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1. 发明申请

WO2023041863A1 PROCEDES ET DISPOSITIFS D'AUTHENTIFICATION ET DE VERIFICATION DE NON-REVOCATION 审中-公开
公开(公告)号：WO2023041863A1
公开(公告)日：2023-03-23
申请号：PCT/FR2022/051705
申请日：2022-09-09
申请人： ORANGE
发明人： SANDERS, Olivier
IPC分类号： H04L9/30 , H04L9/32
摘要： Une liste de révocation (LR) comporte au moins une paire (hi, k) extraite d'une signature générée par une entité révoquée, où hi est un élément d'un groupe mathématique (Gl) et k = hixi, où xi est un secret de ladite entité révoquée. Une première entité (100) envoie (E60), à une deuxième entité (200), pour s'authentifier auprès d'elle : une signature (SIG) générée par ladite première entité (100) pour cette authentification; une chaîne de caractères (STR); un élément (Ci) du groupe (Gl) pour chaque paire (hi, k) de la liste de révocation (LR); et une preuve (P) à divulgation nulle de connaissance que ladite première entité (100) a utilisé un secret (X100) de cette première entité (100) et la chaîne de caractères pour obtenir ledit élément de groupe (Ci) pour chacune des paires de ladite liste de révocation (LR). La deuxième entité rejette (F70) ladite première entité (100) si ladite preuve a divulgation nulle de connaissance (P) n'est pas valide ou si pour au moins une dite paire (hi, k), l'élément de groupe (Ci) est tel que Ci = hiA, où A est une valeur connue.

2. 发明申请

WO2023014969A1 Compact Adaptively Secure Functional Encryption For Attribute-Weighted Sums 审中-公开
公开(公告)号：WO2023014969A1
公开(公告)日：2023-02-09
申请号：PCT/US2022/039569
申请日：2022-08-05
申请人： NTT RESEARCH, INC.
发明人： DATTA, Pratish , PAL, Tapas
IPC分类号： H04L9/14 , H04L9/30 , H04L9/06 , H04L9/08
摘要： Adaptively simulation secure functional encryption systems, methods, network devices, and machine-readable media for attribute-weighted sums are implemented. A secret key corresponds to some weight function f, and decryption recovers a weighted sum. The schemes are built upon asymmetric bilinear groups of prime order and the security is derived under the standard (bilateral) k-Linear (k-Lin) assumption.

3. 发明申请

WO2023001461A1 ENFORCING CONDITIONS ON BLOCKCHAIN TRANSACTIONS 审中-公开
公开(公告)号：WO2023001461A1
公开(公告)日：2023-01-26
申请号：PCT/EP2022/066649
申请日：2022-06-20
申请人： NCHAIN LICENSING AG
发明人： ZHANG, Wei
IPC分类号： H04L9/00 , H04L9/30 , H04L9/32 , G06Q20/06
摘要： A computer-implemented method of enforcing conditions on a second blockchain transaction using a first blockchain transaction, wherein a first one of the conditions is that, when a first unlocking script of the second transaction is executed alongside a first locking script of the first transaction, a representation of the second transaction is output to memory, wherein the representation is based on a plurality of fields of the second transaction and a first output of the first transaction, and wherein the method comprises: generating the first transaction, wherein the first transaction comprises a first output, wherein the first output comprises the first locking script, and wherein the first locking script comprises: a message sub-script; a signature sub-script; a public key corresponding to a private key; and a verification sub-script.

4. 发明申请

WO2023000084A1 METHOD AND SYSTEM FOR SHARING SENSOR INSIGHTS BASED ON APPLICATION REQUESTS 审中-公开
公开(公告)号：WO2023000084A1
公开(公告)日：2023-01-26
申请号：PCT/CA2022/051105
申请日：2022-07-15
申请人： BLACKBERRY LIMITED
发明人： MUKHERJEE, Biswaroop , FERGUSON, Geordon Thomas
IPC分类号： H04L9/00 , H04L9/30
摘要： A method at a first domain for obtaining at least one insight from a second domain, the method including registering an application with an anchor in the first domain; providing, from the anchor to the application, a first message signed by the anchor; sending, from the first domain to a network domain, the signed message; receiving, from the network domain, at least one signed token, each of the at least one signed token being for a synthetic sensor on the second domain, where the synthetic sensor provides an insight; sending a request message to the second domain, the request message requesting the insight and including the at least one token; and receiving the insight from a synthetic sensor associated with the at least one token.

