diff --git a/lib/redmine/ciphering.rb b/lib/redmine/ciphering.rb
index 8efe37c29..2fb2dca86 100644
--- a/lib/redmine/ciphering.rb
+++ b/lib/redmine/ciphering.rb
@@ -17,10 +17,10 @@
 
 module Redmine
   module Ciphering
-    def self.included(base) 
+    def self.included(base)
       base.extend ClassMethods
     end
-    
+
     class << self
       def encrypt_text(text)
         if cipher_key.blank?
@@ -36,7 +36,7 @@ module Redmine
           "aes-256-cbc:" + [e, iv].map {|v| Base64.encode64(v).strip}.join('--')
         end
       end
-      
+
       def decrypt_text(text)
         if text && match = text.match(/\Aaes-256-cbc:(.+)\Z/)
           text = match[1]
@@ -51,13 +51,13 @@ module Redmine
           text
         end
       end
-      
+
       def cipher_key
         key = Redmine::Configuration['database_cipher_key'].to_s
         key.blank? ? nil : Digest::SHA256.hexdigest(key)
       end
     end
-  
+
     module ClassMethods
       def encrypt_all(attribute)
         transaction do
@@ -68,7 +68,7 @@ module Redmine
           end
         end ? true : false
       end
-      
+
       def decrypt_all(attribute)
         transaction do
           all.each do |object|
@@ -79,14 +79,14 @@ module Redmine
         end
       end ? true : false
     end
-    
+
     private
-    
+
     # Returns the value of the given ciphered attribute
     def read_ciphered_attribute(attribute)
       Redmine::Ciphering.decrypt_text(read_attribute(attribute))
     end
-    
+
     # Sets the value of the given ciphered attribute
     def write_ciphered_attribute(attribute, value)
       write_attribute(attribute, Redmine::Ciphering.encrypt_text(value))