专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

51. 发明申请

WO2007113217A1 ENCRYPTION METHOD FOR HIGHEST SECURITY APPLICATIONS 审中-公开
标题翻译：用于最高安全性应用的加密方法
公开(公告)号：WO2007113217A1
公开(公告)日：2007-10-11
申请号：PCT/EP2007/053048
申请日：2007-03-29
申请人： SCHUMACHER, Alain
发明人： SCHUMACHER, Alain
IPC分类号： H04L9/18 , G06F7/58
CPC分类号： H04L9/0656 , H04L9/3239 , H04L2209/56
摘要： A method for encrypting a message M of l M -bit length, comprises the steps of a) providing a first random bit sequence of lR-bit length, I R ≥ I M ; b) subdividing said message M into unitary message strings of /s-bits, wherein I S ≤ I M ; c) for each unitary message string, executing an XOR-operation of said unitary message string with l s bits of said first random bit sequence for generating an encrypted unitary string; and d) assembling said encrypted unitary strings into a cipher text. According to the invention the assembly of the cipher text is such, that the positions of said encrypted unitary strings in said cipher text are randomly permuted with respect to the positions of the corresponding unitary message strings in said message. In other words, the step of assembling said encrypted unitary strings into a cipher text comprises the step of randomly permuting the positions of said encrypted unitary strings in said cipher text with respect to the positions of the corresponding unitary message strings in said message.
摘要翻译：一种用于加密1比特长度的消息M的方法包括以下步骤：a）提供1比特长度的第一随机比特序列，其中， _{中号; b）将所述消息M细分为/ s比特的单位消息串，其中I S = M M; c）对于每个单一消息串，执行所述单一消息串的XOR操作，其中所述第一随机比特序列的比特位用于生成加密的单一字符串; 以及d）将所述加密的单一字符串组合成密文。根据本发明，密文的组合是这样的，即在所述密文中的所述加密的单一字符串的位置相对于所述消息中相应的单一消息字符串的位置被随机地置换。换句话说，将加密的单一字符串组合成密文的步骤包括以下步骤：相对于所述消息中的对应的单一消息字符串的位置，随机地排列所述加密单位字符串在所述密文中的位置。}

52. 发明申请

WO2007071265A1 GROUP SIGNATURE SCHEME WITH IMPROVED EFFICIENCY, IN PARTICULAR IN A JOIN PROCEDURE 审中-公开
标题翻译：具有改进效率的集体签字计划，特别是在合作程序
公开(公告)号：WO2007071265A1
公开(公告)日：2007-06-28
申请号：PCT/EP2005/013651
申请日：2005-12-19
申请人： TELECOM ITALIA S.P.A. , ZACCONE, Pier, Luigi , LEONE, Manuel , CAPRELLA, Ettore , BERGADANO, Francesco , CAVAGNINO, Davide , DAL CHECCO, Paolo
发明人： ZACCONE, Pier, Luigi , LEONE, Manuel , CAPRELLA, Ettore , BERGADANO, Francesco , CAVAGNINO, Davide , DAL CHECCO, Paolo
IPC分类号： H04L9/32
CPC分类号： H04L9/3239 , H04L9/0833 , H04L9/0891 , H04L9/3218 , H04L9/3255
摘要： A method for managing a group signature scheme envisages, in a setup procedure for group initialization, generating, by a group manager, a group public key (GK). In a join procedure for the group manager to add a new member (A i ) to the group, the method envisages: generating, by the new member (A i ), user information (K i , J , K S i , J ) and providing the generated user information (K i , J , K S i , J ) to the group manager; and computing, by the group manager, a membership information (C i ) for the new member (A i ) based on the user information (K i , J ) received by the new member (A i ) and on the group public key (GK), and providing to the new member (A i ) the computed membership information (C i ). In particular, the membership information (C i ) is computed, by the group manager, as a function of the inverse of a given hash function (b(y)) of the user information (K i , J ). In a sign procedure for a group member (A i ) to sign a message (M) on behalf of the group, the method envisages: using, by the group member (A i ), the membership information (C i ) and the user information (K i ,j, K S i , J ) . The method further envisages the use of digital certificates, in order for the group member (A i ) to prove to the group manager the possession of said user information (K i , J K S i , J ) .
摘要翻译：用于管理组签名方案的方法在组初始化的设置过程中设想由组管理器生成组公钥（GK）。在组管理者向组添加新成员（A _{i ）的连接过程中，该方法设想：由新成员（A _{i ）生成，用户信息（K＆lt; i＆lt; / i＆gt;，＆lt; S＆gt;，＆lt; S＆}}

