Ant senų veikia taip pat kaip pas šarintojus, nes seni aparatai nepalaiko HD, o dingo tik HD šiuo metu. Visi imtuvai, kurie turėjo HD jau galėjo atsinaujinti ir taip pat atnaujinti kodavimo algoritmą kortose. Šiaip kuo labiau į pabaigą tuo paprasčiau parašė :) budulis vulgaris pretended : > Nu nelabai ten pasisekė populiariai paaiskinti - taip ir nesupratau, > kodėl ant senų aparatų visvien nauja schema veikia, o pas sharintojus > nebeveikia :) > > 2014-06-28 23:55, Deivis rašė: >> Šiek tiek info iš forumų, kuri populiariai paaiškina kas keitėsi ir kaip >> keičiasi kodavimas nekeičiant imtuvų esamiems vartotojams: >> >> >> Sky's new pairing doesn't introduce any significant differences to the >> existing NDS data, that data is still encrypted so only a genuine card >> can decrypt it, but what it does do is add an additional layer of >> encryption between the box/card to prevent their cards from being used >> in card servers like oscam or CCcam (what your c line uses to decrypt >> channels). >> >> A new HD box running the latest firmware is able to take the incoming >> NDS data [ECMs/EMMs] from the MPEG (video) stream and further encrypt it >> before sending it to the card. >> >> An old HD box (or an SD box) just continues as it did before, extracting >> the NDS data from the MPEG stream and feeding it to the card. >> >> This design allows Sky to alter NOTHING to the existing NDS code, which >> is essential to (a) prevent loggers/hackers from running comparators >> over logs from the then/now data streams and (b) allow older boxes to >> work as before. >> >> Remember, the change has NOT happened at the NDS level, it has happened >> at the firmware level of both the new HD boxes and the existing cards. >> >> It's the boxes that are instructed to use the pairing algorithm [or not] >> for a particular channel(s) [or more accurately, entitlement group/level] >> >> If you place a card in a new HD box, the card will be instructed to >> accept the newly encrypted data using the sky box's pairing key... >> >> If you then move the card back to oscam, it will continue to expect that >> encrypted data for that channel(s) and try to decrypt it... >> Of course, as the incoming data is NOT encrypted (coming from oscam for >> example) you'll get nothing worthwhile back.. >> >> So what happens when you put a card back in oscam or put it back in an >> SD box or an old HD box and leave it..? >> If the card is unable to verify it's running in a new HD box [after x >> amount of time (or cycles) or following a new install/pairing process], >> it reverts back to the original system we all know and love, which is of >> course easy for most to share. >> [I'm sure their lawyers have reminded Sky not to enforce a blackout on >> paying customers for fear of prosecution or maybe Sky have acknowledged >> some people may use their own older boxes in the event of a failure..] >> >> How long Sky allow the card to revert back on the other hand is the >> question most pay servers should be considering.. >> >> As it stands now the new system does nothing to prevent c/s, however, >> once Sky are happy they have updated all the smartcards (all those EMMs >> you've been seeing...) and have completed most (if not all) of the box >> upgrades, expect to see some disruption. >> >> When this will be, you'll have to ask the boys over at Sky (and I'm not >> talking about their installers / customer support agents here lol) >> >> Here's a quick overview of both the old and new data exchange: >> >> Current: >> ECM/EMM Data is fed to the box via the MPEG stream, it then passes it to >> the card for a response. >> >> New: >> ECM/EMM Data is fed to the box via the MPEG stream, it then further >> encrypts the data using a pairing key before passing it on to the card. >> The card decrypts this in order to then decrypt and process the original >> ECM/EMM command. The reply is then encrypted [again using the pairing >> key] and sent back to the box, which then decrypts and executes it. >> >> Both the original ECM/EMM data and the reply have not changed, the only >> thing that has changed is the way the data was exchanged between the box >> and the card.. >> >> As has been mentioned (and seemingly ignored) beforehand, it is possible >> to use a card which has been updated to the new system by dumping the >> key from a new HD box (pretty much in the same way you dump an RSA key >> from a Nagra3 UK Cable box) which then allows the use of something like >> newcs, utilising the receiver ID of course. >> >> This information is not publically available as this would allow both >> ViasatHD and SkyHD (shortly) to be shared and to be honest, many that >> have worked on this are sick of all the exploitation... >> >> Deivis -- Deivis [persona], Vilnius Passat '08 2.0 FSI / A4 '05 1.8tq