[−][src]Crate schnorr_fun
SchnorrFun!
Generate and verify Schnorr signatures on secp256k1. Uses secp256kfun.
Schnorr signatures were introduced (and patented until 2008) by their namesake in Efficient Signature Generation by Smart Cards. This implementation is based on the BIP-340 specification, but is flexible enough to be used as a general purpose Schnorr signature scheme.
Use
[dependencies]
schnorr_fun = "0.2"
sha2 = "0.9"
Should use?
This library and secp256kfun are experimental. BIP-340 is still in review so APIs are subject to change.
Synopsis
use schnorr_fun::{ fun::{marker::*, Scalar, nonce}, Schnorr, MessageKind, }; use sha2::Sha256; use rand::rngs::ThreadRng; // Use synthetic nonces let nonce_gen = nonce::Synthetic::<Sha256, nonce::GlobalRng<ThreadRng>>::default(); // Create a BIP-341 compatible instance let schnorr = Schnorr::<Sha256, _>::new(nonce_gen.clone(),MessageKind::Prehashed); // Or create an instance for your own application let schnorr = Schnorr::<Sha256,_>::new(nonce_gen, MessageKind::Plain { tag: "my-app" }); // Generate your public/private key-pair let keypair = schnorr.new_keypair(Scalar::random(&mut rand::thread_rng())); let message = b"Chancellor on brink of second bailout for banks" .as_ref() .mark::<Public>(); // Sign the message with our keypair let signature = schnorr.sign(&keypair, message); // Get the verifier's key let verification_key = keypair.verification_key(); // Check it's valid 🍿 assert!(schnorr.verify(&verification_key, message, &signature));
Features
- BIP-340 compliant signing and verification
- Adaptor signatures
Re-exports
pub use secp256kfun as fun; |
Modules
adaptor | Algorithms for Schnorr "adaptor signature" signature encryption. |
nonce | Nonce Genration utilities |
Structs
KeyPair | A secret and public key-pair for generating Schnorr signatures. |
Schnorr | An instance of a BIP-340 style Schnorr signature scheme. |
Signature | A Schnorr signature. |
Enums
MessageKind | Describes the kind of messages that will be signed with a |