Renewable security

Renewable Security was a concept that evolved after the repeated hacks of analogue TV encryption systems in the late 1980s.The decoders at that time often contained all of the conditional access control data in a microcontroller.When the decoder was hacked, the whole system was effectively compromised as other subscriber identity data could be substituted and the hackers had control.The subscriber identity data and subscription details would be stored in a smartcard - the Detachable Secure Processor.In reality, changing or upgrading the smartcards on a widely used TV Encryption system can be expensive and is done as infrequently as possible.
TV encryptionmicrocontrollersmartcardVideoCryptBroadcast encryptiondigital rights managementConditional accessCableCARDConditional access systemCommon InterfaceConditional-access moduleDVB-CPCMSyndicationSmart cardsencryptionCisco VideoscapeVideoGuardIrdeto CryptoworksDigicipherKeyFlyNagravisionPowerVuMediaguardVerimatrixViaccessContent Scramble SystemAdvanced Access Content SystemAuthorized domainBroadcast flagData securityCard sharingPirate decryptionAnalogue broadcastCGMS-AEuroCryptLeitchOak OrionVideocipherfree-to-viewpay television