This paper wins "best abstract" award: "Quantum Tokens for Digital Signatures," by Shalev Ben David and Or Sattath:

Abstract: The fisherman caught a quantum fish. "Fisherman, please let me go," begged the fish, "and I will grant you three wishes." The fisherman agreed. The fish gave the fisherman a quantum computer, three quantum signing tokens and his classical public key.

The fish explained: "to sign your three wishes, use the tokenized signature scheme on this quantum computer, then show your valid signature to the king, who owes me a favor."

The fisherman used one of the signing tokens to sign the document "give me a castle!" and rushed to the palace. The king executed the classical verification algorithm using the fish's public key, and since it was valid, the king complied.

The fisherman's wife wanted to sign ten wishes using their two remaining signing tokens. The fisherman did not want to cheat, and secretly sailed to meet the fish. "Fish, my wife wants to sign ten more wishes."

But the fish was not worried: "I have learned quantum cryptography following the previous story (The Fisherman and His Wife by the brothers Grimm). The quantum tokens are consumed during the signing. Your polynomial wife cannot even sign four wishes using the three signing tokens I gave you."

"How does it work?" wondered the fisherman.

"Have you heard of quantum money? These are quantum states which can be easily verified but are hard to copy. This tokenized quantum signature scheme extends Aaronson and Christiano's quantum money scheme, which is why the signing tokens cannot be copied."

"Does your scheme have additional fancy properties?" the fisherman asked.

"Yes, the scheme has other security guarantees: revocability, testability and everlasting security. Furthermore, if you're at the sea and your quantum phone has only classical reception, you can use this scheme to transfer the value of the quantum money to shore," said the fish, and swam his way.

Last week there was a big copyright ruling in India, where a court ruled against some big academic publishers in ruling that a photocopying kiosk that sold photocopied chapters from textbooks was not infringing on the copyrights of those publishers. We wrote about this case over three years ago, when it was first filed. It's actually fairly similar to a set of cases in the US that found college copyshops to be infringing -- leading to a massive increase in educational material for college students.

The Indian court went the other way. The full ruling takes a fair use-style look at the question, and recognizes that educational purposes are more important than padding the bank account of some big publishers. The ruling is pretty long, but there are a number of good points in there. Here's the one that a bunch of people have been quoting, noting that copyright is not inevitable, divine or a natural right:

Copyright, specially in literary works, is thus not an inevitable, divine, or natural right that confers on authors the absolute ownership of their creations. It is designed rather to stimulate activity and progress in the arts for the intellectual enrichment of the public. Copyright is intended to increase and not to impede the harvest of knowledge. It is intended to motivate the creative activity of authors and inventors in order to benefit the public.

Now that's a damn good quote on copyright law.

The court also talks a lot about how technology has changed over time, and that it shouldn't be held back by copyright.

Today, nearly all students of the defendant no.2 University would be carrying cell phones and most of the cell phones have a camera inbuilt which enables a student to, instead of taking notes from the books in the library, click photographs of each page of the portions of the book required to be studied by him and to thereafter by connecting the phone to the printer take print of the said photographs or to read directly from the cell phone or by connecting the same to a larger screen. The same would again qualify as fair use and which cannot be stopped.

The German Federal Supreme Court in Re. the Supply of Photocopies of Newspaper Articles by Public Library [2000] E.C.C. 237 held that in a modern technologically highly developed nation like Germany, an extensive fast functioning and economic information exchange was vital; that is why the libraries were given the freedom to operate and the reproduction rights of authors were restricted in favour of freedom of information; that it was sufficient to escape liability for copyright infringement if the customer of the library could claim the benefit of the exemption which allowed the copying for personal use, of articles published in a periodical; whether or not the library charges for its service is immaterial;

The court similarly notes the hypocrisy of lawyers who regularly photocopy things now complaining about students doing the same:

What the defendant no.2 University is doing is not different from what is being done in the Bar Association library in the premises of this Court. With the advent of photocopying, the advocates of this Court, instead of carrying books from their residences / offices to this Court for citing judgments therefrom during the course of arguments and instead of giving in advance the list of such books to the Restorer of this Court and the Restorer of this Court also taking out the court's copies of the same books for the Judges to read, and all of which was cumbersome and time consuming, started having the photocopies of the relevant judgments made from the books in the Bar Association Library of this Court. Initially the said photocopying was got done by having the book issued from the library and carrying the same to the photocopier who had, for the convenience of the advocates, been granted a licence to operate from the premises of this Court. Subsequently, for expediency and to avoid the books being taken out of the library, the Bar Association library itself allowed the photocopier to install his machine within the library premises and any advocate could get the photocopy done by having the relevant judgment photocopied within the Bar Association library by paying the cost of photocopy as is fixed by the Bar Association.

It's always nice to see a good copyright ruling -- especially one that will make it easier for the dissemination of knowledge and learning in an academic setting.

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Sad news again (sorry). Apparently The Witcher 3 was never actually planned for Linux which makes things a bit odd.


Source

Hmmm, "never were any" huh. Let's have a recap shall we.

The Witcher 3 was originally confirmed by a big front-page "coming to SteamOS" banner on Steam. This was up for a while, but it got pulled down and no announcement was ever made by Valve or the game developer about it. Everyone went silent on it.

Much later the game was again featured in Steam's big SteamOS sale. At this time I did note it was the only game not to specifically state it on the Steam store page, when all the others confirmed it somehow.

I reached out to both GOG and CD PROJEKT RED each time these happened, and I never got a reply.

I have now personally reached out to GOG for answers, although they never replied to me specifically before. Slightly annoying, as they have replied to a few other random people through emails when asking about it, but never to me directly. I am hoping they are now willing to get it properly cleared up.

This whole situation has been one odd thing after another.

What I imagine, is that it was planned, but was later dropped due to unforeseen issues. The problem here, is as always, the lack of communication. Neither party will want to blame the other, as it will sour business relations. It's likely both Valve and CDPR are at fault for it in some way or another.

The problem here is how utterly incompetent are they (either or both of them) to have it featured twice like this? Especially since the second time was specifically a sale to get people to buy it to play it on SteamOS directly.

The whole thing bloody stinks. I don't like speaking writing like this, but that's my honest opinion on the matter.

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