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  2. Version history for TLS/SSL support in web browsers

    en.wikipedia.org/wiki/Version_history_for_TLS/...

    TLS 1.1 (deprecated) TLS 1.2 TLS 1.3 EV certificate SHA-2 certificate ECDSA certificate BEAST CRIME POODLE (SSLv3) RC4 FREAK Logjam Protocol selection by user Microsoft Internet Explorer (1–10) [n 20] Windows Schannel: 1.x: Windows 3.1, 95, NT, [n 21] [n 22] Mac OS 7, 8: No SSL/TLS support 2: Yes No No No No No No No No No SSL 3.0 or TLS ...

  3. Opportunistic TLS - Wikipedia

    en.wikipedia.org/wiki/Opportunistic_TLS

    Opportunistic TLS (Transport Layer Security) refers to extensions in plain text communication protocols, which offer a way to upgrade a plain text connection to an encrypted (TLS or SSL) connection instead of using a separate port for encrypted communication. Several protocols use a command named "STARTTLS" or "Explicit TLS" for this

  4. Transport Layer Security - Wikipedia

    en.wikipedia.org/wiki/Transport_Layer_Security

    Transport Layer Security (TLS) is a cryptographic protocol designed to provide communications security over a computer network, such as the Internet.The protocol is widely used in applications such as email, instant messaging, and voice over IP, but its use in securing HTTPS remains the most publicly visible.

  5. HTTP Strict Transport Security - Wikipedia

    en.wikipedia.org/wiki/HTTP_Strict_Transport_Security

    HSTS addresses this problem [2]: §2.4 by informing the browser that connections to the site should always use TLS/SSL. The HSTS header can be stripped by the attacker if this is the user's first visit. Google Chrome, Mozilla Firefox, Internet Explorer, and Microsoft Edge attempt to limit this problem by including a "pre-loaded" list of HSTS sites.

  6. High Assurance Internet Protocol Encryptor - Wikipedia

    en.wikipedia.org/wiki/High_Assurance_Internet...

    Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Unsourced material may be challenged and removed. Find sources: "High Assurance Internet Protocol Encryptor" – news · newspapers · books · scholar · JSTOR ( February 2008 ) ( Learn how and when to remove this message )

  7. Comparison of TLS implementations - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_TLS...

    The publishing of TLS 1.3 and DTLS 1.3 obsoleted TLS 1.2 and DTLS 1.2. Note that there are known vulnerabilities in SSL 2.0 and SSL 3.0. In 2021, IETF published RFC 8996 also forbidding negotiation of TLS 1.0, TLS 1.1, and DTLS 1.0 due to known vulnerabilities. NIST SP 800-52 requires support of TLS 1.3 by January 2024.

  8. Application-Layer Protocol Negotiation - Wikipedia

    en.wikipedia.org/wiki/Application-Layer_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.

  9. Datagram Transport Layer Security - Wikipedia

    en.wikipedia.org/wiki/Datagram_Transport_Layer...

    There is no DTLS 1.1 because this version-number was skipped in order to harmonize version numbers with TLS. [2] Like previous DTLS versions, DTLS 1.3 is intended to provide "equivalent security guarantees [to TLS 1.3] with the exception of order protection/non-replayability". [11]