While recent developments in quantum computing are amazing, they pose no threat to the security of cryptocurrencies, at least not yet! Let me explain why.
Quantum computing will make it easier to perform certain operations, like factoring numbers, while others, such as inverting one-way hash functions, remain just as difficult. Further, depending on the platform, a quantum computer has a small window of opportunity to attack. These two facts make the job of a quantum attacker fairly difficult.
The design of systems such as Bitcoin and Avalanche X/P Chain ensures that, when Alice sends money to Bob, Bob's public key is not revealed to the public. Instead, the world knows only the hash of a hash (so, two separate one way hash functions) of the public key. This means that the funds at rest are quantum resistant -- the attacker simply has no information to work on, he cannot be grinding away in the background.
The public keys are exposed only when transactions are issued. So the quantum attacker only has a brief opportunity after he sees the public key in a transaction but before that transaction is incorporated into the chain. The faster the chain, the harder the problem. In the case of Bitcoin, the quantum attacker needs to break the key within 5 to 30 minutes. For Avalanche, the attacker only has 1 second, if that.
Finally, we already have a pull request for Avalanche that introduces lattice cryptography. Lattice-based crypto is built from the ground up to resist quantum attacks. We don't ordinarily use it because the signatures are about 10x bigger.
Overall, (1) we're seeing amazing work on quantum computing that we'd love to see more of, for the good of humanity, (2) realistic attacks on cryptocurrencies are still a long ways off, and (3) Avalanche is ready to roll out quantum resistant signatures very quickly once we decide that quantum attacks are on the horizon. For now, let's all watch how quantum computers develop over the next few decades.
@MatthewBerman Don’t. At first attempt my kid offered to fork it with a similar name. At second he told me about his big idea of publishing a malware for cryptojacking.
@demirelo Nonsense. Web wallet is smoother. This mandatory transition seems unnecessary and inconvenient. Installing Chrome everywhere? A total nightmare.
@MedibookTR ölçülebilen ölçülemeyen tüm şartların etkisiyle kırılgan gruplar harici hasar kapasitesi düşmekte olan bir pandeminin post-peak safhasındayız. Evet, pandemi bitiyor.
@MedibookTR 1. Doğrudur.
2. Seyahat, kapanma şartlarının hafifletilmesi de tam tersi yönde bir vektördür.
3. Mart vs Ağustos 2022 verileri karşılaştırıldığında yaş gruplarına göre kümülatif vaka ağırlıklı ortalama yaşı düşerken, kümülatif ölüm ağırlıklı ortalama yaşı yükselmiş. Velhasıl, ↓
@DilekOzcengiz Boş retorik, vasat sözelcilik. İnsan karar alma mekanizması her belirsiz, rastlantısallık içeren ve doğrusal olmayan karmaşık sistem gibi modellenebilirdir. Teşhis, tedavi veya muğlak bulduğunuz hiç bir süreç istisna değildir.