Former Google Software Engineer Claims to Hack Zip File That Comprises $300,000 in BTC.

Michael Stay, a previous programming engineer with Google and the current CTO of keen agreement and decentralized application (Dapp) firm, Pyrofex, cases to have effectively hacked a compress document containing the private keys to over $300,000 in Bitcoin (BTC).

In a blog entry, Stay says that his excursion started when he got a message from “a Russian person” on LinkedIn around a half year prior.

Programming engineer reached on LinkedIn in regards to paper from 2000

The Russian had perused a paper composed by Stay in 2000 depicting a method that he had used to effectively assault compress records.

“He had read that paper I’d written 19 years ago and wanted to know if the attack could work on a file with only two files, Stay writes, adding: “A quick analysis said not without an enormous amount of processing power and a lot of money.”

“Because I only had two files to work with, a lot more false positives would advance at each stage. There would end up being 273 possible keys to test, nearly 10 sextillion. I estimated it would take a large GPU farm a year to break, with a cost on the order of $100K. He astounded me by saying he could spend that much to recover the key.”

Zip file contained keys to $300,000 in BTC

The files contained the private keys to what had been roughly $12,500 in BTC when the Russian purchased the coins during 2016. “Now they were worth upwards of $300K and he couldn’t remember the password,” says Stay.

“Luckily, he still had the original laptop and knew exactly when the encryption took place. Because InfoZip seeds its entropy using the timestamp, that promised to reduce the work enormously—”only” 10 quintillion—and made it quite feasible, a matter of a couple of months on a medium GPU farm.” 

We made a contract and I got to work,” he adds.

After several months of testing, including the discovery of a bug in his GPU farm, Stay claims to have cracked the file and returned the private key to the Russian.

source: cointelegraph

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