Add solver.rb

solver.rb

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