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1. 发明公开

EP4437682A1 ZERO KNOWLEDGE PROOF BASED CHILD KEY AUTHENTICITY 审中-公开
公开(公告)号：EP4437682A1
公开(公告)日：2024-10-02
申请号：EP22834510.4
申请日：2022-12-06
申请人： nChain Licensing AG
发明人： KIRAZ, Mehmet Sabir , PETTIT, Michaella , TARTAN, Chloe
IPC分类号： H04L9/08 , H04L9/32 , H04L9/00
CPC分类号： H04L9/50 , H04L2209/5620130101 , H04L9/3218 , H04L9/0866 , H04L9/0897 , H04L9/3242 , H04L9/3247 , H04L9/3239

2. 发明公开

EP4432192A1 MULTI-ACTOR TRANSACTION SIMULATION IN A BLOCKCHAIN NETWORK 审中-公开
公开(公告)号：EP4432192A1
公开(公告)日：2024-09-18
申请号：EP23196416.4
申请日：2023-09-08
申请人： Gearlay Technologies Inc.
发明人： ABOU DAYA, Abbas
IPC分类号： G06Q20/06 , G06Q20/36
CPC分类号： G06Q20/3678 , G06Q20/065 , G06Q2220/0020130101 , G06Q20/367 , G06Q20/389 , G06Q20/4016 , G06Q20/401 , G06Q30/06 , H04L9/50 , H04L2209/5620130101
摘要： A simulation method implemented at least in part at a node of a blockchain network enables detection of suspected malicious behaviour. When a purchase of a token of interest by a user is detected, information about other queued transactions awaiting committal to the blockchain is retrieved, and a batch of probing transactions is constructed using the information about the queued transactions. The batch includes a probing transaction representing a sale of the token by the user. At the node, the state of the blockchain is overridden so that the user's wallet and other wallets appear to contain bytecode executable to aggregate multiple transactions into a single call, and the batch of transactions is thus executed in a single call. The results are evaluated to determine whether the sale of the token by the user was successful. If the evaluation is not successful, remedial action may be taken.

3. 发明公开

EP4398141A3 COMPUTER-IMPLEMENTED SYSTEM AND METHOD FOR EXCHANGE OF DATA 审中-实审
公开(公告)号：EP4398141A3
公开(公告)日：2024-09-18
申请号：EP24177821.6
申请日：2019-03-18
申请人： nChain Licensing AG
发明人： TREVETHAN, Thomas , WRIGHT, Craig Steven
IPC分类号： H04L9/32 , H04L9/00 , G06F21/64
CPC分类号： H04L9/3218 , H04L9/50 , G06F21/64 , H04L2209/5620130101 , H04L9/008 , H04L9/3252
摘要： The invention relates to efficient zero knowledge verification of composite statements that involve both arithmetic circuit satisfiability and dependent statements about the validity of public keys (key-statement proofs) simultaneously. The method enables a prover to prove this particular statement in zero-knowledge.
More specifically, the invention relates to a computer-implemented method for enabling zero-knowledge proof or verification of a statement (S) in which a prover proves to a verifier that a statement is true while keeping a witness (W) to the statement a secret. The invention also relates to the reciprocal method employed by a verifier who verifies the proof.
The method includes the prover sending to the verifier a statement (S) having an arithmetic circuit with m gates and n wires configured to implement a function circuit and determine whether for a given function circuit output (h) and an elliptic curve point (P), the function circuit input (s) to a wire of the function circuit is equal to the corresponding elliptic curve point multiplier (s). The prover also sends individual wire commitments and/or a batched commitment for wires of the circuit, an input for a wire in the arithmetic circuit; and a function circuit output (h). The prover receives from the verifier a challenge value (x) and responding with an opening or additionally sends a proving key (PrK) to the verifier. The statement and the data enables the verifier to determine that the circuit is satisfied and calculate the elliptic curve point (P) and validate the statement, thus determining that the prover holds the witness (W) to the statement.

