Struct ExpandedSecretKey 

pub struct ExpandedSecretKey {
    pub(crate) seed: SecretKey,
    pub(crate) scalar: EdwardsScalar,
    pub(crate) public_key: VerifyingKey,
    pub(crate) hash_prefix: EdwardsScalarBytes,
}

Fields

seed: SecretKey

scalar: EdwardsScalar

public_key: VerifyingKey

hash_prefix: EdwardsScalarBytes

Implementations

impl ExpandedSecretKey

pub fn from_seed(seed: &SecretKey) -> Self

pub fn sign_raw(&self, m: &[u8]) -> Result<InnerSignature, SigningError>

Signs a message.

This is the “Ed448” mode of RFC 8032 (no pre-hashing), also known as “PureEdDSA on Curve448”. No context is provided; this is equivalent to sign_ctx() with an empty (zero-length) context.

pub fn sign_ctx( &self, ctx: &[u8], m: &[u8], ) -> Result<InnerSignature, SigningError>

Signs a message (with context).

This is the “Ed448” mode of RFC 8032 (no pre-hashing), also known as “PureEdDSA on Curve448”. A context string is also provided; it MUST have length at most 255 bytes.

pub fn sign_prehashed( &self, ctx: &[u8], m: &[u8], ) -> Result<InnerSignature, SigningError>

Signs a pre-hashed message.

This is the “Ed448ph” mode of RFC 8032 (message is pre-hashed), also known as “HashEdDSA on Curve448”. The hashed message hm is provided (presumably, that hash value was obtained with SHAKE256 and an output of 64 bytes; the caller does the hashing itself). A context string is also provided; it MUST have length at most 255 bytes.

fn sign_inner( &self, phflag: u8, ctx: &[u8], m: &[u8], ) -> Result<InnerSignature, SigningError>

Trait Implementations

impl Clone for ExpandedSecretKey

fn clone(&self) -> ExpandedSecretKey

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Drop for ExpandedSecretKey

fn drop(&mut self)

Executes the destructor for this type.

impl From<&Array<u8, <Ed448 as CurveWithScalar>::ReprSize>> for ExpandedSecretKey

fn from(secret_key: &SecretKey) -> Self

Converts to this type from the input type.

impl Zeroize for ExpandedSecretKey

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.

impl ZeroizeOnDrop for ExpandedSecretKey