elocrypt: Generate easy-to-remember, hard-to-guess passwords

[ cryptography, library, program ] [ Propose Tags ]

Generates pronounceable, hard-to-guess passwords--as hard as Vince Carter's knee cartilage is.

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Versions [faq] 0.3.0, 0.3.1, 0.3.2, 0.4.0, 0.4.1, 0.6.0, 1.0.0, 2.0.0, 2.0.1
Dependencies base (>=4.7 && <5), elocrypt, MonadRandom, random [details]
License LicenseRef-OtherLicense
Copyright Copyright: (c) 2017 Sean Gillespie
Author Sean Gillespie
Maintainer sean@mistersg.net
Category Cryptography
Home page https://www.github.com/sgillespie/elocrypt
Source repo head: git clone https://github.com/sgillespie/elocrypt.git
this: git clone https://github.com/sgillespie/elocrypt.git(tag v2.0.1)
Uploaded by sgillespie at Mon Apr 1 00:47:21 UTC 2019
Distributions NixOS:2.0.1
Executables elocrypt
Downloads 3010 total (91 in the last 30 days)
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Status Hackage Matrix CI
Docs available [build log]
Last success reported on 2019-04-01 [all 1 reports]


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Maintainer's Corner

For package maintainers and hackage trustees

Readme for elocrypt-2.0.1

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Build Status

Elocrypt generates pronounceable, easy-to-remember, hard-to-guess passwords... as hard as Vince Carter's knee cartilage is. Elocrypt includes a Haskell library and program.


In order to build or install you will need

  • GHC (tested on 8.0)
  • cabal-install (tested on 1.24)


Elocrypt is on Hackage. Installation is as easy as:

cabal install elocrypt

Binaries are also available:


Generate a list passwords:

elocrypt [length]

You can also generate random phrases (1 per line):

elocrypt --passphrases [min-length] [max-length]

Obtaining the source

Elocrypt sources can be found


In order to build or install you will need

Build elocrypt:

stack setup
stack build

Then, install (if desired):

stack install

API Documentation

The full API documentation is on hackage @ https://hackage.haskell.org/package/elocrypt/docs. To build the documentation yourself, run

stack haddock

API Examples

You can use elocrypt to generate words in any Haskell code, so long as you have installed elocrypt. Generate a word by using Data.Elocrypt.newPassword

import Data.Elocrypt
-- Generate a word of length 10
fooGen :: IO String
fooGen = newPassword 10 `liftM` getStdGen

Alternatively, you can use Data.Elocrypt.mkPassword if you want to complete control of the random monad

import Data.Elocrypt
import Control.Monad.Random
-- Generate a word of length 10
fooGen' :: IO String
fooGen' = evalRand (mkPassword 10) `liftM` getStdGen


Sean Gillespie sean@mistersg.net


Thanks to Tom Van Vleck for creating a 3rd order english approximation password generator. Elocrypt is based on his javascript generator @ http://www.multicians.org/thvv/gpw-js.html


You can use this source for any reason, provided that you:

Please see LICENSE for all details