Struct ToyOT 

pub struct ToyOT {
    pub p: u64,
    pub g: u64,
}

Toy 1-of-2 Oblivious Transfer parameters.

Based on simplified Naor-Pinkas OT using DH assumptions.

WARNING

This is a simplified, non-secure educational sketch. Real OT requires careful implementation with secure group operations and hash functions.

Fields

p: u64

DH group prime p

g: u64

Generator g

Implementations

impl ToyOT

pub fn sender_setup(&self, a: u64) -> u64

Sender setup: pick random a, publish c = g^a mod p.

pub fn receiver_choose(&self, c: u64, b: u8, k: u64) -> (u64, u64)

Receiver message for choice bit b ∈ {0, 1}: picks k, sends pk_b = g^k, sets pk_{1-b} = c / g^k (implicitly). Returns (pk0, pk1) for bit b.

pub fn receiver_key(&self, c: u64, b: u8, k: u64) -> u64

Receiver derives the shared key for their chosen bit b.

Trait Implementations

impl Clone for ToyOT

fn clone(&self) -> ToyOT

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ToyOT

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

Formats the value using the given formatter.