where my code is wrong

Question

rjnt Kaur 2013-5-12

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/75482-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 =

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Matt J 2013-5-12

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/75482-where-my-code-is-wrong#answer_85151

编辑：Matt J 2013-5-12

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?

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

Answer 2

rjnt Kaur 2013-5-12

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/75482-where-my-code-is-wrong#answer_85156

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

3 个评论
显示 1更早的评论隐藏 1更早的评论

rjnt Kaur 2013-5-13

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

Bjorn Gustavsson 2013-5-13

c.^mod(e,n)

请先登录，再进行评论。

Answer 3

rjnt Kaur 2013-5-12

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/75482-where-my-code-is-wrong#answer_85157

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

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

Answer 4

rjnt Kaur 2013-5-12

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/75482-where-my-code-is-wrong#answer_85158

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

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

Image Analyst 2013-5-12

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.

请先登录，再进行评论。