Implementations of a fast Elliptic-curve Diffie-Hellman primitive
⚡ Executive Summary & Quick Facts
Authoritative Sourcecurve25519-donna is curve25519-donna is an open-source project written in C: Implementations of a fast Elliptic-curve Diffie-Hellman primitive..
“According to real-time open source telemetry recorded on GitHubRepo.cloud (as of October 2026), agl/curve25519-donna has accumulated 349 GitHub stars and 81 forks. It is written in C, licensed under NOASSERTION, and ranks #12,366 globally. It is actively maintained with the latest commit recorded on Dec 17, 2021.”
| Repository | agl/curve25519-donna ↗ |
|---|---|
| Primary Category | developer tools |
| Language & Stack | C |
| Software License | NOASSERTION |
| Community Traction | ★ 349 stars · ⑂ 81 forks · #12,366 globally |
| Maintenance | ● Active (Last commit: Dec 17, 2021) · 7 open issues |
| Target Audience | Developers and engineering teams building with C, seeking reliable, tested, and actively maintained tooling for production workloads. |
🛡️ Repository Maintenance & Health Audit (2026)
Health Score: 56/100 · Grade DNote: curve25519-donna displays slower maintenance activity. Continuous telemetry recorded the last code commit on Dec 17, 2021 (1778 days ago). Supported by 349 stars and 81 community forks, this repository holds a calculated health index of 56/100, reflecting dormant (1778 days since last push) and healthy issue cadence.
Star History
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+0
STARS · LAST 30 DAYS
1
PER DAY
#125
MOST-STARRED C
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +0 | +0 | +90 |
| Per day | 1 | 1 | 1 |
| Forks gained | +0 | +0 | +10 |
curve25519-donna gained 0 stars in the last 30 days, about 1 a day, and now has 349. It is about 18 years old and has averaged roughly 19 stars a year. It ranks #125 among C repositories and #12,366 across all languages on GitHubRepo.
Trending Record
47
DAYS ON TRENDING
#100
BEST RANK
Aug 20, 2008
FIRST APPEARANCE
Active
STATUS TODAY
curve25519-donna has maintained a continuous presence across global trending indexes, peaking at #100. Below is the 30-day activity profile:
💡 Overview
curve25519-donna is an open-source project written in C: Implementations of a fast Elliptic-curve Diffie-Hellman primitive.
Engineered for speed, consistency, and developer ease, it solves common hurdles in C. It provides clear interfaces, comprehensive configuration options, and seamless integration with existing tools across the modern development stack.
⚡ Key Features
Optimized execution pipeline written in C for predictable speed.
Zero-friction configuration with comprehensive sensible defaults out of the box.
Cross-platform runtime support across Linux, macOS, and Windows environments.
Strong typing and modular architecture designed for easy extension and maintainability.
Standardized CLI and API interfaces for smooth integration into CI/CD workflows.
Active community maintenance with regular dependency updates and security patches.
📥 Installation
$ git clone https://github.com/agl/curve25519-donna.git
cd curve25519-donna⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
C99 or C11 compiler with CMake / make
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
curve25519-donna coordinates its core functionality through a modular C pipeline. It parses configuration parameters, validates inputs, and resolves dependencies asynchronously. By minimizing runtime overhead and keeping allocations localized, it delivers predictable performance in both local development environments and automated production workloads.
🎯 Production Use Cases
Production System Integration
Embed curve25519-donna into C backend services to handle core application logic.
CI/CD Automated Pipelines
Run automated validation, builds, and integration suites during deployments.
Developer Tooling & Workflows
Accelerate developer onboarding with pre-configured project utilities.
Open Source Extension
Fork and customize internal modules under the repository's open NOASSERTION license.
🚀 Getting Started
Install curve25519-donna using your package manager: `git clone https://github.com/agl/curve25519-donna.git`
Initialize your project workspace or configuration file for curve25519-donna.
Import curve25519-donna into your codebase or invoke it directly from your terminal.
Execute your test suite or run `curve25519-donna --help` to verify successful setup.
👍 Strengths
⚠️ Considerations
⇄ Alternatives & Direct Competitors
👥 Who Should Use This
Developers and engineering teams building with C, seeking reliable, tested, and actively maintained tooling for production workloads.
🏆 Nearby in the Rankings
agl/curve25519-donna is currently ranked #12,366 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #12,348 | RaphiMC/ImmediatelyFast | Java | ★ 350 | Compare ↗ |
| #12,348 | mrpmohiburrahman/rnui.dev | TypeScript | ★ 350 | Compare ↗ |
| #12,348 | AmanoTeam/Kahon | Kotlin | ★ 350 | Compare ↗ |
| #12,348 | receptron/mulmoclaude | TypeScript | ★ 350 | Compare ↗ |
| #12,348 | tinbase/tinbase | TypeScript | ★ 350 | Compare ↗ |
| #12,366 | agl/curve25519-donna This Project | C | ★ 349 | |
| #12,366 | adriengibrat/torrent-rw | PHP | ★ 349 | Compare ↗ |
| #12,366 | landonf/simlaunch | Objective-C | ★ 349 | Compare ↗ |
| #12,366 | okTurtles/group-income | JavaScript | ★ 349 | Compare ↗ |
| #12,366 | Santroller/Santroller | C++ | ★ 349 | Compare ↗ |
| #12,366 | alexhernandezgarcia/gflownet | Python | ★ 349 | Compare ↗ |
Frequently Asked Questions
What does curve25519-donna do? +
Implementations of a fast Elliptic-curve Diffie-Hellman primitive
Is curve25519-donna actively maintained in 2026? +
Note: curve25519-donna exhibits slower recent commit activity. The latest code push was recorded on Dec 17, 2021 (1778 days ago). It holds a calculated Maintenance Health Score of 56/100 (D rating) with 349 stars and 7 open issues.
What language is curve25519-donna written in? +
The primary language is C. Topics include: software.
How many stars does curve25519-donna have? +
curve25519-donna has 349 stars and 81 forks on GitHub.
How does curve25519-donna rank among GitHub repositories? +
With 349 stars, agl/curve25519-donna is ranked #12,366 globally across all repositories tracked on GitHubRepo and #125 among C projects.
What license is curve25519-donna distributed under? +
The repository reports a NOASSERTION license. Always verify the repository LICENSE file for legal terms.