53. 发明申请

WO2007030920A3 SYSTEM AND METHOD FOR CONTROLLING DISTRIBUTION OF ELECTRONIC INFORMATION 审中-公开
标题翻译：用于控制电子信息分配的系统和方法
公开(公告)号：WO2007030920A3
公开(公告)日：2007-06-07
申请号：PCT/CA2006001485
申请日：2006-09-12
申请人： SAND BOX TECHNOLOGIES INC , SAINANEY NARAYAN RAJ
发明人： SAINANEY NARAYAN RAJ
IPC分类号： G06F21/00 , G06Q30/00 , H04L9/32
CPC分类号： H04L63/083 , G06F21/6209 , H04L9/3239 , H04L9/3271 , H04L2209/60
摘要： A method for managing access to electronic documents, the documents being viewable by recipients only when viewed in a document viewer upon satisfaction of an access policy embedded in the document, the method comprising the steps of opening the document for viewing in the document viewer by the recipient, executing code scripts within the document to obscure viewing of selected pages of the document upon the document being opened, communicating with an authentication server, by the viewer, for authenticating the recipient upon the recipient attempting to read the document, and unobscuring the selected pages by the viewer upon receipt of the recipient authentication.
摘要翻译：一种用于管理对电子文档的访问的方法，所述文档只有在满足嵌入文档中的访问策略的情况下才在文档查看器中查看时才能被收件人查看，该方法包括以下步骤：打开文档以在文档查看器中查看收件人，在文档中执行代码脚本以掩盖在文档被打开的同时由查看者与认证服务器进行通信的文档的选定页面的查看，以便在接收者尝试读取该文档时对该接收者进行认证，并且对所选择的页面进行解读收到接收方认证后，浏览者会收到页面。

54. 发明申请

WO2007016787A3 DATA ARCHIVING SYSTEM 审中-公开
标题翻译：数据存档系统
公开(公告)号：WO2007016787A3
公开(公告)日：2007-04-12
申请号：PCT/CA2006001312
申请日：2006-08-09
申请人： NEXSAN TECHNOLOGIES CANADA INC , GOSNELL THOMAS F
发明人： GOSNELL THOMAS F
IPC分类号： G06F17/30 , G06F21/00
CPC分类号： G06F17/30073 , G06F17/30067 , G06F17/30085 , G06F21/6209 , G06F21/6218 , G06F2221/2107 , G06F2221/2151 , H04L9/083 , H04L9/0897 , H04L9/3239 , H04L9/3242 , H04L63/061
摘要： An encrypted file storage solution consists of a cluster of processing nodes, external data storage, and a software agent (the "File System Watcher"), which is installed on the application servers. Cluster sizes of one node up to many hundreds of nodes are possible. There are also remote "Key Servers" which provide various services to one or more clusters. The preceding describes a preferred embodiment, though in some cases it may be desirable to "collapse" some of the functionality into a smaller number of hardware devices, typically trading off cost versus security and fault-tolerance.
摘要翻译：加密文件存储解决方案包含一组处理节点，外部数据存储和安装在应用程序服务器上的软件代理（“文件系统观察程序”）。一个节点最多可达数百个节点的簇大小是可能的。还有远程的“密钥服务器”，它为一个或多个集群提供各种服务。前面描述了一个优选实施例，尽管在一些情况下，可能希望将一些功能“折叠”成较少数量的硬件设备，通常交换成本与安全性和容错性。

