2008年7月12日 星期六

Suggestions to overcome China's Great Firewall(2)

Overall speaking, my idea are base on the following understanding of censorship process:

1. The censorship body does NOT enjoy to do the censorship manually in word by word fashion(especially when it is not the right type of Chinese character), therefore they rely on automatic mechanism;
2. Those mechanism are prone to error since computer software doesn’t understand what it do.
3. Communist China wouldn’t like to slow down the Internet because it is necessary for commercial transaction.
4. Communist China doesn’t like to increase the cost of censorship on its own expense, no censor like that.
5. There are economic price to pay when the censorship software block much more than its intended target.
6. The weakness of all automatic mechanisms in general:
A. It fail to recognize the correct language setting of the webpage, and has no low cost way to ascertain that;
B. It recognize the target word only by combination of Chinese character, not through an understanding of the sentence, thus many attack could target this;
C. It fail to recognize the intend of different types of data available in the webpage, it only mechanically check against a database of taboo words;
D. Censorship Software can’t read picture.

A more advance method is a website that has a software to reliably detect censorship mechanism. Once it recognize that is being blocked, it can automatically alter the disguise of content in according to my suggestions. Then it try again to see if its method is successful, that would keep altering its disguise until it is no longer blocked by China’s Great Firewall.

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