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What is Hashing

Chapter 3
Blockchain Technology and Computational Excellence for Society 5.0
The process of converting plaintext into a unique string of letters and numbers. It is not possible to reconstitute your original data from the output it produces.
Published in Chapter:
Blockchain Primer: Introduction to Blockchain Foundations and Implementation
Mohammad Amin Kuhail (Zayed University, UAE), Sujith S. Mathew (Zayed University, UAE), Rawad Hammad (East London University, UK), and Mohamed Bahja (University of Birmingham, UK)
Copyright: © 2022 |Pages: 20
DOI: 10.4018/978-1-7998-8382-1.ch003
Abstract
Blockchain technology has the potential to revolutionize several industries including finance, supply chain and logistics, healthcare, and more. This primer introduces readers to basic development skills to blockchain foundations including blockchain cryptography, the consensus algorithm, and smart contracts. Further, this primer explains stepwise how to implement and deploy basic data stores using blockchain with Python. The primer serves as a succinct introductory guide to blockchain foundations by relying on a case study illustrated with visuals together with instructions on implementation. This primer is intended for educators, students, and technology enthusiasts with foundational computer science and Python development skills.
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Chapter 3
Database Systems for Big Data Storage and Retrieval
Generating a fixed length output as a unique and shortened representation for a given piece of data. The fixed length output is called the hash code and the algorithm that generates the output is called a hash function .
Published in Chapter: Database Systems for Big Data Storage and Retrieval; From: Handbook of Research on Big Data Storage and Visualization Techniques
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Chapter 60
Biometric Identification Techniques
The transformation of a record into a usually shorter fixed-length value or key that represents the original record. Hashing is used to index and retrieve items in a database because it is faster to find the item using the shorter hashed key than to find it using the original value.
Published in Chapter: Biometric Identification Techniques; From: Encyclopedia of Information Science and Technology, Second Edition
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Chapter 7
Privacy Preservation in Smart Grid Environment
The process of transforming a set of characters into a smaller fixed-length key or parameter that uniquely represents the original set of characters.
Published in Chapter: Privacy Preservation in Smart Grid Environment; From: Secure Cyber-Physical Systems for Smart Cities
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Chapter 5
Digital Terrorism Attack: Types, Effects, and Prevention
Method of converting a string of characters into a shorter fixed length value for easy storage and retrieval.
Published in Chapter: Digital Terrorism Attack: Types, Effects, and Prevention; From: Critical Concepts, Standards, and Techniques in Cyber Forensics
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Chapter 5
Blockchain-Based Secure Transactions
Hashing is the process of transforming any given key or a string of characters into another value.
Published in Chapter: Blockchain-Based Secure Transactions; From: Handbook of Research on Blockchain Technology and the Digitalization of the Supply Chain
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Chapter 18
Speedy Management of Data Using MapReduce Approach
This is a methodology where the input string is converted to another form.
Published in Chapter: Speedy Management of Data Using MapReduce Approach; From: Encyclopedia of Data Science and Machine Learning
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Chapter 3
Digital Evidence Collection and Preservation in Computer Network Forensics
A procedure that ensures data integrity transforms a string into a unique number. Popular algorithms for this purpose include MD5, SHA-1, and SHA-256.
Published in Chapter: Digital Evidence Collection and Preservation in Computer Network Forensics; From: Handbook of Research on Innovative Approaches to Information Technology in Library and Information Science
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Chapter 10
Blockchain Technology for the Internet of Things Applications in Apparel Supply Chain Management
Software causes the block header to be “hashed”. Hashing is the process by which a grouping of digital data is converted into a single number, called a hash. The number is unique (effectively a “digital fingerprint” of the source data) and the source data cannot be reverse engineered and recovered from it.
Published in Chapter: Blockchain Technology for the Internet of Things Applications in Apparel Supply Chain Management; From: Blockchain Applications in IoT Security
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Chapter 10
Applications of Secured Blockchain Technology in the Manufacturing Industry
The process by which a grouping of digital data is converted into a single number, called a hash. The number is unique (effectively a “digital fingerprint” of the source data), and the source data cannot be reverse-engineered and recovered from it. In the context of blockchain, what is hashed is the block header.
Published in Chapter: Applications of Secured Blockchain Technology in the Manufacturing Industry; From: Blockchain and AI Technology in the Industrial Internet of Things
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Chapter 4
Cloud Cryptography
This is a technique to convert the variable length data into a fixed length identifier called hash.
Published in Chapter: Cloud Cryptography; From: Emerging Trends in Cloud Computing Analytics, Scalability, and Service Models
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Chapter 3
A Blockchain-Based Approach to Revolutionizing Healthcare
The process of using a cryptographic hash algorithm to encode information, resulting in a comparatively distinct result from data sources of varying sizes. In order to verify the data's integrity, hashing the input data can be used to produce identical outputs. The output will be quite distinct if even the slightest modification is applied to the source data.
Published in Chapter: A Blockchain-Based Approach to Revolutionizing Healthcare; From: Revolutionizing Digital Healthcare Through Blockchain Technology Applications
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