Ethereum can quantum-proof accounts for just 7 cents, says Ethereum's Kohaku lead
"Quantum computing threats loom over Ethereum, prompting a race for solutions."
Ethereum's Kohaku lead Nicolas Consigny proposes a solution. The Ethereum Foundation's Kohaku project lead unveiled a paper on Saturday, outlining a cost-efficient method to protect Ethereum accounts against future quantum-computing threats. This approach, dubbed SPHINCS-, adapts a post-quantum signature standard developed by the US National Institute of Standards and Technology to work more efficiently on Ethereum.
The SPHINCS- proposal aims to reduce the cost of post-quantum signature verification on Ethereum while the network works toward a longer-term solution. By adapting the SPHINCS+ standard, Consigny's team seeks to address the long-term risk of a quantum threat to Ethereum's Elliptic Curve Digital Signature Algorithm with a cost-efficient solution that may be deployed before a dedicated hard fork is developed. The approach does not require a protocol change or precompile, making it a viable bridge toward a future post-quantum signature system.
According to Consigny, Ethereum could begin adding post-quantum protections to accounts for as little as $0.07, without waiting for a hard fork. This cost-efficient solution is a significant development, as it would enable Ethereum users to protect their accounts against future quantum-computing threats without incurring substantial costs. The proposal has implications for the broader cryptocurrency market, as it demonstrates a proactive approach to addressing the risks associated with quantum computing.
The threat of quantum computing to cryptocurrency networks is a pressing concern. In April, post-quantum startup Project Eleven awarded a prize to researcher Giancarlo Lelli for using a quantum computer to break a 15-bit elliptic-curve key. Although Bitcoin's keys are 256 bits long, significantly larger than the 15-bit key Lelli managed to crack, the demonstration highlights the potential risks associated with quantum computing. According to Glassnode, about 1.92 million Bitcoin, representing nearly 10% of the total supply, are considered “structurally unsafe” in a future quantum attack scenario.
The SPHINCS- proposal is part of a broader effort to develop post-quantum signature systems that can withstand the threats posed by quantum computing. Consigny described SPHINCS- as a bridge toward a future post-quantum signature system dubbed “leanSPHINCS,” which aims to further reduce verification costs through aggregation. The development of leanSPHINCS and other post-quantum signature systems is crucial for the long-term security and viability of cryptocurrency networks.
The implications of the SPHINCS- proposal extend beyond Ethereum, as it demonstrates a proactive approach to addressing the risks associated with quantum computing. Other cryptocurrency networks, including Bitcoin, are also vulnerable to quantum threats, and the development of cost-efficient solutions like SPHINCS- could have far-reaching implications for the broader market. As the use of quantum computing becomes more widespread, the need for post-quantum signature systems that can withstand these threats will become increasingly pressing.
In the context of the broader cryptocurrency market, the SPHINCS- proposal is a significant development. It demonstrates a proactive approach to addressing the risks associated with quantum computing and highlights the need for continued innovation and development in the field of post-quantum signature systems. As the market continues to evolve, the ability to adapt to emerging threats and develop cost-efficient solutions will be crucial for the long-term security and viability of cryptocurrency networks.
The development of post-quantum signature systems like SPHINCS- and leanSPHINCS is a complex process that requires collaboration and innovation from researchers, developers, and industry leaders. The Ethereum Foundation's Kohaku project is at the forefront of this effort, and the SPHINCS- proposal is a significant step forward in the development of post-quantum signature systems. As the market continues to evolve, it is likely that we will see further innovations and developments in this field, driving the growth and adoption of cryptocurrency networks.
In conclusion, the SPHINCS- proposal is a significant development in the field of post-quantum signature systems, demonstrating a proactive approach to addressing the risks associated with quantum computing. The ability to add post-quantum protections to Ethereum accounts for as little as $0.07 is a major breakthrough, and the implications of this development extend far beyond the Ethereum network. As the market continues to evolve, the need for cost-efficient solutions like SPHINCS- will become increasingly pressing, driving innovation and development in the field of post-quantum signature systems.
