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Everything about Application-Layer Protocol Negotiation

Feature of the TLS network security protocol

Application-Layer Protocol Negotiation (ALPN) is a Transport Layer Security (TLS) extension that allows the application layer to negotiate which protocol should be performed over a secure connection in a manner that avoids additional round trips and which is independent of the application-layer protocols. It is used to establish HTTP/2 connections without additional round trips. Wikipedia →

đź§­ Start here: a 6-step reading path

  1. Read the overview: Application-Layer Protocol NegotiationA 5-minute orientation
  2. Pick up a classic book: The Conspirators HierarchyThe most-reprinted book on the subject
  3. Go sideways: Transport Layer SecurityA closely related topic
  4. Go sideways: SPDYA closely related topic

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