Alt-Coin Quantum Resistance Ledger (QRL)

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Re: Alt-Coin Quantum Resistance Ledger (QRL)

Postby SilverDoge » Thu Sep 14, 2017

Article from WSJ: Nascent Quantum Computing Poses Threat to Cybersecurity

Unfortunately it is behind a paywall, so for those who aren't subscribed, the text of the article is also below.

https://blogs.wsj.com/cio/2017/09/13/nascent-quantum-computing-poses-threat-to-cybersecurity/

"LONDON – The threat of a cyber attack by hackers or rogue nation states with access to quantum computers is becoming real enough that scientists and public officials are convening here this week in part to urge companies to develop a plan for defense.

More than 150 cryptographers, business executives and public officials attended the first day of the three-day Quantum Safe Workshop, hosted by organizations including the University of Waterloo’s Institute for Quantum Computing, the European Telecommunications Standards Institute and United Kingdom’s Quantum Technology Hub for Quantum Communications.

When the conference was first founded in 2013, the possibility of a quantum computing cyber threat becoming a reality within a decade was not as serious. Now, as companies are advancing toward building the world’s first large-scale quantum computer sooner than previously thought, the threat to widely used encryption algorithms could materialize within 10 years, said Michele Mosca, co-founder of the Institute for Quantum Computing at the University of Waterloo.

“Every year the dial is turning, it’s heating up non-trivially,” Dr. Mosca said in an interview at the event.
Classical computers, including supercomputers, use binary digits, or bits, which can either be 0s or 1s. Quantum computers use quantum binary digits, or qubits, which represent and store information in both 0s and 1s simultaneously. The computers have the potential to sort through a vast number of possibilities — more than the number of atoms in the universe — to come up with a probable solution. The calculations could be completed as fast as a fraction of a second.

A scalable, fault-tolerant quantum computer has not been built yet, though Dr. Mosca says there’s a chance it could be built within 10 years, which would pose a major threat to widely used algorithms including RSA.

The RSA algorithm is vulnerable because it’s based on integer factorization, which is essentially reverse multiplication. It would take classical computers, even supercomputers, several years to quickly factor large numbers that are 500 or 600 digits long, which means solving for integer factorization is impractical and inefficient. Quantum computers, though, are capable of solving integer factorization problems perhaps trillions of times faster than a classical computer, as WSJ has previously reported.

RSA, named after its developers Ron Rivest, Adi Shamir and Leonard Adleman, is at the heart of today’s encryption methods and is used for securing e-mail, online banking, e-commerce and electronic communications such as those in the health-care industry. Executives at RSA Security LLC, the cybersecurity company founded by RSA’s inventors and now a subsidiary of Dell EMC Infrastructure Solutions Group, told the WSJ previously that new cryptographic algorithms will be available in the future.

Panelists at the conference said the threat of a quantum computing-based attack also applies to devices connected to the internet, ranging from TVs to cars and connected lights.

Brian LaMacchia, head of the security and cryptography team at Microsoft Research and a Microsoft Corp. distinguished engineer, said executives should begin taking an inventory of all of the systems using public key cryptosystems such as RSA and develop a formal plan for how to guard them against quantum computers.

“Understand that a transition is coming and make sure you’re not creating a future problem for yourself,” Dr. LaMacchia said in an interview at the event. He added that more Microsoft enterprise customers are now asking for briefings on quantum computing and cryptography systems that could potentially help thwart a quantum computing attack.

He also urged companies looking to procure new cybersecurity services from vendors to ask what their plans are for integrating so-called quantum-safe or quantum-resistant algorithms that could potentially thwart a quantum computing attack. “If you don’t ask for it, they aren’t necessarily going to provide it,” he said.

The topic is becoming top of mind for some service providers, including British Telecommunications plc, owned by BT Group PLC.

“The proliferation of access points, the amount of data that all our devices are using … means that we live in a relatively vulnerable world and quantum computing is adding a whole new dimension to the vulnerability,” said Luke Beeson, vice president of security for BT’s United Kingdom and global banking and financial markets customers.

The company is currently exploring a technique called quantum key distribution, which uses the principles of quantum physics where particles can exist in two states at once and communicate with each other across vast distances, to share encryption keys between two users. The effort will hopefully guard against a quantum computing-based hack during encryption-key transmission, Mr. Beeson said.

Quantum key distribution and new quantum-resistant algorithms for encryption should be explored simultaneously and companies, public officials and researchers shouldn’t wait, said Sir Peter Knight, chair of the Quantum Metrology Institute at the United Kingdom’s National Physical Laboratory, at the event.

