/// <reference types="node" />
import type { AttestationDocument } from '@capeprivacy/types';
import { CertificateChainValidationEngineVerifyResult } from 'pkijs';
export declare const verifyCertChain: (doc: AttestationDocument, rootCert: Buffer, checkDate?: Date) => Promise<CertificateChainValidationEngineVerifyResult>;
export declare const getAWSRootCert: (url: string) => Promise<Buffer>;
export declare const getCertificateNotBefore: (certificate: Uint8Array) => Date;