Efficient threshold distributed elliptic curve key generation and signature method and system

摘要

Threshold distributed elliptic curve key generation and signature system and method are disclosed where nodes can generate their own key pairs without the participation of a trust center, each node can process its own key pair according to a secret sharing protocol, complete conversion of the (n, n) threshold to the (t, n) threshold, after determining t signature node, generates a (t, t) threshold private key according to a threshold logic, complete mapping of ptki to ptki′, and according to a signature logic, use ptki′ to complete the communication and calculation in the signature protocol, store the relevant calculation results, and complete an overall signature.