Generate Unique Number in C#

private string CryptedRandomString()

{

lock (this)

{

int rand = 0;

byte[] randomNumber = new byte[5];

RNGCryptoServiceProvider Gen = new RNGCryptoServiceProvider();

Gen.GetBytes(randomNumber);

rand = Math.Abs(BitConverter.ToInt32(randomNumber, 0));

return ConvertIntToStr(rand);

}

private string ConvertIntToStr(int input)

{

lock (this)

{

string output = "";

while (input > 0)

{

int current = input % 10;

input /= 10;

if (current == 0)

current = 10;

output = (char)((char)'A' + (current - 1)) + output;

}

return output;

}

Now you can call this method like this:

string GeneratedPassword = "";

GeneratedPassword = CryptedRandomString() + CryptedRandomString();

Console.WriteLine(GeneratedPassword.Substring(0,8));