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Survey on Revocation in Ciphertext-Policy Attribute-Based Encryption [PDF]
Sensors, 2019 Recently, using advanced cryptographic techniques to process, store, and share data securely in an untrusted cloud environment has drawn widespread attention from academic researchers.
Ruqayah R. Al-Dahhan +3 more
doaj +7 more sources
Removing escrow from ciphertext policy attribute-based encryption
Computers and Mathematics With Applications, 2013 Abstract Attribute-based encryption (ABE) is a promising cryptographic primitive for fine-grained access control of distributed data. In ciphertext policy attribute-based encryption (CP-ABE), each user is associated with a set of attributes and data are encrypted with access policies on attributes.
Dongyoung Koo +2 more
exaly +4 more sources
Ciphertext-Policy Attribute-Based Encryption [PDF]
2007 IEEE Symposium on Security and Privacy (SP '07), 2007 In several distributed systems a user should only be able to access data if a user posses a certain set of credentials or attributes. Currently, the only method for enforcing such policies is to employ a trusted server to store the data and mediate access control.
John Bethencourt +2 more
core +3 more sources
Traceable and undeniable ciphertext-policy attribute-based encryption for cloud storage service
International Journal of Distributed Sensor Networks, 2019 Ciphertext-policy attribute-based encryption is a promising mechanism with fine-grained access control for cloud storage system. However, there is a long-lasting problem of key abuse that a user may share its decryption key and a semi-honest authority ...
Gang Yu +4 more
doaj +2 more sources
Ciphertext-policy hierarchical attribute-based encryption with short ciphertexts
Information Sciences, 2014 10.1016/j.ins.2014.01.035 Attribute-based encryption (ABE) systems allow encrypting to uncertain receivers by means of an access policy specifying the attributes that the intended receivers should possess. ABE promises to deliver fine-grained access control of encrypted data.
Hua Deng +2 more
exaly +3 more sources
Lazy-mode Ciphertext-update Based Approach for CP-ABE Attribute Change [PDF]
Jisuanji kexue, 2022 Ciphertext-policy attribute-based encryption(CP-ABE) can be used to realize secure data sharing in cloud computing environments.However,user attribute change(attribute revocation and addition) in CP-ABE is a tricky problem.Generally,attribute change is ...
LEI Xue-jiao, WANG Yin-long, Nurmamat HELIL
doaj +1 more source
Fine Grained and Efficient Searchable Encryption Scheme Based on Attribute Policy Hiding inCloud Environment [PDF]
Jisuanji kexue, 2023 Attribute based encryption provides flexible and fine-grained access control for outsourced data stored in the cloud.The traditional attribute based ciphertext policy encryption scheme(CP-ABE),whose access policy often appears in the form of plaintext,is
ZHOU Yihua, LI Meiqi, HU Xinyu, YANG Yuguang
doaj +1 more source
Multi-authority based CP-ABE proxy re-encryption scheme for cloud computing
网络与信息安全学报, 2022 Proxy re-encryption allows a proxy to convert a ciphertext related to a certain access policy into another one with a different access policy without uncovering the underlying plaintext, which makes the proxy re-encryption technology to be an important ...
Shang LIU, Yinzhang GUO
doaj +3 more sources
Proposal for Quantum Ciphertext-Policy Attribute-Based Encryption
CoRR, 2022 12 ...
Asmita Samanta +2 more
openaire +2 more sources
Data Querying with Ciphertext Policy Attribute Based Encryption
CoRR, 2022 Data encryption limits the power and efficiency of queries. Direct processing of encrypted data should ideally be possible to avoid the need for data decryption, processing, and re-encryption. It is vital to keep the data searchable and sortable. That is, some information is intentionally leaked.
Maryam Almarwani +2 more
openaire +2 more sources