Quantum fintech is going to make blockchain fintech look like child’s play.
We can expect a flood of quantum fintech machine learning PhDs in couple of years.
Quantum Computers Are the Future Nukes of the IT World
21–30 of 34 posts
Re: Quantum Computers Are the Future Nukes of the IT World
#22Earlier quoted context omitted.
right, brute force your way in without a key
I would also add is there additional vulnerability just from an attacker examining the public key with crypto whatchahosy magic
I'm not sure I follow. A brute force attack generates a key which can then be tested against the target. This isn't magic, in fact, the more detailed answer above made the same argument essentially. Thought they provide a different argument suggesting that it may be possible to increase the ability to guess keys correctly.
Re: Quantum Computers Are the Future Nukes of the IT World
#23Quantum fintech is going to make blockchain fintech look like child’s play.
You can't make statements like that without elaborating on what quantum computing can possibly provide.
Two examples off the top of my head:
1. Instantaneous stock transactions from anywhere in the world. (quantum communication/entanglement) Offers a substantial RTT improvement on current trading systems.
2. High frequency trading based on quantum prediction algorithms. (Quantum information theory) May provide for HFT algorithms capable of producing predictions based on an exponential number of information streams. E.g. imagine making future investment decisions based on _all_ trades that happen in a span of time.
@ me if you decide make a company to do either of these things.
Re: Quantum Computers Are the Future Nukes of the IT World
#24Earlier quoted context omitted.
I would also add is there additional vulnerability just from an attacker examining the public key with crypto whatchahosy magic
I'm not sure I follow. A brute force attack generates a key which can then be tested against the target. This isn't magic, in fact, the more detailed answer above made the same argument essentially. Thought they provide a different argument suggesting that it may be possible to increase the ability to guess keys correctly.
I would think that if the rate of guesses is only one per second it would take eons to find the correct one. I was just wondering if there is an offline method. Just wondering how safe we can be when the news comes out.
Re: Quantum Computers Are the Future Nukes of the IT World
#25Earlier quoted context omitted.
You can't make statements like that without elaborating on what quantum computing can possibly provide.
Two examples off the top of my head: 1. Instantaneous stock transactions from anywhere in the world. (quantum communication/entanglement) Offers a substantial RTT improvement on current trading systems. 2. High frequency trading based on quantum prediction algorithms. (Quantum information theory) May provide for HFT algorithms capable of producing predictions based on an exponential number of information streams. E.g…
> High frequency trading based on quantum prediction algorithms. (Quantum information theory)
...???
Re: Quantum Computers Are the Future Nukes of the IT World
#26This is not news, it's an advertisement.
It's all fluff, vague nonsense about what quantum computers might supposedly do, and mostly wrong. The implied assumption is that a quantum computer can solve any NP problem in polynomial time, and that doesn't seem likely. And then, all of a sudden, the purpose of this nonsense becomes clear:
> For its part, ISARA has developed a new method of creating a compound or hybrid digital certificate
This is followed by lots of marketing buzzwords. Disgusting, really.
Re: Quantum Computers Are the Future Nukes of the IT World
#27Earlier quoted context omitted.
I'm not sure I follow. A brute force attack generates a key which can then be tested against the target. This isn't magic, in fact, the more detailed answer above made the same argument essentially. Thought they provide a different argument suggesting that it may be possible to increase the ability to guess keys correctly.
I would think that if the rate of guesses is only one per second it would take eons to find the correct one. I was just wondering if there is an offline method. Just wondering how safe we can be when the news comes out.
I assume you are correct. I also assume you and I are somewhat safe. You have to consider the likely hood of an individual getting a hold of one of these devices in the near future. Then again you really have to ask if there is any reason you in particular will be targeted by someone with this technology.
Re: Quantum Computers Are the Future Nukes of the IT World
#28Quantum fintech is going to make blockchain fintech look like child’s play.
Don't need quantum fintech for that, "blockchain fintech" is already rubbish.
Re: Quantum Computers Are the Future Nukes of the IT World
#29Earlier quoted context omitted.
I would think that if the rate of guesses is only one per second it would take eons to find the correct one. I was just wondering if there is an offline method. Just wondering how safe we can be when the news comes out.
I assume you are correct. I also assume you and I are somewhat safe. You have to consider the likely hood of an individual getting a hold of one of these devices in the near future. Then again you really have to ask if there is any reason you in particular will be targeted by someone with this technology.
Eventually everyone will be targeted. I have an unannounced web server serving a domain in the middle of internet nowhere and I get script attacks all the time. If some how this gets commercialized with no regulation criminals will open up shop for business practically the day after. Its like CRISPR: sure it can do some powerful things but so can your adversaries to you. I hate to think of the internet as a cloud of adversaries but that is really what it has become.
Re: Quantum Computers Are the Future Nukes of the IT World
#30Are ordinary ssh keys vulnerable?
If your ssh key relies on RSA, then yes, you're relying on the difficulty of factoring numbers; which Shor's algorithm can perform efficiently. But only if the quantum computer has enough qubits. The needed number of qubits needed to factor is a multiple of the rsa key length. Unlike a regular computer, where you can finagle two computers with 2 gigs of memory to work like a single machine wiht 4 gigabytes of memory,…
You can't have an an infinitely long key. Eventually the decripting process slows everything down to nothing.