<div class="pull-right">
  <blockquote>
    <img src="https://steemitimages.com/DQme4CCUe498qexYVhA9NaokJ3rD2QEfMnJarNsMZ9UCiGv/image.png">
  </blockquote>
</div>

So I was minding my own business reading my feed and I noticed that @matt-a posted:

[PSA: NEW HUGE PASSWORD DUMP. Are You One Of The 501,636,842 Earth Dwellers That Have Been Pwn3d?! You Might Want To Find Out. READ ME.](https://steemit.com/infosec/@matt-a/psa-new-huge-password-dump-are-you-one-of-the-501-636-842-earth-dwellers-that-have-been-pwn3d-you-might-want-to-find-out-read-me)

Now I have to write a ruby script to comb this 29 GB file of hashes.  But I have a lot of things to check.  I got one of the files over torrent, and extracted it (`pwned-passwords-2.0.txt`).

Here's what I'm using to check it:

`Gemfile`

```ruby
source 'https://rubygems.org'
gem 'highline'
```
---
`check.rb`

```ruby
require 'rubygems'
require 'bundler/setup'
require 'digest'

Bundler.require

filename = 'pwned-passwords-2.0.txt'
cli = HighLine.new
answers = []

loop do
  answer = cli.ask 'What do you want to check?  Empty line to start check.' do |q|
    q.echo = '*'
  end

  break if answer == ''
  answers << answer
end

shas = answers.map do |answer|
  Digest::SHA1.hexdigest(answer).upcase
end

File.open(filename, 'r') do |f|
  f.each_line do |line|
    exit if shas.empty?

    if line =~ /(#{shas.join('|')})/
      puts line
      sha = line.split(':').first
      shas.delete(sha)
    end
  end
end
```

Enjoy.<div class="chainbb-footer"><hr><em><small><a href="https://chainbb.com/ruby/@inertia/scanning-the-dump">Originally posted</a> in the <a href="https://chainbb.com/f/ruby">/f/ruby</a> forum on <a href="https://chainbb.com">chainBB.com</a> (<a href="https://chainbb.com/chainbb/@jesta/chainbb-frequently-asked-questions-faq">learn more</a>).</small></em></div>