converting string into ASCII

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I am working on a project where I have to convert password into ASCII values. The code I wrote is

C#

con.Open();
    string var = "ashwani";
    int i ;
   
    int varLen = var.Length;
    for (i = 0; i <= varLen; i++)
    {
      
       string aaa = var.Substring(i, 1);
       byte[] ddd= Encoding.ASCII.GetBytes(aaa);
       String zz = Convert.ToString(xxx) + 290 + i;
       string main = string.Empty;
       main = main + zz;

    }

In variable zz it returns me System.Byte[]2900 but not the ascii value of alphabet "a'

plz ..help me

Posted 13-Jun-13 21:46pm

ashwani.pandita

Updated 13-Jun-13 21:48pm

uspatel

v2

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Richard MacCutchan 14-Jun-13 4:00am

This won't even compile; what is the value of xxx?

4 solutions

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Richard MacCutchan · Accepted Answer · 2013-06-13T22:07:00

Solution 3

C#

string var = "ashwani";
byte[] ddd = System.Text.Encoding.ASCII.GetBytes(var);

ddd now contains the entire string in ASCII.

Posted 13-Jun-13 22:07pm

Richard MacCutchan

Prasad_Kulkarni · Accepted Answer · 2013-06-13T22:02:00

Solution 1

Refer: http://stackoverflow.com/questions/5348844/how-to-convert-string-to-ascii[^]

Posted 13-Jun-13 22:02pm

Prasad_Kulkarni

SPASWIN · Accepted Answer · 2013-06-13T22:04:00

Solution 2

Try This Solution...

C#

class Program
    {
        static void Main(string[] args)
        {
            string var = "ashwani";
            var sample= var.ToCharArray();
            string main = string.Empty;
            foreach(char a in sample)
            {
                byte[] ddd = Encoding.ASCII.GetBytes(Convert.ToString(a));
                main += ddd[0];
            }
            Console.WriteLine(main);
            Console.ReadKey();
        }
    }

Posted 13-Jun-13 22:04pm

SPASWIN

Updated 13-Jun-13 22:06pm

v2

Comments

johannesnestler 14-Jun-13 4:36am

why are you converting to char Array and then convert each byte individually? This is inefficent and not neccessary - look at my solution..

SPASWIN 14-Jun-13 10:21am

@johannesnestler ..Yes i agree Sir.

johannesnestler · Accepted Answer · 2013-06-13T22:20:00

Hello ashwani,

I assume you are a beginner, and this is kind of "homework" project?
I can't resist to give you a tip learned in painfull lessons: the most important thing about programming is: inventing names and remembering them. those names are the symbols in your head for the problem domain. So: give your variables always meaningful names (aaa, xxx is not so good ;-) and using var as variable name is even worse - because it's a keyword! (I don't tell you now how to use keywords as names - it's possible - but you should never do it!)

To your problem:

I can't figure out what your code is trying to achive. Why are you adding 290 + counter variable i to a string? So forgive me if I got you wrong, I just present a solution for what I think you want:

C#

string strPassword = "ashwani"; // example password
 // Assume the password string is ASCII, so let's get the individual bytes and store them in a variable
 byte[] abyPasswordBytes = Encoding.ASCII.GetBytes(strPassword);

 // Now we can do something with the bytes
 // It seems you tried to write them to a string - let's do that
 string strAllByteValues = String.Empty;
 foreach (byte by in abyPasswordBytes)
 {
     strAllByteValues += by.ToString() + " "; // we add a space as separator
 }
 // the variable strAllByteValues now holds the string "97 115 104 119 97 110 105 "

So you see: after calling GetBytes you already have the individual bytes for your string - it seems you just got confused how to use them later...

So, good luck with your project and kind regards

Johannes