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How to prevent screenshots in a web browser

patrick-wied.at

91–100 of 131 posts

Re: How to prevent screenshots in a web browser

#91
post #50

Earlier quoted context omitted.

> independent artists can't make a living anymore because everyone just expects it to now be free. DRM can't help artists make money. It only helps them lose more. Examples which talk about it: * http://www.lexi-alexander.com/blog/2014/6/1/will-the-real-pi... > And this is my favorite part: I am 100% certain that the hacking of entertainment industry's security features provides better entertainment for these kids th…

That is the thing the Content owners do not get... The people releasing the content do not care about the actual content, they are not fans, hell most of them probably never watched/played/listened to the movie/show/game/song they are releasing. The Act of cracking, releasing, encoding, etc is the entertainment for them... The content is irrelevant

Luckily some start getting it, but the majority still doesn't.

Re: How to prevent screenshots in a web browser

#93
I did something similar you can demo: http://jastanton.com/experiments/imagescrambler/

Shuffle an image, re-assemble with a bunch of divs with background offset and just the right amount to bring the picture back. If you download the image you get a scrambled imaged.

Doesn't protect against screenshot.

Very fun :)

Re: How to prevent screenshots in a web browser

#94
post #62

Earlier quoted context omitted.

The evidence shows that DRM in the service of corporations and businesses tends to be nasty. But there are reasons to believe that DRM, if used to protect the data and privacy of individuals would be very valuable, with the caveat that it would have to be implemented in a trustworthy way. What if there was a way to provide access to your medical records to people who need them, only for as long as they need them? Wha…

> But there are reasons to believe that DRM, if used to protect the data and privacy of individuals would be very valuable, with the caveat that it would have to be implemented in a trustworthy way. DRM can not be trustworthy by its mere definition (because trust is a mutual thing, and those who deploy DRM don't trust you - the user. So you have every reason not to trust them in return). And it never can be valuable…

tl;dr - Let's please think about the economics! Let's not just believe emotionally charged Internet aphorisms, but examine things thoughtfully.

Authentication and information security has nothing to do with DRM, even though both can have features like encryption. Let's not mix unrelated subjects.

What is the limiting of who can have my personal data and when, but Digital Rights Management, or DRM? One cannot stop at authentication, because to be complete, one has to prevent copying data. Without this, it becomes problematic to trace who has released information, and without some legal support, nothing at all is practical.

DRM can not be trustworthy by its mere definition

Sorry, but this is fluff. You could apply this "logic" to authentication as well. DRM has to involve some mutual trust and cooperation to the same extent that any protocol involves mutual trust and cooperation.

The key is to realize that DRM as practiced by corporations is evil and unworkable because the economics were utterly unrealistic. Really, where DRM could help individuals would be the elimination of trivial deniability on the part of corporations. Right now, when your data privacy is breached, there is no cost to "break" anything and it's very hard to pin this on a particular corporation. Add a DRM mechanism, and then there is something tangible to apply protection laws to and a labor cost with definite intent to breach an individual's privacy. In aggregate, the cost and potential legal liability becomes too high to for virtually any corporation to contemplate. We would arrive at a situation where corporations could afford to violate the privacy of a few select individuals, but could no longer do so to the public wholesale. Ordinary citizens would enjoy a measure of protection, though rich individuals and corporations would not.

Sounds pretty good to me.

Underlying everything, I'm not so much advocating DRM, as I'm calling to question emotionally charged "magical thinking" combined with naive induction. Let's not just leave things at "DRM is bad" devoid of real examination of what's happening.

EDIT: It also occurs to me that the historical factual differences between individuals and corporations should be used to modify the current formulation of "legal persons." "Legal Persons" should be considered as "persons" only in terms of a few specific factors, like the owning of property. The historical difference between actual and legal persons with regards to data privacy abuses would be an important corpus of information in support of this.

Re: How to prevent screenshots in a web browser

#95
post #12

How to drive away customers: prioritize your unproven loss of income over making an attractive product. Accuse all your users of copyright infringement.

It is unbelievable that the entire comment thread is filled with people saying it's a bad article, it can be worked around, etc, when:

1. The article is an experiment on techniques and what can be achieved.

2. At the VERY BEGINNING of the article, the author links to his own comment in a previous HN post which said "I do not advocate using any of the techniques, please don't use it, it's terrible and will give your users headaches! I'm against ressource "protection" on the web, what's on the internet should be fully consumed by users of it! The article describes just a few experiments I set up to see how far someone could go if it WAS important."

