Layer 2, Dlc, Bitcoin.
both odd and even. (3) Oracle’s Leakage or Reuse of Nonce k If the Oracle leaks the nonce k, then at the settlement phase, regardless of whether the Oracle broadcasts s or s′, an attacker can calculate the Oracle’s private key z as follows: $z:=(k-s)/hash(OddNumber, R)$ $z:=(k-s’)/hash(EvenNumber,