Strong domain-specific passwords generator
|Author:||Olivier Grisel <email@example.com>|
|description:||Generate rebuildable strong passwords|
domain_password == base62(sha1(master_password + domain_key))[:8]
This utility script helps generate a set of rebuildable domain-specific strong passwords out of a single easy to remember master password and domain specific keys such as “login@host”.
The generated passwords are strong since they use 8 characters out of a 62 characters long alphabet (lowercase and uppercase letters + digits) that are not to be found in any dictionary.
You can always re-generate your passwords by taking the base 62 encoding of the sha1 hash of the concatenation of your master password and domain key.
$ easy_install -U virtualkeyring
Use the interactive command-line tool vkr that should now be in your PATH, and type in you master password and domain key:
$ vkr master password: mysecret domain key [e.g. 'login@host']: firstname.lastname@example.org your password is: hRnf6udB please clean your console (ctrl-L) after usage
To generate passwords with length larger that 8 chars, for instance for an ssh key passphrase:
$ vkr -l 20 master password: mysecret domain key [e.g. 'login@host']: foobar@id_rsa your password is: ClRsTi3btiFhT1weDq0L please clean your console (ctrl-L) after usage
To generate passwords for a specific alphabet:
$ vkr -a 42aAuUTt master password: mysecret domain key [e.g. 'login@host']: email@example.com your password is: AatT2UAa please clean your console (ctrl-L) after usage
- 1.2 (2008-05-16): add -l and -a parameters
- 1.1 (2008-02-16) use getpass to read the master password from the keyboard
- 1.0 (2007-11-10) initial relase
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