import type { Chunk } from "./xet-chunker.js";
/**
 * file_hash = hmac(xorb_hash(chunks), zero_key)
 *
 * Matches Rust's `merklehash::file_hash` which calls
 * `file_hash_with_salt(chunks, &[0; 32])`.
 */
export declare function fileHash(chunks: Chunk[]): Uint8Array;
/**
 * HMAC: blake3_keyed_hash(key_bytes, hash_bytes)
 *
 * Both inputs are 32-byte Uint8Arrays.
 * Matches Rust's `DataHash::hmac`.
 *
 * Uses a fresh hasher per call since the key varies.
 */
export declare function hmac(hash: Uint8Array, key: Uint8Array): Uint8Array;
/**
 * Verification hash for a range of chunk hashes.
 * Concatenates all 32-byte hashes and applies blake3_keyed_hash
 * with VERIFICATION_KEY.
 *
 * Matches Rust's `chunk_verification::range_hash_from_chunks`.
 */
export declare function verificationHash(chunkHashes: Uint8Array[]): Uint8Array;
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