import AccountBase from '../account/Base.js';
import { Encoded } from './encoder.js';
declare const header = "eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9";
/**
 * JWT including specific header
 * @category JWT
 */
export type Jwt = `${typeof header}.${string}.${string}`;
/**
 * Generate a signed JWT
 * Provide `"sub_jwk": undefined` in payload to omit signer public key added by default.
 * @param originalPayload - Payload to sign
 * @param account - Account to sign by
 * @category JWT
 */
export declare function signJwt(originalPayload: any, account: AccountBase): Promise<Jwt>;
/**
 * Unpack JWT. It will check signature if address or "sub_jwk" provided.
 * @param jwt - JWT to unpack
 * @param address - Address to check signature
 * @category JWT
 */
export declare function unpackJwt(jwt: Jwt, address?: Encoded.AccountAddress): {
    /**
     * JWT payload as object
     */
    payload: any;
    /**
     * Undefined returned in case signature is not checked
     */
    signer: Encoded.AccountAddress | undefined;
};
/**
 * Check is string a JWT or not. Use to validate the user input.
 * @param maybeJwt - A string to check
 * @returns True if argument is a JWT
 * @category JWT
 */
export declare function isJwt(maybeJwt: string): maybeJwt is Jwt;
/**
 * Throws an error if argument is not JWT. Use to ensure that a value is JWT.
 * @param maybeJwt - A string to check
 * @category JWT
 */
export declare function ensureJwt(maybeJwt: string): asserts maybeJwt is Jwt;
/**
 * Check is JWT signed by address from arguments or "sub_jwk"
 * @param jwt - JWT to check
 * @param address - Address to check signature
 * @category JWT
 */
export declare function verifyJwt(jwt: Jwt, address?: Encoded.AccountAddress): boolean;
export {};