/**
 * This method can be used to verify a cip30 data signature.
 *
 * https://cips.cardano.org/cips/cip30/#datasignature
 * type DataSignature = {
 *   signature: cbor\<COSE_Sign1>,
 *   key: cbor\<COSE_Key>,
 * };
 *
 * Optional:
 *
 * Furthermore a plain text message can be provided to check if both
 * the plain text and the signed message are equal
 *
 * Also a payment (addr1/addr_test1) or stake address (stake1/stake_test1) can be provided
 * to verify that this readable address belongs to the signature
 *
 * @param {string} signature - A COSE_Sign1 cbor string.
 * @param {string} key - A COSE_Key cbor string
 * @param {string} message - An optional plain text message
 * @param {string} address - An optional address starting with (addr1/addr_test1/stake1/stake_test1)
 * @returns {string} boolean - True if the verification was successful otherwise false
 */
declare const verifySignature: (signature: string, key: string, message?: string, address?: string) => boolean;
export default verifySignature;