号:US11932916
申请日:2007-10-31
申请人: Ik Rae JEONG , Do Won Hong , Hyun Sook Cho
发明人: Ik Rae JEONG , Do Won Hong , Hyun Sook Cho
IPC分类号: H04L9/32
CPC分类号: H04L9/3218 , H04L9/3013 , H04L9/3247 , H04L2209/42
摘要: A ring authentication method for a concurrency environment, the method capable of providing unforgeability, sender anonymity, and deniability in the concurrency environment, in which, when a receiver receiving a message requests a sender of the message to certify the message, the sender requested to certify the message sends a message certification value certifying that the sender is one of a plurality of users {P1, . . . , Pn} and authenticates the message m to the receiver, and the receiver verifies the sent message certification value and authenticates that the message is sent from the one of the plurality of users {P1, . . . , Pn}.
摘要翻译: 一种用于并发环境的环形认证方法,该方法能够在并发环境中提供不可伪造性,发送者匿名性和可否认性,其中当接收到消息的接收者请求消息的发送方认证消息时,发送方请求 证明消息发送消息认证值,证明发送方是多个用户之一{P <1> SUB>。 。 。 ,并且将消息m认证给接收者,并且接收机验证所发送的消息认证值,并且认证该消息是从多个用户之一发送的(P u> 1) SUB>,。 。 。 ,P&lt; n&gt;}。
-
公开(公告)号:US08799291B2
公开(公告)日:2014-08-05
申请号:US13601925
申请日:2012-08-31
申请人: Joo Young Lee , Youn Hee Gil , Do Won Hong , Keon Woo Kim , Young Soo Kim , Sung Kyong Un , Sang Su Lee , Su Hyung Jo , Woo Yong Choi , Hyun Sook Cho
发明人: Joo Young Lee , Youn Hee Gil , Do Won Hong , Keon Woo Kim , Young Soo Kim , Sung Kyong Un , Sang Su Lee , Su Hyung Jo , Woo Yong Choi , Hyun Sook Cho
IPC分类号: G06F17/30
CPC分类号: G06F17/30312
摘要: Provided is a forensic index method by distributed processing, including: generating data to be divided by dividing data to be indexed according to predetermined division setting for distributed processing; allocating the generated data to be divided to a plurality of data processing units according to the predetermined division setting, extracting an index by filtering the allocated data to be divided in the plurality of data processing units, and generating divided index data including the extracted index; and generating an index database by merging the generated divided index data.
摘要翻译: 提供了一种通过分布式处理的取证索引方法,包括:根据用于分布式处理的预定划分设置,生成要划分的索引数据进行划分的数据; 根据预定的分割设置将生成的要分割的数据分配给多个数据处理单元,通过对分配在多个数据处理单元中的分配数据进行滤波来提取索引,并生成包括提取的索引的分割索引数据; 以及通过合并生成的分割索引数据来生成索引数据库。
-
9.
公开(公告)号:US08639683B2
公开(公告)日:2014-01-28
申请号:US13282078
申请日:2011-10-26
申请人: Youn Hee Gil , Joo Young Lee , Su Hyung Jo , Young Soo Kim , Keon Woo Kim , Sang Su Lee , Woo Yong Choi , Sung Kyong Un , Do Won Hong , Hyun Sook Cho
发明人: Youn Hee Gil , Joo Young Lee , Su Hyung Jo , Young Soo Kim , Keon Woo Kim , Sang Su Lee , Woo Yong Choi , Sung Kyong Un , Do Won Hong , Hyun Sook Cho
CPC分类号: G06F17/30864
摘要: A system and method for data analysis and digital forensics is provided. The system for data analysis and digital forensics may include: an online data forensic server for collecting and analyzing usage history information from an object device, which is subject to data collection, downloading and collecting data on the Internet based on the usage history information, requesting issuance of a timestamp token for the collected data, and receiving the issued timestamp token; a timestamp token issuing server for issuing the timestamp token for the collected data in response to the request for issuance of the timestamp token and proving the issued timestamp token to the online data forensic server; and a storage device for storing the collected data.
摘要翻译: 提供了一种用于数据分析和数字取证的系统和方法。 用于数据分析和数字取证的系统可以包括:在线数据取证服务器,用于从对象设备收集和分析使用历史信息,所述对象设备需要根据使用历史信息进行数据收集,下载和收集数据,请求 发出用于收集的数据的时间戳令牌,以及接收所发出的时间戳令牌; 时间戳令牌发行服务器,用于响应于发出时间标记令牌的请求发布收集的数据的时间戳令牌,并向在线数据取证服务器证明发出的时间戳令牌; 以及用于存储所收集的数据的存储装置。
-
公开(公告)号:US20130117273A1
公开(公告)日:2013-05-09
申请号:US13601925
申请日:2012-08-31
申请人: Joo Young LEE , Youn Hee Gil , Do Won Hong , Keon Woo Kim , Young Soo Kim , Sung Kyong Un , Sang Su Lee , Su Hyung Jo , Woo Yong Choi , Hyun Sook Cho
发明人: Joo Young LEE , Youn Hee Gil , Do Won Hong , Keon Woo Kim , Young Soo Kim , Sung Kyong Un , Sang Su Lee , Su Hyung Jo , Woo Yong Choi , Hyun Sook Cho
IPC分类号: G06F17/30
CPC分类号: G06F17/30312
摘要: Provided is a forensic index method by distributed processing, including: generating data to be divided by dividing data to be indexed according to predetermined division setting for distributed processing; allocating the generated data to be divided to a plurality of data processing units according to the predetermined division setting, extracting an index by filtering the allocated data to be divided in the plurality of data processing units, and generating divided index data including the extracted index; and generating an index database by merging the generated divided index data.
摘要翻译: 提供了一种通过分布式处理的取证索引方法,包括:根据用于分布式处理的预定划分设置,生成要划分的索引数据进行划分的数据; 根据预定的分割设置将生成的要分割的数据分配给多个数据处理单元,通过对分配在多个数据处理单元中的分配数据进行滤波来提取索引,并生成包括提取的索引的分割索引数据; 以及通过合并生成的分割索引数据来生成索引数据库。
-
-
-
-
-
-
-
-
-