NOT YET RELEASED, AND NOT NECESSARILY STABLE. DON'T STORE YOUR PASSWORDS WITH THIS JUST YET.
Simple password generator. Given a passphrase and the name of a service, returns a strong password for that service. You only need to remember your passphrase, which you do not give to anyone, and this program will give a different password for every service you use. The passphrase can be any text you like.
Given the same passphrase and service name, the program will generate the same result every time, so you can use it to 'look up' those impossible-to-remember passwords when you need them.
According to Dropbox's zxcvbn password strength measure,
if your dictionary English password takes about a second to crack, those
vault take over a million times the age of the observable
universe to crack by brute force.
I have a terrible memory and like keeping my stuff safe. Strong service-specific passwords are hard to remember, and many services have stupid restrictions on passwords. I want to remember one phrase and have a machine deal with making my passwords strong.
npm install -g vault
The most basic usage involves passing your passphrase and the service name; when
you pass the
-p flag you will be prompted for your passphrase:
$ vault google -p Passphrase: ********* Zl51S48;v69x£*4<
You can set the desired length using
$ vault google -p -l 6 Passphrase: ********* zcF;'S
You can control the character types present in the output, either to disable certain types or make sure they are present. For example, to get a password with no symbols in it:
$ vault google -p --symbol 0 Passphrase: ********* Zf86R FZY FcKCXX
To get a password containing at least one dash and uppercase letter:
$ vault google -p --dash 1 --upper 1 Passphrase: ********* ZC 9R -Y9><0Udm4
Available character classes include:
lower: lowercase letters,
upper: uppercase letters,
alpha: all letters,
number: the digits
space: the space character
dash: dashes (
-) and underscores (
symbol: other 'special' characters
Saving your settings
If you like, you can store your passphrase on disk;
vault will save it in a
.vault in your home directory.
.vault file is encrypted with AES-256, using your username as the key by
default. You can set your own key using the
VAULT_KEY environment variable.
You can also change the location of the file using the
for example you might set
VAULT_PATH=Dropbox/.vault to sync it using Dropbox.
If you do this, make sure any files containing the key are NOT also exposed to
To save your passphrase, pass the
$ vault -c -p Passphrase: ********* $ vault google Zl51S48;v69x£*4<
You can also configure character class settings this way:
$ vault -c --alpha 0 $ vault google -p Passphrase: ********* ]2|" %1~"='|1]3>
Both the passphrase and the character class settings can be overridden on a per-service basis:
$ vault -c twitter --alpha 1 --symbol 0 $ vault twitter -p Passphrase: ********* c14EBzG8vF2uiXd2 $ vault google -p Passphrase: ********* ]2|" %1~"='|1]3>
How does it work?
vault takes your passphrase and a service name and signs the service name with
the passphrase using HMAC-SHA256. It then encodes the bits of this hash using a
92-character alphabet, subject to the given character constraints. This design
makes sure that each password is very hard to break by brute force, and ensures
that the discovery of one service's password does not lead to other accounts
being compromised. It also means you can tailor the output to the character set
accepted by each service.
(The MIT License)
Copyright (c) 2011-2012 James Coglan
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.