export interface Argon2idOptions {
    /** Output length in bytes */
    readonly outputLength: number;
    /**
     * An integer between 1 and 4294967295 representing the computational difficulty.
     *
     * @see https://libsodium.gitbook.io/doc/password_hashing/default_phf#key-derivation
     */
    readonly opsLimit: number;
    /**
     * Memory limit measured in KiB (like argon2 command line tool)
     *
     * Note: only approximately 16 MiB of memory are available using the non-sumo version of libsodium.js
     *
     * @see https://libsodium.gitbook.io/doc/password_hashing/default_phf#key-derivation
     */
    readonly memLimitKib: number;
}
export declare function isArgon2idOptions(thing: unknown): thing is Argon2idOptions;
export declare class Argon2id {
    static execute(password: string, salt: Uint8Array, options: Argon2idOptions): Promise<Uint8Array>;
}