ed25519-blake2b-fork

What it is and what it does

This package wraps a C implementation of Ed25519 digital signatures, modified to use BLAKE2b as the hash algorithm instead of SHA512. It allows you to create signing and verifying keypairs, sign messages deterministically, and verify signatures. The underlying C code is from the SUPERCOP benchmark suite and is in the public domain; the Python binding is MIT-licensed.

The package is designed for systems like NANO that require Ed25519 signatures with BLAKE2b hashing. Keys and signatures are compact (32 bytes for keys, 64 bytes for signatures), and operations complete in milliseconds. It provides both binary and ASCII-encoded (base64, base32, base16, hex) interfaces for keys and signatures, making it easy to serialize and transmit them.

Use it for:

• Sign and verify messages in NANO or other systems that require Ed25519 with BLAKE2b hashing.
• Generate and manage Ed25519 keypairs for cryptographic protocols that need deterministic signatures.
• Serialize public keys and signatures to ASCII formats for storage in JSON, configuration files, or over text-based protocols.
• Derive signing keys from existing secrets by providing a 32-byte seed.
• Verify message authenticity in distributed systems or peer-to-peer applications.

Worth the install?

AI-flagged interpretation of the facts on this page — verify before relying

Provides Python bindings to Ed25519 digital signatures using BLAKE2b instead of SHA512, enabling signature creation and verification compatible with NANO and similar systems.

Yes, if you need Ed25519 signatures with BLAKE2b for NANO or a compatible system. The package is actively maintained, has no known vulnerabilities, and uses a permissive license. Install friction is moderate due to C compilation, but prebuilt wheels cover common platforms. Verify that this fork is the recommended version for your use case, as the repository has minimal visibility (1 star).

Install

ed25519-blake2b-fork on PyPI

pip install ed25519-blake2b-fork

uv add ed25519-blake2b-fork

poetry add ed25519-blake2b-fork

Installing ed25519-blake2b-fork

Before you install

Medium install friction due to C compilation requirement, but prebuilt wheels are available for common platforms (Python 3.10–3.11 on macOS, Linux, Windows, and musl). Repository is active with a recent commit.

License in practice

Permissive license (MIT) allows commercial and private use with minimal restrictions; no copyleft obligations.

Quickstart

pip install ed25519-blake2b-fork

import ed25519_blake2b
signing_key, verifying_key = ed25519_blake2b.create_keypair()
sig = signing_key.sign(b"hello world", encoding="base64")
verifying_key.verify(sig, b"hello world", encoding="base64")

Requires a C compiler if building from source; prebuilt wheels available for Python 3.10–3.11 on major platforms.

Verify before relying

• Whether the package is actively maintained beyond the single recent commit shown; repository shows only 1 star.
• Whether BLAKE2b fork maintains full Ed25519 security properties or introduces any cryptographic differences from the original.
• Current status of the upstream python-ed25519-blake2b repository and whether this fork is the recommended version.

Package facts

Evidence: ed25519_blake2b_fork-1.4.2-cp310-cp310-macosx_10_9_x86_64.whl; ed25519_blake2b_fork-1.4.2-cp310-cp310-macosx_11_0_arm64.whl; ed25519_blake2b_fork-1.4.2-cp310-cp310-manylinux2014_aarch64.manylinux_2_17_aarch64.manylinux_2_28_aarch64.whl; ed25519_blake2b_fork-1.4.2-cp310-cp310-manylinux2014_ppc64le.manylinux_2_17_ppc64le.manylinux_2_28_ppc64le.whl; ed25519_blake2b_fork-1.4.2-cp310-cp310-manylinux2014_x86_64.manylinux_2_17_x86_64.manylinux_2_28_x86_64.whl; ed25519_blake2b_fork-1.4.2-cp310-cp310-musllinux_1_2_aarch64.whl; ed25519_blake2b_fork-1.4.2-cp310-cp310-musllinux_1_2_ppc64le.whl; ed25519_blake2b_fork-1.4.2-cp310-cp310-musllinux_1_2_x86_64.whl; ed25519_blake2b_fork-1.4.2-cp310-cp310-win32.whl; ed25519_blake2b_fork-1.4.2-cp310-cp310-win_amd64.whl; ed25519_blake2b_fork-1.4.2-cp311-cp311-macosx_10_9_x86_64.whl; ed25519_blake2b_fork-1.4.2-cp311-cp311-macosx_11_0_arm64.whl; ed25519_blake2b_fork-1.4.2-cp311-cp311-manylinux2014_aarch64.manylinux_2_17_aarch64.manylinux_2_28_aarch64.whl; ed25519_blake2b_fork-1.4.2-cp311-cp311-manylinux2014_ppc64le.manylinux_2_17_ppc64le.manylinux_2_28_ppc64le.whl; ed25519_blake2b_fork-1.4.2-cp311-cp311-manylinux2014_x86_64.manylinux_2_17_x86_64.manylinux_2_28_x86_64.whl; ed25519_blake2b_fork-1.4.2-cp311-cp311-musllinux_1_2_aarch64.whl; ed25519_blake2b_fork-1.4.2-cp311-cp311-musllinux_1_2_ppc64le.whl; ed25519_blake2b_fork-1.4.2-cp311-cp311-musllinux_1_2_x86_64.whl; ed25519_blake2b_fork-1.4.2-cp311-cp311-win32.whl; ed25519_blake2b_fork-1.4.2-cp311-cp311-win_amd64.whl

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