Using advanced encryption standard to secure the content dissemination of electronic Braille books

Abstract

The scarcity of accessible information mediums for visually impaired people is recognized by many international organizations. The situation is even worse for those students with visual impairment who have integrated themselves into mainstream schools with their sighted peers. Although there are a few online information services available like Braille and digital talking books to serve the needs of visually impaired school students, these information services face a number of restrictions, such as accessing book content with minimal cost of investment, handling the complicated transcribing and brailing task, and respecting the issue of legal distribution. This research aims to develop an application named 'CET Embossing Manager'. With the aid of this software, Electronic Braille producers and consumers can access various types of electronic Braille file formats, view the content of the file, and handle various tasks of embossing. To make the content of the book secured, Advanced Encryption Standard (AES) or Rijndael is used to protect the file from modifications made by unauthorized parties and limit the number of republishing.