Results 61 to 70 of about 5,325 (187)
Ubic: Bridging the gap between digital cryptography and the physical world
Advances in computing technology increasingly blur the boundary between the digital domain and the physical world. Although the research community has developed a large number of cryptographic primitives and has demonstrated their usability in all ...
D.M. Freeman +6 more
core +1 more source
(Not Surprising) Attacks on Recent Pairing‐Free Attribute‐Based Encryption Schemes
The fact that designing secure and efficient identity or attribute‐based encryption (ABE) schemes requires the use of specific algebraic tools like bilinear pairings or lattices is well known in the cryptographic community. However, some journals whose main topics are not cryptographic still publish papers proposing, for instance, ABE schemes in ...
Javier Herranz, Thomas Haines
wiley +1 more source
LIMA: Local and Lightweight Mutual Authentication for VANETs
This work presents LIMA, a lightweight local authentication protocol for VANETs. It is a SAE J2735 compliant certificateless vehicle authentication that eliminates traditional PKI dependencies while providing geographic zone‐based security and time‐based attribute control.
Munkenyi Mukhandi +2 more
wiley +1 more source
ESPOON: Enforcing Encrypted Security Policies in Outsourced Environments [PDF]
The enforcement of security policies in outsourced environments is still an open challenge for policy-based systems. On the one hand, taking the appropriate security decision requires access to the policies.
Asghar, Muhammad Rizwan +3 more
core +1 more source
RLWE-based ciphertext-policy attribute proxy re-encryption
To solve LWE-based proxy re-encryption schemes cannot achieve fine-grained access and low efficiency problem,a ciphertext-policy attribute-based proxy re-encryption scheme was proposed.The scheme based on linear secret sharing scheme,RLWE and attribute ...
En ZHANG, Yaoyao PEI, Jiao DU
doaj +2 more sources
A Practical Attribute-Based Document Collection Hierarchical Encryption Scheme in Cloud Computing
Ciphertext-policy attribute-based encryption can provide fine-grained access control and secure data sharing to the data users in cloud computing. However, the encryption/decryption efficiency of existing schemes can be further improved when encrypting a
Junsong Fu, Na Wang
doaj +1 more source
The modern metropolis essentially demands the use of state‐of‐the‐art, real‐time surveillance systems, which should be reliable, scalable, and respectful of privacy at the same time. Critical shortcomings in traditional architectures are single points of failure, poor scalability, frequent data breaches, and inadequately managed privacy.
Shihab Sarar +4 more
wiley +1 more source
Anonymous and Adaptively Secure Revocable IBE with Constant Size Public Parameters [PDF]
In Identity-Based Encryption (IBE) systems, key revocation is non-trivial. This is because a user's identity is itself a public key. Moreover, the private key corresponding to the identity needs to be obtained from a trusted key authority through an ...
Chen, Jie +4 more
core
A Survey on Homomorphic Encryption Schemes: Theory and Implementation
Legacy encryption systems depend on sharing a key (public or private) among the peers involved in exchanging an encrypted message. However, this approach poses privacy concerns.
Acar, Abbas +3 more
core +1 more source
In this comment paper, we point out a security flaw in a data access control system which is built on ciphertext-policy attribute-based encryption (CP-ABE) and attribute-based signature schemes.
Syh-Yuan Tan
doaj +1 more source

