{"id":1935,"date":"2023-11-25T18:40:22","date_gmt":"2023-11-25T18:40:22","guid":{"rendered":"https:\/\/digitalworldnet.com\/index.php\/2023\/11\/25\/exploring-post-quantum-distributed-ledger-technologies-a-comprehensive-review\/"},"modified":"2023-11-25T18:40:22","modified_gmt":"2023-11-25T18:40:22","slug":"exploring-post-quantum-distributed-ledger-technologies-a-comprehensive-review","status":"publish","type":"post","link":"https:\/\/digitalworldnet.com\/index.php\/2023\/11\/25\/exploring-post-quantum-distributed-ledger-technologies-a-comprehensive-review\/","title":{"rendered":"Exploring Post-Quantum Distributed Ledger Technologies: A Comprehensive Review"},"content":{"rendered":"<h2>Understanding the Future of Blockchain in the Quantum Era<\/h2>\n<h3><\/h3>\n<p>In the ever-evolving landscape of technology, the rise of quantum computing poses a significant threat to traditional cryptographic systems. As quantum computers become more powerful, they have the potential to crack current encryption algorithms, rendering them obsolete. This has led researchers to explore post-quantum cryptography, which aims to develop cryptographic schemes that can withstand attacks from quantum computers. One area where this development is crucial is in distributed ledger technologies, commonly known as blockchain. In this article, we will delve into the world of post-quantum distributed ledger technologies (PQDLTs) and explore their importance, implementation, and potential applications.<\/p>\n<p class=\"youtube-url\" style=\"text-align:center;\"><iframe loading=\"lazy\" title=\"Distributed Futures Webinar: Quantum Computing\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/IO5-RttJXiA?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen><\/iframe><\/p>\n<h3>Planning Review: Identifying the Needs and Research Questions<\/h3>\n<h3>To conduct a systematic literature review on PQDLTs, researchers must first identify the gaps in existing research surveys. This involves analyzing previous surveys related to PQDLTs and understanding their strengths and weaknesses. The research questions addressed in this paper are:<\/h3>\n<h3>1. What are post-quantum distributed ledger technologies, and why are they important?<\/h3>\n<h3>2. How are they implemented, and what parameters are used in their implementations? How do they differ from existing works?<\/h3>\n<h3>3. What makes them secure, relevant, and useful in the upcoming quantum computing era?<\/h3>\n<h3>4. What are the applications and benefits of post-quantum distributed ledger technologies?<\/h3>\n<h3>Quantum Cryptography<\/h3>\n<p>Quantum cryptography utilizes the principles of quantum mechanics to encrypt data securely and transmit it in a way that is impervious to hacking attempts. Several quantum cryptography techniques have been developed for use in PQDLTs.<\/p>\n<p>&#8211; Kiktenko et al. proposed a two-layer network protocol for blockchain using Quantum Key Distribution (QKD) in the quantum layer and Toeplitz hashing in the classical layer. While this approach provides security and transparency, the transfer rate suffers with an increase in channel length.<\/p>\n<p>&#8211; Nilesh and Panigrahi developed a blockchain model using the generalized Gram-Schmidt method and dimensional lifting. This model addresses forking processes and double spending attacks, but it requires specific quantum infrastructure for network entry.<\/p>\n<p>&#8211; Sandeep Mishra et al. proposed an electronic voting machine based on quantum-assisted blockchain. This permissioned blockchain system stores votes securely and is resistant to future quantum computers. However, it lacks full decentralization and scalability.<\/p>\n<p>&#8211; Sun et al. created a blockchain system named logicontract, which uses a vote-based consensus algorithm and Toeplitz group signature. While this consensus protocol scales well with the number of peers, estimating resource costs and execution time of smart contracts is challenging.<\/p>\n<p>&#8211; Iovane utilized Computational Quantum Key Distribution (CQKD) to implement quantum blockchain. This architecture utilizes computational photons and an improved version of the Algorand approach. However, stress tests are needed to analyze the robustness of the infrastructure.<\/p>\n<h3>Post-Quantum Cryptography<\/h3>\n<p>Post-quantum cryptography aims to develop cryptographic schemes that are secure against attacks from quantum computers. Several post-quantum cryptography approaches have been explored for use in PQDLTs.<\/p>\n<p>&#8211; Zhang et al. used a lattice cipher, qTESLA, for their blockchain and stored public keys in an InterPlanetary File System (IPFS) network. This approach addresses the storage capacity issue but lacks parallel transaction capability.<\/p>\n<p>&#8211; Li et al. proposed a protocol based on lattice cipher for securing existing channels of classical blockchain networks. This protocol uses Randbasis and Extbasis algorithms for key generation and is secure against both quantum and classical attacks.<\/p>\n<p>&#8211; Holcomb et al. developed PQFabric, a Hyperledger system that provides security against quantum and classical attacks. This system uses qTESLA as a base and offers total crypto-agility. However, it faces challenges with oversized certificates and reduced throughput.<\/p>\n<p>&#8211; Saha and his co-authors created a blockchain system that uses a lattice-based signature scheme embedded in a lattice with a polynomial for identity-based encryption. This system demonstrates the benefits of lattice-based cryptography but scalability and optimization need to be addressed.<\/p>\n<h3>Conclusion:<\/h3>\n<p>As quantum computing continues to advance, the need for post-quantum distributed ledger technologies becomes increasingly evident. Quantum cryptography and post-quantum cryptography offer different approaches to securing blockchain networks in the quantum era. While quantum cryptography utilizes the principles of quantum mechanics, post-quantum cryptography focuses on developing cryptographic schemes that are resistant to attacks from quantum computers. Both approaches have their advantages and limitations, and further research is needed to optimize their scalability, efficiency, and performance. The development of post-quantum distributed ledger technologies is crucial to ensure the security and longevity of blockchain systems in the face of quantum computing advancements.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Understanding the Future of Blockchain in the Quantum Era In the ever-evolving landscape of technology, the rise of quantum computing poses a significant threat to traditional cryptographic systems. As quantum computers become more powerful, they have the potential to crack current encryption algorithms, rendering them obsolete. This has led researchers to explore post-quantum cryptography, which [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":1936,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[224],"tags":[],"_links":{"self":[{"href":"https:\/\/digitalworldnet.com\/index.php\/wp-json\/wp\/v2\/posts\/1935"}],"collection":[{"href":"https:\/\/digitalworldnet.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/digitalworldnet.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/digitalworldnet.com\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/digitalworldnet.com\/index.php\/wp-json\/wp\/v2\/comments?post=1935"}],"version-history":[{"count":0,"href":"https:\/\/digitalworldnet.com\/index.php\/wp-json\/wp\/v2\/posts\/1935\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/digitalworldnet.com\/index.php\/wp-json\/wp\/v2\/media\/1936"}],"wp:attachment":[{"href":"https:\/\/digitalworldnet.com\/index.php\/wp-json\/wp\/v2\/media?parent=1935"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/digitalworldnet.com\/index.php\/wp-json\/wp\/v2\/categories?post=1935"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/digitalworldnet.com\/index.php\/wp-json\/wp\/v2\/tags?post=1935"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}