55. 发明申请

WO9934552A9 CRYPTOGRAPHIC SYSTEM AND METHOD WITH FAST DECRYPTION 审中-公开
公开(公告)号：WO9934552A9
公开(公告)日：1999-10-28
申请号：PCT/US9819349
申请日：1998-09-16
申请人： MICROSOFT CORP
发明人： DAI WEI
IPC分类号： G09C1/00 , H04L9/30
CPC分类号： H04L9/302 , H04L9/3239 , H04L2209/08
摘要： A crytography system improves the decryption speed in the RSA algorithm by taking advantage of certain subgroups of Zn*. The cryptography system employs a new family of trapdoor permutations based on exponentiation in subgroups of Zn*.
摘要翻译：通过利用Zn *的某些子群，一种冷冻系统提高了RSA算法中的解密速度。加密系统采用基于Zn *亚组中的取幂的新的陷门置换系列。

56. 发明申请

WO2019152732A1 SYSTEMS AND METHODS FOR PRIVACY MANAGEMENT USING A DIGITAL LEDGER 审中-公开
公开(公告)号：WO2019152732A1
公开(公告)日：2019-08-08
申请号：PCT/US2019/016177
申请日：2019-01-31
申请人： CABLE TELEVISION LABORATORIES, INC.
发明人： SCRIBER, Brian A. , GOERINGER, Steven J. , HINTZMAN, Zane
IPC分类号： H04L29/06 , H04L9/08 , G06F21/33
CPC分类号： G06F21/602 , G06F16/27 , G06F21/33 , G06F21/6245 , H04L9/0825 , H04L9/30 , H04L9/3239 , H04L63/0435 , H04L63/0442 , H04L63/0823 , H04L2209/38
摘要： A system for securely storing privacy information is provided. The system includes a plurality of nodes configured to maintain a distributed database containing consumer privacy information having a plurality of entries. Each entry of the plurality of entries in the distributed database is (i) encrypted with a unique encryption key associated with a consumer and the distributed database, and (ii) indexed based on a public encryption key associated with the consumer. A most recent entry associated with the consumer includes current personal information about the consumer. A first entry associated with the consumer includes an encrypted version of the unique encryption key.

57. 发明申请

WO2019130051A1 METHOD AND APPARATUS FOR DYNAMIC DISCOVERY OF A BLOCKCHAIN COMPONENT IN A CLOUD COMPUTING SYSTEM 审中-公开
公开(公告)号：WO2019130051A1
公开(公告)日：2019-07-04
申请号：PCT/IB2017/058529
申请日：2017-12-29
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： KEMPF, James , SHUKLA, Anshu , NARENDRA, Nanjangud Chandrasekhara Swamy , NAYAK, Sambit
IPC分类号： H04L29/06 , H04L12/46 , H04L29/12 , H04W12/06 , H04W84/08 , H04L12/18
CPC分类号： H04L12/4641 , H04L9/3239 , H04L12/185 , H04L61/2015 , H04L61/2069 , H04L63/12 , H04L2209/38 , H04W84/08
摘要： A method and a network device in a cloud computing system, including a first blockchain component that is one of a plurality of blockchain components forming a blockchain system, of dynamic discovery of another blockchain component of the blockchain system are described. A multicast address including a multicast group identifier is generated. The multicast group identifier is generated at least in part based on a genesis block identifier that uniquely identifies a blockchain serviced by the blockchain system. The network device joins a multicast group identified by the multicast group identifier; and transmits a message destined to the multicast address, where the message includes a request for a unicast address of another component of the blockchain system.

