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The requested resource is available only through a proxy, the address for which is provided in the response. For security reasons, many HTTP clients (such as Mozilla Firefox and Internet Explorer) do not obey this status code. [10] 306 Switch Proxy No longer used. Originally meant "Subsequent requests should use the specified proxy."
Decompression failure fatal: 40 Handshake failure fatal: 41 No certificate warning/fatal: SSL 3.0 only, reserved 42 Bad certificate warning/fatal: 43 Unsupported certificate warning/fatal: e.g. certificate has only server authentication usage enabled and is presented as a client certificate 44 Certificate revoked warning/fatal: 45 Certificate ...
During the TLS handshake the server and the client establish session keys (symmetric keys, used for the duration of a given session), but the encryption and signature of the TLS handshake messages itself is done using asymmetric keys, which requires more computational power than the symmetric cryptography used for the encryption/decryption of ...
This is a trade-off between security and availability: failing-soft allows downgrade attacks, while failing-hard allows denial of service (from attacks) or causes unavailability. [ 18 ] An attacker with the ability to present a compromised certificate likely also has the ability to prevent the client performing an online revocation status check ...
Qualys SSL Labs' SSL Server Test [163] which not only looks for the Heartbleed bug, but can also find other SSL/TLS implementation errors. Browser extensions, such as Chromebleed [164] and FoxBleed [165] SSL Diagnos [166] CrowdStrike Heartbleed Scanner [167] – Scans routers, printers and other devices connected inside a network including ...
The server communicates the HPKP policy to the user agent via an HTTP response header field named Public-Key-Pins (or Public-Key-Pins-Report-Only for reporting-only purposes).
The reason certificate authorities can charge a premium for SGC certificates is that browsers only allowed a limited number of roots to support SGC. When an SSL handshake takes place, the software (e.g. a web browser) would list the ciphers that it supports. Although the weaker exported browsers would only include weaker ciphers in its initial ...
When creating a handshake, the client could send an incorrectly formatted ClientHello message, leading to OpenSSL parsing more than the end of the message. Assigned the identifier CVE-2011-0014 by the CVE project, this affected all OpenSSL versions 0.9.8h to 0.9.8q and OpenSSL 1.0.0 to 1.0.0c.