Python XTEA

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

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

Example:

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

Resources

PyPi: https://pypi.org/project/xtea
Docs: http://xtea.readthedocs.io/
Source code: https://github.com/varbin/xtea
Issue tracker: https://github.com/varbin/xtea/issues

Changelog

Version 0.7.1, former 0.6.1 / 0.7.0; Jun 16, 2018

Improved tests
PEP8-style formatting
Unittests: Counter, modes (but not results of them!), test vectors
[BREAKING CHANGE] Counter class is now in xtea.counter
Python 3.3 is not tested anymore on Travis CI
[BREAKING CHANGE] CFB mode is now correctly implemented. By setting partition_size it is possible to set the internal partition size (in bits) as per PEP-272.
Python 3: An optional C extension improves speed upto a factor of 10.
[BREAKING CHANGE] block_size and key_size is now in bytes.
Skipped 0.7.0 with

(unreleased) Version 0.6.0; Oct 16, 2016

Python 3 does work now
[BREAKING CHANGE] counters cannot return numbers any more, they must return bytestrings now
[BREAKING CHANGE] Cipher objects remember state, so two consecutive calls to XTEACipher.encrypt should not return the same
improved documentation

(unreleased) Version 0.5.0; Oct 15, 2016

Removed CBCMAC

Version 0.4.1; Jul 30, 2015

Fixed installer

Version 0.4.0; Jul 12, 2014

Buggless & PEP compliant CTR
CTR mode works with strings now
raises DeprecatedWarning if a number is returned
CBCMAC class added (use static method CBCMAC.new(args) to create)

Version 0.3.2; Jul 11, 2014

Minor Fixes

Version 0.3.1; Jul 11, 2014

Minor Fixes
Fixed that the length of data will not be checked

Version 0.3.0; Jul 11, 2014

Added CFB mode
Fully working with PEP 272
Raising NotImplementedError only on PGP-CFB (OpenPGP) mode
Wheel support and changelog (0.2.1)

(unreleased) Version 0.2.1 - dev; Jul 10, 2014

Added better wheel support for uploading (just for me) with a setup.cfg
Added this file (auto uploading on pypi/warehouse and github)
(upload.py for github)

Version 0.2.0; Jul 9, 2014

Added a test feature; warning in CTR
Raises warning on CTR, added a handler that CTR will not crash anymore ;)

Version 0.1.1; Jul 9, 2014

Module raises a NotImplementedError on CFB
Minor changes

Version 0.1; Jun 22, 2014

Initial release
Supports all mode except CFB
Buggy CTR ( “ÃŸ” = “\xc3\x9f” )
Working with PEP 272, default mode is ECB

Release files for xtea 0.7.1

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for xtea 0.7.1
File	Size	Uploaded
xtea-0.7.1.tar.gz	7.8 kB	Jun 16, 2019	Details

Built distributions (wheels)

Table of built distributions (wheels) for xtea 0.7.1
File	Interpreter	ABI	Platform	Reset
xtea-0.7.1-py2.py3-none-any.whl 6.9 kB Jun 16, 2019	Python 2, Python 3	none	any	Details
xtea-0.7.1-cp37-cp37m-win_amd64.whl 12.3 kB Jun 16, 2019	CPython 3.7	CPython 3.7 pymalloc	Windows x86-64	Details
xtea-0.7.1-cp37-cp37m-win32.whl 11.6 kB Jun 16, 2019	CPython 3.7	CPython 3.7 pymalloc	Windows x86-32	Details
xtea-0.7.1-cp36-cp36m-win_amd64.whl 12.3 kB Jun 16, 2019	CPython 3.6	CPython 3.6 pymalloc	Windows x86-64	Details
xtea-0.7.1-cp36-cp36m-win32.whl 11.6 kB Jun 16, 2019	CPython 3.6	CPython 3.6 pymalloc	Windows x86-32	Details
xtea-0.7.1-cp35-cp35m-win_amd64.whl 12.3 kB Jun 16, 2019	CPython 3.5	CPython 3.5 pymalloc	Windows x86-64	Details
xtea-0.7.1-cp35-cp35m-win32.whl 11.6 kB Jun 16, 2019	CPython 3.5	CPython 3.5 pymalloc	Windows x86-32	Details

Total release size: 86.5 kB

Release files / xtea-0.7.1.tar.gz

Download URL	xtea-0.7.1.tar.gz
Size	7.8 kB
Tags	Source
SHA-256 checksum How to use checksums	`61f770d4d089f2aba42d4dc888fde98688b7d76af5ae50116b9ec53161e160ab`
BLAKE2b-256 checksum How to use checksums	`50f5834b9ee6ce7b2c53ff058a19029510cf5420585b3b1ae6fe8b6b0146a84f`
Upload date	Jun 16, 2019
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/1.13.0 pkginfo/1.5.0.1 requests/2.21.0 setuptools/40.8.0 requests-toolbelt/0.9.1 tqdm/4.19.4 CPython/3.7.3`

