Blockchain security in the quantum era
Blockchain public-key infrastructure is built on top of two mathematical problems: integer factorization and discrete logarithm problems, both of which are vulnerable to quantum attacks. This essay describes some of the options and challenges in light of the quantum threat.
Keelung - A toolkit for fast, private and secure applications
We are excited to announce Keelung, a zero-knowledge cryptography development toolkit for fast, private and secure applications. Keelung makes it simple to build zero-knowledge proofs (ZKPs) for your application regardless of the business logic or use case. Zero-knowledge cryptography has a bright future, and we want to make it easy for teams to build and ship.
Long-Term Security Solutions for CBDCs
Stablecoins are cryptocurrencies that are collateralized by fiat money, commodities or other cryptocurrencies and have reached a record high market capitalization of over $180B in 2022. Even during the bear market, stablecoin market capitalization has remained around $150B and has retained over 15% of the market share of the total digital currency market as of July 2022. The rapid growth of digital currency assets such as stablecoins has motivated central banks to research and validate Central Bank Digital Currency (CBDC) solutions.
NIST Announces the 1st International PQC Standards
NIST has officially announced the standardized algorithms from Round 3 of the NIST PQC competition. This is a landmark milestone as government agencies and businesses have been waiting nearly 6 years for a clear direction as to which algorithms are trustworthy. Post-quantum cryptographic algorithms are the front-line defense against adversarial quantum attacks, a problem that will become more common as the pace of development in quantum computers surges.
QByte gives you the latest information on research and development in the field of quantum computing. We provide a dashboard to track important research metrics and how they relate to breaking the cryptography underlying Bitcoin and Ethereum.
Over the Rainbow: NIST PQC Update
In recent years, substantial progress has been made in the field of quantum computing - a computing paradigm which leverages quantum mechanics to solve mathematical problems that are difficult and often intractable on conventional machines. Quantum computers are capable of solving certain problems classical computers are incapable of solving in any feasible amount of time by encoding information into quantum bits (qubits). Each qubit doubles the amount of memory space available to execute algorithms, leading to vast improvements in computational time and performance. In November 2021 IBM unveiled a 127-qubit quantum processor, improving over its 65-qubit processor from the previous year
Blockchain finance in the quantum era
Two emerging technologies currently gaining enormous attention are blockchain-based decentralised finance, and the rapidly developing field of quantum computing, both likely to be highly transformative ones that define the future technological landscape and structure of the global economy. While seemingly disparate there is a complex interplay between these technologies via the dependence of blockchain implementations on cryptographic techniques and the future potential for quantum computers to compromise them.