“One needs to start working on it now,” he said. “A decade is not a long time.”
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Re: Alt-Coin Quantum Resistance Ledger (QRL)

Postby SilverDoge » Sat Sep 16, 2017

Blog update for QRL (highly technical):

https://medium.com/the-quantum-resistant-ledger/qrl-improvements-i-63813234ef23

Also, one of the most common questions about QRL is how can we know it is quantum secure, if there is not yet a quantum computer capable of hacking the public-private key-pairs of digital signatures for bitcoin or other crypto? While I don't have a simple answer for this, apparently it is within the body of this document which I need to read in full. It is 22 pages and looks fairly technical to me. So I'll post it here in case anyone is interested in the details:

https://eprint.iacr.org/2011/484.pdf
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Re: Alt-Coin Quantum Resistance Ledger (QRL)

Postby SilverDoge » Mon Sep 18, 2017

A couple quotes from an article published in Nature Journal, highlighted here https://www.tue.nl/en/university/news-and-press/news/13-09-2017-the-dark-side-of-quantum-computers/?lipi=urn%3Ali%3Apage%3Ad_flagship3_feed%3Bk5CTLI89Riq3%2Fu0%2FVrL%2Bpw%3D%3D#top

Quantum computers make use of quantum-mechanical properties and can therefore solve some particular problems much faster than our current computers. This will be useful for calculating models for weather forecasts or developing new medicine. However, these operations also affect protection of data using RSA (public-key cryptosystem) and ECC (elliptic curve cryptography). With today's technologies these systems will not be broken in a hundred years but a quantum computer will break these within days if not hours.

In their Nature publication Lange and Bernstein explain that a certain quantum algorithm, namely Shor's algorithm, breaks all cryptographic techniques that are currently used to establish secure connections on the Internet.
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Re: Alt-Coin Quantum Resistance Ledger (QRL)

Postby SilverDoge » Mon Oct 16, 2017

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Re: Alt-Coin Quantum Resistance Ledger (QRL)

Postby Marchas45 » Mon Oct 16, 2017

Why the hell do they need a store to sell merchandise? Don't they have enough funds? :lol:
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Re: Alt-Coin Quantum Resistance Ledger (QRL)

Postby SilverDoge » Sat Nov 18, 2017

Kaspersky Internet security and Anti-Virus company's take on the Quantum Computing threat:

That is why today’s quantum computers are not usable for breaking your SSL certificate, but the situation may change in 5 years.


Note - this article is dated 2013 :shock:

https://www.kaspersky.com/blog/quantum-computers-and-the-end-of-security/2852/
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Re: Alt-Coin Quantum Resistance Ledger (QRL)

Postby Bucketeer » Mon Nov 20, 2017

SilverDoge wrote:Kaspersky Internet security and Anti-Virus company's take on the Quantum Computing threat:

That is why today’s quantum computers are not usable for breaking your SSL certificate, but the situation may change in 5 years.


Note - this article is dated 2013 :shock:

https://www.kaspersky.com/blog/quantum-computers-and-the-end-of-security/2852/


Hey Travis, I haven't followed anything about QRL, and I've never looked at it. Are you still bullish on QRL?
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Re: Alt-Coin Quantum Resistance Ledger (QRL)

Postby SilverDoge » Mon Nov 20, 2017

Bucketeer wrote:
SilverDoge wrote:Kaspersky Internet security and Anti-Virus company's take on the Quantum Computing threat:

That is why today’s quantum computers are not usable for breaking your SSL certificate, but the situation may change in 5 years.


Note - this article is dated 2013 :shock:

https://www.kaspersky.com/blog/quantum-computers-and-the-end-of-security/2852/


Hey Travis, I haven't followed anything about QRL, and I've never looked at it. Are you still bullish on QRL?


NEO & QRL are my two largest positions. So, yes! MainNet won't launch until next year though. Hopefully 1st quarter.
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Re: Alt-Coin Quantum Resistance Ledger (QRL)

Postby Bucketeer » Mon Nov 20, 2017

QRL is pretty cheap. I've tried to read the White Paper, but I don't understand it. Quantum computers will make us all slaves.

I don't understand ANYTHING about NEO, and I'm not going to debate that issue. I think Qtum looks like a better play for China. But QRL?

Who will be the World's powerhouse 25-50 years from now?

I'd bet on China, and that they will rule Asia and Australasia. American manufacturing is gone, and unless we have WW3, it's not coming back. Quantum computers will be in common place by then. Basically, we'll be screwed no matter what happens.

QRL makes sense, but do you think that QRL will be able to buy or develop a Quantum computer, or a Crypto currency or fuel, with a limited budget, versus a country as big as China, Russia, or the USA (NSA/CIA/NASA).

