Crypto is under threat of Quantum computers

[DapC]

I read the topic carefully. Of course, you can condemn the author and those who support him, for unreasonable panic. But here, for example, is another objective and independent scientific opinion about the quantum vulnerability of the blockchain:   

“Quantum computers put blockchain security at risk. Bitcoin and other cryptocurrencies will founder unless they integrate quantum technologies, warn Aleksey K. Fedorov, Evgeniy O. Kiktenko and Alexander I. Lvovsky.”

“By 2025, up to 10% of global gross domestic product is likely to be stored on blockchains1. A blockchain is a digital tool that uses cryptography techniques to protect information from unauthorized changes. It lies at the root of the Bitcoin cryptocurrency2. Blockchain-related products are used everywhere from finance and manufacturing to health care, in a market worth more than US$150 billion.
When information is money, data security, transparency and accountability are crucial.
The blockchain business needs to update its existing software to use one-way cryptographic functions that are equally hard to reverse using conventional or quantum computers9. Until these post-quantum solutions are established or standardized, platforms must be flexible and capable of changing cryptographic algorithms on the fly.”

The full article is here: https://www.nature.com/articles/d41586-018-07449-z#ref-CR12


Basically, scientists write about all the same as in the article referred to by the author of the topic: https://dapcash.org/quantum-apocalypse  Only a little less emotions:-)

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[LickKing]

This is definitely a false problem. Quantum computers will not appear in development for 20 years, and its operating costs are very high. It may take several years to crack a password. So you don't have to worry.

[pq]

This is definitely a false problem. Quantum computers will not appear in development for 20 years, and its operating costs are very high. It may take several years to crack a password. So you don't have to worry.

In 2015, the US National Security Agency (NSA) announced the plans for the
transition to post-quantum cryptographic algorithms: “Unfortunately, the growth of
elliptic curve use has bumped up against the fact of continued progress in the research
on quantum computing, which has made it clear that elliptic curve cryptography is not
the long-term solution many once hoped it would be.”;

In 2016, IBM provided the first cloud-based quantum computer, IBM Q, with five
qubits, accessible to anyone who wants to practice quantum programming;

In 2016, Intel engineers announced the work on a quantum processor with millions
of qubits;

In 2016, Google Chrome developers implemented the post-quantum key exchange
algorithm New Hope and in 2017 Google predicted the commercialization of
quantum technology within the next five years;

In April 2018, the developers implemented the post-quantum algorithm of the XMSS
digital signature for the OpenSSH 7.7 update;

In June 2018, Microsoft added post-quantum key exchange algorithms and
signatures to their OpenVPN fork.

They are worried...

This is a quote from the Bitcoin Post-Quantum whitepaper (https://bitcoinpq.org/download/bitcoinpq-whitepaper-english.pdf)