---
id: crypto-cpp-py
version: "2.0.0"
license: unclear
license_treatment: unclear
maintenance: active
---

# crypto-cpp-py — This is a packaged crypto-cpp program

License: unclear · Maintenance: active · Downloads: 117.2K/mo

## What it is and what it does

crypto-cpp-py wraps the crypto-cpp C++ library to expose cryptographic hashing and message signing operations for StarkNet applications in Python. It depends on ecdsa and sympy for elliptic-curve mathematics, plus pywin32 on Windows. The package is distributed as precompiled wheels for Python 3.10+ across a wide range of architectures (x86_64, ARM, PowerPC, s390x, RISC-V) and operating systems, minimizing build friction for most users.

The library is actively maintained and has received recent updates (version 2.0.0 released 2026-04-03) that dropped support for older Python versions and legacy 32-bit architectures. It carries no known security vulnerabilities. However, the unclear license status and minimal community engagement (3 repository stars) mean you should verify licensing terms and community support before adopting it in production.

Use it for:

- Signing and hashing StarkNet transactions or messages within a Python application.
- Building StarkNet wallet or smart-contract interaction libraries that require cryptographic operations.
- Integrating ECDSA-based message authentication into StarkNet-compatible dApps.
- Performing elliptic-curve cryptography operations where sympy and ecdsa alone are insufficient.

## Worth the install?

AI-flagged interpretation of the facts above — verify before relying.

Provides hashing and signing operations for StarkNet messages via a Python wrapper around the crypto-cpp C++ library.

Yes, if you are building for StarkNet and need native cryptographic operations in Python. The package is actively maintained, has no known vulnerabilities, and offers broad platform support via precompiled wheels. However, verify the license terms before use, and be aware that the small community footprint (3 stars) means limited third-party documentation or troubleshooting resources.

## Install

pip install crypto-cpp-py
uv add crypto-cpp-py
poetry add crypto-cpp-py

## Installing crypto-cpp-py

Before you install: Medium install friction due to compiled wheels across many architectures; requires Python 3.10 or later. Actively maintained with recent release (2026-04-03) and no known vulnerabilities. Repository has low star count (3) suggesting limited community visibility.

License in practice: License status is unclear—no SPDX identifier or raw license text provided. Verify the license terms before using in proprietary or GPL-sensitive contexts.

Quickstart:

pip install crypto-cpp-py

from crypto_cpp_py import hash_message, sign_message
hashed = hash_message(b'example')
signature = sign_message(hashed, private_key)

Requires Python 3.10 or later; on Windows, pywin32 is an additional runtime dependency.

Verify before relying:

- What specific cryptographic algorithms (hash functions, signature schemes) are supported beyond ECDSA?
- Are there performance benchmarks or throughput expectations for hashing and signing operations?
- What is the license under which crypto-cpp-py is distributed?

## Package facts

- License: not declared (unclear)
- Python support: supports_current
- Install friction: medium
- Maintenance: active
- Downloads: 117.2K/month (top 15,000 on PyPI)
- Known vulnerabilities: none known

## Tags

starknet cryptography, message signing hashing, ecdsa signing python, crypto-cpp wrapper, starknet message operations, elliptic curve signing, cryptographic hashing library, starknet, elliptic-curve, message-signing

[View on SkillFed](https://skillfed.io/packages/crypto-cpp-py) · [View on PyPI](https://pypi.org/project/crypto-cpp-py/)