Struct SigningNonces 

pub struct SigningNonces<C: Ciphersuite> { /* private fields */ }

Comprised of hiding and binding nonces.

Note that SigningNonces must be used only once for a signing operation; re-using nonces will result in leakage of a signer’s long-lived signing key.

Implementations

impl<C: Ciphersuite> SigningNonces<C>

Auto-generated by derive_getters::Getters.

pub fn hiding(&self) -> &Nonce<C>

The hiding Nonce.

pub fn binding(&self) -> &Nonce<C>

The binding Nonce.

pub fn commitments(&self) -> &SigningCommitments<C>

The commitments to the nonces. This is precomputed to improve sign() performance, since it needs to check if the commitments to the participant’s nonces are included in the commitments sent by the Coordinator, and this prevents having to recompute them.

impl<C> SigningNonces<C>

where C: Ciphersuite,

pub fn new<R>(secret: &SigningShare<C>, rng: &mut R) -> Self

where R: CryptoRng + RngCore,

Generates a new signing nonce.

Each participant generates signing nonces before performing a signing operation.

pub fn from_nonces(hiding: Nonce<C>, binding: Nonce<C>) -> Self

Generates a new SigningNonces from a pair of Nonce.

Security

SigningNonces MUST NOT be repeated in different FROST signings. Thus, if you’re using this method (because e.g. you’re writing it to disk between rounds), be careful so that does not happen.

impl<C> SigningNonces<C>

where C: Ciphersuite,

pub fn serialize(&self) -> Result<Vec<u8>, Error<C>>

Available on crate feature serialization only.

Serialize the struct into a Vec.

pub fn deserialize(bytes: &[u8]) -> Result<Self, Error<C>>

Available on crate feature serialization only.

Deserialize the struct from a slice of bytes.

Trait Implementations

impl<C: Clone + Ciphersuite> Clone for SigningNonces<C>

fn clone(&self) -> SigningNonces<C>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<C> Debug for SigningNonces<C>

where C: Ciphersuite,

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

Formats the value using the given formatter.

impl<'de, C> Deserialize<'de> for SigningNonces<C>

where C: Ciphersuite,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<C: Ciphersuite> Drop for SigningNonces<C>

fn drop(&mut self)

Executes the destructor for this type.

impl<C> From<&SigningNonces<C>> for SigningCommitments<C>

where C: Ciphersuite,

fn from(nonces: &SigningNonces<C>) -> Self

Converts to this type from the input type.

impl<C: PartialEq + Ciphersuite> PartialEq for SigningNonces<C>

fn eq(&self, other: &SigningNonces<C>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<C> Serialize for SigningNonces<C>

where C: Ciphersuite,

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<C: Ciphersuite> Zeroize for SigningNonces<C>

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<C: Eq + Ciphersuite> Eq for SigningNonces<C>

impl<C: Ciphersuite> StructuralPartialEq for SigningNonces<C>