Struct TwistedEd25519PrivateKey 

pub struct TwistedEd25519PrivateKey { /* private fields */ }

Available on crate feature twisted_ed25519 only.

A Twisted Ed25519 private key (Ristretto255 scalar).

The private key is zeroized when dropped to prevent sensitive data from remaining in memory, and Debug is redacted to avoid accidental leaks.

Implementations

impl TwistedEd25519PrivateKey

pub fn generate() -> Self

Generates a new random private key from OsRng.

pub fn from_bytes(bytes: &[u8]) -> MovementResult<Self>

Creates a private key from raw bytes (32 bytes, little-endian, reduced mod the Ristretto255 group order).

Errors

Returns MovementError::InvalidPrivateKey if the byte slice length is not exactly 32 bytes.

pub fn from_hex(hex_str: &str) -> MovementResult<Self>

Creates a private key from a hex string (with or without 0x prefix).

Errors

Returns MovementError::Hex if the hex string is invalid, or MovementError::InvalidPrivateKey if the decoded length is not 32 bytes.

pub fn from_scalar(scalar: Scalar) -> Self

Wraps an existing Ristretto255 scalar as a private key.

pub fn public_key(&self) -> TwistedEd25519PublicKey

Returns the corresponding encryption (public) key, pk = s⁻¹·H.

pub fn as_scalar(&self) -> &Scalar

Borrows the underlying scalar for σ-protocol provers.

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

Returns the private key as 32 little-endian bytes.

Warning: handle the returned bytes carefully to avoid leaking sensitive key material.

pub fn to_hex(&self) -> String

Returns the private key as a hex string (lowercase, 0x-prefixed).

Warning: handle the returned string carefully — it contains private key material in plaintext.

Trait Implementations

impl Clone for TwistedEd25519PrivateKey

fn clone(&self) -> TwistedEd25519PrivateKey

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TwistedEd25519PrivateKey

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Zeroize for TwistedEd25519PrivateKey

fn zeroize(&mut self)

Zero out this object from memory using Rust intrinsics which ensure the zeroization operation is not “optimized away” by the compiler.