H.235
Encyclopedia
H.235 covers security
Security
Security is the degree of protection against danger, damage, loss, and crime. Security as a form of protection are structures and processes that provide or improve security as a condition. The Institute for Security and Open Methodologies in the OSSTMM 3 defines security as "a form of protection...

 and encryption
Encryption
In cryptography, encryption is the process of transforming information using an algorithm to make it unreadable to anyone except those possessing special knowledge, usually referred to as a key. The result of the process is encrypted information...

 for H.323
H.323
H.323 is a recommendation from the ITU Telecommunication Standardization Sector that defines the protocols to provide audio-visual communication sessions on any packet network...

 and other H.245
H.245
H.245 is a control channel protocol used with[in] e.g. H.323 and H.324 communication sessions, and involves the line transmission of non-telephone signals. It also offers the possibility to be tunneled within H.225.0 call signaling messages...

 based terminals

The standard addresses authentication by means of several algorithms, including Diffie-Hellman methods, and privacy. Privacy allows for encryption, also of the media streams
Streaming media
Streaming media is multimedia that is constantly received by and presented to an end-user while being delivered by a streaming provider.The term "presented" is used in this article in a general sense that includes audio or video playback. The name refers to the delivery method of the medium rather...

.

The standardization board agreed on H.235.1 (former H.235 Annex D ) to be the minimum requirement of an H.235 conform implementation.
H.235.1, also known as Baseline Security Profile defines Authentication
Authentication
Authentication is the act of confirming the truth of an attribute of a datum or entity...

 and Integrity
Integrity
Integrity is a concept of consistency of actions, values, methods, measures, principles, expectations, and outcomes. In ethics, integrity is regarded as the honesty and truthfulness or accuracy of one's actions...

.

An H.235.1 aware H.323 Gatekeeper
H.323 Gatekeeper
An H.323 Gatekeeper serves the purpose of Call Admission Control and translation services from E.164 IDs to IP addresses in an H.323 telephony network. Gatekeepers can be combined with a gateway function to proxy H.323 calls and are sometimes referred to as Session Border Controllers...

 can thereby assure that only trusted H.323 endpoints are granted access to the Gatekeeper's services.

External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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