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To secure many-to-one message transmission, the problem of how to perform SC-ECDSA (SignCryption based on Elliptic Curve Digital Signature Algorithm) in insecure distributed systems is investigated. Using EC-DKG (Elliptic Curve based Distributed Key Generation), the distributed signcryption with a combiner and the distributed signcryption without the trusted center are proposed. The proposal can tolerate...
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