Kudelski Security is happy to publish the solution found by the team Ledger Donjon to the first challenge of Kudelski Security’s 2018 crypto challenge! Ledger
Tag: crypto currency
How to defeat Ed25519 and EdDSA using faults
We’ve succesfully conducted a fault attack against EdDSA that allowed us to recover enough secret key material to produce fake signatures for any message in a way a verifier cannot detect.