5. 发明申请

WO2023287977A1 SYSTEM AND METHOD FOR A TRUSTED DIGITAL IDENTITY PLATFORM 审中-公开
公开(公告)号：WO2023287977A1
公开(公告)日：2023-01-19
申请号：PCT/US2022/037121
申请日：2022-07-14
申请人： THE AUTO CLUB GROUP
发明人： PADINJARUVEETIL, Gopal
IPC分类号： G06F21/62 , G06F21/33 , G06F21/50 , G06F16/9535 , H04L9/30 , H04L9/00
摘要： A system and method is disclosed for a digital identity (DI) management platform. A carbon identification may be generated to include personal information unique to a user. The personal information may be authenticated by an external entity (e.g., governmental agency) to the digital identity management platform. A silicon identification may be generated for multiple devices registered to the user and may include a unique identifier for each device. A digital identity may be generated that links the carbon identification and the silicon identification The digital identity may be stored within a digital wallet accessible on each device by a user profile created and secured using a blockchain process. A request to access the personal information stored within the digital identity may be received and a predefined trust level will determine the amount of personal information to be provided.

6. 发明申请

WO2023283789A1 一种安全通信方法及装置、终端设备、网络设备审中-公开
公开(公告)号：WO2023283789A1
公开(公告)日：2023-01-19
申请号：PCT/CN2021/105852
申请日：2021-07-12
申请人： OPPO广东移动通信有限公司
发明人：许阳 , 曹进 , 任雄鹏 , 马如慧 , 杨元元 , 徐伟杰
IPC分类号： H04L9/08 , H04L9/30 , H04W12/041
摘要：本申请实施例提供一种安全通信方法及装置、终端设备、网络设备，该方法包括：终端设备接收网络设备发送的第一请求消息；所述终端设备基于所述第一请求消息生成第一会话密钥；所述终端设备基于所述第一会话密钥对第一消息进行安全处理，得到第一响应消息，向所述网络设备发送所述第一响应消息。网络设备向终端设备发送第一请求消息，以及接收所述终端设备发送的第一响应消息；所述网络设备基于所述第一响应消息生成第二会话密钥，基于所述第二会话密钥从所述第一响应消息中获取第一消息。

7. 发明申请

WO2023279171A1 SYSTEM AND METHOD FOR SECURE STORAGE USING OFFLINE PUBLIC KEYS 审中-公开
公开(公告)号：WO2023279171A1
公开(公告)日：2023-01-12
申请号：PCT/AU2022/050720
申请日：2022-07-08
申请人： RICHARDSON, Ric B
发明人： RICHARDSON, Ric B
IPC分类号： H04L9/40 , G06F21/62 , H04L9/14 , H04L9/30 , H04L9/32 , G06Q50/18
摘要： There is described a method of storing at least one Digital data item of a user; said user characterised by proof of identity data; said method comprising : constructing a data pool; said data pool comprising a digital data record which Includes said at least one digital data item and said proof of identity data; said user associating an ID number selected by the user with the data pool; encrypting the data pool using a symmetric key of a symmetric encryption algorithm so as to form a symmetric encrypted data pool; encrypting the symmetric key using a public key of an asymmetric encryption algorithm so as to form an asymmetric encrypted symmetric key; storing on a server the symmetric encrypted data pool referenced against and together with the ID number and the asymmetric encrypted symmetric key and the public key; said server selectively connectable to the Internet; storing in an off-line storage facility the public key and its associated private key. Also described is a method of recovering said at least one Digital item stored on said server; said method comprising : said user providing an independent nondigital agent with said ID number; said independent nondigital agent accessing said server so as to recover the symmetric encrypted data pool referenced against and together with the ID number and the asymmetric encrypted symmetric key and the public key; said independent nondigital agent accessing the off-line storage facility thereby to recover from said off-line storage facility the public key and its associated private key; said independent nondigital agent utilising the private key to decrypt the asymmetric encrypted symmetric key thereby to recover the symmetric key; said independent nondigital agent utilising the symmetric key and the symmetric encryption algorithm to decrypt the symmetric encrypted data pool so as to recover the data pool; said independent nondigital agent accessing the proof of identity data contained in the data pool; said independent nondigital agent communicating with said user which provided said ID number by entering into a communication interaction so as to verify the identity of said user with reference to said proof of identity data to a predetermined level of certainty; if said independent nondigital agent via said communication interaction verifies the identity of said user to said predetermined level of certainty then said independent nondigital agent communicates said at least one Digital data item to said user.

