Struct UserKeypair 

pub struct UserKeypair { /* private fields */ }

Ed25519 keypair used for Store identities and derived device signers. The same seed can derive an X25519 keypair for key wrapping.

A Store identity authorizes membership and device registration. Each registration derives a device signing key from that identity and its Store root and registration origin; the identity and device signer are distinct protocol roles.

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 derive_signing_key(&self, domain: &[u8], context: &[u8]) -> Self

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.

impl DeviceSigningAuthority for UserKeypair

fn public_key_hex(&self) -> String

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

impl IdentityKeyAuthority for UserKeypair

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

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

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