import { MaybePromise } from '../../types/index.js';
export interface IEncryptionScheme {
    encrypt: (data: Uint8Array) => Uint8Array;
    decrypt: (data: Uint8Array) => Uint8Array;
}
export interface IAesCtr {
    process: (data: Uint8Array) => Uint8Array;
    close?: () => void;
}
export interface ICryptoProvider {
    initialize?: () => MaybePromise<void>;
    sha1: (data: Uint8Array) => Uint8Array;
    sha256: (data: Uint8Array) => Uint8Array;
    pbkdf2: (password: Uint8Array, salt: Uint8Array, iterations: number, keylen?: number, // = 64
    algo?: string) => MaybePromise<Uint8Array>;
    hmacSha256: (data: Uint8Array, key: Uint8Array) => MaybePromise<Uint8Array>;
    createAesCtr: (key: Uint8Array, iv: Uint8Array, encrypt: boolean) => IAesCtr;
    createAesIge: (key: Uint8Array, iv: Uint8Array) => IEncryptionScheme;
    factorizePQ: (pq: Uint8Array) => MaybePromise<[Uint8Array, Uint8Array]>;
    gzip: (data: Uint8Array, maxSize: number) => Uint8Array | null;
    gunzip: (data: Uint8Array) => Uint8Array;
    randomFill: (buf: Uint8Array) => void;
    randomBytes: (size: number) => Uint8Array;
}
export declare abstract class BaseCryptoProvider {
    abstract randomFill(buf: Uint8Array): void;
    factorizePQ(pq: Uint8Array): [Uint8Array, Uint8Array];
    randomBytes(size: number): Uint8Array;
}