/// <summary>
/// Encodes a string
/// </summary>
/// <param name="text">String to encode</param>
/// <param name="cookieProtection">The method in which the string is protected</param>
/// <returns></returns>
public static string Encode(string text, CookieProtection cookieProtection)
{
if (string.IsNullOrEmpty(text) || cookieProtection == CookieProtection.None)
{
return(text);
}
byte[] buf = Encoding.UTF8.GetBytes(text);
return(CookieProtectionHelperWrapper.Encode(cookieProtection, buf, buf.Length));
}
/// <summary>
/// Decodes a string
/// </summary>
/// <param name="text">String to decode</param>
/// <param name="cookieProtection">The method in which the string is protected</param>
/// <returns>The decoded string or throws InvalidCypherTextException if tampered with</returns>
public static string Decode(string text, CookieProtection cookieProtection)
{
if (string.IsNullOrEmpty(text))
{
return(text);
}
byte[] buf;
try {
buf = CookieProtectionHelperWrapper.Decode(cookieProtection, text);
}
catch (Exception ex) {
throw new InvalidCypherTextException("Unable to decode the text", ex.InnerException);
}
if (buf == null || buf.Length == 0)
{
throw new InvalidCypherTextException("Unable to decode the text");
}
return(Encoding.UTF8.GetString(buf, 0, buf.Length));
}