Abstract:
Nowadays, securing information and message transformation are going with electronic way, the
security becomes very important role on public network. Cryptography is readable message convert to
unreadable message using encryption/decryption process. Encryption Process is sender and decryption
process are receiver side. Commonly, information can be storing with international language such as English
language. At the present time, everyone is trying to be more secure not only English but also own language
such as Myanmar, Chinese, Tamil etc. Confidential data are transferred through with regional language by
using with more innovative method. To secure such information, encryption/decryption plays an important
role in information security. In cryptography, there are several cipher techniques such as, polyalphabetic
cipher, Stream cipher, Block cipher etc. This section using Beaufort cipher is an example of substitution
cipher, In this paper, we propose an advanced encryption algorithm that improves the security of Beaufort
encryption by combining it with a modern encryption method such as Stream cipher for the Myanmar
language, Stream cipher is considered relatively as an unbreakable method and uses a binary form ( instead
of characters) where Plain text, encrypted text and key are bit string.
