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Show HN: Rumuki, a prenup for sex tapes

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Re: Show HN: Rumuki, a prenup for sex tapes

#51

Post by Freak_NL »

nathankot wrote: post #11
mirimir wrote: post #6

Ummm, so shoot a video of the playing video. Or hack into the display circuitry. With that, you could stream a copy somewhere, even if both parties were present.

OP here, this is addressed in the FAQ, I'll paste it here :) > How do I know my partner won't abuse my trust? > You can't. However with Rumuki you have the discretion to only grant playbacks when you can keep an eye on them. You also have the option to revoke all playback grants and delete the recording if trust is ever lost.

While you literally did address the question (and I applaud you for responding), you didn't actually answer it.

There is, of course, no technological way to prevent someone from capturing a video through the analogue hole (i.e., pointing a camera to the video as it is played), even if we assume that is possible that a consumer device can be controlled to such an extent that its owner can't find a way to capture the video output digitally.

Re: Show HN: Rumuki, a prenup for sex tapes

#52

Post by dsacco »

nathankot wrote: post #11
mirimir wrote: post #6

Ummm, so shoot a video of the playing video. Or hack into the display circuitry. With that, you could stream a copy somewhere, even if both parties were present.

OP here, this is addressed in the FAQ, I'll paste it here :) > How do I know my partner won't abuse my trust? > You can't. However with Rumuki you have the discretion to only grant playbacks when you can keep an eye on them. You also have the option to revoke all playback grants and delete the recording if trust is ever lost.

In principle, what stops one party from simply reverse engineering the client app and permanently retrieving the file? Once the video file is decrypted on the client, even briefly, you've lost control.

Your answer demonstrates that you've thought about this problem, not that you've solved it. I like the idea of this app, but I would argue that the core promise of your app is technically infeasible.

EDIT: I clicked through to read your whitepaper and see that you've explicitly called this concern out and admitted the DRM scheme cannot be foolproof. That's admirable, and I'm glad you did address it. I would gently suggest you place that disclaimer somewhere in your FAQ as well.

Re: Show HN: Rumuki, a prenup for sex tapes

#53

Post by usgroup »

Hmmm thinking better still would be some kind of cooperative playback whereby it's not possible to play or record the video without direct cooperation from the other device. One device could store a one time pad for the video and the other could store the XOR with the one time pad. Both have to cooperate to play back. Could be extended to N devices devices using Samir's algo

Re: Show HN: Rumuki, a prenup for sex tapes

#55

Post by ChicagoBoy11 »

I'm incredibly impressed by the design work on this. As someone who has studied design the past few years, the landing page alone is filled with little details and choices that taken together just succinctly and beautifully communicate what this app does. Definitely inspiring to know Nathan just hacked on this on his own -- I hope it is a terrific success!

Re: Show HN: Rumuki, a prenup for sex tapes

#56

Post by stevehiehn »

mirimir wrote: post #6

Ummm, so shoot a video of the playing video. Or hack into the display circuitry. With that, you could stream a copy somewhere, even if both parties were present.

Sure. But I would imagine that most videos start off with sincere mutual interest and only later due to bad breakups or stolen phone etc become a problem.

Re: Show HN: Rumuki, a prenup for sex tapes

#59

Post by mirimir »

stefs wrote: post #40
kijin wrote: post #18

Earlier quoted context omitted.

Most people who leak sex tapes involving an ex probably don't think of doing so while they are still in a relationship with said ex. By the time they think of revenge, the victim-to-be should already have revoked access. If your ex is making secret copies of sex tapes while you are still in a relationship with him, I think you have bigger things to worry about than revenge porn.

in my opinion this is the main point people pointing out the "just videotape it" problem miss.

I somewhat agree. But relationship status can be very vague and ambiguous. Let's say that you discover that your partner is unfaithful. You're pissed off, but you hide it until you've had a chance to clone those sextapes. Then you talk it out, and see how things go.

Best bet is avoiding sextapes.

Re: Show HN: Rumuki, a prenup for sex tapes

#60

Post by bootlooped »

ycmbntrthrwaway wrote: post #50
golergka wrote: post #9

Earlier quoted context omitted.

Ask for frontal camera access, detect recording devices.

Uh-oh, nobody wants their face filmed while watching porn. And again, it is a client app, assume it would be modified by a malicious party. Just admit the problem is not possible to solve.

Like any other security concern, I don't think it's ever 100% solvable, you just get as close to solved as you reasonably can.
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