Trait ProofOfPossessionGenerator

Source

pub trait ProofOfPossessionGenerator: Pairwhere
    Self::Public: CryptoType,{
    // Required method
    fn generate_proof_of_possession(&mut self) -> Self::Signature;
}

Expand description

Pair which is able to generate proof of possession.

This is implemented in different trait to provide default behavior.

Required Methods§

Source

fn generate_proof_of_possession(&mut self) -> Self::Signature

Generate proof of possession.

The proof of possession generator is supposed to produce a “signature” with unique hash context that should never be used in other signatures. This proves that the secret key is known to the prover. While prevent malicious actors to trick an honest party to sign an unpossessed public key resulting in a rogue key attack (See: Section 4.3 of

Ristenpart, T., & Yilek, S. (2007). The power of proofs-of-possession: Securing multiparty signatures against rogue-key attacks. In , Annual {{International Conference}} on the {{Theory}} and {{Applications}} of {{Cryptographic Techniques} (pp. 228–245). : Springer).