Xiaolei Dong

Accountable Authority Ciphertext-Policy Attribute-Based Encryption with White-Box Traceability and Public Auditing in the Cloud.

2015 · IACR Cryptology ePrint Archive

Abstract. As a sophisticated mechanism for secure fine-grained ac-cess control, ciphertext-policy attribute-based encryption (CP-ABE) is a highly promising solution for commercial applications such as cloud com-puting. However, there still exists one major issue awaiting to …

Linkable, <i>k</i>-Times Traceable, and Revocable Ring Signature for Fine-Grained Accountability in Blockchain Transactions

2024 · IEEE Internet of Things Journal

Ring signatures are a useful cryptographic technique for anonymous transactions on the blockchain, which allows a user to sign a message on behalf of a group, without revealing which specific member of the group did …