3. The article acknowledges these techniques are ultimately stupid.

What is this attitude? Would you have the same attitude with someone experimenting with XSS flaws, hacks and so on to figure out what is possible? Did you all forget than, in order to do good, you have to know what is bad first?

Re: How to prevent screenshots in a web browser

#96
post #90

Earlier quoted context omitted.

That's the same pie-in-the-sky "what if" that loser corps have been pursuing forever. 1) That's the same kind of half-baked wishful thinking that's been going around the Internet since before the web. 2) I'm not advocating doing what loser corps have been pursuing. I'm advocating flipping the economics around 180 degrees. someone else breaks it shortly thereafter, whether it's DiVX, or DVD encryption, or BluRay encry…

> It is fundamentally broken What is fundamentally broken is the idea of overreaching preemptive policing (DRM). I.e. the one expressed by Sony execs in the past: https://en.wikipedia.org/wiki/Sony_rootkit#Background > "The industry will take whatever steps it needs to protect itself and protect its revenue streams... It will not lose that revenue stream, no matter what... Sony is going to take aggressive steps to st…

Evidently you either simply didn't read or understand my proposal, and you mistakenly believe I am writing in support of corporations using DRM against individuals. That is the complete opposite of the truth.

What is fundamentally broken is the idea of overreaching preemptive policing (DRM).

The record clearly shows that applied to individuals, DRM becomes "fundamentally broken overreaching preemptive policing."

The same record clearly shows that turned around 180 degrees, DRM is entirely appropriate. What's broken for protecting a single piece of information the whole Internet wants becomes viable for protecting information chiefly valuable to the individual. DRM applied in reverse against corporations is "economically viable historically supported policing."

Re: How to prevent screenshots in a web browser

#97
post #16

Earlier quoted context omitted.

That was not the point of the article. In fact, had you read the article, you'd find that your point has been addressed three times over and that the author acknowledges it's all futile anyway.

I don't think he quite does. His conclusion is basically that image protection isn't worth it, because more exposure is better. That's different from declaring it to be futile.

Exactly. I read the article. At the end he declares it isn't worth it, which is a different sentiment altogether. He seems to believe that his last-minute addressing of the screenshot "attack" is adequate, even though earlier he was talking about an audience which is a developer themselves. For such an audience, his mitigation of the attack isn't really effective at all. That's what I was pointing out. He just forgot about the standard he set up in first part of his article when writing the update.

Re: How to prevent screenshots in a web browser

#98
post #72

Earlier quoted context omitted.

Obscurity is a far more common problem than plagiarism. The best solution for this is to put a signature in the image. Most people aren't trying to steal an image without attribution, they just want to share something they liked.

> Most people aren't trying to steal an image without attribution, they just want to share something they liked. As an amateur photographer you'd be amazed how many people think nothing of taking an image and slapping it on their website, or in their print media. People routinely use services like imgur.com to rehost images they have no permission to use, and can and will strip watermarks and be silent when asked for…

> strip watermarks and be silent when asked for attribution.

If the watermark can be removed without making the image largely useless then you're not watermarking properly. Sure, its not pretty, but this isn't a pretty world. I never understood the lazy bottom-right watermark. Its trivial to remove and sites like reddit reward fraud because people like to pretend its their content as narratives like "Oh i bought a camera and took my first photo" are eaten up by low-information voters (who i imagine are the plurality of votes on reddit).

Re: How to prevent screenshots in a web browser

#100
post #12

How to drive away customers: prioritize your unproven loss of income over making an attractive product. Accuse all your users of copyright infringement.

It is unbelievable that the entire comment thread is filled with people saying it's a bad article, it can be worked around, etc, when: 1. The article is an experiment on techniques and what can be achieved. 2. At the VERY BEGINNING of the article, the author links to his own comment in a previous HN post which said "I do not advocate using any of the techniques, please don't use it, it's terrible and will give your u…

Totally agree. Articles like this are awesome and ideally HN would be filled with them. It's about a set of interesting hacks, that are ultimately still just hacks, but stimulate the hacker mind and add to an archive that can be drawn upon when/if the reader ever encounters the need to solve a similar problem (hopefully with better practical applicability). Articles like this are amusing, interesting, and inspiring, and embody the spirit of Hacker News.
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