in C language

1 Hill Cipher In this assigunent youll wilite a jeogan that encrypts the alphabetic leners in a file using the Hill cipher where the Hill matrin can be any alne droe 2.2 up to 5.9 . Vuue peogram will bake two comemand line parameten coentaining the numes of the Alr stocing the encryption key and specified below. 1.1 Command line parametets 1. Your propiam must campille and nan lrom the trrmial cummanat lise. 2. lopput the required file names as censund line parameters loar program may SOI peompt the user so enter the file aumes. Tlar first parameter itsus be the name of the encryptioe key file, ab described belak. The seceid parameter mast be the name of the file to be eneryperd, also drscribed belise. The cumple nun cummand near the end of this document coetains an example of lowe the parameters sheld be entered and peocessed. 3. Veat progpam shoeld dopen the nwo filis, ncho the peocrsied input to the screm, make the necessary calculatians, and then outpat the clpherseat to the cnnsole (ierminalf serees in the format described below. Note If the plaintrat file to be enerypted donat have the proper number of alphabetic characien to makh the bey sise pad the leat bobck as necrisary with the bewercase lieter x. Make sare that all the ingut characters afe lowier cese enly. 12 Formats 1.2.1 Encryptine Kiny Fale Fomats The eneryption bey fle will onetain as winde pouitive kitegre, n where II <>