Topic: Quantum Key Distribution (QKD) and Bitcoin Wallets: A Thought Experiment (Read 137 times)

My very problem there my guy. Adding QKD to a security system is like adding gallium to aluminum you know. It corrodes the whole ensemble leaving it so vulnerable to getting fucked by hackers and all types of bad actors over the internet. If you leave it as it without adding QKD, long as you keep it out of the internet you're pretty much safe, as if to say that it's the internet that's the problem and not the lack of security thereof you know!

Also true what you said there. With quantum computing reaching public access it really begs the ethical conundrum of "what in the hell are we allowed to release to the public?" cause there's only time before the rest of the internet figures out how to crack open these things and use it for all sorts of illegal activities.

QKD is a method for securing communication. Bitcoin does not use encrypted communication or even encryption. Bitcoin uses hashes and signatures, neither of which are applicable uses of QKD.

Perhaps I am being narrow-minded. If you show me how any kind of key exchange could be used in Bitcoin, then I might agree that there is something to discuss.

So a quantum computer can "crack" private keys while the user is trying to operate the wallet and QKD can protect the user, right? How do they actually do it, is it through public keys by any chance or something else? If it is through password cracking, this topic should be discussed with password/safety developers of wallets. But if it is related directly to private keys, then what about pending transactions in  mempool? QKD can't protect the keys at that stage.

Ps, if it is open source, you should link to github, if it's not, then there is no clients around here for centralized third party security services!

Yes, cold wallets are difficult devices to hack but in a possible scenario where quantum computers are usable then no encrypted key would be safe because they would be able to corrupt it in a very short time and from the latest news that I have learned we have about 20 years for those who deals with developing the "defense" to super quanta is able to find a solution to encryption.  Because in that case not only the Bitcoin world would be in danger but also everything we know today including banking systems and obviously military systems, aviation, etc.

A little theoretical, but still something within the laws of nature and a feasible one at that too, at least within the span of our lifetimes.

I suppose it is a good thing to add not sooner than quantum computing, since if the tech comes around now, and we immediately implement it on Bitcoin Cold wallets, we're basically giving the hackers a headstart at cracking its inner workings you know? So timing plays a crucial part in this race too. Another would be the fact that we don't really need it as of the moment, cause Cold Wallets as they stand today are just as hard to crack and even harder to track. Adding another layer of security over it is a little overkill.

Ultimately, the fact that it needs direct connection between the transmitter of the QKD and the receiver poses a large question mark on the concept of decentralization. Hell it could even pose a threat cause it basically just feels like you're making a centralized exchange with extra steps, and I don't need to tell you how prone these CEXs from hackers and robbery.

I understand your concerns about the use of AI in generating content, and I appreciate your candid feedback. However, I would like to clarify that the content of my posts is not AI-generated. I am a real person, with a genuine interest in cryptography and its application in blockchain technology.

AI content checkers, while useful in some contexts, are not infallible. They rely on algorithms and patterns to make their determinations, and these can sometimes lead to false positives. It's quite surprising that a score of 51.63% led to the conclusion that the content was AI-generated. This highlights the inherent limitations of such tools and underscores the importance of human judgement/brain in interpreting their results.

As for your comment about being a newbie, I can assure you that I am not new to this field. I have built a layer 1 blockchain and a privacy system from scratch, and I have a deep understanding of the technical aspects of Bitcoin and blockchain technology. My intention in participating in this forum is to engage in meaningful discussions and learn from the collective wisdom of this community.

I hope this clears up any misconceptions. I look forward to continuing our discussion on Quantum Key Distribution (QKD) and its potential application in securing Bitcoin wallets.

Another Ai generated content. Op, thread is Ai generated and most of your reply as well here is what I found.



Also decided to ask gpt to make




As a newbie, you should not engage yourself in using Ai, as this would not do you any good but reduce your knowledge and skill to comprehend. You just over did it, all your replies are also ai generated, I don't know what you newbies think Bitcointalk is all about. stop trying to outsmart yourself, it wouldn't help you.

You're absolutely correct in stating that Bitcoin doesn't rely on encrypted communication for its operation. The Bitcoin protocol operates on a public ledger where all transactions are visible, and it uses cryptographic techniques, not for encryption of data, but for ensuring the integrity and authenticity of transactions.

