Created
March 13, 2018 19:49
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require 'digest' | |
require 'io/console' | |
require 'net/http' | |
# Proxy setup here | |
http = Net::HTTP # use this for no proxy or if you are fine with ENV var http_proxy | |
# http = Net::HTTP::Proxy('myproxy.local', '8080') # use this for explicit configuration of proxy within this ruby script | |
puts '+++++ PASSWORD CHECKER +++++' | |
print 'Please enter password: ' | |
password = STDIN.noecho(&:gets).chomp | |
puts | |
digest = Digest::SHA1.hexdigest(password).upcase | |
digest_start = digest[0..4] | |
digest_rest = digest[5..-1] | |
# puts "SHA-1 Digest of password = #{digest}" | |
# puts "First 5 chars of digest = #{digest_start}" | |
# puts "Rest of digest = #{digest_rest}" | |
puts 'Checking your password against https://haveibeenpwned.com/ corpus of known passwords' | |
pawned_passwords_results = http.get(URI("https://api.pwnedpasswords.com/range/#{digest_start}")) | |
# Query gives a result like | |
# 005DBD3FF2C95176C6B73C0F9E1831D166D:7 | |
# 006A31EF658E6FC01F733042B5376C9FD5A:1 | |
# This is the digest_rest of each broken password, and the number of times it occurs in the dataset | |
pawned_password_digest_rest_hash = pawned_passwords_results.lines.map(&:chomp).map { |line| line.split(':') }.to_h | |
broken_count = pawned_password_digest_rest_hash[digest_rest] | |
if broken_count | |
puts "Your password is INSECURE (https://haveibeenpwned.com/ knows #{broken_count} uses of it)" | |
else | |
puts 'Your password may be secure, at least it is not known to https://haveibeenpwned.com/' | |
end |
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