where my code is wrong

hello professionals can you plz help me in this code i want to display a at decrypted part but there is no value .plz help in code where i am wrong ...mostly the value of c3 come in form of 4.1038e+216...according to me if c(3) be made interger then code will be ok...but how it can be....as my code is

|matlab code for cryptography:|

% % %Encryption

             for j=1:x

             c1(j)=l_mod(c(j),e,n);

             c3=g.^c1(j);

              t=m*m;

             c2=l_mod(r,m,t);

             cipher(j)=c3*c2;

              end

 disp('Cipher Text of the entered Message:');

 disp(cipher);

% % %Decryption

for j=1:x

     m1(j)=l_mod(cipher(j),lamda,t);

      m2(j)=m1(j)-1;

      m3(j)=m2(j)/m;

          m4=l_mod(mew,1,m);
          m5=m3(j )*m4;
          msg(j)=l_mod(m5,d,n)
  end
  disp('Decrypted Message is')
  dec=char(msg)

|answer coming after running code:|

The value of (n) is: 391
The public key (e) is: 3
The value of (g) is: 552
The private key (m)is: 551

Enter the message: a
ASCII Code of the entered Message:
    97

c1 =

      79

c3 =

    4.1038e+216

t =

        303601

c2 =

        141151

cipher =

    5.7926e+221

Cipher Text of the entered Message:
  5.7926e+221

msg =

     15.9049

Decrypted Message is

dec =

Answer 1

[Matt J]

It appears to be l_mod's fault. Where does l_mod come from? What does it do, and what makes you sure that it is working?

Answer 2

[rjnt Kaur]

l_mod is mfile for cryptography without this mod cannot be calculated ...because i am doing this for example c^e mod m

[Matt J]

You missed my point. l_mod is not working correctly. Therefore you must debug it. We cannot help you debug it because we cannot see it.

[rjnt Kaur]

Ok ...can you please tell me wat be the matlab code for equation c^e mod n

[Bjorn Gustavsson]

c.^mod(e,n)

Answer 3

[rjnt Kaur]

l_mod is m file for module...for example i have to calculate c^e mod f then mod(c,e,m) is calculated using m file of mod

Answer 4

[rjnt Kaur]

i want to display a which has char value 97 but at output side it doesnot come 97

[Image Analyst]

Please add comments to someone's answer, and edit them if you want to add stuff, rather than adding additional, new "Answers", which actually aren't answers at all.