import { CryptoService } from '../../business';
import { ConfigService } from "@nestjs/config";
export declare class CsrfService {
    private readonly request;
    private readonly crypto;
    private readonly csrfTokenExpire;
    constructor(request: any, crypto: CryptoService, config: ConfigService);
    generateCsrfToken(): string;
    validateCsrfToken(token: string): void;
}