pycryptodome

Cryptographic library for Python

pycryptodome Permissive license BSD, Public Domain Active ★ 3,250 v3.23.0 released 2025-05-17

Install

pycryptodome on PyPI

pip

pip install pycryptodome

uv

uv add pycryptodome

poetry

poetry add pycryptodome

Package facts

License	BSD, Public Domain (permissive)
Python support	supports the current Python release (!=3.0.,!=3.1.,!=3.2.,!=3.3.,!=3.4.,!=3.5.,!=3.6.*,>=2.7)
Install friction	medium — platform-specific wheel
Runtime dependencies	none
Maintenance	actively maintained — 453 days since the last release
Last repo commit	2026-07-18
First released	2014-06-14
Popularity	one of the top 1,000 most-downloaded packages on PyPI (30-day window, as of 2026-08-13)
Known vulnerabilities	none known (OSV.dev, checked 2026-08-13)

Evidence: pycryptodome-3.23.0-cp27-cp27m-macosx_10_9_x86_64.whl; pycryptodome-3.23.0-cp27-cp27m-manylinux2010_i686.whl; pycryptodome-3.23.0-cp27-cp27m-manylinux2010_x86_64.whl; pycryptodome-3.23.0-cp27-cp27mu-manylinux2010_i686.whl; pycryptodome-3.23.0-cp27-cp27mu-manylinux2010_x86_64.whl; pycryptodome-3.23.0-cp27-cp27m-win32.whl; pycryptodome-3.23.0-cp313-cp313t-macosx_10_13_universal2.whl; pycryptodome-3.23.0-cp313-cp313t-macosx_10_13_x86_64.whl; pycryptodome-3.23.0-cp313-cp313t-manylinux_2_17_aarch64.manylinux2014_aarch64.whl; pycryptodome-3.23.0-cp313-cp313t-manylinux_2_17_x86_64.manylinux2014_x86_64.whl; pycryptodome-3.23.0-cp313-cp313t-manylinux_2_5_i686.manylinux1_i686.manylinux_2_17_i686.manylinux2014_i686.whl; pycryptodome-3.23.0-cp313-cp313t-musllinux_1_2_aarch64.whl; pycryptodome-3.23.0-cp313-cp313t-musllinux_1_2_i686.whl; pycryptodome-3.23.0-cp313-cp313t-musllinux_1_2_x86_64.whl; pycryptodome-3.23.0-cp313-cp313t-win32.whl; pycryptodome-3.23.0-cp313-cp313t-win_amd64.whl; pycryptodome-3.23.0-cp313-cp313t-win_arm64.whl; pycryptodome-3.23.0-cp37-abi3-macosx_10_9_universal2.whl; pycryptodome-3.23.0-cp37-abi3-macosx_10_9_x86_64.whl; pycryptodome-3.23.0-cp37-abi3-manylinux_2_17_aarch64.manylinux2014_aarch64.whl

Development Status :: 5 - Production/StableIntended Audience :: DevelopersLicense :: OSI Approved :: BSD LicenseLicense :: Public DomainOperating System :: MacOS :: MacOS XOperating System :: Microsoft :: WindowsOperating System :: UnixProgramming Language :: Python :: 2Programming Language :: Python :: 2.7Programming Language :: Python :: 3Programming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.7Programming Language :: Python :: 3.8Programming Language :: Python :: 3.9Topic :: Security :: Cryptography

About pycryptodome

from the package's own PyPI description — quoted content, verbatim

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
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