Sigma Protocols Implementation in C A clean, simple C implementation of Sigma protocols with Fiat-Shamir transformation for non-interactive zero-knowledge proofs. Features Schnorr Protocol: Prove knowledge of discrete logarithm Chaum-Pedersen Protocol: Prove discrete logarithm equality (DLEQ) Non-interactive proofs: Using Fiat-Shamir transformation with SHAKE128 Minimal API: Just 6 functions for complete functionality No abstractions: Direct use of byte arrays, no wrapper types Secure: Built on ...