import { Trust } from './trust';
import * as PeerId from 'peer-id';
export interface Certificate {
    chain: Trust[];
}
export declare function certificateToString(cert: Certificate): string;
export declare function certificateFromString(str: string): Promise<Certificate>;
export declare function issueRoot(issuedBy: PeerId, forPk: PeerId, expiresAt: number, issuedAt: number): Promise<Certificate>;
export declare function issue(issuedBy: PeerId, forPk: PeerId, extendCert: Certificate, expiresAt: number, issuedAt: number): Promise<Certificate>;
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