Comparer des méthodes

	Analyse du protocole TLS	Échange de clés Diffie-Hellman
Domaine	Cryptographie	Cryptographie
Famille	Process / pipeline	Process / pipeline
Année d'origine	1994	1976
Auteur d'origine	Netscape Communications Corporation, IETF	Whitfield Diffie, Martin Hellman
Type	Cryptographic transport protocol	Asymmetric key exchange algorithm
Source fondatrice	Rescorla, E. (2018). The Transport Layer Security (TLS) Protocol Version 1.3. RFC 8446.	Diffie, W., & Hellman, M. E. (1976). New directions in cryptography. IEEE Transactions on Information Theory, 22(6), 644–654.
Alias	TLS/SSL Protocol, HTTPS Security, Secure Transport Layer	DH Key Exchange, Diffie-Hellman Key Agreement
Apparentées	4	4
Résumé	The Transport Layer Security (TLS) protocol is the cryptographic standard that secures web communication and email transmission. Evolved from SSL (Secure Sockets Layer), TLS provides authentication, encryption, and integrity protection for data in transit. The protocol combines public-key cryptography (RSA, ECDH) for key agreement, symmetric encryption (AES) for bulk data, and digital signatures (SHA-256) for authentication.	The Diffie-Hellman key exchange, invented by Whitfield Diffie and Martin Hellman in 1976, is a foundational protocol for establishing a shared secret over an insecure communication channel. Two parties who have never previously communicated can use Diffie-Hellman to agree on a symmetric encryption key that an eavesdropper cannot easily derive, even after observing all public exchanges.