Library for securely hashing passwords
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Latest commit dc296be Oct 20, 2016 @weavejester committed on GitHub Merge pull request #7 from s33dunda/master
Refactor bcrypt/encrypt to remove duplication


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A Clojure library for securing user passwords using a key derivation function. Supports the following algorithms:


Add the following dependency to your project.clj file:

[crypto-password "0.2.0"]


Pick an encryption algorithm, either pbkdf2, bcrypt or scrypt:

(require '[crypto.password.<algorithm> :as password])

Then use the encrypt function to apply a secure, one-way encryption algorithm to a password:

(def encrypted (password/encrypt "foobar"))

And the check function to check the encrypted password against a plaintext password:

(password/check "foobar" encrypted) ;; => true


The default options for the key derivation algorithms were chosen based on benchmarks carried on on a AWS t1.micro server running Ubuntu 13.10 (ami-35dbde5c), in March 2014.

On this hardware, the key derivation functions take approximately 200ms to complete with their default options. This is a short enough time to not be an inconvenience for a human being, but long enough to make brute forcing encrypted passwords very costly.



Copyright © 2016 James Reeves

Distributed under the Eclipse Public License, the same as Clojure.