/// <reference types="node" />
declare class CookieValuePrefix {
    /**
     *  Create a new cookie value prefix for the given cookie name.
     */
    static create(cookieName: string, key: Buffer): string;
    /**
     * Validate a cookie value contains a valid prefix. If it does, return the cookie value with the prefix removed. Otherwise, return null.
     */
    static validate(cookieName: string, cookieValue: string, key: Buffer): string | null;
    /**
     * Remove the cookie value prefix.
     */
    static remove(cookieValue: string): string;
}
export default CookieValuePrefix;