HTTP Working GroupM. Nottingham
Internet-DraftM. Thomson
Intended status: ExperimentalMozilla
Expires: December 2, 2016May 31, 2016

dating coach movie online Opportunistic Security for HTTP

draft-ietf-httpbis-http2-encryption-05

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partnervermittlung ulm umgebung veranstaltungen This document describes how kostenlos job inserieren wien http URIs can be accessed using Transport Layer Security (TLS) to mitigate pervasive monitoring attacks.neue email adresse erstellen hotmail kostenlos

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singlebörse kostenlos konstanz This document describes a use of HTTP Alternative Services [RFC7838] to decouple the URI scheme from the use and configuration of underlying encryption, allowing a singleboerse kostenlos xp http URI [RFC7230] to be accessed using Transport Layer Security (TLS) [RFC5246] opportunistically.free dating site in cyprus

singlebörse kostenlos köln Serving free arabian dating sites https URIs require acquiring and configuring a valid certificate, which means that some deployments find supporting TLS difficult. This document describes a usage model whereby sites can serve chat with local singles for free http URIs over TLS without being required to support strong server authentication.free online dating sites cyprus

partnersuche namibia oktober Opportunistic Security [RFC7435] does not provide the same guarantees as using TLS with chat with local singles for free on the phone https URIs; it is vulnerable to active attacks, and does not change the security context of the connection. Normally, users will not be able to tell that it is in use (i.e., there will be no “lock icon”).whatsapp runterladen kostenlos pc

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cougar singlebörse kostenlos A secondary goal is to limit the potential for active attacks. It is not intended to offer the same level of protection as afforded to single forum kostenlos vergleich https URIs, but instead to increase the likelihood that an active attack can be detected.free online dating in cyprus

singlebörse kostenlos chemnitz A final (but significant) goal is to provide for ease of implementation, deployment and operation. This mechanism is expected to have a minimal impact upon performance, and require a trivial administrative effort to configure.online dating site in cyprus

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singlebörse kostenlos.ch The key words “MUST”, “MUST NOT”, “REQUIRED”, “SHALL”, “SHALL NOT”, “SHOULD”, “SHOULD NOT”, “RECOMMENDED”, “MAY”, and “OPTIONAL” in this document are to be interpreted as described in [RFC2119].inserat kostenlos österreich

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singlebörse kostenlos cottbus An origin server that supports the resolution of single forum kostenlos werbefrei http URIs can indicate support for this specification by providing an alternative service advertisement [RFC7838] for a protocol identifier that uses TLS, such as partnersuche namibia reisen h2 [RFC7540].haus inserieren kostenlos österreich

chinesische singlebörse kostenlos A client that receives such an advertisement MAY make future requests intended for the associated origin ([RFC6454]) to the identified service (as specified by [RFC7838]).auto kostenlos inserieren österreich

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singlebörse kostenlos chat A client can also explicitly probe for an alternative service advertisement by sending a request that bears little or no sensitive information, such as one with the OPTIONS method. Likewise, clients with existing alternative services information could make such a request before they expire, in order minimize the delays that might be incurred.pension kostenlos inserieren

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single forum kostenlos online [RFC7838] requires that an alternative service only be used when there are “reasonable assurances” that it is under control of and valid for the whole origin.gebrauchte reifen kostenlos inserieren

partnersuche namibia youtube As defined in that specification, a client can establish reasonable assurances when using a TLS-based protocol with the certificate checks defined in [RFC2818].stellenanzeigen kostenlos inserieren berlin

singlebörse kostenlos anmelden For the purposes of this specification, an additional way of establishing reasonable assurances is available when the alternative is on the same host as the origin, using the “http-opportunistic” well-known URI defined in kostenlos stellen inserieren.jobs stellenanzeigen kostenlos inserieren

singlebörse kostenlos ab 18 This allows deployment without the use of valid certificates, to encourage deployment of opportunistic security. When it is in use, the alternative service can provide any certificate, or even select TLS cipher suites that do not include authentication.anzeige aufgeben kostenlos kleinanzeigen inserieren

singleborse kostenlos ab 45 When a client has a valid http-opportunistic response for an origin (as per kostenlos inserieren ebay kleinanzeigen), it MAY consider there to be reasonable assurances as long as:partnervermittlung friedrich bonn

singlebörse kostenlos ab 14 For example, this request/response pair would constitute reasonable assurances for the origin “http://www.example.com” for an alternative service on port 443 or 8000 of the host “www.example.com”:wohnung kostenlos inserieren meine stadt

GET /.well-known/http-opportunistic HTTP/1.1
Host: www.example.com

HTTP/1.1 200 OK
Content-Type: application/json
Connection: close

{
  "http://www.example.com": {
    "tls-ports": [443, 8000]
  }
}

singlebörse kostenlos alleinerziehend Note that this mechanism is only defined to establish reasonable assurances for the purposes of this specification; it does not apply to other uses of alternative services unless they explicitly invoke it.kostenlos wohnung inserieren mannheim

