IPFYI
RFC 7540 Proposed Standard

Hypertext Transfer Protocol Version 2 (HTTP/2)

M. Belshe, R. Peon, M. Thomson · 2015-05

Abstract

This specification describes an optimized expression of the semantics of the Hypertext Transfer Protocol (HTTP), referred to as HTTP version 2 (HTTP/2). HTTP/2 enables a more efficient use of network resources and a reduced perception of latency by introducing header field compression and allowing multiple concurrent exchanges on the same connection.

Why This RFC Matters

RFC 7540 introduced HTTP/2 with multiplexing, header compression (HPACK), server push, and stream prioritization — eliminating the head-of-line blocking that plagued HTTP/1.1 pipelining and reducing connection overhead substantially. Although HTTP/2 can technically run over plaintext TCP (h2c), all major browsers require TLS encryption (h2), effectively mandating HTTPS for any site wishing to benefit from HTTP/2 performance. This coupling of a performance standard with a security requirement had a measurable positive impact on HTTPS adoption rates across the web.

관련 프로토콜

HTTPS HTTP SSL-TLS TCP

관련 용어

ssl-tls hsts encryption authentication

Security에서 더 보기

RFC 2404 The Use of HMAC-SHA-1-96 within ESP and AH RFC 3602 The AES-CBC Cipher Algorithm and Its Use with IPsec RFC 4253 The Secure Shell (SSH) Transport Layer Protocol RFC 4254 The Secure Shell (SSH) Connection Protocol RFC 4301 Security Architecture for the Internet Protocol RFC 5246 The Transport Layer Security (TLS) Protocol Version 1.2 RFC 5280 Internet X.509 Public Key Infrastructure Certificate and CRL Profile RFC 6125 Representation and Verification of Domain-Based Application Service Identity within Internet Public Key Infrastructure Using X.509 (PKIX) Certificates in the Context of Transport Layer Security (TLS)