import * as client from './client';
export declare type Permission = 'SAFE_DRIVE_ACCESS';
export interface AuthInfo {
    app: AuthAppInfo;
    permissions?: Permission[];
    publicKey?: string;
    nonce?: string;
}
export interface AuthAppInfo {
    name: string;
    id: string;
    version: string;
    vendor: string;
}
export interface AuthResult {
    info: AuthInfo;
    token: string;
    sharedKey: Uint8Array;
    nonce: Uint8Array;
}
export declare function auth(cl: client.Client, info: AuthInfo, privateKey?: string): Promise<AuthResult>;
export declare function isValidToken(cl: client.Client): Promise<boolean>;
export declare function ensureAuthed(cl: client.Client, info: AuthInfo): Promise<any>;