import { Hashable } from "../common/crypto";
export declare class Md5Hash {
    private hash?;
    update(data: Hashable): void;
    finalize(truncate_to?: number): DataView;
}
/**
 * Computes an MD5 hash. Use this if you don't need to stream the data you're hashing and can load the entire input
 * into memory.
 *
 * @param data The data to hash
 * @param truncate_to The maximum number of bytes to receive. Leave as undefined or 0 to receive the entire digest.
 */
export declare function hash_md5(data: Hashable, truncate_to?: number): DataView;
export declare class Sha256Hash {
    private hash?;
    update(data: Hashable): void;
    finalize(truncate_to?: number): DataView;
}
/**
 * Computes an SHA256 hash. Use this if you don't need to stream the data you're hashing and can load the entire input
 * into memory.
 *
 * @param data The data to hash
 * @param truncate_to The maximum number of bytes to receive. Leave as undefined or 0 to receive the entire digest.
 */
export declare function hash_sha256(data: Hashable, truncate_to?: number): DataView;
export declare class Sha256Hmac {
    private hmac;
    constructor(secret: Hashable);
    update(data: Hashable): void;
    finalize(truncate_to?: number): DataView;
}
/**
 * Computes an SHA256 HMAC. Use this if you don't need to stream the data you're hashing and can load the entire input
 * into memory.
 *
 * @param secret The key to use for the HMAC process
 * @param data The data to hash
 * @param truncate_to The maximum number of bytes to receive. Leave as undefined or 0 to receive the entire digest.
 */
export declare function hmac_sha256(secret: Hashable, data: Hashable, truncate_to?: number): DataView;