FSA based Code Sequence Checking to Prevent Mal Use of Myanmar IDNs

With the development of new technologies, not only online contents but also domain names can be represented in local languages and this makes human society with better communication, better education and better business. Though domain names in some Asian languages such as Japanese, Indian languages, Sinhala and Urdu, are already implemented, not many works have been attempted on domain names in Myanmar language. Thus, the first part of this study aims to discuss fundamental issues for implementing Myanmar domain names by stating language-specific characteristics. Secondly, Myanmar language has different types of combining marks, similar-looking characters and homoglyphs which can open phishing attacks. Thus, possible spoofing attacks are addressed and finite state automata (FSA) based coded sequence checking method is proposed to prevent combining mark order spoofing in Myanmar language. Our tested results on Stuttgart FST tool (SFST) show that the proposed FSA could check code sequence order of Myanmar characters correctly. Though we use Myanmar script as an example, we expect that this approach will work properly for other Asian scripts.