21–30 of 293 posts
Looks like the exercise left to the reader has been completed: https://www.blockchain.com/btc-testnet/tx/182bf9202649ded3a6...
Can someone explain how this was executed?
I wonder how strong would Elliptic Curve Cryptography be compared to other methods if there is a major breakthrough in quantum computing.
There will be a point in time where there are just a few quantum computers that can break everything before the general public has access to quantum computing. Can crypto work in that scenario? Normal computers wouldn't be able to work with the beastly algorithms a quantum computer could handle.
Looks like the exercise left to the reader has been completed: https://www.blockchain.com/btc-testnet/tx/182bf9202649ded3a6...
> steal my bitcoins from my 3rd identity wallet (mgh4VjZx5MpkHRis9mDsF2ZcKLdXoP3oQ4) to your own wallet ;) If done successfully, the 3rd wallet will show “Final Balance” of 0. At the time of writing this is 0.00095000 BTC, as we intended and expected. Can someone explain how this was executed?
I wonder how strong would Elliptic Curve Cryptography be compared to other methods if there is a major breakthrough in quantum computing.
I wish this were talked about more. Quantum computing is the biggest long-term threat to crypto imo. What's the plan once elliptic curve cryptography can be broken? There will be a point in time where there are just a few quantum computers that can break everything before the general public has access to quantum computing. Can crypto work in that scenario? Normal computers wouldn't be able to work with the beastly al…
I wonder how strong would Elliptic Curve Cryptography be compared to other methods if there is a major breakthrough in quantum computing.
Shor's algorithm, which runs partially on a classical computer and a portion on a quantum computer, breaks elliptic-curve cryptography.
I wonder how strong would Elliptic Curve Cryptography be compared to other methods if there is a major breakthrough in quantum computing.
I wish this were talked about more. Quantum computing is the biggest long-term threat to crypto imo. What's the plan once elliptic curve cryptography can be broken? There will be a point in time where there are just a few quantum computers that can break everything before the general public has access to quantum computing. Can crypto work in that scenario? Normal computers wouldn't be able to work with the beastly al…
Earlier quoted context omitted.
I wish this were talked about more. Quantum computing is the biggest long-term threat to crypto imo. What's the plan once elliptic curve cryptography can be broken? There will be a point in time where there are just a few quantum computers that can break everything before the general public has access to quantum computing. Can crypto work in that scenario? Normal computers wouldn't be able to work with the beastly al…
There's a lot of research and practical work on quantum-proof cryptography which is already in use in some cryptocurrencies - 'just' need to hardfork and update it when it's ready for Bitcoin
Kind of surprised Andrej has time to work on anything besides self-driving cars
https://twitter.com/karpathy/status/1407378320551923718 :) But more seriously, I just really love learning and worked on this on the side, in small increments in between the cracks, and purely from interest for fun.
If I may, let me ask you an unrelated question that just 'popped in my head' only now but is related to your recent presentation at CVPR: Are you guys at Tesla fusing video with audio data for self-driving?
Just curious. I ask because (a) sound waves at frequencies detectable by the human ear appear to be quite important for both routine and edge-case situations (e.g., sounds of other vehicles braking/screeching/accelerating/passing, sirens of ambulances/police cars/fire trucks, bursts of honks from other vehicles, people suddenly shouting/screaming nearby), and (b) audio and video signals are already synchronized, so I imagine fusing them should be more straightforward (e.g., there's already some research out there on applying deep learning to video clips with audio).
Looks like the exercise left to the reader has been completed: https://www.blockchain.com/btc-testnet/tx/182bf9202649ded3a6...
> steal my bitcoins from my 3rd identity wallet (mgh4VjZx5MpkHRis9mDsF2ZcKLdXoP3oQ4) to your own wallet ;) If done successfully, the 3rd wallet will show “Final Balance” of 0. At the time of writing this is 0.00095000 BTC, as we intended and expected. Can someone explain how this was executed?
>secret_key3 = int.from_bytes(b"Andrej's Super Secret 3rd Wallet", 'big') # or just random.randrange(1, bitcoin_gen.n)
(Obviously a private key intended for actual use generally wouldn't just be some ASCII bytes of an English phrase and wouldn't be posted publicly. Though, of course, there have been instances of both...)