Название: Attribute-based Encryption (ABE): Foundations and Applications within Blockchain and Cloud Environments
Автор: Qi Xia, Jianbin Gao, Isaac Amankona Obiri
Издательство: Wiley-IEEE Press
Год: 2024
Страниц: 275
Язык: английский
Формат: pdf (true), epub
Размер: 17.2 MB

Enables readers to understand applications of attribute-based encryption schemes in cloud computing with the support of blockchain technology.

With a focus on blockchain technology, Attribute-based Encryption (ABE) provides insight into the application of attribute-based encryption (ABE) schemes, discussing types of blockchains, fundamentals of blockchain, and how blockchains are constructed.

Comprised of 16 chapters, the text provides an overview of the components that go into creating a dual ABE system of encryption proofs within the following: composite bilinear groups, dual pairing vector space framework, matrix pairing framework, framework for matrix pairing, and the application of cryptographic scheme on blockchain. The team of authors discuss the basic construction components of ABE and share the security models, including the selective and semi- adaptive security models, applying these to either prime order or composite order groups.

Since the emphasis is on multi-user data sharing, and the data encryptor does not know the identities of the data users in advance, symmetric encryption, asymmetric encryption, and identity-based encryption are impractical. The attribute-based encryption (ABE) schemes are excellent for multi-user data-sharing scenarios in which the identity of the data users is unknown in advance. ABE employs an access structure based on attributes in either the ciphertext or the secret key, and it is able to provide fine-grained access control with the guarantee that a user can only decrypt a message if they satisfy the constraints imposed by the access structure.

While blockchain technology has just recently become associated with new means of managing financial assets, its possibilities are practically limitless. Blockchain is a particularly promising and revolutionary technology because it reduces risk, eliminates fraud, and provides scalable transparency for a wide range of applications. Therefore, ABE schemes based on blockchain can achieve immense number of advantages including transparency, accountability, and data immutability.

The book also discusses the tools used for converting a composite order ABE scheme to prime order and an adaptive secure ABE scheme based on prime order.

In Attribute-based Encryption (ABE), readers can expect to find information on:

Mathematical background of ABE, covering group and cyclic group, elliptic curves, curve selection, supersingular curves, ordinary curves, and weil and tate pairing
Basic construction components of ABE, covering access structure, monotone Boolean formula, linear secret-sharing scheme, and ordered binary decision diagram
Tools for converting composite order ABE schemes to prime order, covering security assumptions and conversion based on vectors for preliminaries, scheme construction, and security proof technique
Foundations of blockchain technology, covering blocks, miners, hash functions, and public key cryptography

Attribute-based Encryption (ABE) is an essential resource for professionals working in the field of design and cybersecurity who wish to understand how to use blockchain and the ABE scheme to provide fine-grained access control in outsourced data on third-party cloud servers.

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