8. 发明申请

WO2023275775A1 METHOD AND SYSTEM FOR DECRYPTION OF END-TO-END ENCRYPTED MESSAGES FOR LAWFUL INTERCEPTION 审中-公开
公开(公告)号：WO2023275775A1
公开(公告)日：2023-01-05
申请号：PCT/IB2022/056042
申请日：2022-06-29
申请人： TELECOM ITALIA S.P.A.
发明人： GOLIC, Jovan
IPC分类号： H04L9/08 , H04L9/30 , H04L9/40 , H04L63/0442 , H04L63/164 , H04L63/306 , H04L9/0841 , H04L9/085 , H04L9/0894 , H04L9/3073
摘要： Method for decryption of end-to-end encrypted messages, wherein said messages are encrypted through user plane data encryption, said method comprising: providing at least a first main computer system (LEAI) and one or more first auxiliary computer systems (DEAI.-.DEAI); generating and storing, at the first main computer system (LEA1) and each first auxiliary computer system (DEAI.-.DEAI), a respective random number x0', x1'...xn', wherein each said respective random number is a share in a linear secret sharing scheme, wherein the secret is x', wherein said secret x' can be obtained from xO' and an arbitrary subset of k' out of n of said respective random numbers (xl'...xn'), wherein k' is equal to or larger than 2 and equal to or smaller than n, wherein the secret x' is not calculated; generating and storing, at the first main computer system (LEA1) and each of said first auxiliary computer systems (DEAI.-.DEAI), a respective first escrow encryption public key share, on the basis of the respective random number; sending, from each first auxiliary computer system (DEAI.-.DEAI) to the first main computer system (LEA1) the respective first escrow encryption public key share; calculating, at the first main computer system (LEA1), a first escrow encryption public key by combining the first escrow encryption public key share of the first main computer system (LEA1) with the first escrow encryption public key shares of the first auxiliary computer systems, wherein x' is a first escrow decryption private key for decrypting strings which have been encrypted with said first escrow encryption public key; determining, by a telecommunications network (TLC), that a first user equipment (UEA) is to send user plane data to a second user equipment (UEB); determining, by a cooperation of the first main computer system (LEA1) and said telecommunications network (TLC), if said first user equipment (UEA) and/or said second user equipment (UEB) is a target of lawful interception associated with the first main computer system (LEA1); when user plane data are to be sent from said first user equipment (UEA) to said second user equipment (UEB) and said first user equipment (UEA) and/or said second user equipment (UEB) is a target of lawful interception, configuring said first user equipment (UEA) to generate: an end-to-end encrypted message (CT) obtained by encrypting, with a session key (K), a plain message (PT) formed by said user plane data, wherein said end-to-end encrypted message (CT) is intended for said second user equipment (UEB), to be decrypted by using the session key (K); an attachment (K') to be associated to said end-to-end encrypted message (CT), wherein said attachment (K') includes at least an escrow encrypted key (K), obtained by encrypting said session key (K) using an escrow encryption function and said first escrow encryption public key, wherein an escrow decryption function corresponding to said escrow encryption function is homomorphic with respect to said first escrow decryption private key x'. The method further comprises: receiving from the first user equipment (UEA), at the first main computer system (LEA1) through said communications network (TLC), said end-to-end encrypted message (CT) and said attachment (K'); forwarding via said communications network (TLC) said end-to-end encrypted message (CT) to said second user equipment (UEB), without said attachment (K'); sending from the first main computer system (LEA1) to each first auxiliary computer system (DEAI.-.DEAI) a partial escrow decryption request (Req_Dec); receiving at the first main computer system (LEA1), from each first auxiliary computer system (DEAI.-.DEAI), a partial escrow decryption response (Dec) calculated on the basis of the respective random number xi' and calculating a partial escrow decryption result of said first main computer system (LEA1) on the basis of the random number xO'; decrypting said escrow encrypted key (K) at the first main computer system (LEA1) using the partial escrow decryption responses (Dec) from a subset of k' out of n first auxiliary computer systems (.DEAI.-.DEAI) and the partial escrow decryption result of said first main computer system (LEA1), thereby obtaining the session key (K) in a shared way; decrypting said end-to-end encrypted message (CT) using said session key (K), thereby obtaining said plain message (PT) at the first main computer system (LEA1).

