Legrandin/pycryptodome

Health v2 · maintenance only

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Adoption not part of the score

3261 stars · 568 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

PyCryptodome is a self-contained Python package of low-level cryptographic primitives, forked from PyCrypto with an almost drop-in compatible API. It implements symmetric ciphers, authenticated encryption modes, hashes, MACs, key derivation, and asymmetric cryptography in C extensions without wrapping an external crypto library.

Use cases

• encrypt and decrypt data with AES in Python
• generate RSA or ECC key pairs
• sign and verify digital signatures
• compute SHA-3 or BLAKE2 hashes
• replace the old PyCrypto library
• do authenticated encryption with GCM or ChaCha20-Poly1305
• derive keys with PBKDF2 or scrypt
• implement HPKE encryption

When to choose

• you need low-level cryptographic primitives in Python with no external C library dependency
• you are migrating legacy code from PyCrypto
• you need modern algorithms like Ed25519, XChaCha20, SHA-3, or HPKE
• you need PyPy support for crypto workloads

When to avoid

• you want a high-level, misuse-resistant API rather than raw primitives
• you prefer a library wrapping OpenSSL like pyca/cryptography
• you need FIPS-validated cryptography

Facets

library · maturity active

cryptography security sdk security developer-tools privacy python cross-platform windows pycrypto-fork aes rsa ecc sha-3 authenticated-encryption chacha20 ed25519 hpke self-contained linux macos

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