pallas-crypto

Pallas Crypto

Cryptographic primitives required to participate in the Cardano protocol: Blake2b hashing, Ed25519 signing (regular and BIP32-extended), VRF, KES forward-secure signatures, and nonce evolution.

Usage

use pallas_crypto::hash::Hasher;

let mut h = Hasher::<256>::new();
h.input(b"hello");
let digest = h.finalize();
println!("blake2b-256 = {}", digest);

Overview

• hash — Hash<N> and Hasher<N> over Blake2b. The const generic is in bits, so Hasher::<224> and Hasher::<256> cover the common Cardano digest sizes.
• key::ed25519 — regular and extended Ed25519 key pairs, signing and verification.
• kes — KES (Key Evolving Signature) primitives used by block producers.
• nonce — epoch / chain-nonce evolution helpers.
• memsec — secure-memory utilities used to wipe key material.

Status

• Blake2b 256
• Blake2b 224
• Ed25519 asymmetric key pair and EdDSA
• Ed25519 Extended asymmetric key pair
• BIP32-Ed25519 key derivation
• BIP39 mnemonics
• VRF
• KES
• SECP256k1
• Nonce calculations

Further reading

• src/kes/README.md — KES design notes and interoperability considerations.