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Zerocoin implementation bug

zcoin.io

11–20 of 142 posts

Re: Zerocoin implementation bug

#11
post #2

What's better that stealing magic Internet money? Creating anonymous magic Internet money out of thin air, then selling it. Brilliant. But seriously, I'm not sure which is worse: Watching your stolen money move around the blockchain knowing you are helpless to do anything about it, or being provably unable to even tell the difference between "real" and "counterfeit" coins.

> out of thin air

You don't understand economy.

Re: Zerocoin implementation bug

#12
The current market cap of Zcoin is 1,538 BTC [0], so this person created 1/4 of all the coins in circulation (410 BTC), and these guys are saying: "We knew we were being attacked when we saw that the total mint transactions did not match up with the total spend transactions". It took them way too long to realize that they were being outsmarted.

EDIT: u/aftbit also posted this on the thread: "They even cited the ability to detect hacks like this as a key advantage over Zcash. [1]"

[0] https://coinmarketcap.com/currencies/zcoin/

[1] http://blog.zcoin.tech/zcoin-and-zcash/

Re: Zerocoin implementation bug

#14
post #2

What's better that stealing magic Internet money? Creating anonymous magic Internet money out of thin air, then selling it. Brilliant. But seriously, I'm not sure which is worse: Watching your stolen money move around the blockchain knowing you are helpless to do anything about it, or being provably unable to even tell the difference between "real" and "counterfeit" coins.

I'll just leave this here: https://www.youtube.com/watch?v=vaqhGyOxp8I

Re: Zerocoin implementation bug

#15
post #10

Anyone know which line of code they're talking about? I took a glance at their Github bug tracker and couldn't find any references to this bug. [0] https://github.com/zcoinofficial/zcoin/issues?q=is%3Aissue+i...

Better look at commits.

I am not familiar with their code base, but latest commit seems like a bugfix: https://github.com/zcoinofficial/zcoin/commit/33796c839f7d4d...

Re: Zerocoin implementation bug

#16
post #2

What's better that stealing magic Internet money? Creating anonymous magic Internet money out of thin air, then selling it. Brilliant. But seriously, I'm not sure which is worse: Watching your stolen money move around the blockchain knowing you are helpless to do anything about it, or being provably unable to even tell the difference between "real" and "counterfeit" coins.

I never thought I'd see counterfeit cryptocurrency, yet here we are.

Re: Zerocoin implementation bug

#17
post #10

Anyone know which line of code they're talking about? I took a glance at their Github bug tracker and couldn't find any references to this bug. [0] https://github.com/zcoinofficial/zcoin/issues?q=is%3Aissue+i...

Better look at commits. I am not familiar with their code base, but latest commit seems like a bugfix: https://github.com/zcoinofficial/zcoin/commit/33796c839f7d4d...

Looks like they replaced a 50 with a 100.

Re: Zerocoin implementation bug

#18
post #12

The current market cap of Zcoin is 1,538 BTC [0], so this person created 1/4 of all the coins in circulation (410 BTC), and these guys are saying: "We knew we were being attacked when we saw that the total mint transactions did not match up with the total spend transactions". It took them way too long to realize that they were being outsmarted. EDIT: u/aftbit also posted this on the thread: "They even cited the abili…

Or alternatively, the developers designed this hard-to-find typo/bug years ago and have now just quietly cashed out.

Re: Zerocoin implementation bug

#19
post #2

What's better that stealing magic Internet money? Creating anonymous magic Internet money out of thin air, then selling it. Brilliant. But seriously, I'm not sure which is worse: Watching your stolen money move around the blockchain knowing you are helpless to do anything about it, or being provably unable to even tell the difference between "real" and "counterfeit" coins.

I'll just leave this here: https://www.youtube.com/watch?v=vaqhGyOxp8I

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