---
id: pycryptodomex
version: "3.23.0"
license: BSD, Public Domain
license_treatment: permissive
maintenance: active
---

# pycryptodomex — Cryptographic library for Python

License: permissive · Maintenance: active · Popularity: top 1,000 on PyPI

## Install

pip install pycryptodomex
uv add pycryptodomex
poetry add pycryptodomex

## Description

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 pycryptodomex

All modules are installed under the ``Cryptodome`` package.

Check the pycryptodome_ project for the equivalent library that
works under the ``Crypto`` 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...

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