Encription Decription
05/04/2012 09:38
private const string cryptoKey = "cryptoKey";
// The Initialization Vector for the DES encryption routine
private static readonly byte[] IV =
new byte[8] { 240, 3, 45, 29, 0, 76, 173, 59 };
/// <summary>
/// Encrypts provided string parameter
/// </summary>
public static string Encrypt(string s)
{
if (s == null || s.Length == 0) return string.Empty;
string result = string.Empty;
try
{
byte[] buffer = Encoding.ASCII.GetBytes(s);
TripleDESCryptoServiceProvider des =
new TripleDESCryptoServiceProvider();
MD5CryptoServiceProvider MD5 =
new MD5CryptoServiceProvider();
des.Key =
MD5.ComputeHash(ASCIIEncoding.ASCII.GetBytes(cryptoKey));
des.IV = IV;
result = Convert.ToBase64String(
des.CreateEncryptor().TransformFinalBlock(
buffer, 0, buffer.Length));
}
catch
{
throw;
}
return result;
}
/// <summary>
/// Decrypts provided string parameter
/// </summary>
public static string Decrypt(string s)
{
if (s == null || s.Length == 0) return string.Empty;
string result = string.Empty;
try
{
byte[] buffer = Convert.FromBase64String(s);
TripleDESCryptoServiceProvider des =
new TripleDESCryptoServiceProvider();
MD5CryptoServiceProvider MD5 =
new MD5CryptoServiceProvider();
des.Key =
MD5.ComputeHash(ASCIIEncoding.ASCII.GetBytes(cryptoKey));
des.IV = IV;
result = Encoding.ASCII.GetString(
des.CreateDecryptor().TransformFinalBlock(
buffer, 0, buffer.Length));
}
catch
{
throw;
}
return result;
}