public static string DecryptPassword(string email, string encryptedPassword)
{
try
{
using (RijndaelManaged rijndael = new RijndaelManaged())
{
//RijndaelManaged rijndael = new RijndaelManaged();
rijndael.IV = GetIV(email);
rijndael.Key = GetKey(email);
ICryptoTransform decryptor = rijndael.CreateDecryptor(rijndael.Key, rijndael.IV);
//Now decrypt the previously encrypted password using the decryptor obtained in the above step.
byte[] encrypted = HexEncoding.GetBytes(encryptedPassword);
using (MemoryStream msDecrypt = new MemoryStream(encrypted))
{
CryptoStream csDecrypt = new CryptoStream(msDecrypt, decryptor, CryptoStreamMode.Read);
//byte[] fromEncrypt = new byte[encrypted.Length];
byte[] fromEncrypt = ReadFully(csDecrypt);//(
//Read the data out of the crypto stream.
//csDecrypt.Read(fromEncrypt, 0, fromEncrypt.Length);
//csDecrypt.Close();
//msDecrypt.Close();
//Convert the byte array back into a string.
string result = new ASCIIEncoding().GetString(fromEncrypt);
return(result);
}
}
}
catch (Exception e)
{
throw new PasswordEncryptionException("Error decryption password", e);
}
}