How is blockchain insecure due to quantum computers?
Best insight from top research papers
Blockchain is insecure due to the advancement of quantum computers. Quantum algorithms like Shor's algorithm and Grover's algorithm pose a threat to the security and privacy of blockchain systems. The current cryptographic systems of blockchain, such as ECDSA, rely on the computational hardness of certain mathematical problems that cannot be solved by classical computers. However, these problems can be solved by quantum algorithms, making the blockchain vulnerable to attacks from quantum computers . To address this issue, researchers are exploring post-quantum cryptographic schemes that are considered quantum resistant and secure from future quantum attacks . Additionally, the security of blockchain relies on the computational complexity of certain mathematical functions, and the evolution of quantum computers may breach its security in the near future. To enhance blockchain network security, researchers are investigating the combination of quantum key distribution (QKD) with blockchain, creating a new technology known as quantum-secured blockchain .
Answers from top 5 papers
More filters
| Papers (5) | Insight |
|---|---|
| The paper does not explicitly mention how blockchain is insecure due to quantum computers. | |
Open access•Posted Content | The paper states that the security of current blockchain cryptosystems can be compromised by quantum computing, specifically through algorithms like Shor's large integer factorization algorithm and Grover's unstructured database search algorithm. |
| Blockchain is insecure due to the evolution of quantum computers, which can breach the security of blockchain by exploiting the computational complexity of certain mathematical functions. | |
24 May 2022 | The paper discusses how the advancement of quantum computers poses a threat to the security of blockchain systems, specifically due to the potential development of quantum algorithms that can compromise the hashing and digital signature mechanisms used in blockchain cryptography. |
15 Jul 2022 1 Citations | The paper does not provide information on how blockchain is insecure due to quantum computers. |
Related Questions
Can cryptography algorithms be made more secure through the use of quantum computing technology?5 answersCryptography algorithms can be made more secure through the use of quantum computing technology. Quantum computers have the potential to break currently secure cryptographic systems, such as symmetric and asymmetric cryptosystems, due to their exponential processing power and the existence of quantum-based algorithms like Grover's and Shor's. These algorithms can solve underlying mathematical problems that form the basis of the security of affected cryptosystems. To address this threat, researchers have explored other mathematical structures, such as lattices, hashes, codes, isogenies, high entropy-based symmetric key resistance, and multivariate quadratic problems, which could provide increased security against quantum-based attacks. Additionally, efforts are being made to standardize post-quantum encryption algorithms that are resistant to future quantum computers. Evaluations of post-quantum cryptography algorithms have been conducted to assess their performance and suitability for real-world applications.
How does network security flaws of blockchain affect the people?4 answersBlockchain network security flaws can have significant implications for people. The misconception that blockchains offer decentralized and trustless security guarantees hampers participants from understanding the differences between public and private blockchains. Private blockchains, due to their centralized nature, have limitations in securing the interests of users in macro-social contexts. On the other hand, public blockchains reveal trust and security shortcomings at the micro and meso-organizational levels. Additionally, the vulnerabilities within the blockchain network, such as complex behaviors and network topology, can be exploited by malicious actors, further compromising the security of participants. Therefore, the network security flaws of blockchain can impact the security and trust assumptions of participants, potentially exposing them to various threats and compromising their interests.
How can i introduce quantum key distribution on blockchain?5 answersA quantum key distribution (QKD) method based on a blockchain can be introduced by following these steps. First, two key pools separated from two places are created, with the same configurations, and connected through public quantum channels. A QKD protocol is then used to generate key streams, which are stored in corresponding positions of the key pools. The key pools are managed by key pool managers, who update storage addresses and interact with users. The key pool managers are connected to a blockchain, which records transactions between users and the managers. Additionally, the blockchain processing circuitry generates a blockchain for multiple groups of data using encryption based on quantum key distribution using N-state qudits. The hash function in the blockchain processing circuitry uses the first digital signature and the second group of data to generate a second digital signature for the second block. This approach improves the efficiency of key distribution while ensuring safety.
What are the potential security implications of quantum computing?5 answersQuantum computing has the potential to transform various application areas but also poses security risks. Quantum computers can suffer from crosstalk and fault injection attacks, compromising the integrity of programs. Third-party calibration services can misreport error rates or mis-calibrate qubits, leading to denial-of-service attacks. The availability of untrusted but cheaper quantum hardware can enable IP theft and tampering of quantum programs and outcomes. Untrusted compilation services can inject Trojans and tamper with quantum circuits. Quantum computers can break current cryptographic systems, posing a threat to privacy and security. Producing enough fault-tolerant qubits is a major challenge for fully utilizing the computational power of quantum computers. Quantum computing holds promise for revolutionizing various fields, including cybersecurity, but advancements and challenges need to be addressed.
What are the biggest risks to blockchain technology?5 answersBlockchain technology faces several risks. These risks include wallet security risks, code vulnerability, risks on the validity of the consensus mechanism, Hash algorithm risk, 51% attack risk, and exchange risk. Additionally, the security and privacy-related challenges derived from the progressive maturity, complexity, lack of standardization, and diversity of protocols pose challenges to blockchain technology. Threats to the security of the blockchain system include eclipse attacks that can hamper the distribution of the blockchain. Cybersecurity threats and vulnerabilities are also a concern, requiring risk management and measures to protect against incidents. Technical vulnerabilities and vulnerability attacks, such as syntax problems, environment setup mistakes, and graphical interface issues, are significant risks to the blockchain system.
How does quantum computing scale the Blockchain architecture?5 answersThe advancement of quantum computers undermines the security of classical blockchain, requiring a quantum-resistant upgrade or a quantum blockchain architecture. A model of quantum blockchain based on the generalized Gram-Schmidt procedure utilizing dimensional lifting is proposed, where transaction information is recorded in multi-qubit states encoded using the extended Gram-Schmidt process. The chain is generated based on the reliance of orthogonalized state on the preceding sequence of states. Mixed ion species chains in linear RF traps can help solve scalability issues in ion trap quantum computation. Communication of quantum data is critical in scalable silicon-based quantum architectures, and quantum teleportation is proposed as a means to communicate data over longer distances on a chip. Realistic quantum error-correction circuits benefit from using teleportation for long-distance communication.