You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

51 lines
1.7 KiB

#![allow(non_snake_case)]
extern crate flate2;
extern crate libspartan;
extern crate merlin;
extern crate rand;
use flate2::{write::ZlibEncoder, Compression};
use libspartan::r1csinstance::R1CSInstance;
use libspartan::spartan::{NIZKGens, NIZK};
use libspartan::timer::Timer;
use merlin::Transcript;
pub fn main() {
// the list of number of variables (and constraints) in an R1CS instance
let inst_sizes = vec![10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20];
println!("Profiler:: NIZK");
for &s in inst_sizes.iter() {
let num_vars = (2 as usize).pow(s as u32);
let num_cons = num_vars;
let num_inputs = 10;
let (inst, vars, input) = R1CSInstance::produce_synthetic_r1cs(num_cons, num_vars, num_inputs);
Timer::print(&format!("number_of_constraints {}", num_cons));
// produce public generators
let gens = NIZKGens::new(num_cons, num_vars);
// produce a proof of satisfiability
let timer_prove = Timer::new("NIZK::prove");
let mut prover_transcript = Transcript::new(b"example");
let proof = NIZK::prove(&inst, vars, &input, &gens, &mut prover_transcript);
timer_prove.stop();
let mut encoder = ZlibEncoder::new(Vec::new(), Compression::default());
bincode::serialize_into(&mut encoder, &proof).unwrap();
let proof_encoded = encoder.finish().unwrap();
let msg_proof_len = format!("NIZK::proof_compressed_len {:?}", proof_encoded.len());
Timer::print(&msg_proof_len);
// verify the proof of satisfiability
let timer_verify = Timer::new("NIZK::verify");
let mut verifier_transcript = Transcript::new(b"example");
assert!(proof
.verify(&inst, &input, &mut verifier_transcript, &gens)
.is_ok());
timer_verify.stop();
println!();
}
}