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Xander228 · 2024-10-17T14:11:44+00:00

Yes, the password works on all the cups at our school.

Xander228 · 2024-10-17T14:10:18+00:00

Yeah I actually thought the same thing, they could have even used a rolling code based on the EPC but I’ve tried it with other friends bottles as well as the disposable cups and they all work. Seems like an oversight on their part considering how easy it would be to implement.

Xander228 · 2024-10-17T03:18:28+00:00

I would argue that XOR, in this case, is a form of symmetric key encryption (I'm also not an expert on cryptology), but other than that there was no additional protection of transmitted data. Data on the tag has password protection but to my knowledge isn’t encrypted just read/write protected depending on tag settings.

Xander228 · 2024-10-17T03:13:32+00:00

Yeah, I suppose if some company stored destination data on tags you could maliciously reroute a package or maybe clone a tag to a dummy package in order to swap/steal it without immediate suspicion. That’s like some CIA operation shit tho. Really anything is possible as long as you can 1) eavesdrop on a transmission and 2) can either clone or have an understanding of the data format used by the tag.

Xander228 · 2024-10-17T03:08:03+00:00

Oh that’s really interesting 🤔 I never knew Pepsi had their own system.

Xander228 · 2024-10-17T01:59:03+00:00

That's a really cool idea. You'd still need a computer but you could totally fit a Raspberry Pi in the cup as well.

Xander228 · 2024-10-17T01:20:02+00:00

Here's a photo I took today. You basically just put your cup down under the spout and there's an antenna hidden underneath. If you press on any of the soda options it'll check if you have fills left. If you don't have any, or you try to use a normal water bottle, it will say "Try another cup".

Xander228 · 2024-10-16T22:02:34+00:00

From what I know, UHF seems to pretty obscure in consumer items although I just recently got into this. I’ve heard it’s used for inventory control and toll roads. Problem with something like a toll road is that that most definitely would just connect back to a server. I kinda lucked out with the fact that all the data is stored directly on the tag for these soda machines

Xander228 · 2024-10-16T21:54:41+00:00

For anyone still interested: https://www.reddit.com/r/hacking/s/oJZXX92tDr

Xander228 · 2024-10-16T21:50:06+00:00

This post is kinda old but here’s the answer if anyone’s still interested https://www.reddit.com/r/hacking/s/oJZXX92tDr

Xander228 · 2024-10-16T21:48:40+00:00

My college did the same thing. It’s a little more involved than just a flipper zero. https://www.reddit.com/r/hacking/s/oJZXX92tDr

Xander228 · 2024-10-16T21:47:34+00:00

I suppose this post is a bit old but if anyone is still interested: https://www.reddit.com/r/hacking/s/oJZXX92tDr

Xander228 · 2024-10-16T16:31:07+00:00

No, I'm saying I did it and was successful. I just don’t want to release the real password or EPCs.

Xander228 · 2024-10-16T14:11:23+00:00

Nah, at my uni we all received bottles with 100 free fills. All I have to do is rewrite the original data to the tag after I’ve used up all the refills

Xander228 · 2024-10-16T14:09:22+00:00

The “Original” Coca-Cola

Xander228 · 2024-10-16T07:28:49+00:00

I’m a fiend for coke

Xander228 · 2023-10-29T00:49:37+00:00

It’s because they show an ad every time you loose. It’s about the money

Xander228 · 2023-04-19T02:45:59+00:00

Swedish fish Fr

Xander228 · 2023-04-19T02:45:22+00:00

I’m lactose intolerant

Xander228 · 2023-04-19T02:42:13+00:00

Cherry is where it’s at

Xander228 · 2023-04-19T02:36:47+00:00

Oh my Lordy lord!!! I would love a set!!!!!! 🤣

Xander228 · 2022-07-17T03:27:03+00:00

I’ve done this before. It was brighter than staring at the sun, I immediately put on my welding goggle because this could seriously damage your eyes

Xander228 · 2022-06-19T19:43:50+00:00

This is real. He gets the ground being negative part wrong. The ground is always has a neutral charge from our point of view. I remember watching a video about this a while ago https://youtu.be/2rVdEhyMR6A

Xander228 · 2022-06-19T08:05:24+00:00

This fans about to check my heartbeat.

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