import { Notification } from '../models/notifications';
export declare const ALPHABET_SIZE = 1024;
export declare const SECURITY_CODE_LENGTH = 6;
export declare const SECURITY_CODE_WITH_FAKES_LENGTH = 12;
export declare const MASK = 1023;
declare class KeyWithCode {
    key: string;
    code: number[];
    constructor(key: string);
}
export declare const generateCodeWithFakes: (publicKey: string) => number[];
export declare const generateCode: (publicKey: string) => number[];
export declare const isValidCode: (code: number[], publicKey?: string | undefined) => boolean;
export declare const isCodeSufficientButInvalid: (code: number[], publicKey?: string | undefined) => boolean;
export declare const filterNotificationByCodePrefix: (notifications: Notification[], codePrefix: number[]) => string[];
export declare const filterKeyWithCodeByPrefix: (keysWithCodes: KeyWithCode[], prefix: number[]) => string[];
export declare const addressTo16bitBytes: (publicKey: string) => number[];
export declare const addCodesToNotifications: (notifications: Notification[]) => {
    securityCodeWithFakes: number[];
    id: number;
    key: string;
    walletContractAddress: string;
    deviceInfo: import("../models/notifications").DeviceInfo;
}[];
export declare const isProperCodeNumber: (code: number) => boolean;
export declare const isProperSecurityCode: (securityCode: number[]) => boolean;
export declare const isProperSecurityCodeWithFakes: (securityCode: number[]) => boolean;
export {};
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