# Package com.southernstorm.noise.crypto.chacha20

ChaCha20 stream cipher primitive for Noise protocol framework, moved from router to core in 0.9.39.

See: Description

- Class Summary
  Class | Description
  --- | ---
  ChaChaCore | Implementation of the ChaCha20 core hash transformation.

## Package com.southernstorm.noise.crypto.chacha20 Description

ChaCha20 stream cipher primitive for Noise protocol framework, moved from router to core in 0.9.39.

This package provides:

- ChaCha20 stream cipher implementation
- High-performance symmetric encryption
- Integration with Noise protocol framework
- Secure key scheduling and state management

ChaCha20 is a modern stream cipher that provides excellent performance and security. It's used in I2P's Noise protocol implementations for secure key exchange and encrypted transport communications. Moved to core to make it available across I2P components.

Since 0.9.39.