Distributed certificateless key encapsulation mechanism secure against the adaptive adversary

作者：Long, Yu^*; Li, Xiang Xue; Chen, Ke Fei; Hong, Xuan

来源：Journal of Shanghai Jiaotong University (Science), 2009, 14 E(1): 102-106.

DOI：10.1007/s12204-009-0102-7

• Adaptive adversary
• Adaptive security
• Certificateless
• Chosen ciphertext attack
• Discrete logarithms
• Key encapsulation mechanisms
• Public key cryptosystems
• Random Oracle model

<正>This paper proposes an adaptively secure solution to ce(?)tificateless distributed key encapsulation mechanism from pairings by using Canetti’s adaptive secure key generation scheme based on discrete logarithm. The proposed scheme can withstand adaptive attackers that can choose players for corruption at any time during the run of the protocol,and this kind of attack is powerful and realistic.In contrast,all previously presented threshold certificateless public key cryptosystems are proven secure against the more idealized static adversaries only.They choose and fix the subset of target players before running the protocol.We also prove security of this scheme in the random oracle model.

• 出版日期2009
• 单位上海交通大学; 西安电子科技大学