import { Transaction, Script } from '../btc';
import { Point } from '../crypto/secp256k1';
import { PrivKey, AdaptorSignature } from '../crypto/types';
export declare function sighashForAdaptorSig(transaction: Transaction, inputIndex: number, tapleafHash: Buffer): Buffer;
/**
 * Creates and applies an adaptor signature to a CET
 * @param cet - The CET transaction to sign
 * @param inputIndex - The index of the input to sign
 * @param privKey - The private key to sign with
 * @param oracleSigPoint - The oracle's signature point for the event outcome
 * @param tapleafHash - The hash of the tapleaf
 * @returns The adaptor signature
 */
export declare function createCetAdaptorSig(cet: Transaction, inputIndex: number, privKey: PrivKey, oracleSigPoint: Point, tapleafHash: Buffer): Promise<AdaptorSignature>;
/**
 * Creates a tapleaf hash for a given script
 * @param script - The script to create a tapleaf hash for
 * @param leafVersion - The version of the leaf
 * @returns The tapleaf hash
 */
export declare function tapleafHash(script: Script, leafVersion?: number): Buffer;