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102 lines
2.8 KiB
102 lines
2.8 KiB
extern crate sapling_crypto; |
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extern crate bellman; |
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extern crate rand; |
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extern crate pairing; |
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use std::time::{Duration, Instant}; |
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use sapling_crypto::jubjub::{ |
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JubjubBls12, |
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edwards, |
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fs, |
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}; |
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use sapling_crypto::circuit::sapling::{ |
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Spend |
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}; |
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use sapling_crypto::primitives::{ |
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Diversifier, |
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ProofGenerationKey, |
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ValueCommitment |
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}; |
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use bellman::groth16::*; |
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use rand::{XorShiftRng, SeedableRng, Rng}; |
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use pairing::bls12_381::{Bls12, Fr}; |
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const TREE_DEPTH: usize = 32; |
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fn main() { |
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let jubjub_params = &JubjubBls12::new(); |
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let rng = &mut XorShiftRng::from_seed([0x3dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]); |
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println!("Creating sample parameters..."); |
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let groth_params = generate_random_parameters::<Bls12, _, _>( |
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Spend { |
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params: jubjub_params, |
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value_commitment: None, |
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proof_generation_key: None, |
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payment_address: None, |
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commitment_randomness: None, |
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ar: None, |
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auth_path: vec![None; TREE_DEPTH], |
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anchor: None |
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}, |
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rng |
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).unwrap(); |
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const SAMPLES: u32 = 50; |
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let mut total_time = Duration::new(0, 0); |
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for _ in 0..SAMPLES { |
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let value_commitment = ValueCommitment { |
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value: 1, |
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randomness: rng.gen() |
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}; |
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let nsk: fs::Fs = rng.gen(); |
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let ak = edwards::Point::rand(rng, jubjub_params).mul_by_cofactor(jubjub_params); |
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let proof_generation_key = ProofGenerationKey { |
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ak: ak.clone(), |
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nsk: nsk.clone() |
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}; |
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let viewing_key = proof_generation_key.into_viewing_key(jubjub_params); |
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let payment_address; |
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loop { |
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let diversifier = Diversifier(rng.gen()); |
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if let Some(p) = viewing_key.into_payment_address( |
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diversifier, |
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jubjub_params |
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) |
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{ |
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payment_address = p; |
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break; |
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} |
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} |
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let commitment_randomness: fs::Fs = rng.gen(); |
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let auth_path = vec![Some((rng.gen(), rng.gen())); TREE_DEPTH]; |
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let ar: fs::Fs = rng.gen(); |
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let anchor: Fr = rng.gen(); |
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let start = Instant::now(); |
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let _ = create_random_proof(Spend { |
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params: jubjub_params, |
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value_commitment: Some(value_commitment), |
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proof_generation_key: Some(proof_generation_key), |
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payment_address: Some(payment_address), |
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commitment_randomness: Some(commitment_randomness), |
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ar: Some(ar), |
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auth_path: auth_path, |
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anchor: Some(anchor) |
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}, &groth_params, rng).unwrap(); |
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total_time += start.elapsed(); |
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} |
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let avg = total_time / SAMPLES; |
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let avg = avg.subsec_nanos() as f64 / 1_000_000_000f64 |
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+ (avg.as_secs() as f64); |
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println!("Average proving time (in seconds): {}", avg); |
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}
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