LibSodium.Net
Modern Cryptography for .NET
Welcome to LibSodium.Net, the secure and developer-friendly .NET bindings for libsodium — a battle-tested, modern cryptographic library used around the world.
Whether you're building web services, desktop apps, IoT devices, or cross-platform tools, LibSodium.Net helps you add robust, efficient, and secure cryptographic functionality with confidence.
✨ Simple, Powerful, and Secure
- Built on the trusted libsodium C library.
- Designed for modern .NET: efficient memory handling via
Span<T>, support for AOT viaLibraryImport. - Safe-by-default APIs that help you do cryptography right.
- Includes secure memory utilities, symmetric and asymmetric encryption, hashing, key derivation, and more.
🌊 First-Class Streaming Encryption
LibSodium.Net provides idiomatic support for large file and streaming authenticated encryption using libsodium’s XChaCha20-Poly1305.
Powered by the SecretStream API, you can securely encrypt and decrypt files of any size with tamper-detection and zero nonce reuse risk — all in a few lines of code.
🚀 Get Started
Install the NuGet package:
dotnet add package LibSodium.Net
Then head over to our Guide to learn how to:
- Encrypt and decrypt data securely
- Generate cryptographic keys
- Work with secure memory
- Handle errors properly and safely
📄 Reference Documentation
Need details on specific APIs? Browse the full Reference Documentation to explore everything from SecretBox and SecureMemory<T> to stream encryption and key generation helpers.