Struct SigningKey 

pub struct SigningKey { /* private fields */ }

Wrapper around Ed25519 keypair for checkpoint signing.

Implementations

impl SigningKey

pub fn generate_and_save(path: &Path) -> Result<Self>

Generate a new random keypair and save the 32-byte seed to disk.

pub fn load(path: &Path) -> Result<Self>

Load an existing keypair from the 32-byte seed on disk.

pub fn load_or_generate(path: &Path) -> Result<Self>

Load from disk if exists, otherwise generate and save.

pub fn sign(&self, msg: &[u8]) -> [u8; 64]

Sign a message. Returns the 64-byte signature.

pub fn verify(&self, msg: &[u8], sig_bytes: &[u8; 64]) -> bool

Verify a signature against this key’s public key.

pub fn public_key_bytes(&self) -> [u8; 32]

Public key as 32-byte array.

pub fn public_key_hex(&self) -> String

Public key as hex string (64 chars).

pub fn sign_checkpoint(&self, checkpoint_body: &[u8]) -> String

Build the checkpoint extension line: sig/ed25519:<pubkey>:<sig>\n

Trait Implementations

impl Clone for SigningKey

fn clone(&self) -> SigningKey

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.