I keep up to date on the prices, but I think QRL is a loser. What am I missing in this story?

As adaptation of Bitcoin and all of the the other coins continues, hardware wallets will continue to grow and evolve. I like my KeepKey (thank you for your recommendation), I doubt if it costs more that $25 to produce, and competition is going to lower the price as Crypto adaptation evolves. When Quantun computing arrives. Crypto will be a strong market and hardware wallets will be the norm.

It saved me from a dumb a## mistake. I do some silly stuff after 5 or 6 drinks and get on the computer.

Give me a reason why I should buy the bull story on QRL, I'm not debating you, but I don't understand QRL either. You know I'm not a buyer of ICO's and I'm mostly a Bitcoin guy. Help me to understand. Thanks Travis!
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Re: Alt-Coin Quantum Resistance Ledger (QRL)

Postby SilverDoge » Tue Nov 21, 2017

Bucketeer wrote:QRL is pretty cheap. I've tried to read the White Paper, but I don't understand it. Quantum computers will make us all slaves.

Who will be the World's powerhouse 25-50 years from now?

I'd bet on China, and that they will rule Asia and Australasia. American manufacturing is gone, and unless we have WW3, it's not coming back. Quantum computers will be in common place by then. Basically, we'll be screwed no matter what happens.

QRL makes sense, but do you think that QRL will be able to buy or develop a Quantum computer, or a Crypto currency or fuel, with a limited budget, versus a country as big as China, Russia, or the USA (NSA/CIA/NASA).

I keep up to date on the prices, but I think QRL is a loser. What am I missing in this story?

As adaptation of Bitcoin and all of the the other coins continues, hardware wallets will continue to grow and evolve. I like my KeepKey (thank you for your recommendation), I doubt if it costs more that $25 to produce, and competition is going to lower the price as Crypto adaptation evolves. When Quantun computing arrives. Crypto will be a strong market and hardware wallets will be the norm.

Give me a reason why I should buy the bull story on QRL.


Here goes. QRL will not be buying a quantum computer to my knowledge, but it also isn't necessary. QRL is not in a race against China or another nation to develop quantum technology. That is not the purpose. The purpose is to have a have a 100% quantum safe crypto, that is unhackable by future quantum computing capabilities. What do I mean? Classical computers can't break the Elliptical Curve Cryptography (ECDSA) that is associated with the public-private key pairs that are associated with the encryption of all crypto currencies (and many other facets of the world). It takes too much time and computing power to try to brute force the password (private key) if one knows the public key address.

With future quantum computing, that hurdle might be overcome. Then a quantum computer could brute force your private key merely by knowing the public key address. Therefore, if you've ever sent any bitcoin out on a public address, and still have a balance on that same address - the public address is known and potentially hackable REGARDLESS of where you crypto is stored (hardware wallet or online hot wallet). Because the quantum computer can hack the private key pair it is basically making a copy of the private key, and your funds could then be stolen.

QRL therefore, is using a different style of public-private key pair encryption. They are using XMSS signature schemes. They have a Quantum cryptographer on their team. I can't explain all the technical data behind it, but suffice it to say that the reason they've gone this route is so that a brute force attack against QRL won't be possible with this signature scheme. This is ground breaking work. They will be the first crypto 100% secure against quantum hacking.

Now could bitcoin or any other crypto change their blockchains to become like QRL? Yes it is possible. But there are 2 considerations. First, look at how hard it is to get consensus to change anything in bitcoin. So even if consensus were achieved, and a fork were authorized, it still takes time. And many won't believe it is a real threat to defend against until it is too late. Secondly, it would require all the old bitcoin storage to upgrade into new quantum resistant wallets once developed. There will be a large percentage of people (for whatever reason) that won't upgrade, will still be at risk, and will have their coins stolen. This will potentially cause a panic.

So my question is, what is the downside to owning a quantum secure crypto? If it has all the other features of a crypto currency (and is Proof of Stake as well and thereby not wasting electricity like PoW), but also has this quantum secure feature - why not own it?

I understand that in the crypto world, thinking 2 months ahead is like 2 years. So addressing a threat that might be 2-10 years down the road seems like a crypto eternity. But this is why it is cheap now. The perfect time to get in, and be patient.

http://andrea.corbellini.name/2015/05/30/elliptic-curve-cryptography-ecdh-and-ecdsa/

The QRL team has a 3 minute "explainer" video coming out in December. I will definitely post that here as well.
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Re: Alt-Coin Quantum Resistance Ledger (QRL)

Postby SilverDoge » Wed Nov 22, 2017

Maybe somebody saw my post and decided to join the bandwagon?

QRL Bump.png
QRL Bump.png (30.85 KiB) Viewed 8 times
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