This project is the crypto library for XuperChain. Ring signature, multi signature, schnorr signature, secret share, hierarchical deterministic encryption, threshold signature scheme(tss schnorr) , bls signature have been supported.目前开源部分已经支持了Xuper统一超级签名算法、Schnorr签名，环签名、多重签名，tss(schnorr)门限签名，BLS签名等多种签名算法。也支持了秘密分享、分层确定性加解密等多种密码学能力。

Go implementation of Schnorr signatures

A custom Schnorr signature scheme using Rescue-Prime hash internally for fast verification in zk-STARK statements.

Go framework for zero-knowledge login and sender-constrained access tokens. Implements interactive Schnorr ZK auth, short-lived JWTs bound to client DPoP keys (cnf.jkt), and ready-to-use middleware for DPoP + JWT verification. Includes reference auth server and demo API.

This project demonstrates a "Hybrid" authentication architecture. It uses the WebAuthn PRF (Pseudo-Random Function) extension as a Hardware Seed Generator (Touch ID, Windows Hello, YubiKey), then use pure Schnorr signature logic to authenticate users (via @noble/secp256k1).

Educational implementation of Schnorr signatures over finite fields in C

Implementations of various Elliptic Curve Cryptography primitives such as ECDSA and Adaptor ECDSA over secp256k1

Embryonic Nostr social client with on-chain Ethereum identity. Browse Nostr feeds, see ETH-verified badges on linked profiles, and link your Ethereum address to your Nostr key — verified on-chain via BIP-340 Schnorr signatures.