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Attribute-based encryption is a generalisation of public-key encryption which enables fine grained access control of encrypted data using authorisation policies. The secret key of a user and the ciphertext are dependent upon attributes (e.g. their email address, the country in which they live, or the kind of subscription they have).
Mar 6, 2019 · A ttribute-based encryption is a promising new ¹ technique in cryptography that has so far only been covered in graduate cryptography courses and academic papers. It has barely filtered into new...
An attribute-based encryption grants access to a piece of data to a user only if the attributes possessed by the user are authorized subset of the attributes associated with the data. This set of attributes associated with the data item forms the access control policy of the data item.
Attribute-based Encryption (ABE) Foundations and Applications within Blockchain and Cloud Environments. Qi Xia. University of Electronic Science and Technology of China, China. Jianbin Gao. University of Electronic Science and Technology of China, China. Isaac Amankona Obiri. University of Electronic Science and Technology of China, China.
Nov 30, 2018 · Attribute-based encryption (ABE) can be viewed as a technique for enforcing cryptographic access control on data where the access policy is specified over attributes such as: {Name = “John” AND (Age = “30” OR (Location = “Virginia” AND Role = “Manager”)) AND Department = “Finance”}.
The research on Attribute-Based Encryption (ABE) originated from Identity-Based Encryption (IBE) in [66], in which an identity can be considered as an attribute in ABE. In IBE, an identity or an ID is a descriptive term used as the user's public key.
This chapter describes attribute‐based encryption (ABE) and its advantages over the current cryptographic scheme. ABE provides less key overhead than other public key encryption algorithms, such as RSA, ElGamal, and identity‐based encryption, when multiple users with varying access privileges exchange encrypted data.
Attribute-based encryption (ABE) is an advanced form of public key encryption (PKE), which yields fine-grained access control over encrypted data. More concretely, ABE allows us to embed an attribute x into a ciphertext when we encrypt a message.
Jan 5, 2021 · An attribute-based encryption scheme is a public key encryption scheme in which users’ private keys and ciphertexts are dependent upon descriptive attributes. Background. The concept of attribute-based encryption (ABE) was first introduced by Sahai and Waters in 2005 (Sahai and Waters, 2005 ).
Attribute-based encryption ABE 18 is an advanced form of public key en-cryption PKE, which yields ne-grained access control over encrypted data. More concretely, ABE allows us to embed an attribute x into a ciphertext when we encrypt a message. An authority that has a master secret key can issue a secret key that is associated with a predicate y.
