Struct smc::group::EllipticCurveGroup

pub struct EllipticCurveGroup { /* fields omitted */ }

A simple wrapper of EcGroup.

It also manages the context for BigNum operations.

In order to create a new EllipticCurveGroup, you can use new.

Methods

impl EllipticCurveGroup

pub fn new(secpar: i32, nid: Nid) -> Result<Self, ErrorStack>

Creates a new EllipticCurveGroup.

Parameters

• secpar: Length of the security parameter in bits.
• nid: The numerical identifier for the curve. These curves can be discovered using using openssl ecparam -list_curves command.

Examples

use smc::group::{DLogGroup, EllipticCurveGroup};
use openssl::error::ErrorStack;
use openssl::nid::Nid;

let group = EllipticCurveGroup::new(128, Nid::SECP224R1);
println!("{:#?}", group.unwrap());

Trait Implementations

impl DLogGroup<EcPoint> for EllipticCurveGroup

fn get_generator(&self) -> &EcPoint

Caution: this method panics!

fn get_order(&mut self) -> BigNum

Get the order of the group.

Note: this returns a clone, not a reference to the object.

fn generate_random_element(&self) -> EcPoint

Generates a random element in the group.

fn generate_random_exponent(&self) -> BigNum

Generates a random exponent.

fn exponentiate(&mut self, e1: &EcPoint, e2: &BigNum) -> EcPoint

Despite its name, this method performs a multiplication on the curve. Indeed it returns an Ecpoint x = e1 * e2.

fn multiply(&mut self, e1: &EcPoint, e2: &EcPoint) -> EcPoint

Indeed it returns an Ecpoint x = e1 + e2.

fn pow(&mut self, pow: &BigNum) -> EcPoint

Despite its name, this method performs a multiplication for the group generator g. Indeed it returns an Ecpoint x = g ^ pow

fn eq(&mut self, e1: &EcPoint, e2: &EcPoint) -> bool

Compares two elements in a group.

impl Debug for EllipticCurveGroup

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

Formats the value using the given formatter.