COMBINATION-BASED BROADCAST ENCRYPTION METHOD
    1.
    发明申请
    COMBINATION-BASED BROADCAST ENCRYPTION METHOD 有权
    基于组合的广播加密方法

    公开(公告)号:US20120213364A1

    公开(公告)日:2012-08-23

    申请号:US13460098

    申请日:2012-04-30

    IPC分类号: H04K1/00

    摘要: A combination-based broadcast encryption method includes: assigning by a server a base group of different combinations to each user; producing and sending secret information for each user by using as a base the base group allocated to each user; producing and sending an inverse-base parameter value through calculations with integers used to produce the base group and key value information of one or more privileged users; and deriving a group key by using the key value information of the privileged users, encrypting a session key by using the derived group key, and sending the encrypted session key to each user. Accordingly, each user is assigned a different base through a combination, thereby having security against collusion attacks.

    摘要翻译: 基于组合的广播加密方法包括:由服务器分配不同组合的基组给每个用户; 通过使用分配给每个用户的基本组作为基础来生成和发送每个用户的秘密信息; 通过用于产生基本组的整数和一个或多个特权用户的键值信息的计算产生和发送反基本参数值; 以及通过使用所述特权用户的密钥值信息来导出组密钥,通过使用导出的组密钥加密会话密钥,以及将加密的会话密钥发送给每个用户。 因此,通过组合为每个用户分配不同的基站,从而具有防止串通攻击的安全性。

    APPARATUS AND METHOD FOR GENERATING A KEY FOR BROADCAST ENCRYPTION
    2.
    发明申请
    APPARATUS AND METHOD FOR GENERATING A KEY FOR BROADCAST ENCRYPTION 有权
    用于生成用于广播加密的密钥的装置和方法

    公开(公告)号:US20120183136A1

    公开(公告)日:2012-07-19

    申请号:US13426830

    申请日:2012-03-22

    IPC分类号: H04L9/00

    摘要: An apparatus and method for generating a key for a broadcast encryption. The apparatus includes a node secret generator for managing a user that receives broadcast data in a tree structure and for generating a unique node secret for each node in the tree structure. The apparatus also includes an instant key generator for temporarily generating an instant key used at all nodes in common in the tree structure, and a node key generator for generating a node key for each node by operating the node secret generated at the node secret generator and the instant key generated at the instant key generator. Thus, key update can be efficiently achieved.

    摘要翻译: 一种用于生成用于广播加密的密钥的装置和方法。 该装置包括节点秘密生成器,用于管理以树结构接收广播数据的用户,并为树结构中的每个节点生成唯一的节点秘密。 该装置还包括一个即时密钥生成器,用于临时生成树结构中所有节点共同使用的即时密钥,以及节点密钥生成器,用于通过操作在节点秘密生成器处生成的节点秘密来生成每个节点的节点密钥, 在即时密钥生成器处生成的即时密钥。 因此,可以有效地实现密钥更新。

    Hierarchical threshold tree-based broadcast encryption method
    3.
    发明授权
    Hierarchical threshold tree-based broadcast encryption method 有权
    基于层次阈值树的广播加密方法

    公开(公告)号:US08005225B2

    公开(公告)日:2011-08-23

    申请号:US11340614

    申请日:2006-01-27

    IPC分类号: H04L29/00

    摘要: A hierarchical threshold tree-based broadcast encryption method includes a first step for a server initialization and a user subscription, a second step of distributing a message to enable a privileged user (authorized user) to decrypt a group key, and a third step of the privileged user (authorized user) decrypting the message using the group key. According to the method, it is possible to prevent any group of revocators from obtaining the group key using their secret information and information being broadcast by the server.

    摘要翻译: 基于分层阈值树的广播加密方法包括用于服务器初始化和用户订阅的第一步骤,分发消息以使得特权用户(授权用户)能够解密组密钥的第二步骤,以及第三步骤 特权用户(授权用户)使用组密钥解密消息。 根据该方法,可以防止任何一组撤销者使用其秘密信息和由服务器广播的信息来获得组密钥。

    Computer System and Method for Preventing Dynamic-Link Library Injection Attack
    4.
    发明申请
    Computer System and Method for Preventing Dynamic-Link Library Injection Attack 有权
    防止动态链接库注入攻击的计算机系统和方法

    公开(公告)号:US20110179430A1

    公开(公告)日:2011-07-21

    申请号:US12885695

    申请日:2010-09-20

    IPC分类号: G06F9/44

    CPC分类号: G06F21/554 G06F9/44521

    摘要: A computer system and method for preventing a Dynamic-Link Library (DLL) injection attack are provided. The computer system monitors an operation where a process attempts to dynamically link an executable code library to another process, and intercepts the dynamic link of the executable code library.

