Hex: Changed pack and unpack to use 'H*'. This resulted in more consi…

…stent fast speeds in tests.

README.rdoc

@@ -236,6 +236,7 @@ mailto:jeff@paploo.net
 = Version History
 [1.3.3 - 2011-Jul-19] Added new functionality
                       * (FEATURE) Added PKCS5 v2 keygen from a passphrase support.
+                      * (FIX) Hex conversion is more consistently faster now."
 [1.3.2 - 2011-Jun-15] Changed minimum requirements from 1.8.6 to 1.8.7.
                       * (CHANGE) Minimum requirements are 1.8.7 due to too many bugs in 1.8.6.
                       * (FIX) Update to the documentation to reflect 1.8.7 support.
@@ -282,7 +283,6 @@ mailto:jeff@paploo.net
 * See what happens when including SecurizeString into an object that is not a String.
   What are the expected root methods?  +to_s+, <tt>self.new(string)</tt> are two
   that I know of.
-* See if unpack('H*') is faster than calculating the string length for hex unpack.
 * Create a method that returns a "\x48\x69" style string, and one that can
   parse it back into a string.
 

lib/securize_string/binary_string_data_methods.rb

@@ -25,7 +25,7 @@ def parse_data(value, opts={})
         case data_type_hint
         when :hex
           hex_string = value.to_s.delete('^0-9a-fA-F')
-          data_string = [hex_string].pack('H' + hex_string.bytesize.to_s)
+          data_string = [hex_string].pack('H*')
         when :data
           data_string = value.to_s
         when :int
@@ -46,7 +46,7 @@ module InstanceMethods
 
       # Returns the hexidecimal string representation of the data.
       def data_to_hex
-        return (self.to_s.empty? ? '' : self.to_s.unpack('H' + (self.to_s.bytesize*2).to_s)[0])
+        return (self.to_s.empty? ? '' : self.to_s.unpack('H*')[0])
       end
 
       # Returns the data converted from hexidecimal into an integer.