lib/ctf_party/xor.rb in ctf-party-1.5.0 vs lib/ctf_party/xor.rb in ctf-party-2.0.0

@@ -9,12 +9,12 @@
   #   'key'.ulxor('hello') # => "he\a\t\u0016"
   def ulxor(key)
     b1 = unpack('U*')
     b2 = key.unpack('U*')
     longest = [b1.length, b2.length].max
-    b1 = [0] * (longest - b1.length) + b1
-    b2 = [0] * (longest - b2.length) + b2
+    b1 = ([0] * (longest - b1.length)) + b1
+    b2 = ([0] * (longest - b2.length)) + b2
     b1.zip(b2).map { |a, b| a ^ b }.pack('U*')
   end
 
   # UTF-8 XOR with key (padding left) in place as described for {String#ulxor}.
   def ulxor!(key)
@@ -34,11 +34,11 @@
     raise 'The key is not ASCII' unless b2.ascii_only?
 
     b1 = b1.chars.map(&:ord)
     b2 = b2.chars.map(&:ord)
     longest = [b1.length, b2.length].max
-    b1 = [0] * (longest - b1.length) + b1
-    b2 = [0] * (longest - b2.length) + b2
+    b1 = ([0] * (longest - b1.length)) + b1
+    b2 = ([0] * (longest - b2.length)) + b2
     b1.zip(b2).map { |a, b| (a ^ b).chr }.join
   end
 
   # ASCII XOR with key (padding left) in place as described for {String#alxor}.
   def alxor!(key)