Struct cryptoballot::Trustee

pub struct Trustee {
    pub public_key: PublicKey,
    pub index: u8,
    pub num_trustees: usize,
    pub threshold: u8,
}

A group of trustees collectively create the encryption-key, decrypt votes, and run the mixnet.

Most elections will have a handful of trustees (between 3 and 30), with a quorum being set to about 2/3 the total number of trustees. Any quorum of trustees may decrypt the votes.

Fields

public_key: PublicKey

index: u8

num_trustees: usize

threshold: u8

Implementations

impl Trustee

pub fn from_election_tx(
    election_tx: &ElectionTransaction,
    pkey: PublicKey
) -> Self

pub fn new(index: u8, num_trustees: usize, threshold: u8) -> (Self, SecretKey)

Create a new trustee

pub fn keygen_commitment(
    &self,
    sk: &SecretKey,
    election_id: Identifier
) -> KeygenCommitment

pub fn generate_shares<R: Rng + CryptoRng>(
    &self,
    rng: &mut R,
    sk: &SecretKey,
    x25519_public_keys: &[(u8, PublicKey)],
    election_id: Identifier,
    commitments: &[(u8, KeygenCommitment)]
) -> IndexMap<u8, EncryptedShare>

pub fn x25519_public_key(
    &self,
    sk: &SecretKey,
    election_id: Identifier
) -> PublicKey

pub fn generate_public_key(
    &self,
    sk: &SecretKey,
    x25519_public_keys: &[(u8, PublicKey)],
    commitments: &[(u8, KeygenCommitment)],
    shares: &[(u8, EncryptedShare)],
    election_id: Identifier
) -> Result<(ElGamalPublicKey, PubkeyProof), ValidationError>

pub fn partial_decrypt<R: Rng + CryptoRng>(
    &self,
    rng: &mut R,
    sk: &SecretKey,
    x25519_public_keys: &[(u8, PublicKey)],
    commitments: &[(u8, KeygenCommitment)],
    shares: &[(u8, EncryptedShare)],
    encrypted_vote: &Ciphertext,
    election_id: Identifier
) -> Result<DecryptShare, ValidationError>

Trait Implementations

impl Clone for Trustee

fn clone(&self) -> Trustee

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Default for Trustee

fn default() -> Trustee

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Trustee

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
    __D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.

impl Serialize for Trustee

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

Serialize this value into the given Serde serializer.