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singlebörse kostenlos ab 16 Since singlebörse kostenlos wien https URIs rely on server authentication, a connection that is initially created for singlebörse kostenlos wiesbaden http URIs without authenticating the server cannot be used for singlebörse kostenlos weltweit https URIs until the server certificate is successfully authenticated. Section 3.1 of [RFC2818] describes the basic mechanism, though the authentication considerations in Section 2.1 of [RFC7838] also apply.wohnung kostenlos inserieren berlin

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gebrauchtwagen inserieren kostenlos österreich Even when the alternative service is strongly authenticated, opportunistically upgrading cleartext HTTP connections to use TLS is subject to active attacks. In particular:muslim free dating site usa

job inserate kostenlos österreich Given that the primary goal of this specification is to prevent passive attacks, these are not critical failings (especially considering the alternative - HTTP over cleartext). However, a modest form of protection against active attacks can be provided for clients on subsequent connections.wohnung kostenlos inserieren münchen

inserat aufgeben kostenlos österreich When an origin is able to commit to providing service for a particular origin over TLS for a bounded period of time, clients can choose to rely upon its availability, failing when it cannot be contacted. Effectively, this makes the choice to use a secured protocol “sticky”.kostenlos jobs inserieren

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inserieren kostenlos österreich An origin can reduce the risk of attacks on opportunistically secured connections by committing to provide a secured, authenticated alternative service. This is done by including the optional singlebörse kostenlos wolfsburg tls-commit member in the origin object of the http-opportunistic well-known response (see free online dating sites ontario).100 free dating sites in united kingdom

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online dating coach nyc The value of the singlebörse wuppertal kostenlos tls-commit member is a number ([RFC7159], Section 6) indicating the duration of the commitment interval in seconds.free single muslim dating uk

{
  "http://www.example.com": {
    "tls-ports": [443,8080],
    "tls-commit": 3600
  }
}

partnersuche namibia urlaub Including singlebörse kostenlos würzburg tls-commit creates a commitment to provide a secured alternative service for the advertised period. Clients that receive this commitment can assume that a secured alternative service will be available for the indicated period. Clients might however choose to limit this time (see free online muslim dating uk).partnervermittlung gratis schweiz gratis

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free new dating sites in canada The value of the wohnung kostenlos inserieren dresden tls-commit member MUST be ignored unless the alternative service can be strongly authenticated. The same authentication requirements that apply to online dating coach dallas https:// resources SHOULD be applied to authenticating the alternative. Minimum authentication requirements for HTTP over TLS are described in Section 2.1 of [RFC7838] and Section 3.1 of [RFC2818]. As noted in [RFC7838], clients can impose other checks in addition to this minimum set. For instance, a client might choose to apply key pinning [RFC7469].100 free no subscription dating sites

polish dating sites uk A client that receives a commitment and that successfully authenticates the alternative service can assume that a secured alternative will remain available for the commitment interval. The commitment interval starts when the commitment is received and authenticated and runs for a number of seconds equal to value of the online dating coach laurie davis tls-commit member, less the current age of the http-opportunistic response (as defined in Section 4.2.3 of [RFC7234]). Note that the commitment interval MAY exceed the freshness lifetime of the “http-opportunistic” resource.free no subscription dating sites in south africa

polish dating site uk A client SHOULD avoid sending requests via cleartext protocols or to unauthenticated alternative services for the duration of the commitment interval, except to discover new potential alternatives.top 10 dating websites in canada

partnervermittlung ulm umgebung pensionen A commitment is not bound to a particular alternative service. Clients are able to use alternative services that they become aware of. However, once a valid and authenticated commitment has been received, clients SHOULD NOT use an unauthenticated alternative service. Where there is an active commitment, clients SHOULD ignore advertisements for unsecured alternative services. A client MAY send requests to an unauthenticated origin in an attempt to discover potential alternative services, but these requests SHOULD be entirely generic and avoid including credentials.immobilien haus wohnung privat kaufen mieten kostenlos inserieren

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partnervermittlung ulm umgebung provisionsfrei Errors in configuration of commitments has the potential to render even the unsecured origin inaccessible for the duration of a commitment. Initial deployments are encouraged to use short duration commitments so that errors can be detected without causing the origin to become inaccessible to clients for extended periods.100 percent free muslim dating sites

singlebörse kostenlos ohne premium To avoid situations where a commitment causes errors, clients MAY limit the time over which a commitment is respected for a given origin. A lower limit might be appropriate for initial commitments; the certainty that a site has set a correct value - and the corresponding limit on persistence - might increase as a commitment is renewed multiple times.100 free muslim dating websites

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singlebörse kostenlos online User Agents MUST NOT provide any special security indicia when an free dating in india without registration http resource is acquired using TLS. In particular, indicators that might suggest the same level of security as the dating coach watch online https MUST NOT be used (e.g., a “lock device”).singlebörse unter 18 ist

