Blockchain Essentials: Core Concepts and Implementations

© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2024

R. S. Mangrulkar, P. Vijay ChavanBlockchain Essentialshttps://doi.org/10.1007/978-1-4842-9975-3_2

2. Essentials of Blockchain Programming

Ramchandra Sharad Mangrulkar¹   and Pallavi Vijay Chavan¹  

(1)

Mumbai, Maharashtra, India

 

Keywords

Cryptography primitivesHashingSecure SHAMerkle treePublic key cryptographyDigital signatureBlock mining

2.1 Cryptography Primitives

Blockchain technology is built on top of many cryptographic primitives. These are

• hash functions

• SHA-256

• puzzle friendliness

2.1.1 Hash Function

The hash functions play an important role in connecting various blocks in blockchain. Hash functions usually take variable size input and produced fixed-length ...