import { Buffer } from 'buffer';
/**
 * Compute the BIP-341 TapLeaf hash for a tapscript leaf:
 * `tagged_hash("TapLeaf", leaf_version || compact_size(script) || script)`.
 */
export declare function computeTapLeafHash(leafVersion: number, script: Uint8Array): Buffer;
export interface TaprootScriptPathBinding {
    /** Tapscript leaf version, e.g. `0xc0`. */
    leafVersion: number;
    /** The tapscript leaf being spent. */
    script: Uint8Array;
    /** BIP-341 control block: version/parity byte, internal key, merkle path. */
    controlBlock: Uint8Array;
}
/**
 * Recompute the P2TR scriptPubKey that a `(leafVersion, script, controlBlock)`
 * triple can spend, by walking the control block's merkle path to the taptree
 * root and tweaking the control block's internal key with it (BIP-341
 * "Script validation rules").
 *
 * Comparing the result against a real previous output is what proves the triple
 * belongs to that output rather than to some other taptree.
 *
 * @throws If the control block is malformed, the leaf version disagrees with
 *   the control block, the tweak is off-curve, or the recovered output key's
 *   parity contradicts the control block.
 */
export declare function computeTaprootScriptPubKey(binding: TaprootScriptPathBinding): Buffer;
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