یکی از پست های جذاب برای کاربران
توجه به برخی کانل های ماهواره ای است که علامت دلار دارند
و هم صدا و تصویر کد و قفل شده و رایگان نیست و کابر به کانال ماهواره ای دسترسی ندارد
یا در مواقعی فقط تصویر کد و قفل شده و شما فقط صدای پخش شده از کانال بفرم رادیویی قابل دریافت دارید
این مبحث برای بسیاری از کابرران حوزه رمز مخابرات و بخصوص رمز ماهماره ای و همچنین نگاهی به روشهای رمزگذاری و رمزگشایی کانل های ماهواره ای بسیار جذاب خواهد بود
در این پست بطور کاملا تخصصی مقالات و کتبی کاربردی همراه ترفندها جهت روش های رمزگذاری متداول کانال های ماهواه ای و قویترین و ضعیف ترین روش های رمز گذاری کانال های ماهوار های و راههای شکستن این رمزها و ....در این پست خواهید دید و ترفندهای و علم و متد نوین در این حوزه روبرو می شوند
که هم برای بچه های سیستم مخابرات و هم رمز مخابرات بسیار جذاب و پرکاربرد است و می توانند در پروزپزال های خود هم از ان جهت دانشگاه و طرح روش های جدید بهره ببرند
http://www.wseas.org/multimedia/journals/communications/2013/5704-139.pdf
http://easyglobaltv.com/
strong decoder free to air channels
digital coding video
Broadcast television systems
satellite tv channels encryption method
Television encryption
https://en.wikipedia.org/wiki/Television_encryption
Digital cable and satellite television encryption
DigiCipher 2 is General Instrument's proprietary video distribution system. DigiCipher 2 is based upon MPEG-2. A 4DTV satellite receiver is required to decode DigiCipher 2channels. In North America, most digital cable programming is accessed with DigiCipher 2-based set-top boxes. DigiCipher 2 may also be referred to as DCII.
PowerVu is another popular digital encryption technology used for non-residential usage. PowerVu was developed by Scientific Atlanta. Other commercial digital encryption systems are, Nagravision (by Kudelski), Viaccess (by France Telecom), and Wegener.
In the US, both DirecTV and Dish Network direct broadcast satellite systems use digital encryption standards for controlling access to programming. DirecTV uses VideoGuard, a system designed by NDS. DirecTV has been cracked in the past, which led to an abundance of cracked smartcards being available on the black market. However, a switch to a stronger form of smart card (the P4 card) wiped out DirectTV piracy soon after it was introduced. Since then, no public cracks have become available. Dish Network usesNagravision (2 and 3) encryption.
In Canada, both Bell TV and Shaw Direct DBS systems use digital encryption standards. Bell TV, like Dish Network, uses Nagravision for encryption. Shaw Direct uses aDigiCipher 2-based system very similar to that of 4DTV large dish satellite systems.
digital encryption standards for controlling access to programming
Dish Network usesNagravision (2 and 3) encryption.
https://en.wikipedia.org/wiki/Conditional-access_module
scrambling syste
Videocrypt
audio scrambling
SATPAC
European channel
SATPAC
The system was first used in September 1986 and saw many upgrades as it was easily compromised by pirates
By September 1992, FilmNet changed to D2-MAC EuroCrypt
Conditional Access system using the D2-MAC standard. Developed mainly by France Telecom, the system was smartcard based. The encryption algorithm in the smartcard was based on DES. It was one of the first smart card based systems to be compromised.
encryption algorytm
Technical details about sattelite tv encryption algorythm
https://en.wikipedia.org/wiki/Pirate_decryption
قسمت مهم ماجرا لینک اصلی راهزنی ماهواره ای است که به روشهای دزدی از سیگنالهای پولی توسط هکرها حرفه ای پرداخته
combination of techniques
تکنکی های ترکیبی رمزگذاری استحکام امنیتی بیشتری دارند , سرعت احتمال شسکتن انها کمتر
Technical issues
authentication protocol for satellite television systems
http://security.stackexchange.com/questions/41797/is-it-possible-to-decrypt-a-satellite-tv-signal-without-using-a-smart-card
- Each subscriber has a smartcard, and that card contains a key Ks specific to that subscriber.
-
- The media stream is encrypted with a key K. That key is updated regularly.
-
- Along with the media stream, the publisher sends K encrypted with each Ks in circulation. That is, every minute or so, thousands of small blobs are sent in some "holes" in the data stream (apparently there is sufficiently free bandwidth for that); all these blobs contain K, but encrypted with the key of a subscriber.
- subscriber
- Bolbs
- own encryption algorithms,
- مهندسی معکوسی در کدشکستن
- https://en.wikipedia.org/wiki/Reverse_engineering
- clone smartcards
- interesting pirating method
- There's an interesting pirating method that have made it possible for the cycle to extend way longer than two weeks. It's called CardSharing. Here's how it works:
+ نوشته شده در پنجشنبه یکم بهمن ۱۳۹۴ ساعت ۱۲:۱۴ ب.ظ توسط میثم نوری
|
