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A python 3 version of XTEA

Project Description

This is an XTEA-Cipher implementation in Python 3 (eXtended Tiny Encryption Algorithm).

XTEA is a small blockcipher with 8 bytes blocksize and 16 bytes Keysize (128-Bit). The algorithm is secure at 2014 with the recommend 64 rounds (32 cycles). The minimum for rounds is 38 (19 cycles). This implementation supports following modes of operation: ECB, CFB, CBC, OFB, CTR. It also supports CBC-MAC

Documentation can be found here.

Example:

>>> from xtea3 import *
>>> key = b" "*16  # Never use this key
>>> text = b"This is a text. "*8
>>> x = new(key, mode=MODE_OFB, IV=b"12345678")  # Never reuse the IV!
>>> c = x.encrypt(text)
>>> text == x.decrypt(c)
True

Note

I does NOT guarantee that this implementation is secure. If there are bugs, tell me them. The old version for Python 2 will still be updated. My GPG/PGP key: 0CB97138 (full fingerprint: 8F93 4984 3BA7 4A1C E5F2 A1BA 1338 DFDE 0CB9 7138)

Changelog

Version 0.3.0; Jul 18, 2014

[0.3.0] Fixed CBCMAC

  • Fixed CBCMAC implementation
  • Added documentation

Version 0.2.0; Jul 18, 2014

[0.2.0] CBC, CFB, CTR | added CBCMAC

  • Added CBC, CFB, CTR and CBCMAC
  • Raises a NonImplementedError on other modes (PGP, unofficial CCM and others)

Version 0.1.1; Long ago…

[0.1.1] NotImplementedError on CFB

  • Module raises a NotImplementedError on CFB
  • Minor changes

Version 0.1; Jun 22, 2014

[0.1] Initial release

  • Supports all mode except CFB
  • Buggy CTR
  • Working with PEP 272, default mode is ECB

Release history Release notifications

History Node

0.3.2

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0.3.1

This version
History Node

0.3

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0.2

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0.1

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Filename, size & hash SHA256 hash help File type Python version Upload date
xtea3-0.3-py2.py3-none-any.whl (9.8 kB) Copy SHA256 hash SHA256 Wheel 3.3 Jul 21, 2014
xtea3-0.3.tar.gz (7.6 kB) Copy SHA256 hash SHA256 Source None Jul 21, 2014
xtea3-0.3.win32.exe (201.4 kB) Copy SHA256 hash SHA256 Windows Installer any Jul 21, 2014
xtea3-0.3.zip (10.9 kB) Copy SHA256 hash SHA256 Source None Jul 21, 2014

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