bcrypt.wasm

bcrypt.wasm

WebAssembly implementation of bcrypt. This module began life as a quasi-fork of the bcrypt module. Currently, only the synchronous APIs are available.

Basic Usage

'use strict';
const Bcrypt = require('bcrypt.wasm');
const data = 'password';
const salt = Bcrypt.genSaltSync();
const hash = Bcrypt.hashSync(data, salt);

Bcrypt.compareSync(data, hash); // equals true
Bcrypt.compareSync(data + 'x', hash); // equals false

API

bcrypt.wasm exports the following methods.

compareSync(data, hash)

• Arguments
  • data (string) - Cleartext data to compare against an encrypted hash.
  • hash (string) - An encrypted hash to compare against cleartext input.
• Returns
  • match (boolean) - true if the comparison succeeds, and false otherwise.

genSaltSync(rounds)

• Arguments
  • rounds (number) - The cost of generating a salt. Optional. Defaults to 10.
• Returns
  • salt (string) - The generated salt.

getRounds(hash)

• Arguments
  • hash (string) - An encrypted hash.
• Returns
  • rounds (number) - The number of rounds used to encrypt hash.

hashSync(data, salt)

• Arguments
  • data (string) - Cleartext data to encrypt.
  • salt (number or string) - The salt used to hash data. If salt is a number, it is passed to genSaltSync() to generate a salt string.
• Returns
  • hash (string) - The encrypted hash of data using salt.