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公开(公告)号：KR1020130031660A
公开(公告)日：2013-03-29
申请号：KR1020110095367
申请日：2011-09-21
Applicant: 삼성전자주식회사
CPC classification number: H04L67/06 , H04L63/065 , H04L63/104 , H04L63/123 , H04L67/1097 , H04L67/327
Abstract: PURPOSE: A content name based network device and a content name generating method, and an authentication method are provided to share content between the network devices by generating a content name based on a domain key. CONSTITUTION: An authentication information generation unit(401) generates authentication information by using a secret key shared between the network devices which belong to a domain in a CCN(Contents Centric Networking). A content name generating unit(402) generates a content name including the authentication information. The authentication information generation unit generates the authentication information by using domain information, content name information, a secret key which is changed according to the version of the content name. A message reception unit(403) receives a request message of the content name. An information transmission unit transmits list information for the content name including the authentication information by responding to the request message of the content name. [Reference numerals] (401) Authentication information generation unit; (402) Content name generating unit; (403) Message reception unit; (404) Information transmission unit; (405) Update unit
Abstract translation: 目的：提供基于内容名称的网络设备和内容名称生成方法以及认证方法，通过基于域密钥生成内容名称来共享网络设备之间的内容。 构成：认证信息生成单元（401）通过使用属于CCN（内容中心网络）中的域的网络设备之间共享的秘密密钥来生成认证信息。 内容名称生成部（402）生成包含认证信息的内容名称。 认证信息生成单元通过使用域信息，内容名称信息，根据内容名称的版本而变更的密钥生成认证信息。 消息接收单元（403）接收内容名称的请求消息。 信息发送单元通过响应内容名称的请求消息来发送包括认证信息的内容名称的列表信息。 （附图标记）（401）认证信息生成单元; （402）内容名称生成单元; （403）消息接收单元; （404）信息传输单元; （405）更新单元
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公开(公告)号：KR101242494B1
公开(公告)日：2013-03-12
申请号：KR1020060069295
申请日：2006-07-24
Applicant: 삼성전자주식회사
IPC: H04N5/913
CPC classification number: G06T1/0057 , G06T2201/0052 , G06T2201/0083 , G06T2201/0202
Abstract: 비디오 핑거프린팅 장치 및 방법이 개시된다. 본 발명의 비디오 핑거프린트 삽입 장치는 비디오 영상의 주파수 영역들 중 핑거프린트가 삽입될 주파수 영역을 선택하는 주파수 영역 선택부, 상기 선택된 주파수 영역에서 상기 핑거프린트 삽입 판정값을 기초로 하여 상기 핑거프린트가 삽입될 위치를 판단하는 핑거프린트 삽입 위치 판단부 및 상기 핑거프린트가 삽입될 위치에 삽입 강도가 조절된 상기 핑거프린트 비트열을 삽입하는 핑거프린트 삽입부를 포함하는 것을 특징으로 한다. 따라서, 본 발명의 주파수 영역에서의 비디오 핑거프린팅 장치 및 방법은, 비디오 영상을 주파수 영역으로 변환한 후 선택된 주파수 영역에 핑거프린트를 삽입하기 때문에 재압축, 필터링 및 비디오 포맷 변경과 같은 핑거프린팅 공격에 강건하다.
핑거프린팅, 삽입, 검출, 셋탑박스, DWT-
公开(公告)号：KR101210339B1
公开(公告)日：2012-12-18
申请号：KR1020060098374
申请日：2006-10-10
Applicant: 삼성전자주식회사
CPC classification number: G06F17/30961
Abstract: 트리구조에서위치정보와패딩정보를포함하는노드식별자를생성하는방법, 그방법을컴퓨터에서실행시키기위한프로그램을기록한컴퓨터로읽을수 있는기록매체, 그리고상기 k-nary트리구조를이용하는단말장치가개시된다. 상기노드식별자는루트노드로부터목표노드까지의각 분기마다할당된분기식별자을이용하여생성되는위치정보와상기목표노드가속한그룹정보를포함하는패딩코드(padding code) 및상기트리구조에서상기목표노드가속한레벨정보를포함하는뎁스정보를이용하여생성되는패딩정보를포함한다.
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公开(公告)号：KR101213154B1
公开(公告)日：2012-12-17
申请号：KR1020060113398
申请日：2006-11-16
Applicant: 삼성전자주식회사
CPC classification number: H04L9/0891 , H04L9/0836 , H04L63/062 , H04L63/065 , H04L63/104 , H04W12/04
Abstract: 키업데이트방법및 장치가개시된다. 본발명의오프라인상태에서온라인상태로전환한멤버에대한키 업데이트방법은, 그룹에대한노드키 업데이트에응답하여, 업데이트된노드키를암호화한데이터를업데이트서버의데이터베이스에저장하는단계; 상기업데이트된노드키를암호화한데이터중에서상기멤버가상기온라인상태로전환하기직전의키를산출하는데필요한데이터들을선택하여멤버업데이트데이터를생성하는단계; 및상기오프라인상태에서온라인상태로전환한멤버에상응하는디바이스에서상기멤버업데이트데이터를이용하여상기멤버에대한키 업데이트를수행하도록하는단계를포함하는것을특징으로한다.
