New research published today from Google shows quantum computers can break the cryptographic protections that secure blockchain systems like bitcoin and ethereum with significantly less computational power than once thought.
This research has intensified worries about the long-term viability of crypto security as quantum computing continues to moving forward at a rapid pace.
According to the research, by utilizing fewer than 500K physical qubits, a quantum computer could break the elliptic curve cryptography that bitcoin and ethereum and other blockchains use for security.
Current estimates show that this represents a tremendous gain in efficiency over previous estimates because researchers were able to complete the task in one-20th of the previously calculated time.
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In particular, the research focused on ECDLP-256, which forms the basis for the many cryptocurrencies that exist today.
As demonstrated by the research, if a sufficiently powerful quantum computer existed, it would be able to derive a private key from its corresponding public key in less than nine minutes of operation.
Risk of real-time attacks on Bitcoin
A Quantum computer would allow a hacker to take our money from us after the transaction had already taken place. There are many different types of Quantum Computer. Each will be capable of taking different types of digital currency.
There are some researchers who are trying to figure out if there is a way to use Quantum technology to defeat the current Electronic Payment Systems through the use of Quantum Computers? Researchers believe that the answer is yes; however, it would be necessary to develop a common set of rules in order to make it possible. Many if possible; all must agree on the same or at least one of the many types of research on Quantum Computing.
The following are ways possible Quantum law and rules can be developed. Additionally, this could lead to the development of new laws and regulations concerning future Electronic Payment Systems created from the development of Quantum computations. Research is still ongoing regarding these potential changes.
Calls for post-quantum security upgrades
Google has declared through a statement that this research study aims to show the crypto industry to the world while preparing them for possible future quantum computing challenges. Google recommended that blockchain networks should begin their transition to post-quantum cryptography because actual quantum threat events will not occur until later. Google has established a schedule which will lead to their systems becoming operational with post-quantum technology by the end of this decade.
These findings have caused renewed discussions among developers and researchers about how rapidly the industry needs to move forward. Some experts believe that it will be several years before we begin to see any quantum threats. Other experts believe that we need to start preparing now because of the complexity of upgrading blockchain systems.
The Ethereum Foundation has developed a roadmap which shows their plan to upgrade Ethereum into a post-quantum state. They have identified several focus areas which include validator signatures, account structures, and data storage.
The Bitcoin community continues to discuss ways which will enable an upgrade to occur without causing disruptions to the Bitcoin network.
The current discussions show more important matters which concern how the present cryptography standards will sustain their security against quantum computing threats.
The major technology companies have made significant progress in quantum research during the last few years which has increased expectations for the upcoming event called Q-Day when quantum computers will achieve their capability to break existing encryption methods.
The first estimates of that milestone needed several decades to reach but recent research indicates that it will happen sooner than expected which has caused governments and industries worldwide to start building systems that can resist quantum attacks. The crypto sector depends on public-key cryptography which makes its situation extremely dangerous.
The previous security upgrade discussions which included network forks and protocol changes demonstrated that organizations need multiple years to execute big changes. Google research shows that organizations need to handle quantum risks immediately because they exist as a new security threat which has not yet become fully developed.
