Key establishment method and system using commutative linear function
    11.
    发明授权
    Key establishment method and system using commutative linear function 有权
    关键建立方法和系统使用交换线性函数

    公开(公告)号:US07715556B2

    公开(公告)日:2010-05-11

    申请号:US11449405

    申请日:2006-06-08

    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。

    Apparatus and method for privacy protection in association rule mining
    13.
    发明授权
    Apparatus and method for privacy protection in association rule mining 失效
    关联规则挖掘中隐私保护的装置和方法

    公开(公告)号:US08745696B2

    公开(公告)日:2014-06-03

    申请号:US12968420

    申请日:2010-12-15

    IPC分类号: H04L29/06

    CPC分类号: G06F21/6245

    摘要: There are provided an apparatus and a method for privacy protection in association rule mining among data mining technologies. An apparatus for privacy protection in association rule mining according to an embodiment of the present invention comprises: a fake transaction inserter that generates fake transactions of a predetermined number each having a predetermined length and inserts the fake transactions between a plurality of transactions comprised in an original data set to generate a first virtual data set; and a distortion transaction generator that generates a second virtual data set by converting data of the transaction of the first virtual data set with a predetermined probability.

    摘要翻译: 提供了数据挖掘技术中的关联规则挖掘中的隐私保护的装置和方法。 根据本发明的实施例的关联规则挖掘中的隐私保护装置包括:假交易插入器,其生成每个具有预定长度的预定数量的假交易,并将假交易插入到包含在原始数据中的多个交易之间 数据集,以生成第一虚拟数据集; 以及失真事务生成器,其通过以预定概率转换第一虚拟数据集的事务的数据来生成第二虚拟数据集。

    Method of user-authenticated quantum key distribution
    14.
    发明授权
    Method of user-authenticated quantum key distribution 失效
    用户认证的量子密钥分发方法

    公开(公告)号:US08639927B2

    公开(公告)日:2014-01-28

    申请号:US12953198

    申请日:2010-11-23

    IPC分类号: H04L9/32

    CPC分类号: H04L9/0852

    摘要: A method of user-authenticated quantum key distribution according to the present invention shares a position having the same basis without making public basis information using previously shared secret keys and authenticates a quantum channel by confirming whether there is the same measured outcome at that position, in order to secure unconditional security of BB84 quantum key distribution (QKD) protocols vulnerable to man-in-the-middle attack.

    摘要翻译: 根据本发明的用户认证量子密钥分发的方法共享具有相同基础的位置,而不使用先前共享的秘密密钥来进行公共基础信息,并通过确认在该位置是否存在相同的测量结果来认证量子信道, 以确保BB84量子密钥分发(QKD)协议的无条件安全性易受中间人攻击。

    Method for data analysis and digital forensics and system using the same
    15.
    发明授权
    Method for data analysis and digital forensics and system using the same 有权
    数据分析和数字取证方法及使用方法

    公开(公告)号:US08639683B2

    公开(公告)日:2014-01-28

    申请号:US13282078

    申请日:2011-10-26

    IPC分类号: G06F7/00 G06F17/30

    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。

    METHOD AND APPARATUS FOR ENHANCING PRIVACY OF CONTACT INFORMATION IN PROFILE
    16.
    发明申请
    METHOD AND APPARATUS FOR ENHANCING PRIVACY OF CONTACT INFORMATION IN PROFILE 审中-公开
    用于增强个人资料中隐私信息隐私的方法和装置

    公开(公告)号:US20130055393A1

    公开(公告)日:2013-02-28

    申请号:US13593876

    申请日:2012-08-24

    IPC分类号: G06F21/00

    CPC分类号: G06F21/6245

    摘要: A mobility technology for strengthening safety for an invasion of privacy caused by leakage of contact information is provided. A privacy protection system may include an acquisition attempt detecting unit to detect an external communication terminal that attempts to acquire contact information included in the profile, and an access controller to provide the detected external communication terminal with a right to use the contact information, and to determine whether the contact information is to be provided.

    摘要翻译: 提供了一种移动技术,用于加强因泄露联系信息而侵犯隐私的安全性。 隐私保护系统可以包括:获取尝试检测单元,用于检测尝试获取包含在简档中的联系人信息的外部通信终端;以及访问控制器,用于向检测到的外部通信终端提供使用该联系人信息的权利,以及 确定是否提供联系信息。

    Methods of storing and retrieving data in/from external server
    17.
    发明授权
    Methods of storing and retrieving data in/from external server 失效
    在外部服务器中存储和检索数据的方法

    公开(公告)号:US08225107B2

    公开(公告)日:2012-07-17

    申请号:US12580603

    申请日:2009-10-16

    IPC分类号: H04L9/00

    CPC分类号: G06F21/6227 H04L9/00

    摘要: Provided are methods of storing and searching for data in encrypted form. The method of storing data in encrypted form includes: encrypting desired data from among data stored in a database; dividing an entire region of the stored data into a plurality of bucket regions and allocating an index to each of the bucket regions; identifying order information in a bucket region to which the encrypted data belongs; and storing the encrypted data, index information of the bucket region to which the encrypted data belongs, and the identified order information in an external server. When a database containing important data of at least one user is stored in an external server using the above storing method, the security and efficiency of the database can be increased.

