APLIKASI ENKRIPSI SMS DENGAN MODIFIKASI VIGENERE CIPHER PADA PONSEL ANDROID

Intisari / Abstract

Communicating is one of the earth's human nature as a means of communicating to understand  each  other.  As  for  how  communication  has  developed  very  rapidly  from  era  to era. One way is through writing or message. Messages a delivery of information that can be read and have meaning.

In recent years, rapid development occurs on mobile phone technology (cell phones). One of them is a smart phone that has  a full feature  with complex operating system like a computer. Various operating system for mobile phones were introduced, such as Android. 

Although equipped with premium features and the operating system, for the security of the delivery of messages through SMS facility, is still considered inadequate. By encrypting the content of messages to be sent, then the level of information security of the message can be  improved.  Of  the  various  techniques  of  encryption,  encryption  method  Vigenere  cipher Caesar  cipher  with  modifications  and  Eulerian  numbers  chosen  as  the  method  with  a  light workload. Access to the message of the application must be secured with the password, so the message will be safe from unauthorized parties.