58. 发明申请

WO2019129970A1 PROCÉDÉ D'ÉTABLISSEMENT D'UNE CLÉ CRYPTOGRAPHIQUE PARTAGÉE ENTRE UN PREMIER ET UN SECOND TERMINAUX 审中-公开
公开(公告)号：WO2019129970A1
公开(公告)日：2019-07-04
申请号：PCT/FR2018/053481
申请日：2018-12-20
申请人： VIACCESS
发明人： BOIVIN, Mathieu , DUBROEUCQ, Gilles
IPC分类号： H04L9/08 , H04L9/32 , H04L9/14
CPC分类号： H04L9/0838 , H04L9/0822 , H04L9/0866 , H04L9/14 , H04L9/3239 , H04L2209/80
摘要： Procédé dans lequel : - un premier terminal transmet (124) K cryptogrammes KA* k,20 et une empreinte numérique KA 20 -Check d'une clé KA 20 , chaque cryptogrammes KA* k,20 ayant été obtenu en chiffrant (120) la clé KA 20 à l'aide d'une clé KS k,20 respective construite à partir d'une donnée caractéristique extraite d'ondes électromagnétiques reçues par ce premier terminal, - un second terminal : - déchiffre (156) chaque cryptogramme KA* k,20 reçu à l'aide d'une clés KS m,22 et obtient ainsi une clé KA 22 , chaque clé KS m,22 ayant été construite (136-144, 154) en procédant comme pour les clés KS k,20 mais en utilisant les données caractéristiques extraites d'ondes électromagnétiques reçues par ce second terminal, - construit (158) une empreinte numérique KA 22 -Check de chaque clé KA 22 , - seulement pour la clé KA 22 obtenue pour laquelle les empreintes numériques KA 20 -Check et KA 22 -Check sont identiques, mémorise (164) cette clé KA 22 comme étant la clé partagée avec le premier terminal.

59. 发明申请

WO2019101724A1 ACCESS CONTROL FOR DIGITAL ASSETS 审中-公开
公开(公告)号：WO2019101724A1
公开(公告)日：2019-05-31
申请号：PCT/EP2018/081891
申请日：2018-11-20
申请人： BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
发明人： MONTEATH, Iain , DANIEL, Joshua , TATE, Jonathan
IPC分类号： G06F21/10 , H04L9/32 , H04L29/06
CPC分类号： H04L9/3239 , G06F21/10 , H04L63/10 , H04L2209/42 , H04L2209/56
摘要： A computer implemented method of controlling access to a digital asset specifying how an artefact is to be rendered, the method comprising: receiving the digital asset and an indication of a first transaction in a decentralised sequential transactional database; verifying the digital asset by evaluating a digital hash of the asset to compare with a hash stored in the first transaction and, responsive to the verification, securely storing the digital asset; generating a second transaction in the database to indicate the availability of the digital asset for rendering the artefact; receiving a request to access the digital asset by a requesting renderer, the request including an indication of a third transaction in the database; accessing the third transaction and responsive to a determination that the third transaction indicates that the requesting renderer is authorised to access the digital asset for rendering the artefact, securely communicating the digital asset to the requesting renderer.

60. 发明申请

WO2019089013A1 CRYPTOGRAPHIC KEY GENERATION SYSTEM AND METHOD 审中-公开
公开(公告)号：WO2019089013A1
公开(公告)日：2019-05-09
申请号：PCT/US2017/059371
申请日：2017-10-31
申请人： VISA INTERNATIONAL SERVICE CORPORATION
发明人： WANG, Quan
IPC分类号： H04L9/08 , H04L9/06
CPC分类号： H04L9/0872 , H04L9/0866 , H04L9/0869 , H04L9/3239 , H04L9/3247 , H04L2209/38 , H04L2209/805
摘要： A computing device may be configured to receive a set of inputs from other computing devices. The set of inputs may include inputs derived by the computing devices utilizing cryptographic keys of the computing devices. The set of inputs may be stored in a blockchain such that the inputs are tamper resistant. A symmetric key may be generated (periodically, upon expiration of a timer, according to a protocol set, upon request, etc.) from two or more of the set of inputs. The generated symmetric key may be distributed to the computing devices. The symmetric key may be utilized to encrypt and decrypt communications between two computing devices.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式