how can I make C# based Video Encryption and security case which can hold up to 10 to 20 videos of 5 to 10 minutes

Question

1.00/5 (3 votes)

See more:

I am planning to make a client server application at which client will install a software which will contain 10 to 20 video tutorials each of which will be 5 to 10 minutes in length , what will be the best way to secure those videos , in such a way that no one can use it (Play it) without the client software's embedded media player , what will be the best and reliable process to do it and which tool will be best for it I mean Should I go with WPF or Windows Form ?

Posted 3-Jan-13 7:49am

asadullahabkari

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Sergey Alexandrovich Kryukov · Answer 1 · 2013-01-03T08:14:00

Let me tell you that this is nasty. I would advise you to think and weight million times before you decide to introduce such a draconian limitation on your users. Think is your video is really that valuable that anyone would want to steal it. :-)

Let me also tell you that, in principle, given enough time, resources and money, and, more importantly, convincing moral and legal justifications of such work, I could personally take a job of picking your media files, no matter how strong encryption you use. Why? Simply because once you already delivered the medial on the client's screen, it's already there.

And finally, how is this related to C#. I guess, you want to develop everything, including your special decrypting player, in .NET. Then let me tell you the final thing: everything which works as a code of .NET assembly can be easily reverse-engineered. Even if the software is protected, especially if it is protected with one of well-known software protection tools or simply obfuscated. And once it is reverse-engineered, the code can even easier be modified into… anything at all: media decryptor, converter into legitimate media or something else.

And mind you, it is not related to your encryption. The encryption may be infinitely hard to break, but nobody will need it: if your special player can play your encrypted media, it can convert it to legitimate formats, actually using the same decryption process you would devise.

So, you have no chance. But you are warned.

Take it easy,

—SA

Christian Graus · Answer 2 · 2013-01-03T08:14:00

Solution 2

WPF and windows forms are utterly irrelevant. They have nothing to do with videos. What you want to do, is somehow make the videos unplayable, except by the media player. That means you need to write a media player that knows how to decode these videos, and an encoder. Sounds like a lot of work for some video tutorials.

Posted 3-Jan-13 8:14am

Christian Graus

Comments

Sergey Alexandrovich Kryukov 3-Jan-13 14:17pm

Even this is totally useless. I think I explained it in my answer.
—SA

Christian Graus 3-Jan-13 14:20pm

Well, it's a horrible idea. But it would work.

Sergey Alexandrovich Kryukov 3-Jan-13 14:22pm

The OP's idea? Yes, it would work against lamers, but not a qualified engineer. No chance; I'll guarantee that.
—SA

Christian Graus 3-Jan-13 14:57pm

If the video was encrypted, it would take some work to overcome, but no system is perfect. This one is just stupid though, that's what I was trying to illustrate

Sergey Alexandrovich Kryukov 3-Jan-13 15:08pm

Who would argue with that? You are right here... And, perfect... hm... well, way too many systems are way closer to "perfection" that what OP could possibly can. :-)
—SA

asadullahabkari 4-Jan-13 8:34am

my idea is to have a vbook , like we have pdf book , in which lessons list is on left side pan in tree view and on right side pan actual book can be scrolled , I want to make same thing on windows form or WPF , on left hand side Lesson Tree view and on right hand side video player but it will be in Encrypted form that it will be only play in that winform not other than any other media player .

Member 13531459 20-Nov-17 12:46pm

My application doesn't store any memory whatsoever between executions. And the decryption and encryption is completely dependent on the keys which dissappear after execution. Would this help deter reverse engineering at all?