PyCryptodome

PyCryptodome is a self-contained Python package of low-level
cryptographic primitives.

It supports Python 2.7, Python 3.7 and newer, and PyPy.

You can install it with::

pip install pycryptodome

All modules are installed under the Crypto package.

Check the pycryptodomex_ project for the equivalent library that
works under the Cryptodome package.

PyCryptodome is a fork of PyCrypto. It brings several enhancements
with respect to the last official version of PyCrypto (2.6.1),
for instance:

Authenticated encryption modes (GCM, CCM, EAX, SIV, OCB, KW, KWP)
Hybrid Public Key Encryption (HPKE)
Accelerated AES on Intel platforms via AES-NI
First class support for PyPy
Elliptic curves cryptography (NIST P-curves; Ed25519, Ed448, Curve25519)
Better and more compact API (nonce and iv attributes for ciphers,
automatic generation of random nonces and IVs, simplified CTR cipher mode,
and more)
SHA-3 (including SHAKE XOFs) and BLAKE2 hash algorithms
Salsa20 and ChaCha20 stream ciphers
scrypt and HKDF
Deterministic (EC)DSA and EdDSA
Password-protected PKCS#8 key containers
Shamir's Secret Sharing scheme
Random numbers get sourced directly from the OS (and not from a CSPRNG in userspace)
Simplified install process, including better support for Windows
Cleaner RSA and DSA key generation (largely based on FIPS 186-4)
Major clean ups and simplification of the code base

PyCryptodome is not a wrapper to a separate C library like OpenSSL.
To the largest possible extent, algorithms are implemented in pure Python.
Only the pieces that are extremely critical to performance (e.g. block ciphers)
are implemented as C extensions.

For more information, see the homepage_.

All the code can be downloaded from GitHub_.

.. _pycryptodomex: https://pypi.python.org/pypi/pycryptodomex
.. _homepage: http://www.pycryptodome.org
.. _GitHub: https://github.com/Legrandin/pycryptodome

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