Struct UserKeypair 

pub struct UserKeypair { /* private fields */ }

Ed25519 keypair for signing changesets and membership changes. The same seed can derive an X25519 keypair for key wrapping.

One keypair is generated per (store, device) pair: a device holds a distinct identity in each store it belongs to, so a key scoped to one store carries no authority in another, and the same device’s pubkey does not appear in more than one store’s membership chain.

Implementations

impl UserKeypair

pub fn generate() -> Self

Generate a new random Ed25519 keypair. The unmanaged primitive behind every identity-establishing act — creating, joining, or restoring a store; also lets host code (and its tests) mint an identity directly.

pub fn from_signing_key_bytes(signing_key: &[u8; 64]) -> Result<Self, KeyError>

Reconstruct a keypair from its 64-byte Ed25519 signing key (seed + public), deriving the public key from it and validating that the bytes are a real keypair. This is the single place stored signing-key bytes become a UserKeypair, so a torn or corrupt signing key fails at the persistence boundary.

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

pub fn to_keypair_bytes(&self) -> [u8; 64]

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

Sign a message, returning a 64-byte detached signature.

pub fn to_x25519_secret_key(&self) -> [u8; 32]

Derive the X25519 secret key from this Ed25519 signing key.

pub fn to_x25519_public_key(&self) -> [u8; 32]

Derive the X25519 public key from this Ed25519 public key.

Trait Implementations

impl Clone for UserKeypair

fn clone(&self) -> UserKeypair

Returns a duplicate of the value.

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

Performs copy-assignment from source.