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singlebörse kostenlos owl For example, because the 100 free polish dating site Alt-Svc header field [RFC7838] likely appears in an unauthenticated and unencrypted channel, it is subject to downgrade by network attackers. In its simplest form, an attacker that wants the connection to remain in the clear need only strip the the dating coach movie free online Alt-Svc header field from responses.contacta partnervermittlung innsbruck

singlebörse kostenlos osnabrück Downgrade attacks can be partially mitigated using the watch the dating coach movie online tls-commit member of the http-opportunistic well-known resource, because when it is used, a client can avoid using cleartext to contact a supporting server. However, this only works when a previous connection has been established without an active attacker present; a continuously present active attacker can either prevent the client from ever using TLS, or offer its own certificate.motorradteile kostenlos inserieren

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singlebörse kostenlos junge leute Cached alternative services can be used to track clients over time; e.g., using a user-specific hostname. Clearing the cache reduces the ability of servers to track clients; therefore clients MUST clear cached alternative service information when clearing other origin-based state (i.e., cookies).partnervermittlung ulm umgebung freizeit

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singlebörse kostenlos jaumo HTTP implementations and applications sometimes use ambient signals to determine if a request is for an watch the dating coach movie online free https resource; for example, they might look for TLS on the stack, or a server port number of 443.seriöse partnervermittlung bonn

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singlebörse für unter 18 References

lego star wars die komplette saga android kostenlos Normative References

[RFC2119]
Bradner, S., “kostenlos e mail adressen hotmail”, BCP 14, RFC 2119, asian male white female dating sites, March 1997, <top 100 single charts anhören>.
[RFC2818]
Rescorla, E., “top 100 single charts hören”, RFC 2818, free online polish dating site, May 2000, <free polish dating websites>.
[RFC5246]
Dierks, T. and E. Rescorla, “local singles phone chat free trial”, RFC 5246, online dating in cyprus, August 2008, <plenty more fish free online dating>.
[RFC5785]
Nottingham, M. and E. Hammer-Lahav, “singlebörse unter 18 geburtstag”, RFC 5785, free dating in cyprus, April 2010, <100 free dating site in cyprus>.
[RFC6454]
Barth, A., “free dating websites in cyprus”, RFC 6454, free arab dating online, December 2011, <free arabic dating sites>.
[RFC7159]
Bray, T., Ed., “free arab dating sites”, RFC 7159, free arab dating website, March 2014, <free arabic dating site uk>.
[RFC7230]
Fielding, R., Ed. and J. Reschke, Ed., “free arabic dating websites”, RFC 7230, couch kostenlos inserieren, June 2014, <auto inserieren kostenlos ch>.
[RFC7232]
Fielding, R., Ed. and J. Reschke, Ed., “car4you kostenlos inserieren”, RFC 7232, comparis kostenlos inserieren, June 2014, <partnersuche neuseeland youtube>.
[RFC7234]
Fielding, R., Ed., Nottingham, M., Ed., and J. Reschke, Ed., “singlebörse unter 18 kostenlos”, RFC 7234, free indian muslim dating sites, June 2014, <arabic free dating sites>.
[RFC7540]
Belshe, M., Peon, R., and M. Thomson, Ed., “free local dating sites in usa”, RFC 7540, free local dating sites in south africa, May 2015, <free local dating sites in australia>.
[RFC7838]
Nottingham, M., McManus, P., and J. Reschke, “free local dating sites uk”, RFC 7838, free local dating sites in canada, April 2016, <chat ohne anmelden 2000>.

100 free no sign up dating sites Informative References

[RFC7258]
Farrell, S. and H. Tschofenig, “single forum kostenlos youtube”, BCP 188, RFC 7258, single forum kostenlos runterladen, May 2014, <arab free dating websites>.
[RFC7435]
Dukhovni, V., “partnersuche namibia camping”, RFC 7435, free dating site without no payment, December 2014, <100 free dating sites no payment>.
[RFC7469]
Evans, C., Palmer, C., and R. Sleevi, “singlebörse kostenlos mallorca”, RFC 7469, singlebörse kostenlos mit bild, April 2015, <singlebörse kostenlos münchen>.

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singlebörse kostenlos bayern Thanks to Patrick McManus, Stefan Eissing, Eliot Lear, Stephen Farrell, Guy Podjarny, Stephen Ludin, Erik Nygren, Paul Hoffman, Adam Langley, Eric Rescorla, Julian Reschke, Kari Hurtta, and Richard Barnes for their feedback and suggestions.singlebörse kostenlos mönchengladbach

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singlebörse kostenlos brandenburg Mark Nottingham
EMail: singlebörse kostenlos magdeburg
URI: singlebörse kostenlos männer
singlebörse kostenlos beste Martin Thomson
Mozilla
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