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A Unix password generator, encrypting passwords locally with Java's AES/CBC/PKCS5Padding mode.

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genpass

A Unix password generator, storing the encrypted passwords locally. Passwords are encrypted with Java's AES/CBC/PKCS5Padding mode via the [lock-key "1.1.0"] clojar.

Written with Clojure and managed with Leiningen.

Installation

Download the repo.

Usage

Create a jar with leiningen. You can run the jar as follows:

$ java -jar genpass-0.1.0-standalone.jar [options] action [login]
Actions:
   gen <login>      Generate a new password

   get <login>      Get a password

   rem <login>      Remove a user:password mapping

   list             List all users

   changepw         Change the encryption password

Options

-l Password length e.g. -l30 (default 20)

-t Clipboard timeout (ms) e.g. -t1000 (default 8000)

-v Verbosity of encryption e.g. -v, -vv, -vvv

-h Show help

-s Show password to stdout

How many verbose (-v) flags determine what sets of characters to use for encryption. With no flags the password will consist of uppers. With one flag (-v) the password could contain uppers and lowers. And (-vv) will include nums into the previous level, and (-vvv) including special characters.

Examples

The following demonstrates generating a password for mywebsite and retrieving it.

   $ java -jar genpass-0.1.0-SNAPSHOT-standalone.jar gen mywebsite -l25 -vvv -t3000
   $ enter password>
   $ Copied to clipboard

   $ java -jar genpass-0.1.0-SNAPSHOT-standalone.jar get mywebsite
   $ enter password>
   $ Copied to clipboard

   $ java -jar genpass-0.1.0-SNAPSHOT-standalone.jar list
   $ enter password>
   $ {"mywebsite" "mwyMTA9Jo(xaV0%)NCv3"}

   $ java -jar genpass-0.1.0-SNAPSHOT-standalone.jar get -s mywebsite
   $ enter password>
   $ mwyMTA9Jo(xaV0%)NCv3

   $ java -jar genpass-0.1.0-SNAPSHOT-standalone.jar rem mywebsite
   $ enter password>
   $ User removed

To re-generate a password just call gen with the same login. To make the command easier, add an alias for each command.

To block java from taking focus, add the following flag to java when launching the jar.

        $ java -Dapple.awt.UIElement=true -jar ... 

Local password encryption

By default, it will generate a .genpass file in your homedirectory (if it doesn't exist). It will encrypt it's contents (With with a supplied password) using symmetric encryption in AES/CBC/PKCS5Padding mode. If you are sharing the machine, be sure to chmod the .genpass file to allow only the owner (you) read and write permission.

Un-encrypted contents are stored in a CSV format i.e (login1,randpass1\nlogin2randpass2\n).

Pasting to clipboard

It is possible for the clipboard to be read by unwanted programs, therefore the clipboard is cleared after the specified time (default 8 seconds after a get/set call). It is also possible to disable clipboard reading in certain browsers such as Firefox.

License

Copyright © 2015 Richard Haar

Distributed under the Eclipse Public License version 1.0.

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A Unix password generator, encrypting passwords locally with Java's AES/CBC/PKCS5Padding mode.

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