#elliptic-curve #commitment #pedersen #value #com #tiny

tiny_ped_com

A small Rust library for Pedersen commitments over elliptic curves

1 unstable release

Uses old Rust 2015

0.1.0 Apr 16, 2018

#11 in #pedersen

MIT license

9KB
97 lines

Tiny Ped Com

A small Rust library for Pedersen commitments over elliptic curves.

Pedersen commitments are cryptographic construction for allowing a party, Alice, to committo a value to Bob, without revealing the value to Bob until later. At which point alice opens the commitment by telling Bob the value she committed to along with a proof that that her value now is the same as her value before.

This implementation uses curve25519-dalek for elliptic curve operations.

Example

let mut rng = OsRng::new().unwrap();
let val = tiny_ped_com::CommitmentValue::from_u64(3);

let (verifier_pub_key, mut verifier) = tiny_ped_com::CommitVerifier::init(&mut rng);
let (commitment, commitment_opening) = tiny_ped_com::Committer::commit(&mut rng, &val, &verifier_pub_key);

verifier.receive_commitment(commitment);

let did_verify = verifier.verify(&val, &commitment_opening);
assert_eq!(did_verify, true);

Warnings

Use at your own risk. This cryptography code is un-audited and extremely likely to have security bugs. It is not recommended for use of any kind.

Dependencies

~1.6–2.4MB
~48K SLoC