67 lines
2.0 KiB
Rust
67 lines
2.0 KiB
Rust
extern crate phase2;
|
|
extern crate pairing;
|
|
extern crate blake2_rfc;
|
|
|
|
use std::fs::File;
|
|
use std::io::BufReader;
|
|
use blake2_rfc::blake2b::Blake2b;
|
|
|
|
fn main() {
|
|
let params = File::open("params").unwrap();
|
|
let mut params = BufReader::with_capacity(1024 * 1024, params);
|
|
|
|
let new_params = File::open("new_params").unwrap();
|
|
let mut new_params = BufReader::with_capacity(1024 * 1024, new_params);
|
|
|
|
let sapling_spend = phase2::MPCParameters::read(&mut params, false)
|
|
.expect("couldn't deserialize Sapling Spend params");
|
|
|
|
let sapling_output = phase2::MPCParameters::read(&mut params, false)
|
|
.expect("couldn't deserialize Sapling Output params");
|
|
|
|
let sprout_joinsplit = phase2::MPCParameters::read(&mut params, false)
|
|
.expect("couldn't deserialize Sprout JoinSplit params");
|
|
|
|
let new_sapling_spend = phase2::MPCParameters::read(&mut new_params, true)
|
|
.expect("couldn't deserialize Sapling Spend new_params");
|
|
|
|
let new_sapling_output = phase2::MPCParameters::read(&mut new_params, true)
|
|
.expect("couldn't deserialize Sapling Output new_params");
|
|
|
|
let new_sprout_joinsplit = phase2::MPCParameters::read(&mut new_params, true)
|
|
.expect("couldn't deserialize Sprout JoinSplit new_params");
|
|
|
|
let h1 = match phase2::verify_contribution(&sapling_spend, &new_sapling_spend) {
|
|
Ok(hash) => hash,
|
|
Err(_) => panic!("invalid transformation!")
|
|
};
|
|
|
|
let h2 = match phase2::verify_contribution(&sapling_output, &new_sapling_output) {
|
|
Ok(hash) => hash,
|
|
Err(_) => panic!("invalid transformation!")
|
|
};
|
|
|
|
let h3 = match phase2::verify_contribution(&sprout_joinsplit, &new_sprout_joinsplit) {
|
|
Ok(hash) => hash,
|
|
Err(_) => panic!("invalid transformation!")
|
|
};
|
|
|
|
let mut h = Blake2b::new(64);
|
|
h.update(&h1);
|
|
h.update(&h2);
|
|
h.update(&h3);
|
|
let h = h.finalize();
|
|
|
|
println!("{}", into_hex(h.as_ref()));
|
|
}
|
|
|
|
fn into_hex(h: &[u8]) -> String {
|
|
let mut f = String::new();
|
|
|
|
for byte in &h[..] {
|
|
f += &format!("{:02x}", byte);
|
|
}
|
|
|
|
f
|
|
}
|