export declare const encrypt: <T>(payload: T, k: CryptoKey) => Promise<{
    cypher: Uint8Array;
    iv: string;
}>;
export declare const decrypt: <T>(payload: Uint8Array, k: CryptoKey, ivString: string) => Promise<T>;
export declare const checkIfKeysMatch: (key1: CryptoKey, key2: CryptoKey) => Promise<boolean>;
export declare const kdf: (password: string) => Promise<CryptoKey>;