Questions tagged [quantum-computing]

Questions about quantum computers that make direct use of quantum-mechanical phenomena, such as superposition and entanglement, to perform operations on data.

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3 answers
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Do stealth address only work with elliptic curve cryptography ?

Monero uses elliptic curve for stealth address generation. And all the things i have read about stealth addresses mention elliptic curve. My question is are there other cryptosystems out there which ...
0 votes
0 answers
36 views

What does breaking the discrete logarithm problem imply for anonymity? [duplicate]

If the discrete logarithm problem is broken (either through a mathematical breakthrough or a quantum computer) what are the implications for the history of Monero transactions? Will past anonymity be ...
0 votes
1 answer
228 views

Quantum-safe stealth addressing

Many of you will know that the stealth addressing system used in Monero is vulnerable to quantum attacks, due to it being based on quantum-weak cryptography. Although not all payments would be ...
0 votes
1 answer
109 views

Post quantum signature scheme integration in Monero

I have a pretty ambitious experiment in mind, and more of it is like testing how would a crypto currency behave if it would have some post quantum keys, like 2KB of key sizes and signatures. So I ...
2 votes
1 answer
101 views

Can someone suggest a better way to test transfers for development testing?

I have made an experimental fork which was forked from the Monero v0.13 release. The forks main focus is to test post-quantum signature keys for Monero. Although it's working, it still has a lot of ...
0 votes
0 answers
45 views

Adding additional output field in transaction for output validation

Good day, I am trying to integrate a post quantum signature scheme into the Monero codebase, first I had so many issues with key sizes and key derivations, but right now it seems to be partially ...
4 votes
1 answer
1k views

Will quantum computer break ring signatures?

I knows quantum computer breaks elliptic curve math but what about ring signature? thanks
4 votes
1 answer
224 views

What alternative cryptography could be used in the future to protect Monero against quantum computers?

I know most cryptography Monero uses relies mostly on EC crypto which would be easily broken by a quantum computer powerful enough. What options does Monero have in the future to protect itself?
3 votes
1 answer
319 views

How would the privacy of monero be affected by a quantum computer?

So I was wondering, if say a quantum computer is ever made could it be used to break the privacy of past transactions? Would that mean at that someone could just work though the blockchain and De-...
35 votes
1 answer
3k views

How vulnerable is Monero to Quantum Computing?

Elliptic curve cryptography, which is used in Monero, is vulnerable to QC. Would Monero be more vulnerable than Bitcoin, because the addresses contain public keys, not hashes of public keys? What ...
11 votes
1 answer
403 views

Is there a formal plan in place for the transition to Quantum Computing? If so, what is it? [closed]

Here is a list of the most relevant facts and assumptions regarding my concern: Monero is a POW (proof-of-work) cryptocurrency. A risk of POW cryptos is the 51% attack, which is possible when a bad ...