Titlebook: Applied Cryptography and Network Security; 19th International C Kazue Sako,Nils Ole Tippenhauer Conference proceedings 2021 Springer Nature

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Analysis of Client-Side Security for?Long-Term Time-Stamping Servicese hash functions are specified ambiguously, that may lead to the failure of implementations. Besides, in existing papers, the security analyses of long-term time-stamping schemes only cover the server-side renewal, and the client-side renewal is missing. In this paper, we analyse the necessity of cl

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CECMLP: New Cipher-Based Evaluating Collaborative Multi-layer Perceptron Scheme in Federated Learninh participant’s training set privacy and reliability privacy from being revealed to the public. Moreover, to further reduce the impact of unreliable participants and improve training efficiency, we design a cipher-based reliability weighted method to differentiate and intensify different contributio

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Coin-Based Multi-party Fair Exchangee any item, be it a large file. While doing so, we employ electronic payments, where if a party does not obtain the desired item at the end of the protocol, the payment of the item’s owner will be obtained instead. Third, we achieve asymptotic optimality with .(1) rounds and . messages, where . is t

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Up My Sleeve! A Hidden Secure Fallback for Cryptocurrency Walletsased on ECDSA, and adds a . signing key as a “back up key”. Thus offering a quantum secure .. This design allows the hiding of any quantum secure signature key pair, and is not exclusive to .. Finally, we briefly discuss the construction of multiple generations of proofs of ownership.

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Unlinkable and Invisible ,-Sanitizable Signaturesose our own scheme, ULISS (Unlinkable Limited Invisible Sanitizable Signature), then show that it verifies these properties. This extension of SaS can not only improve current use cases, but also introduce new ones, ., restricting the number of changes in a document within a certain timeframe.

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