declarations/bcryptjs/bcryptjs.d.ts

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// Type definitions for bcryptjs v2.3.0
// Project: https://github.com/dcodeIO/bcrypt.js
// Definitions by: Joshua Filby <https://github.com/Joshua-F/>
// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped

declare module "bcryptjs" {

    /**
     * Sets the pseudo random number generator to use as a fallback if neither node's crypto module nor the Web Crypto API is available.
     * Please note: It is highly important that the PRNG used is cryptographically secure and that it is seeded properly!
     * @param  random Function taking the number of bytes to generate as its sole argument, returning the corresponding array of cryptographically secure random byte values.
     */
    export function setRandomFallback(random: (random: number) => number[]): void;

    /**
     * Synchronously generates a salt.
     * @param  rounds Number of rounds to use, defaults to 10 if omitted
     * @return Resulting salt
     */
    export function genSaltSync(rounds?: number): string;

    /**
     * Asynchronously generates a salt.
     * @param callback Callback receiving the error, if any, and the resulting salt
     */
    export function genSalt(callback: (err: Error, salt: string) => void): void;

    /**
     * Asynchronously generates a salt.
     * @param  rounds   Number of rounds to use, defaults to 10 if omitted
     * @param  callback Callback receiving the error, if any, and the resulting salt
     */
    export function genSalt(rounds: number, callback: (err: Error, salt: string) => void): void;

    /**
     * Synchronously generates a hash for the given string.
     * @param  s    String to hash
     * @param  salt Salt length to generate or salt to use, default to 10
     * @return Resulting hash
     */
    export function hashSync(s: string, salt?: number | string): string;

    /**
     * Asynchronously generates a hash for the given string.
     * @param s                String to hash
     * @param salt             Salt length to generate or salt to use
     * @param callback         Callback receiving the error, if any, and the resulting hash
     * @param progressCallback Callback successively called with the percentage of rounds completed (0.0 - 1.0), maximally once per MAX_EXECUTION_TIME = 100 ms.
     */
    export function hash(s: string, salt: number | string, callback: (err: Error, hash: string) => void, progressCallback?: (percent: number) => void): void;

    /**
     * Synchronously tests a string against a hash.
     * @param  s    String to compare
     * @param  hash Hash to test against
     * @return true if matching, otherwise false
     */
    export function compareSync(s: string, hash: string): boolean;

    /**
     * Asynchronously compares the given data against the given hash.
     * @param  s                Data to compare
     * @param  hash             Data to be compared to
     * @param  callback         Callback receiving the error, if any, otherwise the result
     * @param  progressCallback Callback successively called with the percentage of rounds completed (0.0 - 1.0), maximally once per MAX_EXECUTION_TIME = 100 ms.
     */
    export function compare(s: string, hash: string, callback: (err: Error, success: boolean) => void, progressCallback?: (percent: number) => void): void;

    /**
     * Gets the number of rounds used to encrypt the specified hash.
     * @param  hash Hash to extract the used number of rounds from
     * @return Number of rounds used
     */
    export function getRounds(hash: string): number;

    /**
     * Gets the salt portion from a hash. Does not validate the hash.
     * @param  hash Hash to extract the salt from
     * @return Extracted salt part
     */
    export function getSalt(hash: string): string;
}