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公开(公告)号：KR1020090053136A
公开(公告)日：2009-05-27
申请号：KR1020070119811
申请日：2007-11-22
Applicant: 삼성전자주식회사
Inventor： 허미숙
IPC: H04N21/4408
CPC classification number: H04L9/0822 , H04L2209/60
Abstract: The present invention relates to a system and method for restricting recording of contents using a device key of a content reproduction device. A content recording device includes a content recording unit for encrypting contents using a Content Encryption Key (CEK) and recording the encrypted contents in a recording medium; a CEK transmitting/receiving unit for transmitting the CEK to at least one content reproduction device, and receiving, from the at least one content reproduction device, an encrypted CEK being encrypted using a device key of each of the at least one content reproduction device; and a CEK recording unit for recording the encrypted CEK in the recording medium.
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Patent Agency Ranking
公开(公告)号：KR1020080044483A
公开(公告)日：2008-05-21
申请号：KR1020060113398
申请日：2006-11-16
Applicant: 삼성전자주식회사
CPC classification number: H04L9/0891 , H04L9/0836 , H04L63/062 , H04L63/065 , H04L63/104 , H04W12/04
Abstract: A key update method and a key update device using the same are provided to perform a member key update process by using only update data in on-line states of devices. An encrypted data storage process is performed to store encrypted data including an updated node key in a database(910) of an update server in response to a node key update request for a group. A member(920) generates member update data by selecting data necessary for producing a key prior to an on-line state from the encrypted data including the updated node key. A device corresponding to the member of the on-line state performs a key update process for the member by using the member update data.
Abstract translation: 提供了一种密钥更新方法和使用该更新方法的密钥更新装置，以通过仅使用在设备的在线状态的更新数据来执行成员密钥更新处理。 执行加密数据存储处理，以响应于对于组的节点密钥更新请求，将包括更新的节点密钥的加密数据存储在更新服务器的数据库（910）中。 成员（920）通过从包括更新的节点密钥的加密数据中选择在在线状态之前产生密钥所必需的数据来生成成员更新数据。 对应于在线状态的成员的设备通过使用成员更新数据来执行该成员的密钥更新处理。
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公开(公告)号：KR1020080032480A
公开(公告)日：2008-04-15
申请号：KR1020060098374
申请日：2006-10-10
Applicant: 삼성전자주식회사
CPC classification number: G06F17/30961
Abstract: A node identifier generation method in a tree structure is provided to enable each communication device to first analyze padding information when analyzing node identifiers included in destination addresses of received packets, thereby easily deciding on locations of nodes within a tree structure, consequently communication of the communication devices can be very efficiently processed. A location information storage(512) stores location information on a path reaching up to a target node from a root node of a tree. A padding information storage(514) stores padding information which includes depth information and a padding code of the target node. The location information is generated by sequentially allocating branch identifiers assigned in every branch up to the target node from the root node. The padding information is generated by inserting the padding code selected from values except a group identifier of the target node, as much as the depth information. A receiver(520) that consist of an index receiver(522) and a data receiver(524) receives a packet, which includes index information and data, from transmitters of other nodes that belong to a tree structure. A controller(530) compares a destination address included in the index information with the information stored at a node identifier storage(510).
Abstract translation: 提供树结构中的节点标识符生成方法，以使得每个通信设备能够在分析包含在接收到的分组的目的地地址中的节点标识符时首先分析填充信息，从而容易地确定树结构内的节点的位置，从而进行通信 设备可以非常有效地处理。 位置信息存储（512）存储从树的根节点到达目标节点的路径上的位置信息。 填补信息存储（514）存储包含目标节点的深度信息和填充码的填充信息。 通过从根节点依次分配在每个分支中直到目标节点分配的分支标识符来生成位置信息。 通过插入从目标节点的组标识符以外的值中选择的填充码与深度信息一样多的方式生成填充信息。 由索引接收器（522）和数据接收器（524）组成的接收机（520）从属于树结构的其他节点的发射机接收包括索引信息和数据的分组。 控制器（530）将包括在索引信息中的目的地地址与存储在节点标识符存储器（510）处的信息进行比较。
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公开(公告)号：KR1020070074397A
公开(公告)日：2007-07-12
申请号：KR1020060002450
申请日：2006-01-09
Applicant: 삼성전자주식회사
CPC classification number: H04L9/0844 , H04L9/3271 , H04L63/06 , H04L63/0823 , H04L2209/80
Abstract: A method and an apparatus for sharing ownership using a secret key of a home network remote-controller are provided to increase security based on a security key and share the ownership with an owner of a device, a family, or a guest. A method for sharing ownership using a secret key of a home network remote-controller to use a first device by receiving and sharing the ownership from a main remote-controller having the ownership of the first device, includes the steps of: requesting sharing of the ownership to the main remote-controller(S302); receiving an ownership authentication key which is generated based on the secret key from the main remote-controller(S304); and transmitting the ownership authentication key to the first device, and receiving a service from the first device(S306).
