encryption is the conversion of data or messages into a form called cypertext so other unauthorized people can't read it and cannot easily understand . decryption is the process of converting inverted data back into its orignal form so we can understand it these both are very important in wireless communication.
coding using R.S.A Algo:- choose any two prime no.(2,5). (p,q) find module. M=p.q find a=(p-1)*(q-1). find key. 1<k<a assign natural no. for alphabet. raise these no. to the power of key.divide each no. by module.
