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Secure Socket Layer Transport Layer Security

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IPsec et l’architecture l architecture TCP/IP<br />

TLS SSL<br />

Physique Cuivre, Fibre Optique, Ondes Radio, ...<br />

<strong>Transport</strong> <strong>Layer</strong> <strong>Security</strong><br />

Protocols<br />

• Connectionless and connection-oriented transport layer<br />

service:<br />

– <strong>Security</strong> Protocol 4 (SP4) – NSA, NIST<br />

– <strong>Transport</strong> <strong>Layer</strong> <strong>Security</strong> (TLSP) – ISO<br />

• Connection-oriented transport layer service:<br />

– Encrypted Session Manager (ESM) – AT&T Bell Labs.<br />

– <strong>Secure</strong> <strong>Socket</strong> <strong>Layer</strong> (SSL) – Netscape Communications<br />

– <strong>Transport</strong> <strong>Layer</strong> <strong>Security</strong> (TLS) – IETF TLS WG<br />

Most popular transport layer security protocols

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