However, the discussion around Quantum Key Distribution (QKD) isn't about encrypting the communication within the Bitcoin network, but rather about securing the private keys that are crucial for authorizing Bitcoin transactions.

In the current setup, these private keys are secured using traditional cryptographic techniques. While these techniques have proven to be robust, the advent of quantum computing poses a potential threat. Quantum computers, with their ability to perform complex calculations at an unprecedented speed, could theoretically break these cryptographic techniques, thereby compromising the security of the private keys.

This is where QKD could potentially come into play. By using QKD, we could secure the private keys of Bitcoin wallets with a level of security that is theoretically resistant to quantum attacks. This doesn't change the way Bitcoin operates, but rather enhances the security of the wallets that hold the Bitcoins.

I hope this clarifies the context of the discussion around QKD and Bitcoin. I appreciate your input and look forward to further discussions on this topic.

Thank you for your insightful response. You bring up a valid point about the security of cold storage wallets and the role of operating systems and antivirus/firewall developers in enhancing security at the entry point.

Indeed, cold storage wallets provide a high level of security by keeping private keys offline and thus out of reach of potential online threats. However, the transfer of funds from cold storage to a hot wallet for transactions still presents a window of vulnerability. This is where Quantum Key Distribution (QKD) could potentially come into play, providing an additional layer of security during these critical moments.

As for your suggestion about involving operating system and antivirus/firewall developers, it's a compelling idea. QKD could indeed be beneficial at the 'gate' as you put it, providing a robust line of defense against quantum threats at the system level. However, it's important to note that the application of QKD is not limited to a single point in the security chain. Just as a physical safe can benefit from multiple layers of security (a lock, an alarm system, a secure location), so too can a Bitcoin wallet.

The integration of QKD at both the system level (operating systems, antivirus/firewall) and the application level (Bitcoin wallets) could potentially provide a comprehensive security solution against quantum threats. This is not to say that one application is superior to the other, but rather that they could complement each other in enhancing overall security.

I appreciate your perspective and look forward to further discussions on this topic.

Bitcoin doesn't rely on encrypted communication so I don't know where it might be applicable.

Deposit to a cold storage wallet, problem solved. Private keys have their own built in security system, if you are interested, you should go talk to operating system developers and antivirus/ firewall developers, if this thing is good then it should be used at the gate not in front of the safe in basement!

Dear Bitcointalk Community,

As we continue to explore the boundaries of cryptography and its application in the realm of digital currencies, I find myself drawn to the intriguing field of quantum cryptography, specifically Quantum Key Distribution (QKD). The principles underlying QKD, which allow for the creation of a shared secret key with the unique ability to detect eavesdropping, present an interesting avenue for exploration in the context of Bitcoin.

However, Bitcoin's decentralised nature poses a unique challenge for implementing QKD. The necessity of a direct communication link between two parties for QKD seems to preclude its use for transaction verification within the Bitcoin network.

Yet, there may be another way to harness the potential of QKD in the Bitcoin ecosystem: securing Bitcoin wallets. The private keys of Bitcoin wallets, which are essential for authorizing transactions, could be safeguarded using QKD, thereby providing an additional layer of security against potential quantum threats.

This line of thought leads me to pose the following questions to this community:

• Is it technically feasible to apply Quantum Key Distribution (QKD) to enhance the security of Bitcoin wallets against potential quantum computing threats?
• What technical hurdles might we encounter in implementing QKD for securing Bitcoin wallets? Given the requirement for a direct communication link in QKD, how might we ensure the secure distribution of quantum keys between a wallet and its backup or between two parties in a transaction?
• Would the integration of QKD necessitate significant modifications to the current wallet infrastructure? Could it potentially impact the operation of Bitcoin wallets?
• Are there any ongoing projects or research initiatives exploring the use of Quantum Key Distribution in securing Bitcoin wallets or other cryptocurrency wallets?

I believe this could be a fruitful area of exploration for the future of Bitcoin security. I look forward to hearing your thoughts and insights on this matter.

Best Regards,
GrumpyKitten