    摘要翻译: 提供了一种用于防止动态链接库(DLL)注入攻击的计算机系统和方法。 计算机系统监视进程尝试动态地将可执行代码库链接到另一进程的操作,并拦截可执行代码库的动态链接。

    Radio frequency identification (RFID) tag encryption method and system using broadcast encryption (BE) scheme
    5.
    发明授权
    Radio frequency identification (RFID) tag encryption method and system using broadcast encryption (BE) scheme 有权
    射频识别(RFID)标签加密方法和使用广播加密(BE)方案的系统

    公开(公告)号:US07760096B2

    公开(公告)日:2010-07-20

    申请号:US12498390

    申请日:2009-07-07

    IPC分类号: G08B13/14 H04M1/66

    摘要: A radio frequency identification (RFID) tag encryption method and system using a broadcast encryption (BE) scheme are provided by encrypting an ID of an RFID tag, storing the encrypted ID in a server and the RFID tag, and storing information relating to a reader authorized to read out the RFID tag in the server so that the reader can read out the RFID tag by decrypting the encrypted ID based on the encrypted ID information read from the RFID tag and the reader information. When readers read out ID data from the RFID tag, a privileged reader can read the data. Thus, it is possible to block unintended information leakage to the readers. In addition, user usability can be enhanced since an attacker cannot perform an access lock on the RFID tag.

    摘要翻译: 使用广播加密(BE)方式的射频识别(RFID)标签加密方法和系统通过加密RFID标签的ID,将加密的ID存储在服务器和RFID标签中,并且存储与读取器有关的信息 被授权在服务器中读出RFID标签,以便读取器可以基于从RFID标签读取的加密的ID信息和读取器信息解密加密的ID来读出RFID标签。 当读者从RFID标签读出ID数据时,特权读取器可以读取数据。 因此,有可能将意外的信息泄露给读者。 此外,由于攻击者无法对RFID标签执行访问锁定,因此可以增强用户可用性。

    PERSONAL INFORMATION PROVIDING APPARATUS AND METHOD
    6.
    发明申请
    PERSONAL INFORMATION PROVIDING APPARATUS AND METHOD 审中-公开
    提供装置和方法的个人信息

    公开(公告)号:US20100169980A1

    公开(公告)日:2010-07-01

    申请号:US12545816

    申请日:2009-08-22

    IPC分类号: G06F21/24

    CPC分类号: G06F21/6245 G06T1/0021

    摘要: A personal information providing method and apparatus is provided. The personal information providing apparatus may extract personal information about at least one characteristic corresponding to a predetermined standard from a database storing personal information of a plurality of characteristics, embed the personal information about the at least one characteristic in a predetermined image, generate a personal information image, generate a watermark having trace information embedded, and embed the watermark in the personal information image.

    摘要翻译: 提供个人信息提供方法和装置。 个人信息提供装置可以从存储多个特征的个人信息的数据库中提取关于与预定标准相对应的至少一个特征的个人信息,将关于至少一个特征的个人信息嵌入到预定图像中,生成个人信息 生成具有嵌入跟踪信息的水印,并将该水印嵌入在个人信息图像中。

    RADIO FREQUENCY IDENTIFICATION (RFID) TAG ENCRYPTION METHOD AND SYSTEM USING BROADCAST ENCRYPTION (BE) SCHEME
    7.
    发明申请
    RADIO FREQUENCY IDENTIFICATION (RFID) TAG ENCRYPTION METHOD AND SYSTEM USING BROADCAST ENCRYPTION (BE) SCHEME 有权
    无线电频率识别(RFID)TAG加密方法和使用广播加密(BE)方案的系统

    公开(公告)号:US20090278664A1

    公开(公告)日:2009-11-12

    申请号:US12498390

    申请日:2009-07-07

    IPC分类号: H04Q5/22

    摘要: A radio frequency identification (RFID) tag encryption method and system using a broadcast encryption (BE) scheme are provided by encrypting an ID of an RFID tag, storing the encrypted ID in a server and the RFID tag, and storing information relating to a reader authorized to read out the RFID tag in the server so that the reader can read out the RFID tag by decrypting the encrypted ID based on the encrypted ID information read from the RFID tag and the reader information. When readers read out ID data from the RFID tag, a privileged reader can read the data. Thus, it is possible to block unintended information leakage to the readers. In addition, user usability can be enhanced since an attacker cannot perform an access lock on the RFID tag.

