PyCrypto alternatives and similar packages
Based on the "Cryptography" category.
Alternatively, view PyCrypto alternatives based on common mentions on social networks and blogs.
-
cryptography
cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. -
Themis
Easy to use cryptographic framework for data protection: secure messaging with forward secrecy and secure data storage. Has unified APIs across 14 platforms. -
pyOpenSSL -- A Python wrapper around the OpenSSL library
A Python wrapper around the OpenSSL library -
hashids
Implementation of hashids (http://hashids.org) in Python. Compatible with Python 2 and Python 3 -
PyNacl
Python binding to the Networking and Cryptography (NaCl) library -
ContentHash for Python
Python implementation of EIP 1577 content hash -
HashLib4Python-CPPWrapper
HashLib4Python is a cython wrapper around HashLib4CPP library that provides an easy to use interface for computing hashes and checksums of strings, files and bytearrays.
Access the most powerful time series database as a service
* Code Quality Rankings and insights are calculated and provided by Lumnify.
They vary from L1 to L5 with "L5" being the highest.
Do you think we are missing an alternative of PyCrypto or a related project?
README
⚠️ WARNING |
---|
PyCrypto 2.x is unmaintained, obsolete, and contains security vulnerabilities. See https://www.pycrypto.org/ for details. The following is provided for historical/reference purposes only. |
<!--
If that site is no longer available, you can also look at index.md
in the
www.pycrypto.org
branch of this repository. The old generated docs and
mailing list archive can also be found there.
-->
Python Cryptography Toolkit (pycrypto)
This is a collection of both secure hash functions (such as SHA256 and
RIPEMD160), and various encryption algorithms (AES, DES, RSA, ElGamal,
etc.). The package is structured to make adding new modules easy.
This section is essentially complete, and the software interface will
almost certainly not change in an incompatible way in the future; all
that remains to be done is to fix any bugs that show up. If you
encounter a bug, please report it in the GitHub issue tracker at
https://github.com/dlitz/pycrypto/issues
An example usage of the SHA256 module is:
>>> from Crypto.Hash import SHA256
>>> hash = SHA256.new()
>>> hash.update('message')
>>> hash.digest()
'\xabS\n\x13\xe4Y\x14\x98+y\xf9\xb7\xe3\xfb\xa9\x94\xcf\xd1\xf3\xfb"\xf7\x1c\xea\x1a\xfb\xf0+F\x0cm\x1d'
An example usage of an encryption algorithm (AES, in this case) is:
>>> from Crypto.Cipher import AES
>>> obj = AES.new('This is a key123', AES.MODE_CBC, 'This is an IV456')
>>> message = "The answer is no"
>>> ciphertext = obj.encrypt(message)
>>> ciphertext
'\xd6\x83\x8dd!VT\x92\xaa`A\x05\xe0\x9b\x8b\xf1'
>>> obj2 = AES.new('This is a key123', AES.MODE_CBC, 'This is an IV456')
>>> obj2.decrypt(ciphertext)
'The answer is no'
One possible application of the modules is writing secure administration tools. Another application is in writing daemons and servers. Clients and servers can encrypt the data being exchanged and mutually authenticate themselves; daemons can encrypt private data for added security. Python also provides a pleasant framework for prototyping and experimentation with cryptographic algorithms; thanks to its arbitrary-length integers, public key algorithms are easily implemented.
As of PyCrypto 2.1.0, PyCrypto provides an easy-to-use random number generator:
>>> from Crypto import Random
>>> rndfile = Random.new()
>>> rndfile.read(16)
'\xf7.\x838{\x85\xa0\xd3>#}\xc6\xc2jJU'
A stronger version of Python's standard "random" module is also provided:
>>> from Crypto.Random import random
>>> random.choice(['dogs', 'cats', 'bears'])
'bears'
Caveat: For the random number generator to work correctly, you must call Random.atfork() in both the parent and child processes after using os.fork()
Installation
PyCrypto is written and tested using Python version 2.1 through 3.3. Python 1.5.2 is not supported.
The modules are packaged using the Distutils, so you can simply run
python setup.py build
to build the package, and "python setup.py
install" to install it.
Linux installation requires the Python developer tools to be installed. These
can be found in the python-dev
package on Debian/Ubuntu and the
python2-devel
package on Red Hat/Fedora. If you are using a non-standard
Python version for your distribution, you may require a different package.
Consult your package manager's documentation for instructions on how to
install these packages. Other distributions may have different package names.
To verify that everything is in order, run python setup.py test
. It
will test all the cryptographic modules, skipping ones that aren't
available. If the test script reports an error on your machine,
please report the bug using the bug tracker (URL given above). If
possible, track down the bug and include a patch that fixes it,
provided that you are able to meet the eligibility requirements at
[https://www.pycrypto.org/submission-requirements/].
It is possible to test a single sub-package or a single module only, for instance
when you investigate why certain tests fail and don't want to run the whole
suite each time. Use python setup.py test --module=name
, where 'name'
is either a sub-package (Cipher, PublicKey, etc) or a module (Cipher.DES,
PublicKey.RSA, etc).
To further cut test coverage, pass also the option --skip-slow-tests
.
To install the package under the site-packages directory of
your Python installation, run python setup.py install
.
If you have any comments, corrections, or improvements for this package, please report them to our mailing list, accessible via the PyCrypto website:
https://www.pycrypto.org/ https://www.dlitz.net/software/pycrypto/