Overview#Quick UDP Internet Connections (QUIC) supports a set of multiplexed connections between two endpoints over User Datagram Protocol (UDP), and was designed to provide security protection equivalent to TLS/SSL
Quick UDP Internet Connections (QUIC) is defined in QUIC- A UDP-Based Multiplexed and Secure Transport
Quick UDP Internet Connections is a multiplexed and secure transport protocol that runs on top of UDP. QUIC aims to provide a flexible set of features that allow it to be a general-purpose transport for multiple applications.
Quick UDP Internet Connections uses UDP as substrate so as to not require changes to legacy client Operating Systems and middleboxes to be deployable.
Quick UDP Internet Connections authenticates all of its headers and encrypts most of the data it exchanges, including its signaling. This allows the protocol to evolve without incurring a dependency on upgrades to middleboxes. QUIC- A UDP-Based Multiplexed and Secure Transport document describes the core QUIC protocol, including the conceptual design, wire format, and mechanisms of the QUIC protocol for connection establishment, stream multiplexing, stream and connection-level flow control, and data reliability.