    摘要翻译: 使用广播加密(BE)方式的射频识别(RFID)标签加密方法和系统通过加密RFID标签的ID,将加密的ID存储在服务器和RFID标签中,并且存储与读取器有关的信息 被授权在服务器中读出RFID标签,以便读取器可以基于从RFID标签读取的加密的ID信息和读取器信息解密加密的ID来读出RFID标签。 当读者从RFID标签读出ID数据时,特权读取器可以读取数据。 因此,有可能将意外的信息泄露给读者。 此外,由于攻击者无法对RFID标签执行访问锁定,因此可以增强用户可用性。

    USER TERMINAL WITH SECURITY FUNCTION AND SECURITY-CONTROL METHOD
    8.
    发明申请
    USER TERMINAL WITH SECURITY FUNCTION AND SECURITY-CONTROL METHOD 有权
    具有安全功能和安全控制方法的用户终端

    公开(公告)号:US20090183231A1

    公开(公告)日:2009-07-16

    申请号:US12118282

    申请日:2008-05-09

    申请人: Weon-il JIN

    发明人: Weon-il JIN

    IPC分类号: H04L9/32

    CPC分类号: G06F21/32

    摘要: A user terminal apparatus with a security function and a security-control method are provided, which may prevent unauthorized use of the user terminal apparatus without requiring a user to lock up the user terminal apparatus. The user terminal apparatus includes an input sensing unit which senses a user's input to the user terminal apparatus, an information collecting unit which collects information regarding an input state, which is determined based on the user's input, and a transition of the determined state, and a security-control unit which determines whether the user is valid based on the collected information and controls a security function.

    摘要翻译: 提供具有安全功能和安全控制方法的用户终端装置,其可以防止用户终端装置的未经授权的使用而不需要用户锁定用户终端装置。 用户终端装置包括感测用户对用户终端装置的输入的输入感测单元,收集关于基于用户输入确定的输入状态的信息的信息收集单元以及所确定的状态的转换,以及 安全控制单元,其基于所收集的信息来确定用户是否有效,并且控制安全功能。

    RFID tag, system for purchasing service by using RFID tag, and method thereof
    9.
    发明授权
    RFID tag, system for purchasing service by using RFID tag, and method thereof 有权
    RFID标签,使用RFID标签购买服务的系统及其方法

    公开(公告)号:US07486171B2

    公开(公告)日:2009-02-03

    申请号:US11353969

    申请日:2006-02-15

    IPC分类号: H04Q5/22

    摘要: An RFID tag used to purchase service related to the RFID tag containing purchase information, a service purchase system using the RFID tag, and a service purchase method thereof. The RFID tag provides content information, right information, and purchase information. Therefore, when purchasing service products such as contents, user convenience can be increased and reliability can be guaranteed.

    摘要翻译: 用于购买与包含购买信息的RFID标签相关的服务的RFID标签,使用RFID标签的服务购买系统及其服务购买方法。 RFID标签提供内容信息,正确信息和购买信息。 因此,在购买内容等服务产品时,可以提高用户的便利性,保证可靠性。

    Security system using RSA algorithm and method thereof
    10.
    发明授权
    Security system using RSA algorithm and method thereof 有权
    使用RSA算法的安全系统及其方法

    公开(公告)号:US07421074B2

    公开(公告)日:2008-09-02

    申请号:US10959993

    申请日:2004-10-08

    IPC分类号: H04L9/30

    摘要: A security system using an RSA algorithm that includes a key input section for receiving a secret key and a public key used in one of encryption and decryption of a message, a random coefficient generating section for generating a random coefficient r having a bit of a predetermined size, a first calculation section for dividing the secret key into a first secret key and a second secret key by using the value of r, and performing an exponentiation of RSA algorithm by using the respective secret keys and the public key, and a second calculation section for performing one of the encryption and the decryption by combining results of exponentiation calculated respectively by using the first and the second secret keys.

    摘要翻译: 一种使用RSA算法的安全系统,包括用于接收秘密密钥的密钥输入部分和用于消息的加密和解密之一的公开密钥;随机系数产生部分,用于生成具有预定 大小,第一计算部分,用于通过使用r的值将秘密密钥分解成第一秘密密钥和第二秘密密钥,并且通过使用相应的密钥和公钥来执行RSA算法的乘幂,以及第二计算 部分,用于通过组合通过使用第一和第二秘密密钥分别计算的求幂的结果来执行加密和解密之一。