Definition ∞ Quantum polynomial time refers to the class of computational problems that a quantum computer can solve in a number of steps that grows polynomially with the size of the input. This is a significant distinction because certain problems considered intractable for classical computers, such as factoring large numbers, become solvable in quantum polynomial time. This efficiency difference underpins the quantum computation threat. It defines the capabilities of future quantum machines.
Context ∞ The concept of quantum polynomial time is central to understanding the vulnerabilities of current cryptographic schemes used in digital assets to future quantum attacks. Cryptographic algorithms whose security relies on problems solvable in quantum polynomial time, like RSA and elliptic curve cryptography, are under scrutiny. The ongoing effort involves developing and implementing quantum-safe algorithms to protect blockchain networks and digital transactions from this future computational capacity.
Blockchain Knowledge
Cryptocurrency Foundation
Cryptospace Newsfeed