9. 发明申请

WO2022263204A1 METHOD AND SYSTEM TO RETRIEVE PUBLIC KEYS IN A MEMORY CONSTRAINED SYSTEM 审中-公开
公开(公告)号：WO2022263204A1
公开(公告)日：2022-12-22
申请号：PCT/EP2022/065145
申请日：2022-06-03
申请人： CONTINENTAL AUTOMOTIVE TECHNOLOGIES GMBH
发明人： WANG, Yi Estelle , SURIYAKUMAR, Vijayaraj
IPC分类号： H04L9/08 , H04L9/30 , H04L9/14
摘要： Present invention discloses a method and a system for retrieving public keys in a memory constrained system. The method comprising generating a plurality of public cryptographic keys and private cryptographic keys using a cryptographic technique and characterizing each of the plurality of public cryptographic keys and corresponding private cryptographic keys into an associated first cryptographic component and a second cryptographic component. Thereafter, the method comprising creating at least one relationship matrix comprising the first cryptographic component of each of the plurality of public cryptographic keys and corresponding private cryptographic keys based on predetermined rules. Subsequently, the method comprising receiving a first cryptographic component and a second cryptographic component of a private cryptographic key when a public cryptographic key is required and retrieving the public cryptographic key based on the first cryptographic component and the second cryptographic component of the private cryptographic key using the relationship matrix and the predetermined rules.

10. 发明申请

WO2022237409A1 蓝牙设备以及密钥确定系统审中-公开
公开(公告)号：WO2022237409A1
公开(公告)日：2022-11-17
申请号：PCT/CN2022/085729
申请日：2022-04-08
申请人： OPPO广东移动通信有限公司
发明人：许超杰
IPC分类号： H04W4/80 , H04W12/47 , H04L9/30 , H04W12/0431
摘要：本申请实施例提供了一种蓝牙设备以及密钥确定系统，涉及蓝牙技术领域。所述蓝牙设备包括n个蓝牙子设备，n为大于1的整数，n个蓝牙子设备具有相同的公私钥对；第一蓝牙子设备，用于向第二蓝牙子设备发送监听指示信息；第一蓝牙子设备，还用于向终端发送公私钥对中的公钥，以及接收来自于终端的终端公钥；第二蓝牙子设备，用于在接收到来自于第一蓝牙子设备的监听指示信息后，监听获取终端公钥，基于终端公钥和公私钥对中的私钥，确定终端与第一蓝牙子设备之间的链路信息。本申请实施例中相较于相关技术中第一蓝牙子设备将链路信息发送给第二蓝牙子设备，提高了蓝牙设备的安全性，降低了蓝牙设备的安全风险。

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