Live data from Hacker News

How to compute a 256 bit elliptic curve key with 50M Toffoli gates

arxiv.org

1–10 of 46 posts

Re: How to compute a 256 bit elliptic curve key with 50M Toffoli gates

#6
"At 10% threshold, assuming a 10-μs code cycle and non-local connections, one key can be generated every 10 minutes using 6000 modules with 1152 physical qubits each."

1152 qubits sounds like the D-Wave chips. So does that mean 6000 D-wave chips ?

Even if you reverse the calculation, that would be 60000 minutes on 1 chip, which is about 42 days only, so. Quantum Too Good

Re: How to compute a 256 bit elliptic curve key with 50M Toffoli gates

#7
post #6

"At 10% threshold, assuming a 10-μs code cycle and non-local connections, one key can be generated every 10 minutes using 6000 modules with 1152 physical qubits each." 1152 qubits sounds like the D-Wave chips. So does that mean 6000 D-wave chips ? Even if you reverse the calculation, that would be 60000 minutes on 1 chip, which is about 42 days only, so. Quantum Too Good

Can those even perform shor's? I've read somewhere those are not suitable but I'm limited by a lack of actual knowledge here.

Re: How to compute a 256 bit elliptic curve key with 50M Toffoli gates

#9
post #3

Doesn’t this mean crypto has a major problem ?

In the realm of quantum computing, it always has

> In the realm of quantum computing, it always has

No: https://en.wikipedia.org/wiki/Post-quantum_cryptography

Re: How to compute a 256 bit elliptic curve key with 50M Toffoli gates

#10
post #6

"At 10% threshold, assuming a 10-μs code cycle and non-local connections, one key can be generated every 10 minutes using 6000 modules with 1152 physical qubits each." 1152 qubits sounds like the D-Wave chips. So does that mean 6000 D-wave chips ? Even if you reverse the calculation, that would be 60000 minutes on 1 chip, which is about 42 days only, so. Quantum Too Good

If I remember correctly, the chips in D-Wave machines are for specific problems (optimization problems mostly), so it seems very unlikely they can run the quantum circuits proposed in the article.
Post reply on HN