Discussion on several existing protection methods and their solutions

Crack

Copy, paste is a landmark invention, look at the online articles, university papers you will understand. But there are people who need a technology to protect their articles, so there are a variety of solutions. The authors classify these schemes and describe their defense and attacking principles respectively.

Primary:

To copy, of course, the right button, and then choose Replication, the Web programmer did one thing, that is to screen the right menu, the user right button, pop-up a boring dialog box, and then the user is afraid of not point.
But the method is very simple, the user chooses the text, to a CTRL + C, the trouble is solved. Programmers want to, that is, you have to select, to CTRL + C, that good to do, to another recruit, the document selected function shielding, I thought this is OK?
But the user is so stupid, so in the menu bar to find "view source files." So programmers also turn off the menu on the window. Quite good, 30% of the average user has not folded, had to give up.

Intermediate:

But for other users, solve this problem is a piece of cake, and this article is also good, so the page can not be copied to CTRL + N, the new pop-up page what the menu has, a lifetime of gas also to a "Save as", save the article slowly read.
Next programmer a bit of trouble, first in the Web page embedded <iframe src= "" *.htm "" ></iframe, do not let the user "Save as", and then embed a JS file in, let JS to load the article, So that users can not see the content of the article in the source file. And this approach also prevents a lot of news-gathering tools, and that's wonderful (the programmer is boasting).
But this has also been good, has been 50% of users choose to give up, because the level of the article is also "good" level.

Senior:

However, there are some economic value of the article, or useless, the user dedicated to this site wrote a small program, the content of the Web page copied out. is also very simple. You don't know, I tell you: in IE's "tools" menu can be added to the custom menu, when the menu is executed, it can (and can do a lot of things) call an HTML page, which takes a parameter, is the current page window object, and then want to copy something, is it easy? (hehe, if you really do not understand, it doesn't matter, if the voice is strong, I write a little more specifically to introduce this thing text )

But, you know, copy and reverse copy just like the two sides of the war, the user has a new method, programmers always have a new strategy, I saw an article "end of the Internet text Copy & PASTE ERA of the weapon", hehe, it processed the article into:

<TD Class=p_normal nowrap> A landlord to introduce <br>, leave a phone, Lian <BR> all. "He also said,<br> door, dropped the matter also <BR><BR><TD Class=p_normal Nowrap> said:" Now open a Consignment department <BR> department address, sometimes even deposit <br > The freight owners here are replaced <BR> no one is handling it. </TD>

If only copy, the result of course is more messy. So that's what the article says. But the people who do it know that the guy is blowing the air, and that the deal is just one more shift for the person who can handle the previous situation. It's simple (don't you know?) Oh, have a free time to discuss discussions with me . ）

But one thing that's really hard is to encrypt the data and then decrypt it with a specific component. Oh this method, indeed better, you really need this article? If you're willing to spend hundreds of bucks, you can probably get it, that's crack. I have seen one, cracking is also very simple, remember the previous from the "Password input box" to take the password method, this can be achieved.
Another way to do this is to generate pictures directly on the server side. What can you do about it? Oh, probably not much. My advice is to use the word recognition software, if you really need it. I've done this before, it's some papers.

So far, I have to know the type, to the user, I believe that most of the anti-copy to you should not have a sense of God, and the defense programmers, you know what kind of way to protect the most reasonable?

Finally, I'd like to recommend two of the most effective:

I. Legal protection. Do you know, NetEase, Sina, how many people are copying their articles, I do not know, but definitely more. But they did not adopt any technical measures, only one legal note: This site content without permission, is strictly prohibited copy.

Second, with the traditional paper, oh, so annoying things, that is, trouble, the speed of transmission is also unhappy.