shacrypt

shacrypt is a simple enough wrapper over sha256-crypt and sha512-crypt functions originally created by Ulrich Drepper. See http://www.akkadia.org/drepper/SHA-crypt.txt

Installation

npm install shacrypt

Usage

• Prerequisite

  var shacrypt = require('shacrypt');

• Generate password hash:

  var hash = shacrypt.sha256crypt('super password');

// hash = $5$rounds=5000$3a1afb28e54a0391$0d6RupbpABtxCaH8WWOemYwEcToDVZXX/tHpIy6O1U3 ```

• Validate password:

  console.log(hash == shacrypt.sha256crypt('super password', hash);
  // true

• Specify number of rounds (default is 5000):

  var hash = shacrypt.sha256crypt('super password', 10000);
  // hash = $5$rounds=10000$b2c0a3ef466b2ec7$poVvVeQAQSE.yec0LBFddzQ9kZ4UxzA5VtsZQShAyt8

• Provide your own SALT:

  var hash = shacrypt.sha256crypt('super password', 'my-salt');
  // or with iterations=10000
  var hash = shacrypt.sha256crypt('super password', 'my-salt', 10000);

Authors

• Oleksiy Krivoshey https://github.com/oleksiyk
• Original C code by Ulrich Drepper: http://www.akkadia.org/drepper/SHA-crypt.txt

License (MIT)

Copyright (c) 2013-2015 Oleksiy Krivoshey.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.