hpenc 3.0 High-performance command-line tool for stream encryption

Hpenc is a command-line tool for performing authenticated encryption (AES-GCM and ChaCha20-Poly1305) of streaming data. It does not perform an asymmetric key exchange, instead requiring the user to distribute pre-shared keys out of band. It is designed to handle large amounts of data quickly by using all your CPU cores and hardware acceleration.