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

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

    Server 2008 R2 Server 2012: Disabled by default Yes Yes Disabled by default [n 24] [64] Disabled by default [n 24] [64] No Yes Yes Yes Mitigated Not affected Vulnerable Lowest priority [65] [n 25] Mitigated [60] Mitigated [61] Yes [n 10] Internet Explorer 11 [n 20] Windows Schannel: 11 [n 26] [67] 7, 8.1 Server 2008 R2 Server 2012 [67] Server ...

  3. 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.

  4. Transport Layer Security - Wikipedia

    en.wikipedia.org/wiki/Transport_Layer_Security

    Users of Internet Explorer (prior to version 11) that run on older versions of Windows (Windows 7, Windows 8 and Windows Server 2008 R2) can restrict use of TLS to 1.1 or higher. Apple fixed BEAST vulnerability by implementing 1/n-1 split and turning it on by default in OS X Mavericks, released on October 22, 2013. [124]

  5. Opportunistic TLS - Wikipedia

    en.wikipedia.org/wiki/Opportunistic_TLS

    The style used to specify how to use TLS matches the same layer distinction that is also conveniently supported by several library implementations of TLS. E.g., the RFC 3207 SMTP extension illustrates with the following dialog how a client and server can start a secure session: [3]

  6. Datagram Transport Layer Security - Wikipedia

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

    Cisco AnyConnect VPN Client uses TLS and invented DTLS-based VPN. [34] OpenConnect is an open source AnyConnect-compatible client and ocserv server that supports (D)TLS. [35] Cisco InterCloud Fabric uses DTLS to form a tunnel between private and public/provider compute environments. [36]

  7. Cipher suite - Wikipedia

    en.wikipedia.org/wiki/Cipher_suite

    TLS 1.3 includes a TLS Handshake Protocol that differs compared to past and the current version of TLS/SSL. After coordinating which cipher suite to use, the server and the client still have the ability to change the coordinated ciphers by using the ChangeCipherSpec protocol in the current handshake or in a new handshake.

  8. OCSP stapling - Wikipedia

    en.wikipedia.org/wiki/OCSP_stapling

    RFC 6961 defines a Multiple Certificate Status Request extension, which allows a server to send multiple OCSP responses in the TLS handshake. A draft proposal for an X509v3 extension field, which expired in April 2013, specified that a compliant server presenting a certificate carrying the extension must return a valid OCSP token in its ...

  9. 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.