/// <reference types="node" />
import { OctKey } from '../../jwk/algorithms/oct/oct.key';
import { JsonWebSignatureAlgorithm } from './jsonwebsignature.algorithm';
import { SupportedJsonWebSignatureAlgorithm } from './types/supported-jsonwebsignature-algorithm';
/**
 * Implementation of the JSON Web Signature HMAC Algorithm.
 */
declare class HmacAlgorithm extends JsonWebSignatureAlgorithm {
    /**
     * Size of the Secret accepted by the JSON Web Signature HMAC Algorithm.
     */
    protected readonly keySize: number;
    /**
     * Instantiates a new JSON Web Signature HMAC Algorithm to Sign and Verify the Messages.
     *
     * @param hash Hash Algorithm used to Sign and Verify the Messages.
     * @param algorithm Name of the JSON Web Signature Algorithm.
     * @param keySize Size of the Secret accepted by the JSON Web Signature HMAC Algorithm.
     */
    constructor(hash: string, algorithm: SupportedJsonWebSignatureAlgorithm, keySize: number);
    /**
     * Signs a Message with the provided JSON Web Key.
     *
     * @param message Message to be Signed.
     * @param key JSON Web Key used to Sign the provided Message.
     * @returns Resulting Signature of the provided Message.
     */
    sign(message: Buffer, key: OctKey): Promise<Buffer>;
    /**
     * Checks if the provided Signature matches the provided Message based on the provide JSON Web Key.
     *
     * @param signature Signature to be matched against the provided Message.
     * @param message Message to be matched against the provided Signature.
     * @param key JSON Web Key used to verify the Signature and Message.
     */
    verify(signature: Buffer, message: Buffer, key: OctKey): Promise<void>;
    /**
     * Checks if the provided JSON Web Key can be used by the JSON Web Signature HMAC Algorithm.
     *
     * @param key JSON Web Key to be checked.
     * @throws {InvalidJsonWebKeyException} The provided JSON Web Key is invalid.
     */
    protected validateJsonWebKey(key: OctKey): void;
}
/**
 * HMAC using SHA-256.
 */
export declare const HS256: HmacAlgorithm;
/**
 * HMAC using SHA-384.
 */
export declare const HS384: HmacAlgorithm;
/**
 * HMAC using SHA-512.
 */
export declare const HS512: HmacAlgorithm;
export {};