Trait Signer 

pub trait Signer<H: Hashable> {
    // Required methods
    fn sign(
        &mut self,
        kp: &Keypair,
        input: &H,
        nonce_mode: NonceMode,
    ) -> Signature;
    fn verify(&mut self, sig: &Signature, pub_key: &PubKey, input: &H) -> bool;
}

Interface for signed objects

Signer interface for signing [Hashable] inputs and verifying Signatures using Keypairs and PubKeys

Required Methods

fn sign(&mut self, kp: &Keypair, input: &H, nonce_mode: NonceMode) -> Signature

Sign input (see [Hashable]) using keypair kp and return the corresponding signature.

Parameters

• kp - The keypair to use for signing
• input - The message to sign (must implement [Hashable])
• nonce_mode - Controls nonce derivation method:
  • NonceMode::Legacy: For user commands (payments, delegations)
  • NonceMode::Chunked: For zkApp transactions (o1js compatible)

Returns

A Signature over the input message.

fn verify(&mut self, sig: &Signature, pub_key: &PubKey, input: &H) -> bool

Verify that the signature sig on input (see [Hashable]) is signed with the secret key corresponding to pub_key. Return true if the signature is valid and false otherwise.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl<H: 'static + Hashable> Signer<H> for Schnorr<H>