/**
 * SLIP-0010 hardened-only hierarchical key derivation.
 *
 * Implements the HMAC-SHA512 derivation chain from
 * {@link https://github.com/satoshilabs/slips/blob/master/slip-0010.md | SLIP-0010}
 * for curves without public-key derivation: every path segment must be
 * hardened, and the derived 32-byte node secret is used directly as key
 * material (an ed25519 private key, or an ML-DSA-65 FIPS 204 seed ξ).
 *
 * The ML-DSA-65 variant uses the `"ML-DSA-65 seed"` master salt from
 * {@link https://github.com/satoshilabs/slips/pull/1968 | satoshilabs/slips#1968},
 * the same construction adopted by Quantus (QIP-0002) and proven secure in the
 * Lattice HD Wallets paper (https://eprint.iacr.org/2026/380).
 */
/** SLIP-0010 master-node HMAC key for the ed25519 curve. */
export declare const ED25519_CURVE_SALT = "ed25519 seed";
/** Master-node HMAC key for ML-DSA-65, per satoshilabs/slips#1968. */
export declare const ML_DSA_65_CURVE_SALT = "ML-DSA-65 seed";
/** A SLIP-0010 node: 32-byte secret (I_L) and 32-byte chain code (I_R). */
export interface Slip10Node {
    key: Uint8Array;
    chainCode: Uint8Array;
}
/**
 * Derive a SLIP-0010 node from a BIP-39 seed along a hardened BIP-32 path.
 *
 * @param salt - Master-node HMAC key selecting the scheme
 * ({@link ED25519_CURVE_SALT} or {@link ML_DSA_65_CURVE_SALT}).
 * @param seed - BIP-39 seed (typically 64 bytes from `mnemonicToSeedSync`).
 * @param path - Path like `"m/44'/397'/0'"`. Every segment must be hardened
 * (`'` suffix); `"m"` alone derives the master node.
 * @returns The derived node; `key` is the 32-byte secret (ed25519 private key
 * or ML-DSA-65 seed ξ).
 */
export declare function slip10DerivePath(salt: string, seed: Uint8Array, path: string): Slip10Node;
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