import type { HashComponent, KdfComponent, PresetComponent } from '@jscrypto/core';
export interface HkdfParams {
    input: Uint8Array | string;
    salt?: Uint8Array | string;
    info?: Uint8Array | string;
    hash: string;
    length: number;
}
export interface HkdfExtractParams {
    input: Uint8Array | string;
    salt?: Uint8Array | string;
    hash: HashComponent;
}
export interface HkdfExpandParams {
    input: Uint8Array | string;
    info?: Uint8Array | string;
    hash: HashComponent;
    length: number;
}
export interface DeriveHkdfParams {
    input: Uint8Array | string;
    salt?: Uint8Array | string;
    info?: Uint8Array | string;
    hash: HashComponent;
    length: number;
}
export declare const hkdf: KdfComponent<'HKDF'>;
export declare const hkdfExtract: KdfComponent<'HKDF-Extract'>;
export declare const hkdfExpand: KdfComponent<'HKDF-Expand'>;
export declare const hkdfPreset: PresetComponent<'hkdf'>;
export declare function extractHkdf(params: HkdfExtractParams): Uint8Array;
export declare function expandHkdf(params: HkdfExpandParams): Uint8Array;
export declare function deriveHkdf(params: DeriveHkdfParams): Uint8Array;