DISTRIBUTED MESSAGE AUTHENTICATION CODES FOR MULTIPLE PARTIES

    公开(公告)号:US20250097028A1

    公开(公告)日:2025-03-20

    申请号:US18759321

    申请日:2024-06-28

    Abstract: A computing system cryptographically generates an intermediate message authentication code as a function of the message and a cryptographic key assigned to a first party. The computing system also generates a first instance of an aggregate message authentication code corresponding to the message by combining the intermediate message authentication code with one or more other intermediate message authentication codes of one or more second parties. Each code of the one or more other intermediate message authentication codes is cryptographically generated as a function of the message and individual cryptographic key assigned to each of the one or more second parties.

    EVOLVING THRESHOLD FUNCTION SECRET SHARING

    公开(公告)号:US20240421983A1

    公开(公告)日:2024-12-19

    申请号:US18742990

    申请日:2024-06-13

    Abstract: Evolving function secret sharing is performed on a given function by multiple share parties, A dealer selects a random vector for each share party corresponding to an arrival order. The dealer generates an array of function shares for each share party of the set, each array including a function share based on the random vector corresponding to the share party and one or more function shares cryptographically generated based on the random vector corresponding to each previously-arrived share party. The dealer distributes an array of the function shares to each share party, wherein a first function share result resulting from a computation of a first function share on given input data and at least a second function share result resulting from a computation of a second function share on the given input data are combinable to yield a result of the given function executed on the given input data.

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