MACROMEDIA FLASH MEDIA SERVER 2-SERVER-SIDE ACTIONSCRIPT LANGUAGE Guida di Installazione Scaricare il pdf (Pagina 52)

RTMPE

New feature in Flash Media Streaming Server and Flash Media Interactive Server; requires Flash

Player 9,0,115,0 or later.

EncryptedRTMP(RTMPE)isenabledonFlashMediaServerbydefault,andallowsyoutosend

streamsoveranencryptedconnectionwithoutrequiringcerticatemanagement.Oering

secure128-bitencryption,RTMPEisonlysupportedinFlashPlayer9orlater,withtheupdated

FLVPlaybackcomponentandNetConnectionclasses.BothSSLandRTMPEcanalsobe

“tunneled”toensureconnectivitythroughnetworkrewalls.RTMPEistherecommendedform

ofencryption,asitiseasiertodeployandismuchfasterthanSSL.

Implementingstreamencryptioninyourapplicationsiseasy.Simplyspecifytheprotocolwhen

you connect to your application:

• SSL

NetConnection.connect(“rtmps://yourFMSserver.com”);

• TunneledSSL

NetConnection.connect(“rtmpts://yourFMSserver.com”);

• EnhancedRTMP

NetConnection.connect(“rtmpe://yourFMSserver.com”);

• TunneledenhancedRTMP

NetConnection.connect(“rtmpte://yourFMSserver.com”);

Defend against replay technologies

Replaytechnologiesor“streamripping”hasbeenadicultsecurityissuetosolvebecauseit

allows the viewer to directly access and record the data of a stream.

Streamencryptionpreventsstreamripping.Inthepast,SSLwastheonlychoice,anditwastoo

slowformostapplications.FlashMediaServer3usesRTMPE,whichismuchmoreecientand

easier to implement.

Another method of defense against stream ripping is to insert intelligence into your server-client

communications. By adding additional code to your video player, you could require your SWF to

respond to a request from Flash Media Server to verify a unique string sent from the server, for

example. is interrupts the ow of data to the stream ripping soware, as it cannot respond

with the correct data, and will be denied access.

Digital Rights Management support

New feature in Flash Media Streaming Server and Flash Media Interactive Server; requires Flash

Player 6 or later. RTMPE/SWF verication requires Flash Player 9,0,115,0 or later.

DRMhastwokeyelements:encryptionandaccesscontrol.erearetwowaystodelivervideoto

a consumer: streaming or downloading. When you stream video from Flash Media Server, you

immediately increase your protection.

EncryptionwithFlashMediaServerisdoneinreal-timewithRTMPS(SSL)orwithRTMPEin

Flash Media Server 3.

Access control with Flash Media Server is done simply with SWF verication. Access control is

muchmorepowerfulwithFlashMediaInteractiveServerbecauseofitsnewplug-inarchitecture,

alongwiththeserver-sideapplicationlayer.Usingwebservices(SOAP),FlashRemoting,orXML

you can create a system with secure tokens that provide access control over your content.

esearethebasicprinciplesofDRMforstreaming.Forthedownloadusecase,Adobewillbe

releasingnewtechnologywiththeAdobeMediaPlayerinearly2008.

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MACROMEDIA FLASH MEDIA SERVER 2-SERVER-SIDE ACTIONSCRIPT LANGUAGE Guida di Installazione Pagina 52

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