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Two changes to improve the successrate of BozoCrack #10

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Two changes to improve the successrate of BozoCrack #10

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20 changes: 18 additions & 2 deletions bozocrack.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -35,7 +35,17 @@ def crack
private

def crack_single_hash(hash)
response = Net::HTTP.get URI("http://www.google.com/search?q=#{hash}")
if plaintext = crack_single_hash_with_website(hash, "http://www.google.com/search?q=#{hash}")
return plaintext
end
if plaintext = crack_single_hash_with_website(hash, "http://www.google.com/search?q=md5+#{hash}")
return plaintext
end
nil
end

def crack_single_hash_with_website(hash, url)
response = Net::HTTP.get URI(url)
wordlist = response.split(/\s+/)
if plaintext = dictionary_attack(hash, wordlist)
return plaintext
Expand All @@ -48,6 +58,12 @@ def dictionary_attack(hash, wordlist)
if Digest::MD5.hexdigest(word) == hash.downcase
return word
end
sub_wordlist = word.split(/[^a-zA-Z0-9]+/)
if (sub_wordlist.size > 1)
if plaintext = dictionary_attack(hash, sub_wordlist)
return plaintext
end
end
end
nil
end
Expand All @@ -74,4 +90,4 @@ def append_to_cache(hash, plaintext, filename = "cache")
BozoCrack.new(ARGV[0]).crack
else
puts "Usage example: ruby bozocrack.rb file_with_md5_hashes.txt"
end
end