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

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
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.