Note

This documentation is for a development version of IPython. There may be significant differences from the latest stable release (1.2.1).

Module: lib.security

Password generation for the IPython notebook.

2 Functions

IPython.lib.security.passwd(passphrase=None, algorithm='sha1')

Generate hashed password and salt for use in notebook configuration.

In the notebook configuration, set c.NotebookApp.password to the generated string.

Parameters:

passphrase : str

Password to hash. If unspecified, the user is asked to input and verify a password.

algorithm : str

Hashing algorithm to use (e.g, ‘sha1’ or any argument supported by hashlib.new()).

Returns:

hashed_passphrase : str

Hashed password, in the format ‘hash_algorithm:salt:passphrase_hash’.

Examples

>>> passwd('mypassword')
'sha1:7cf3:b7d6da294ea9592a9480c8f52e63cd42cfb9dd12'

IPython.lib.security.passwd_check(hashed_passphrase, passphrase)

Verify that a given passphrase matches its hashed version.

Parameters:

hashed_passphrase : str

Hashed password, in the format returned by passwd.

passphrase : str

Passphrase to validate.

Returns:

valid : bool

True if the passphrase matches the hash.

Examples

>>> from IPython.lib.security import passwd_check
>>> passwd_check('sha1:0e112c3ddfce:a68df677475c2b47b6e86d0467eec97ac5f4b85a',
...              'mypassword')
True

>>> passwd_check('sha1:0e112c3ddfce:a68df677475c2b47b6e86d0467eec97ac5f4b85a',
...              'anotherpassword')
False