CryptoHives .NET Foundation

Welcome to the CryptoHives .NET Foundation documentation!

Overview

The CryptoHives .NET Foundation provides libraries for .NET applications focusing on high performance memory management, threading primitives, and cryptographic algorithms.

Available Packages

💾 Memory Package

The Memory package provides allocation-efficient buffer management utilities that leverage ArrayPool<T> and modern .NET memory APIs to minimize garbage collection pressure for transformation pipelines and cryptographic workloads.

Key Features:

  • ArrayPoolMemoryStream and ArrayPoolBufferWriter<T> classes backed by ArrayPool<byte>.Shared
  • Lifetime managed ReadOnlySequence<byte> support with pooled storage
  • ReadOnlySequenceMemoryStream to stream from ReadOnlySequence<byte>
  • ObjectPool backed resource management helpers, e.g. for StringBuilder

Explore Memory Package

🔄 Threading Package

The Threading package provides high-performance async synchronization primitives optimized for low allocation and high throughput scenarios.

Key Features:

  • All waiters implemented as ValueTask-based synchronization primitives with low memory allocation design
  • Built-in Roslyn analyzers to detect common ValueTask misuse patterns at compile time
  • Full CancellationToken support in all Wait/Lock primitives
  • Implementations use IValueTaskSource<T> based classes backed by ObjectPool<T> to avoid allocations by recycling waiter objects
  • Async mutual exclusion with AsyncLock and scoped locking via IDisposable pattern
  • AsyncAutoResetEvent and AsyncManualResetEvent complementing existing implementations which are Task based
  • Replacement for .NET barriers with AsyncBarrier supporting async waits
  • Pooled implementations of AsyncReaderWriterLock, AsyncSemaphore and AsyncCountdownEvent with async wait support
  • Fast path optimizations for uncontended scenarios
  • No allocation design for hot-path code and cancellation tokens (see Benchmarks)
  • Benchmarks comparing performance against existing .NET synchronization primitives and various other popular implementations

Explore Threading Package

🔐 Security.Cryptography Package

The Cryptography package provides specification-based implementations of cryptographic hash algorithms, message authentication codes (MACs), and cipher/AEAD algorithms, all implemented as fully managed code without OS dependencies.

Note: This package continues to expand and already includes hash, MAC, cipher (AES, ChaCha20-family), and AEAD implementations.

Key Features:

  • SHA-1, SHA-2, SHA-3 family implementations with full test vector validation
  • SHAKE and cSHAKE extendable-output functions (XOF) for variable-length output
  • TurboSHAKE and KangarooTwelve (KT128/KT256) high-performance XOFs
  • KMAC (Keccak Message Authentication Code) for authenticated hashing
  • Ascon lightweight hashing (NIST FIPS 207) for constrained environments
  • BLAKE2b, BLAKE2s, and BLAKE3 high-performance hashing with keyed modes
  • Keccak-256, Keccak-384, Keccak-512 for Ethereum compatibility
  • International standards: SM3 (Chinese), Streebog/GOST (Russian), Kupyna/DSTU (Ukrainian), LSH/KS (Korean), Whirlpool (ISO)
  • Legacy algorithms: MD5, SHA-1, RIPEMD-160 (for compatibility only)
  • Aes, Aes-Gcm, Aes-Ccm and ChaCha20-Poly1305 cipher implementations.
  • Cross-platform consistency without OS crypto API dependencies

Explore Security.Cryptography Package

Quick Start

Each package page includes installation, quick-start examples, and API documentation:

  1. Memory Package — pooled buffers and streams
  2. Threading Package — async synchronization primitives
  3. Security.Cryptography Package — hash algorithms and MACs

Platform Support

  • .NET 10.0
  • .NET 8.0
  • .NET Framework 4.6.2
  • .NET Standard 2.1
  • .NET Standard 2.0

Resources

License

This project is licensed under the MIT License. See the LICENSE file for details.

Impressum (Legal Notice)

© 2026 The Keepers of the CryptoHives

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