export declare enum SecretToUse {
    AES = 0,
    HMAC = 1
}
export declare class Crypt {
    static secrets: string[];
    private static iv;
    private static maxlen;
    constructor(secrets: string[], initvector: string);
    static encryptAES256(text: string, secretId: SecretToUse | number): string;
    static decryptAES256(text: string, secretId: SecretToUse | number): string;
    static hmacSHA512(text: string, secretId: SecretToUse | number): string;
    private static checkLength;
    static sign<T extends Extendable>(obj: T, skipProperties?: string[]): T & ISigned;
    static checkSignature<T extends Extendable>(obj: T, skipProperties?: string[]): boolean;
    private static toString;
}
export interface ISigned {
    signature: string;
}
export interface Extendable {
    [key: string]: any;
}
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