| > The specification is secret and confidential. It uses the SMS4 | > block cipher, which is secret and patented. [*] | | "Secret" and "patented" are mutually exclusive. Actually, they are not. There is a special provision in the law under which something submitted to the patent office can be declared secret. You as the inventor are then no longer allowed to talk about it. I think you are granted the patent, but it cannot be published.
This provision has been applied in the past - we know about it because the secrecy order was later (years later) lifted. I don't believe there is any way for someone on the outside to know how many patents may have tripped over this provision. Needless to say, this is a disaster for you if you are the patent applicant and want to sell your product. But there isn't much of anything you can do about it. I'm not sure what happens to the term of a patent "hidden" in this way. The above description is of US law. It's likely that similar provisions exist in other countries. -- Jerry --------------------------------------------------------------------- The Cryptography Mailing List Unsubscribe by sending "unsubscribe cryptography" to [EMAIL PROTECTED]