4. 发明授权

EP3764266B1 VERFAHREN UND VORRICHTUNG ZUM HANDELN AUF EINER ELEKTRONISCHEN HANDELSPLATTFORM 有权
公开(公告)号：EP3764266B1
公开(公告)日：2024-09-11
申请号：EP19185983.4
申请日：2019-07-12
IPC分类号： H04L9/00 , H04L9/32 , G06F21/64
CPC分类号： G06F21/64 , H04L9/3218 , H04L2209/4620130101 , H04L9/3239 , H04L2209/5620130101 , H04L9/50

5. 发明授权

EP4198790B1 TRANSACTION NFC 有权
公开(公告)号：EP4198790B1
公开(公告)日：2024-08-28
申请号：EP22212355.6
申请日：2022-12-08
IPC分类号： H04L9/40 , G06F21/44 , G06F21/72 , G06Q20/32 , H04L9/32 , H04W4/80 , H04W12/03 , H04W12/47 , G06Q20/34
CPC分类号： H04W12/47 , H04L9/3234 , H04W4/80 , G06Q20/3278 , G06F21/72 , G06F21/44 , H04W12/40 , H04W12/03 , H04L63/0435 , G06Q20/3227 , G06Q20/353 , G06Q20/352 , H04L2209/5620130101

6. 发明公开

EP4416620A1 DELEGATED CERTIFICATE AUTHORITY SYSTEM AND METHOD 审中-实审
公开(公告)号：EP4416620A1
公开(公告)日：2024-08-21
申请号：EP22881558.5
申请日：2022-09-28
申请人： Visa International Service Association
发明人： GHOSH, Pamela , GU, Wanyun , ZAMANI, Mahdi , CHRISTODORESCU, Mihai , SHEFFIELD, Cuy
IPC分类号： G06F21/33 , G06F21/64 , H04L9/32 , G06Q20/36 , H04L9/00
CPC分类号： G06F21/33 , G06Q20/36 , G06F21/64 , H04L63/0823 , H04L9/3247 , H04L9/3263 , H04L9/50 , H04L9/321 , H04L2209/5620130101

7. 发明公开

EP4416618A1 SYSTEM AND METHOD FOR CREATING NON-FUNGIBLE TOKENS (NFTS) ON A BLOCKCHAIN PLATFORM 审中-实审
公开(公告)号：EP4416618A1
公开(公告)日：2024-08-21
申请号：EP23778602.5
申请日：2023-03-24
申请人： Jio Platforms Limited
发明人： KRISHNASWAMY, Dilip , DUDIPALLI, Madhava , GUPTA, Rajeev
IPC分类号： G06F21/10 , H04L9/06 , G06Q40/04
CPC分类号： G06Q40/04 , G06F21/10 , G06Q30/0241 , G06Q30/06 , G06Q30/01 , G06Q40/02 , G06Q2220/0020130101 , H04L9/50 , H04L2209/5620130101 , H04L63/12

8. 发明授权

EP3896901B1 DISTRIBUTED COMPUTER SYSTEM AND METHOD OF OPERATION THEREOF 有权转让
公开(公告)号：EP3896901B1
公开(公告)日：2024-08-14
申请号：EP20020399.0
申请日：2020-09-07
IPC分类号： H04L9/32
CPC分类号： H04L9/3236 , H04L2209/5620130101 , H04L9/50

9. 发明授权

EP3895108B1 DISPOSITIF ET PROCÉDÉ POUR SÉCURISER DES DONNÉES SÉCURITAIRES D'UNE CARTE DE PAIEMENT BANCAIRE 有权
公开(公告)号：EP3895108B1
公开(公告)日：2024-07-24
申请号：EP19759671.1
申请日：2019-08-07
IPC分类号： G06Q20/34 , G07F7/08 , G07F7/12 , G06F21/62 , G06F21/84 , H04L9/00
CPC分类号： G06Q20/354 , G06Q20/355 , G06Q20/3558 , G07F7/0813 , G07F7/12 , H04L2209/5620130101 , G06F21/6245 , G06F21/84 , H04L9/50

10. 发明公开

EP4399632A1 VERFAHREN UND TRANSAKTIONSSYSTEM ZUM ÜBERTRAGEN VON TOKEN IN EINEM ELEKTRONISCHEN TRANSAKTIONSSYSTEMS 审中-实审
公开(公告)号：EP4399632A1
公开(公告)日：2024-07-17
申请号：EP22744113.6
申请日：2022-07-12
申请人： Giesecke+Devrient advance52 GmbH
发明人： FASCHING, Matthias , ALFERT, Klaus
IPC分类号： G06F21/60 , H04L9/32 , G06Q20/06 , G06Q20/30 , G06Q20/38
CPC分类号： G06F21/602 , H04L2209/5620130101 , H04L9/3247 , G06Q20/0655 , G06Q20/108 , G06Q20/3829 , H04L9/14 , H04L9/3213

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