@covenance/dlc/dist/crypto/general.d.ts

Crypto and Bitcoin functions for Covenance DLC implementation

import { Point } from './secp256k1';
import { PubKey, Signature } from './types';
/**
 * Function to verify a general signature
 * @param sig - The signature to verify
 * @param pubKey - The public key to verify against
 * @param message - The message that was signed
 * @param tag - The tag to use for hashing (defaults to BIP0340/challenge)
 * @returns Boolean indicating whether the signature is valid
 */
export declare function verifySig(sig: Signature, pubKey: PubKey, message: Uint8Array, tag?: Uint8Array): Promise<boolean>;
/**
 * Function to verify a signature with additional script interpreter like verification
 * @param sig - The signature to verify
 * @param pubKey - The public key to verify against
 * @param message - The message that was signed
 * @param tag - The tag to use for hashing (defaults to BIP0340/challenge)
 * @returns Boolean indicating whether the signature is valid
 */
export declare function verifySigStrict(sig: Signature, pubKey: PubKey, message: Uint8Array, tag?: Uint8Array): Promise<boolean>;
/**
 * Encodes a point as a BIP-340 x-only key
 * @param point - The point to encode
 * @returns The encoded point as a 32-byte Buffer
 */
export declare function encodeXOnlyPubkey({ x, y }: Point): Buffer;
/**
 * Modulus operation that handles negative numbers
 * @param k - The number to mod
 * @param n - The modulus
 * @returns The modulus of k and n
*/
export declare function mod(k: bigint, n: bigint): bigint;