lib/base58.rb in base58-0.0.4 vs lib/base58.rb in base58-0.1.0

@@ -10,11 +10,12 @@
 
   # Converts a base58 string to a base10 integer.
   def self.base58_to_int(base58_val)
     int_val = 0
     base58_val.reverse.split(//).each_with_index do |char,index|
-      int_val += (ALPHABET.index(char))*(BASE**(index))
+      raise ArgumentError, 'Value passed not a valid Base58 String.' if (char_index = ALPHABET.index(char)).nil?
+      int_val += (char_index)*(BASE**(index))
     end
     int_val
   end
 
   # Converts a base10 integer to a base58 string.
@@ -25,8 +26,13 @@
       mod = int_val % BASE
       base58_val = ALPHABET[mod,1] + base58_val
       int_val = (int_val - mod)/BASE
     end
     ALPHABET[int_val,1] + base58_val
+  end
+  
+  class << self
+    alias_method :encode, :int_to_base58
+    alias_method :decode, :base58_to_int
   end
   
 end