The following publications are possibly variants of this publication:
- Directly revocable key-policy attribute-based encryption with verifiable ciphertext delegationYanfeng Shi, Qingji Zheng, Jiqiang Liu, Zhen Han. isci, 295:221-231, 2015. [doi]
- Ciphertext-policy hierarchical attribute-based encryption with short ciphertextsHua Deng, Qianhong Wu, Bo Qin, Josep Domingo-Ferrer, Lei Zhang, Jianwei Liu, Wenchang Shi. isci, 275:370-384, 2014. [doi]