Abstract translation: 提供一种使用家庭网络遥控器的秘密密钥共享所有权的方法和装置，以增加基于安全密钥的安全性并与设备，家庭或客户的所有者分享所有权。 一种使用家庭网络遥控器的秘密密钥共享所有权的方法，通过从具有所述第一设备的所有权的主遥控器接收和共享所有权来使用第一设备，包括以下步骤：请求共享 对主遥控器的所有权（S302）; 接收基于来自主遥控器的秘密密钥生成的所有权认证密钥（S304）; 以及将所述认证密钥发送到所述第一设备，以及从所述第一设备接收服务（S306）。
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公开(公告)号：KR1020070025499A
公开(公告)日：2007-03-08
申请号：KR1020050081741
申请日：2005-09-02
Applicant: 삼성전자주식회사
CPC classification number: H04L9/0891 , H04L2209/601 , H04L2209/805
Abstract: A method and a system for encrypting an RF-ID(Radio-Frequency-Identification) tag using a broadcast encryption type are provided to improve convenience of a user by inhibiting an arbitrary attacker from performing an access-lock for the RF-ID tag. In a system(100) for encrypting an RF-ID tag(120) using a broadcast encryption type, an ID(identification) of the RF-ID tag(120) is encrypted. An index, a header, and the encrypted ID are generated and stored in an inner storage according to information from readers(131-137). The readers(131-137) are allowed to read the RF-ID tag(120). The encrypted ID is stored in the RF-ID tag(120) to distribute. When the encrypted ID is received from the arbitrary reader(131-137), the index and the header corresponding to the received encrypted ID are transmitted to the corresponding reader(131-137).
Abstract translation: 提供了使用广播加密类型加密RF-ID（射频识别）标签的方法和系统，以通过禁止任意的攻击者对RF-ID标签执行访问锁来提高用户的便利性。 在用于使用广播加密类型加密RF-ID标签（120）的系统（100）中，RF-ID标签（120）的ID（标识）被加密。 根据来自读取器（131-137）的信息，生成索引，标题和加密的ID并存储在内部存储器中。 读卡器（131-137）被允许读取RF-ID标签（120）。 加密的ID存储在RF-ID标签（120）中以进行分发。 当从任意的读取器（131-137）接收到加密的ID时，将与接收到的加密ID对应的索引和标题发送给对应的读取器（131-137）。
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公开(公告)号：KR1020060097286A
公开(公告)日：2006-09-14
申请号：KR1020050018392
申请日：2005-03-05
Applicant: 삼성전자주식회사
IPC: H04L9/32
CPC classification number: H04L9/14 , H04L9/3247 , H04L2209/463 , H04L2209/56
Abstract: 본 발명은 테이블을 구성하고 있는 비밀키들을 효율적으로 사용함으로서 생성할 수 있는 디지털서명의 개수를 증가시킬 수 있는 방안을 제안한다. 이를 위해 본 발명은 그리스머 코드를 이용하여 디지털서명을 생성하는 방안을 제안한다. 즉, 그리스머 코드(Griesmer code)를 이용하여 전달할 메시지를 설정된 길이를 갖는 코드워드로 변환하고, 변환된 코드워드를 구성하고 있는 각 비트를 테이블을 구성하고 있는 복수 개의 비밀키들 중 하나의 비밀키에 대응시키고, 대응된 비밀키들을 조합하여 상기 디지털서명을 생성하는 디지털서명 생성 장치를 제안한다. 또한 그리스머 코드를 이용하여 수신한 메시지를 설정된 길이를 갖는 코드워드로 변환하고, 변환한 코드워드를 구성하고 있는 각 비트를 테이블을 구성하고 있는 복수 개의 공개키들 중 하나의 공개키에 대응시키고, 대응된 공개키를 조합한 값과 수신한 디지털서명을 해쉬한 값이 동일한 지 여부를 확인하는 디지털서명 수신 장치를 제안한다.
디지털 서명, 멀티 타임 서명, 해쉬 함수, 일방향 함수, 비밀키, 공개키Abstract translation: 本发明提出了一种用于增加可以通过有效地使用构成表的秘密密钥来生成的数字签名的数量的方法。 为此，本发明提出了一种使用希腊mercode生成数字签名的方法。 也就是说，通过使用希腊合并码将要发送的消息转换成具有预定长度的码字，并且构成转换后的码字的每个比特被发送到多个秘密密钥中的一个 并通过组合相应的密钥来生成数字签名。 也将通过使用润滑脂的Merced代码作为代码字具有预定长度，对应于构成所述转换后的码字，所述多个公共密钥组成表中的公开密钥的各个比特接收到的消息， 并且确认通过组合相应的公共密钥和接收到的数字签名的散列值所获得的值是否相同。
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