Identity-Based Encryption with Forward Security

摘要：

Standard identity-based encryption schemes typically rely on the assumption that secret keys are kept perfectly secure. However, with more and more cryptographic primitives are deployed on insecure devices, key exposure seems inevitable. In this paper, we propose an Identity-based encryption scheme with forward security. In the scheme, secret keys are updated at regular periods of time; furthermore, exposure of a secret key corresponding to a given time period does not enable an adversary to break the scheme for any prior time period. The scheme achieves security against chosen ciphertext attacks under the bilinear Diffie-Hellman assumption in the random oracle model.

作者: Hongwei Li Haomiao Yang Fan Li

会议类型: 国际会议

会议名称: 2009国际通信电路与系统学术会议(ICCCAS 2009)(2009 International Conference on Communications，Circuits and Systems)

会议地点: 成都

会议语种:英文

页码: 287-290

在线出版日期: 2009-07-23（万方平台首次上网日期，不代表论文的发表时间）