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votes
3answers
353 views

Securing a video using encryption

Videos uploaded on Youtube or any other video streaming website can be easily downloaded by using 3rd party software. In order to prevent the viewers from sharing the video to unauthorised people. I ...
1
vote
0answers
627 views

How is the Apple FairPlay Server Playback Context (SPC) message generated?

I'm researching encryption tools that use OS-verified hardware such as a TPM or Secure Element. Given that FairPlay only works on iOS and certain Mac hardware, I suspect there is some interaction ...
4
votes
2answers
1k views

Best practice for securing encrypted content on Android app

I have an Android APK which loads in locally stored content files protected by AES encryption, and I want to keep the encryption key secret from all users. Only the app itself should be able to read ...
0
votes
2answers
194 views

Is encryption an efficient way to protect digital media?

Recently my friend and I were discussing his idea of protecting the digital media that he has been generating. His initial idea was to encode the data using proprietary encoding algorithm and ...
-2
votes
6answers
8k views

How to prevent illegal file transfer or copying of video files from a PC? [closed]

I have developed a windows desktop application using VB.NET. My applications main purpose is to play videos. I have some videos which has copyrights on them, that are not suppose to be distributed or ...
1
vote
1answer
113 views

Hide data from user, but process it in application

Is there a way to hide the data that's received somehow from the user? In particular, I have some data that gets send from a webserver to an application. I want the application to process the data, ...
-2
votes
2answers
320 views

How are people still copying and redistributing DRM-protected music

...when DRM-protected material is encrypted using the AES cipher, which there are currently no efficiently computable cracks for?
0
votes
5answers
243 views

Snapchat clone: How do I secure pre-downloaded notifications so that they cannot be opened outside of the app?

Say I'm making a snapchat clone app for Android and iOS. Let's say that I get a snapchat from Baz. I want to pre-download the audio for this snapchat. However, as the developer, I want to secure this ...
18
votes
6answers
12k views

How do I prevent copying of my PDF files?

One time while I was printing my documents at a copy center, I saw they dragged-and-dropped my PDFs from my flash drive to their desktop. How do I protect my files without using password? Is there a ...
1
vote
1answer
861 views

How can I implement DVD copy protection?

I want to make a DVD movie which will be playable on a standard DVD player, but I want to make it copy restricted. I know it is practically impossible, but I just want security to protect it from ...
11
votes
4answers
30k views

How do software keygens work?

I have seen them plenty of times, with many different types of software, but the one thing I have always wondered, is how software keygens know what key to generate. I know the basic principle of it: ...
10
votes
1answer
2k views

What role does cryptography play in anti-piracy?

As a follow-up to Cipher for Product Registration, are there secure yet usable cryptographic standards/protocols for protecting software and data used by software? I'm interested in hardware and ...