65 lines
2.9 KiB
Ruby
65 lines
2.9 KiB
Ruby
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# Check if required utilities are installed
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def check_utility(utility)
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system("command -v #{utility} > /dev/null 2>&1")
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end
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required_utils = ['argon2', 'xxd', 'bc']
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required_utils.each do |utils|
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unless check_utility(utils)
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puts "#{utils} is not installed. Please install it and try again."
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exit(1)
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end
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end
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# Read the challenge code from argument or prompt user
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challenge = ARGV[0] || (print "Enter Challenge Code: "; gets.chomp)
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# Validate the challenge format
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unless challenge.match?(/^(\d+):(\d+):([A-Za-z0-9]+):(\d+)$/)
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puts "Invalid challenge format. Expected format: memory_cost:time_cost:salt:difficulty"
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exit(2)
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end
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# Parse challenge code
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memory_cost, time_cost, salt, difficulty = challenge.split(':').map(&:strip)
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# Debugging output
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puts "Memory Cost: #{memory_cost}"
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puts "Time Cost: #{time_cost}"
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puts "Salt: #{salt}"
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puts "Difficulty: #{difficulty}"
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# Generate prefix for the password
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pw_prefix = "UNBLOCK-#{(0...8).map { ('A'..'Z').to_a.sample }.join}-"
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difficulty_raw = (Math::E**(Math.log(256) * (4 - Math.log(difficulty.to_i) / Math.log(256)))).to_i
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puts "Estimated iterations: #{difficulty}"
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puts "Time Cost: #{time_cost}\n"
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n = 1
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start_time = Time.now
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# Function to display elapsed time
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def elapsed_time(start_time)
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elapsed = Time.now - start_time
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print "\rElapsed Time: #{elapsed.to_i} seconds."
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end
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# Main loop to find the solution
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loop do
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pw = "#{pw_prefix}#{n}"
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hash_result = `echo -n "#{pw}" | argon2 #{salt} -t #{time_cost} -k #{memory_cost} -p 1 -id -v 13 -r`
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hash_bytes = hash_result.split('$')[3][0..7] # Extract the first 8 characters of the hash
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if hash_bytes.to_i(16) < difficulty_raw
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puts "\nSOLUTION FOUND"
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puts "Your unblock code is: #{pw}"
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puts "This is the code you enter into the site to pass the challenge.\n"
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break
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else
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elapsed_time(start_time)
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n += 1
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end
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end
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