Release files / xtea-0.7.1-py2.py3-none-any.whl

Download URL	xtea-0.7.1-py2.py3-none-any.whl
Size	6.9 kB
Tags	Python 2 Python 3
SHA-256 checksum How to use checksums	`f2d02406d375faa57f6bd017c17aa70e02cfbd565f9060e44bfe8cb4cbfec7e2`
BLAKE2b-256 checksum How to use checksums	`9ea29c1af8d6b2636888ee26d7292aa97ea7ad83d45da81d386817eacebbac09`
Upload date	Jun 16, 2019
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/1.13.0 pkginfo/1.5.0.1 requests/2.21.0 setuptools/40.8.0 requests-toolbelt/0.9.1 tqdm/4.19.4 CPython/3.7.3`

Release files / xtea-0.7.1-cp37-cp37m-win_amd64.whl

Download URL	xtea-0.7.1-cp37-cp37m-win_amd64.whl
Size	12.3 kB
Tags	CPython 3.7 CPython 3.7 pymalloc Windows x86-64
SHA-256 checksum How to use checksums	`a24c1aa4bed085d9b35b75ee31790ec71ef2992b8007f7203c0da4911fd31c34`
BLAKE2b-256 checksum How to use checksums	`ce7404336e26549ca8457947273aeb22d12225141fe2175678fb089b0986c2b3`
Upload date	Jun 16, 2019
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/1.13.0 pkginfo/1.5.0.1 requests/2.21.0 setuptools/40.8.0 requests-toolbelt/0.9.1 tqdm/4.19.4 CPython/3.7.3`

Release files / xtea-0.7.1-cp37-cp37m-win32.whl

Download URL	xtea-0.7.1-cp37-cp37m-win32.whl
Size	11.6 kB
Tags	CPython 3.7 CPython 3.7 pymalloc Windows x86-32
SHA-256 checksum How to use checksums	`3a591c8b19732004f8dddafb0dc9d5098d3f650de2df1f2bcf56c0a93e451a96`
BLAKE2b-256 checksum How to use checksums	`491d671ba3b9988c8d65cf8e23a5a013b5a83fcd2955789c70668de6557e0af3`
Upload date	Jun 16, 2019
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/1.13.0 pkginfo/1.5.0.1 requests/2.21.0 setuptools/40.8.0 requests-toolbelt/0.9.1 tqdm/4.19.4 CPython/3.7.3`

Release files / xtea-0.7.1-cp36-cp36m-win_amd64.whl

Download URL	xtea-0.7.1-cp36-cp36m-win_amd64.whl
Size	12.3 kB
Tags	CPython 3.6 CPython 3.6 pymalloc Windows x86-64
SHA-256 checksum How to use checksums	`27b0c0a242318cf72fdc9fc2a257e60bf75ba075861b77fcb7f80e8381615c70`
BLAKE2b-256 checksum How to use checksums	`ef332abea3ac604f109cb16a25befd52504cdf4ad84360e872b7a3531ef271c0`
Upload date	Jun 16, 2019
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/1.13.0 pkginfo/1.5.0.1 requests/2.21.0 setuptools/40.8.0 requests-toolbelt/0.9.1 tqdm/4.19.4 CPython/3.7.3`

Release files / xtea-0.7.1-cp36-cp36m-win32.whl

Download URL	xtea-0.7.1-cp36-cp36m-win32.whl
Size	11.6 kB
Tags	CPython 3.6 CPython 3.6 pymalloc Windows x86-32
SHA-256 checksum How to use checksums	`876e6af9ba01805c08bd4b8ad6346c08889fe6727506f17de15b390e18042ffc`
BLAKE2b-256 checksum How to use checksums	`c900d9bc84b9a08b610fbae6cc76e9dfecfcc408f387271c46998b3165ef424b`
Upload date	Jun 16, 2019
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/1.13.0 pkginfo/1.5.0.1 requests/2.21.0 setuptools/40.8.0 requests-toolbelt/0.9.1 tqdm/4.19.4 CPython/3.7.3`

Release files / xtea-0.7.1-cp35-cp35m-win_amd64.whl

Download URL	xtea-0.7.1-cp35-cp35m-win_amd64.whl
Size	12.3 kB
Tags	CPython 3.5 CPython 3.5 pymalloc Windows x86-64
SHA-256 checksum How to use checksums	`56a6b60898648e27a8c7b2f698672807c9ddd6f22f06915bc459f2de465f1aaa`
BLAKE2b-256 checksum How to use checksums	`0248875c211a9c878d3c8bca93ef937f2e3e060270dc99fbbe903ed969ff6109`
Upload date	Jun 16, 2019
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/1.13.0 pkginfo/1.5.0.1 requests/2.21.0 setuptools/40.8.0 requests-toolbelt/0.9.1 tqdm/4.19.4 CPython/3.7.3`

Release files / xtea-0.7.1-cp35-cp35m-win32.whl

Download URL	xtea-0.7.1-cp35-cp35m-win32.whl
Size	11.6 kB
Tags	CPython 3.5 CPython 3.5 pymalloc Windows x86-32
SHA-256 checksum How to use checksums	`59d00e875ccb441b153e9e9dbcf63421bfb87b8417816a8229936a8f21a4beeb`
BLAKE2b-256 checksum How to use checksums	`8f1ffc70cd46e54de7724603e9f874f85c60789e6248ce31695483ce6db4d2fb`
Upload date	Jun 16, 2019
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/1.13.0 pkginfo/1.5.0.1 requests/2.21.0 setuptools/40.8.0 requests-toolbelt/0.9.1 tqdm/4.19.4 CPython/3.7.3`