Struct GarbledGate 

pub struct GarbledGate {
    pub table: [[u64; 2]; 2],
    pub labels_a: [u64; 2],
    pub labels_b: [u64; 2],
    pub labels_out: [u64; 2],
}

A simple garbled AND/OR gate simulator.

Labels for 0 and 1 on each wire are represented as u64 tokens. The garbled table encrypts the output label for each input pair.

WARNING

Educational sketch only. Real garbling uses AES-based encryption.

Fields

table: [[u64; 2]; 2]

Garbled table: indexed [a_bit][b_bit] → output label

labels_a: [u64; 2]

Labels for wire A: [label_0, label_1]

labels_b: [u64; 2]

Labels for wire B: [label_0, label_1]

labels_out: [u64; 2]

Labels for output wire: [label_0, label_1]

Implementations

impl GarbledGate

pub fn garble_and( labels_a: [u64; 2], labels_b: [u64; 2], labels_out: [u64; 2], ) -> Self

Build a garbled AND gate. labels_a, labels_b, labels_out: [label_for_0, label_for_1] on each wire.

pub fn garble_or( labels_a: [u64; 2], labels_b: [u64; 2], labels_out: [u64; 2], ) -> Self

Build a garbled OR gate.

pub fn evaluate(&self, label_a: u64, label_b: u64) -> Option<u64>

Evaluate the garbled gate: given input labels, recover the output label.

pub fn is_output_one(&self, output_label: u64) -> bool

Check if the recovered output label corresponds to output value 1.

Trait Implementations

impl Clone for GarbledGate

fn clone(&self) -> GarbledGate

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GarbledGate

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

Formats the value using the given formatter.