smaj-kyber 0.1.3

Kyber KEM wrapper using ctypes and platform-specific dynamic libraries

smaj_kyber

smaj_kyber is a Python package that wraps the Kyber post-quantum Key Encapsulation Mechanism (KEM) using Python’s ctypes and a compiled C shared library.

✅ This implementation is a lightweight wrapper around the C reference implementation of Kyber submitted to NIST as part of the Post-Quantum Cryptography standardization process.

⚠️ This package is created strictly for research and educational purposes. It is not audited or recommended for production use.

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Features

• ✅ Bindings to the C reference implementation
• ✅ Support for Kyber512, Kyber768, and Kyber1024
• ✅ No need for C++ or pybind11 — pure ctypes usage
• ✅ Easy to switch modes inside Python code
• ✅ Cross platform Linux, Windows , macOS

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Usage Example

from smaj_kyber import keygen, encapsulate, decapsulate, set_mode

# Set mode: "512", "768", or "1024"
set_mode("512")

# Bob generates a keypair
pk, sk = keygen()

# Alice uses pk to encapsulate a shared secret
ct, ss1 = encapsulate(pk)

# Bob uses his sk to decapsulate and derive the same shared secret
ss2 = decapsulate(ct, sk)

print("Shared secret 1:", ss1.hex())
print("Shared secret 2:", ss2.hex())
print("Match:", ss1 == ss2)