tornado-packages/phase2-bn254
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validate beacon input data

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poma 2020-04-23 04:51:55 +03:00
parent 0226a2a267
commit ad45b1f757
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GPG Key ID: BA20CB01FE165657
1 changed files with 15 additions and 1 deletions
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16
phase2/src/bin/beacon.rs
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@ -27,6 +27,11 @@ fn main() {
let num_iterations_exp = &args[3].parse::<usize>().unwrap(); let num_iterations_exp = &args[3].parse::<usize>().unwrap();
let out_params_filename = &args[4]; let out_params_filename = &args[4];
if *num_iterations_exp < 10 || *num_iterations_exp > 63 {
println!("in_num_iterations_exp should be in [10, 63] range");
std::process::exit(exitcode::DATAERR);
}
let disallow_points_at_infinity = false; let disallow_points_at_infinity = false;
// Create an RNG based on the outcome of the random beacon // Create an RNG based on the outcome of the random beacon
@ -38,7 +43,16 @@ fn main() {
use crypto::digest::Digest; use crypto::digest::Digest;
// The hash used for the beacon // The hash used for the beacon
let mut cur_hash = hex::decode(beacon_hash).unwrap(); let hash_result = hex::decode(beacon_hash);
if hash_result.is_err() {
println!("Beacon hash should be in hexadecimal format");
std::process::exit(exitcode::DATAERR);
}
let mut cur_hash = hash_result.unwrap();
if cur_hash.len() != 32 {
println!("Beacon hash should be 32 bytes long");
std::process::exit(exitcode::DATAERR);
}
// Performs 2^n hash iterations over it // Performs 2^n hash iterations over it
let n: usize = *num_iterations_exp; let n: usize = *num_iterations_exp;