Crate hush_core 

hush-core

Cryptographic primitives for the clawdstrike attestation system.

This crate provides:

• Ed25519 signing and verification
• SHA-256 and Keccak-256 hashing
• Merkle tree construction and proof verification
• Canonical JSON (RFC 8785)
• Receipt types and signing

Quick Start

use hush_core::{sha256, keccak256, Keypair};

// Hash some data
let hash = sha256(b"hello world");
assert_eq!(hash.as_bytes().len(), 32);

// Keccak-256 (Ethereum-compatible)
let eth_hash = keccak256(b"hello world");
assert_eq!(eth_hash.as_bytes().len(), 32);

// Sign and verify
let keypair = Keypair::generate();
let message = b"important message";
let signature = keypair.sign(message);
assert!(keypair.public_key().verify(message, &signature));

Merkle Trees

use hush_core::MerkleTree;

let leaves = vec![b"leaf1".to_vec(), b"leaf2".to_vec(), b"leaf3".to_vec()];
let tree = MerkleTree::from_leaves(&leaves).unwrap();

// Generate and verify inclusion proof
let proof = tree.inclusion_proof(1).unwrap();
assert!(proof.verify(&leaves[1], &tree.root()));

Re-exports

pub use canonical::canonicalize as canonicalize_json;

pub use duration::parse_human_duration;

pub use error::Error;

pub use error::Result;

pub use hashing::keccak256;

pub use hashing::keccak256_hex;

pub use hashing::sha256;

pub use hashing::sha256_hex;

pub use hashing::Hash;

pub use merkle::MerkleProof;

pub use merkle::MerkleTree;

pub use receipt::Provenance;

pub use receipt::Receipt;

pub use receipt::SignedReceipt;

pub use receipt::Verdict;

pub use signing::Keypair;

pub use signing::PublicKey;

pub use signing::Signature;

pub use signing::Signer;

pub use tpm::TpmSealedBlob;

pub use tpm::TpmSealedSeedSigner;

Modules

canonical

Canonical JSON for hashing/signatures (RFC 8785 JCS)

duration

error

Error types for hush-core operations

hashing

Cryptographic hashing (SHA-256 and Keccak-256)

merkle

RFC 6962-compatible Merkle tree (Certificate Transparency style).

prelude

Commonly used types

receipt

Receipt types and signing for attestation

signing

Ed25519 signing and verification

tpm

TPM2 sealing helpers (best-effort).