import type { Instance, Buffer, ActionWasm } from './wasm';
import type { Action, ExportType } from './enum';
export declare class Crypto {
    protected static wasm: Promise<Instance>;
    protected static getInstanceAsync(): Promise<Instance>;
    protected static readBufferAsync(buffer: Buffer): Promise<Uint8Array>;
    protected static getAction(action: Action, instance: Instance): ActionWasm;
    static toBase64(data: Uint8Array): string;
    static fromBase64(data: string): Uint8Array;
    static toHex(data: Uint8Array): string;
    static fromHex(data: string): Uint8Array;
    static toUtf8(data: Uint8Array): string;
    static fromUtf8(data: string): Uint8Array;
    static mergeUint8Array(arrs: Array<Uint8Array>): Uint8Array;
    static exportData(data: Uint8Array | Array<Uint8Array>, type?: ExportType): string | Uint8Array;
    static importData(data: Uint8Array | string, type?: ExportType): Uint8Array;
    protected getInstanceAsync(): Promise<Instance>;
    protected readBufferAsync(buffer: Buffer): Promise<Uint8Array>;
    protected getAction(action: Action, instance: Instance): ActionWasm;
    protected exportData(data: Uint8Array, type?: ExportType): Uint8Array | string;
}