ECDSA Signatures Can Be Cracked With One Good Signature and One Bad One
Published in
4 min readAug 12, 2022
I have been reading an excellent paper [1] and it outlines the usage of the fault attack on ECDSA signatures. With this we just need one good signature and a bad one, and where a signer has signed the same message, with the same nonce, and with the same private key. It is another worrying attack on ECDSA [2]:
