Code release to invalidate copy once of digital terrestrial digital BS · CS 110 °

Block ciphers adopted as standard ciphers for Japanese satellite and terrestrial digital broadcasting are "MULTI 2It is called a descrambler that can invalidate its encryption (called transmission data scrambled for confidentiality on the receiving sideDevice to restoreThe implementation code of the) has been released.

This means that if you have this code and B - CAS card, you can invalidate copy - once of digital terrestrial digital BS · CS 110 °.

Details are as below.
Slashdot Japan | Mizu Digi / BS Digi / CS110 ° compatible MULTI 2 descrambler released

The code itself is named "ARIB STD - B25 Specification Confirmation Test Program Source Code", which is being published on the 25th November page of the following page.

Marumo Seisakusho - everything is a hobby

According to the accompanying readme.txt, the purpose of the code release is "Publish as reference implementation for understanding ARIB STD - B25 specification" and the following background is explained.

Ahead of ground wave analog broadcasting stops in July 2011, low-cost terrestrial digital broadcasting
The sale of the receiver is awaited

However, ARIB's standard document is difficult to understand intentionally and it makes the development cost cumbersome
It has become such a meaningless and obscure description that it seems only to be
It seems impossible to develop a low price receiver as it is

So I read the ARIB standard document on my own,
I decided to publish it in the form of code

I hope this code will help to develop an inexpensive receiver

Since it is intended only for the purpose of understanding specifications, it has already been built
Do not distribute binary files

For details on how to actually use this code for nowRadio LifeIt seems to be delightfully illustrated with explanations coming around, but how is it ....

By the way, terrestrial digital Hi-Vision can be recorded via USB (decrypted MPEG 2 TS), and as an option that can operate in Windows VistaFreeo"Has attracted attention recently, and as an alternative option other thanPV4YaMonster Xthere is.