Multisig
A concept in blockchain world that is transaction requires multiple signatures.
Ittay EyalさんはTwitterを使っています: 「What’s the best wallet if you have two keys with roughly the same probability of suffering faults? Maybe 1/2 multisig? or 2/2 multisig? The answer is just one key! https://t.co/fe1pbONJR9」 / Twitter
https://eprint.iacr.org/2021/1522.pdf