Application-Layer Protocol Negotiation

Abstract: The purpose of this Internet Draft is to continue the discussion on explicit and trusted proxy as intermediary of HTTP2 traffic. The httpbis wg has agreed on the HTTP2 usage with HTTP URIs, with or without TLS, without any constraints from the standard (see: issue 314). To distinguish between an HTTP2 connection meant to transport "https" URIs resources and an HTTP2 connection meant to transport "http" URIs resource, the draft proposes to register a new value in the Application Layer Protocol negotiation (ALPN) Protocol IDs registry specific to signal the usage of HTTP2 to transport "http" URIs resources: h2clr. This document describes two alternative methods for an user-agent to automatically discover and for an user to provide consent for a Trusted Proxy to be securely involved when he or she is requesting an HTTP URI resource over HTTP2 with TLS. The consent is supposed to be per network access. The draft also describes the role of the Trusted Proxy in helping the user to fetch HTTP URIs resource when the user has provided consent to the Trusted Proxy to be involved.

Abstract: This document specifies a new challenge for the Automated Certificate Management Environment (ACME) protocol that allows for domain control validation using TLS.

Abstract: This document specifies two Application Layer Protocol Negotiation (ALPN) labels for use with Web Real-Time Communications (WebRTC). The "webrtc" label identifies regular WebRTC communications: a DTLS session that is used establish keys for Secure Real-time Transport Protocol (SRTP) or to establish data channels using SCTP over DTLS. The "c-webrtc" label describes the same protocol, but the peers also agree to maintain the confidentiality of the media by not sharing it with other applications.

Abstract: Application-Layer Protocol Negotiation (ALPN) labels for Session Traversal Utilities for NAT (STUN) usages, such as Traversal Using Relays around NAT (TURN) and NAT discovery, are defined in this document to allow an application layer to negotiate STUN usages within the Transport Layer Security (TLS) connection. ALPN protocol identifiers defined in this document apply to both TLS and Datagram Transport Layer Security (DTLS).