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.. image:: https://travis-ci.org/emulbreh/pyffx.svg?branch=master :target: https://travis-ci.org/emulbreh/pyffx
pyffx is a pure Python implementation of Format-preserving, Feistel-based encryption (FFX).
The FFX Mode of Operation for Format-Preserving Encryption
_Addendum to “The FFX Mode of Operation for Format-Preserving Encryption”
_Only method 2 is implemented.
See also libffx
_
.. code-block:: python
>>> import pyffx
>>> e = pyffx.Integer(b'secret-key', length=4)
>>> e.encrypt(1234)
6103
>>> e.decrypt(6103)
1234
>>> e = pyffx.String(b'secret-key', alphabet='abc', length=6)
>>> e.encrypt('aaabbb')
'acbacc'
>>> e.decrypt('acbacc')
'aaabbb'
.. _The FFX Mode of Operation for Format-Preserving Encryption: http://csrc.nist.gov/groups/ST/toolkit/BCM/documents/proposedmodes/ffx/ffx-spec.pdf .. _Addendum to “The FFX Mode of Operation for Format-Preserving Encryption”: http://csrc.nist.gov/groups/ST/toolkit/BCM/documents/proposedmodes/ffx/ffx-spec2.pdf .. _libffx: https://github.com/kpdyer/libffx
FAQs
pure Python format preserving encryption
We found that pyffx demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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