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RandomString - A class containing methods to produce some handy random string combinations.
using System;
using System.Text;
namespace RandomString
{
public class RandomString : IDisposable
{
// Can use the BetterRandom class here or just use the built-in System.Random class.
private BetterRandom random = new BetterRandom();
private const string alpha_selection = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
private const string numeric_selection = "1234567890";
private const string symbol_selection = "!£$%^&*()-+=";
public string GenerateRandomString()
{
var length = random.Next(5, 15);
return GenerateRandomString(length);
}
public string GenerateRandomString(int length, bool onlyUseAlphaNumerics = false)
{
var alphanumeric_selection = alpha_selection + numeric_selection;
var characterSelection = onlyUseAlphaNumerics ? alphanumeric_selection : alphanumeric_selection + symbol_selection;
return GenerateRandomString(length, characterSelection);
}
public string GenerateRandomString(int length, string characterSelection)
{
var result = new StringBuilder();
for (var i = 0; i < length; i++)
{
var chr = characterSelection.Substring(random.Next(0, characterSelection.Length), 1);
result.Append(chr);
}
return result.ToString();
}
public string GenerateHashString(string stringToHash)
{
using (var crypto = new System.Security.Cryptography.SHA1CryptoServiceProvider())
{
return BitConverter.ToString(crypto.ComputeHash(Encoding.Unicode.GetBytes(stringToHash))).Replace("-", string.Empty);
}
}
public string GenerateRandomHashString()
{
return GenerateHashString(GenerateRandomString(1024));
}
public void Dispose()
{
Dispose(true);
}
protected virtual void Dispose(bool disposing)
{
if (disposing)
{
if (random != null)
{
random.Dispose();
random = null;
}
}
GC.SuppressFinalize(this);
}
}
}
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