BC QUANTUM

Saved by @floyd_ndlovu

Alan Szepieniec
@aszepieniec 4 years, 4 months ago 384 views

Save to PDF Share See On Twitter

https://t.co/Lhn4i1EGfq Time for a thread. 1/13

I read this article so you don't have to. 2/13

Can quantum computers attack crypto in ways that current supercomputer clusters can't? Yes. 3/13

But quantum computers don't exist yet (as far as we know), and they can only meaningfully attack some crypto algorithms -- typically public key algorithms. Except for rare edge cases, symmetric crypto remains mostly unaffected. 4/13

There is an active domain of research called 'post-quantum cryptography'. It is populated by mathematicians and computer scientists, who develop cryptography that can serve as a drop-in replacement for the affected algorithms. 5/13

The company in question is run by physicists. As a rule, physicists are clueless about cryptography. 6/13

The attack involves quantum annealing, which is a physical process akin to brute force search. It does not outperform Grover's algorithm in terms of computational complexity. 7/13

Grover's algorithm is the quantum analogue of brute force search. You need a quantum computer to implement Grover's algorithm, but you might not need a quantum computer to do quantum annealing. 8/13

Grover's algorithm is not enough to jeopardize the security of AES. You need an algorithmic or mathematical insight to do that. Such an insight would make the discoverer instantly famous in the crypto world. 9/13

AES is not a hash function and makes no claims about inversion being hard. It is not clear if this implication is the result of the reporter's confusion or if Terra Quantum's claim to fame actually is being able to invert AES. 10/13

Terra Quantum has developed an alternative to using AES for encryption based on quantum key distribution. If AES is secure, then there is no merit to quantum key distribution. In order to sell QKD, you need AES to be insecure. 11/13

How convenient that this breakthrough result about the supposed insecurity of AES is found just as Terra Quantum receives a patent for its technology! The convenience would be complete if they were in the middle of fundraising. 12/13

I have written about quantum key distribution before. TLDR: don't. https://t.co/4lxnot8pN4 13/13

You May Also Like

Brian Cates
@drawandstrike

Trump is gonna let the Mueller investigation end all on it's own. It's obvious. All the hysteria of the past 2 weeks about his supposed impending firing of Mueller was a distraction. He was never going to fire Mueller and he's not going to

BREAKING: President Donald Trump has submitted his answers to questions from special counsel Robert Mueller
— Ryan Saavedra (@RealSaavedra) November 20, 2018

Mueller's officially end his investigation all on his own and he's gonna say he found no evidence of Trump campaign/Russian collusion during the 2016 election.

Democrats & DNC Media are going to LITERALLY have nothing coherent to say in response to that.

Mueller's team was 100% partisan.

That's why it's brilliant. NOBODY will be able to claim this team of partisan Democrats didn't go the EXTRA 20 MILES looking for ANY evidence they could find of Trump campaign/Russian collusion during the 2016 election

They looked high.

They looked low.

They looked underneath every rock, behind every tree, into every bush.

And they found...NOTHING.

Those saying Mueller will file obstruction charges against Trump: laughable.

What documents did Trump tell the Mueller team it couldn't have? What witnesses were withheld and never interviewed?

THERE WEREN'T ANY.

Mueller got full 100% cooperation as the record will show.

Robin Berjon
@robinberjon

Recently, the @CNIL issued a decision regarding the GDPR compliance of an unknown French adtech company named "Vectaury". It may seem like small fry, but the decision has potential wide-ranging impacts for Google, the IAB framework, and today's adtech. It's thread time! 👇

It's all in French, but if you're up for it you can read:
• Their blog post (lacks the most interesting details): https://t.co/PHkDcOT1hy
• Their high-level legal decision: https://t.co/hwpiEvjodt
• The full notification: https://t.co/QQB7rfynha

I've read it so you needn't!

Vectaury was collecting geolocation data in order to create profiles (eg. people who often go to this or that type of shop) so as to power ad targeting. They operate through embedded SDKs and ad bidding, making them invisible to users.

The @CNIL notes that profiling based off of geolocation presents particular risks since it reveals people's movements and habits. As risky, the processing requires consent — this will be the heart of their assessment.

Interesting point: they justify the decision in part because of how many people COULD be targeted in this way (rather than how many have — though they note that too). Because it's on a phone, and many have phones, it is considered large-scale processing no matter what.

Advertisement

foone
@Foone

So I was talking to @gewt about Job: A Comedy of Justice and I came up with a theory that I think explains why Heinlein's late-period work is so kinda-terrible and why I still enjoy it so much

So Heinlein had always been very interesting in the short parts of his novels, like the little snippets inside chapters. He had a very fun writing style, and wrote some fun dialogue with fun characters, right?>
It probably comes from how much of his early stuff was short fiction

And I think what happened with a lot of his longer works is that he'd just start writing fun bits and hope it would end up going somewhere or having a bigger plot by the end. like eventually he'd figure out where this was going, then go back and rewrite it into a cohesive whole

and I'm sure he had editors that'd help this process. No editor would let you publish something as rambly and changing-gears-every-other-chapter as The Number Of The Beast, for example... unless you were God-King Of Science Fiction 1980s Robert Heinlein.

so basically I think what happened is that by the 80s (when he was in his seventies!!) he lost the drive to go back and rewrite and he was too Untouchable for editors to make him.

Anu Satheesh
@AnuSatheesh5

Sri Mridanga Saileswari Temple Muzhakkunnu, Kannur KERALA

The temple is established by Parasurama and it is one among 108 Durga temples.
Devi will answer all the prayers of her devotees who pray to her with utmost devotion lighting the ghee deepam.

It is the family diety of Kerala Varma Pazhassi Raja.
Devi is present in three forms Kali, Saraswati and Lakshmi.

Legend...👇
Once a Mridungam ( musical instrument) shaped rock fell from heaven here.
@SriramKannan77

Devi originated in the form of Mridangam and Parasurama captivated the essence of Devi into a Vigraham. Vigraham is made of Panchaloham.
Kathakali, an art form of Kerala originated here.

Temple Vigraham was stolen 3-4 times, but because of power of Devi all the attempts were failure. Police records says that Whenever the thieves try to steal, they lose their senses, and they will be in a confused state. So they will abandon the idol.
🕉

Jaya_Upadhyaya
@Jayalko1

SRISAILAM: KASHI OF THE SOUTH (AP)
#andhratemples

The divine abode of Mallikarjuna Swamy (Jyotirlinga) and Devi Brahmaramba (Shaktipeeth).

When Ganesha was married before Kartikeya, he left in anger to Kraunch mountain. Shiva and Parvati also followed him there.

Shiva assumed the form of Jyotirlinga and resided on the mountain by the name of Mallikarjuna. Mallika means Parvati while Arjuna is another name of Shiva
It is also said that once, a princess Chandravathi, saw a cow shedding milk on a rock resembling a shivlingam.
@DubeyYash1911

She started praying to the lingam daily and used to offer jasmine (mallika pushpam) daily. Pleased Shiva appeared before her and agreed to wear jasmine garland (mallika pushpmala) on his head permanently. Since then, Shiva became known as Mallikarjun Swamy.

At this place, Shakti took the form of Bhramaram (bee) to kill Arunasur and settled as Bhramaramba Devi. The place is a Shakti Peeth as the neck portion of Devi Sati fell here.

It is said that by merely seeing the hill, one is emancipated from all his sins and worries.