    摘要翻译: 提供了以加密形式存储和搜索数据的方法。 以加密形式存储数据的方法包括:从存储在数据库中的数据中加密所需数据; 将所存储的数据的整个区域划分成多个桶区域,并且向每个桶区域分配索引; 识别加密数据所属的存储区域中的订单信息; 并且将加密数据,加密数据所属的桶区域的索引信息和所识别的订购信息存储在外部服务器中。 当使用上述存储方法将包含至少一个用户的重要数据的数据库存储在外部服务器中时,可以增加数据库的安全性和效率。

    ORDER-PRESERVING ENCRYPTION AND DECRYPTION APPARATUS AND METHOD THEREOF
    18.
    发明申请
    ORDER-PRESERVING ENCRYPTION AND DECRYPTION APPARATUS AND METHOD THEREOF 有权
    订购保存加密和解码装置及其方法

    公开(公告)号:US20120163586A1

    公开(公告)日:2012-06-28

    申请号:US13333974

    申请日:2011-12-21

    IPC分类号: H04L9/28

    CPC分类号: H04L9/002 H04L9/0662

    摘要: An order-preserving encryption apparatus includes an initializer for setting a total space of a ciphertext with respect to a total space of a plaintext by considering security of the ciphertext, and setting a secret key for encryption and a pseudo-random number generator for generation of a pivot. Further, the order-preserving encryption apparatus includes a pivot generator for applying the secret key to the established pseudo-random number generator to generate a pivot for the plaintext to be encrypted. Further, the order-preserving encryption apparatus includes a ciphertext generator for generating information about size of a bit constituting the ciphertext by comparing the generated pivot and the plaintext; and a plaintext adjusting unit for adjusting a magnitude of the total plaintext space and a magnitude of the plaintext according to the ciphertext.

    摘要翻译: 订单保存加密装置包括:初始化器,用于通过考虑密文的安全性来设置相对于明文的总空间的密文的总空间,以及设置用于加密的秘密密钥和用于生成密文的伪随机数发生器 一个枢纽 此外,订单保存加密装置包括用于将密钥应用于所建立的伪随机数发生器以产生待加密明文的枢轴的枢轴发生器。 此外,订单保存加密装置包括密文生成器,用于通过比较生成的枢轴和明文来产生关于构成密文的比特的大小的信息; 以及明文调整单元,用于根据密文调整总明文空间的大小和明文的大小。

    DIGITAL FORENSIC APPARATUS FOR ANALYZING USER ACTIVITIES AND METHOD THEREOF
    19.
    发明申请
    DIGITAL FORENSIC APPARATUS FOR ANALYZING USER ACTIVITIES AND METHOD THEREOF 审中-公开
    用于分析用户活动的数字威尔士设备及其方法

    公开(公告)号:US20120150915A1

    公开(公告)日:2012-06-14

    申请号:US13324683

    申请日:2011-12-13

    IPC分类号: G06F7/00

    CPC分类号: G06Q30/02

    摘要: A digital forensic apparatus for analyzing user activities includes: a collection unit for collecting analysis information related to user activities from a device as an investigation target for analyzing the user activities; and an analysis unit for analyzing the analysis information collected by the collection unit to determine activity information of a user from each type of the analysis information, and for causing the activity information to be arranged and displayed in temporal order.

    摘要翻译: 用于分析用户活动的数字取证装置包括:收集单元,用于从用于从用户分析用户活动的调查对象收集与用户活动有关的分析信息; 以及分析单元,用于分析由所述收集单元收集的分析信息,以根据每种类型的分析信息确定用户的活动信息,并且用于使活动信息按时间顺序排列和显示。

    METHOD FOR DATA ANALYSIS AND DIGITAL FORENSICS AND SYSTEM USING THE SAME
    20.
    发明申请
    METHOD FOR DATA ANALYSIS AND DIGITAL FORENSICS AND SYSTEM USING THE SAME 有权
    数据分析方法和使用该数据的数字证明和系统

    公开(公告)号:US20120109969A1

    公开(公告)日:2012-05-03

    申请号:US13282078

    申请日:2011-10-26

    IPC分类号: G06F15/16 G06F17/30

    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。