摘要
基于身份的加密是一类很重要的公钥加密.给出了一个高效的基于身份的加密方案,提出的方案在标准模型下是针对选择密文攻击完全安全的,并运用线性无关的思路基于q-ABDHE假设证明了方案的安全性.方案具有高效性、公钥参数较短及配对计算较少的特点.
The identity-based encryption is an important type of public key encryption.In the past ten years,cryptography researchers put a lot of efforts on identity-based encryption,and a lot of research works have been obtained.At present,the best model is the one in which security is obtained against chosen ciphertext attacks in the standard model.This paper gives a practical identity-based encryption scheme.The proposed scheme is fully secure against the chosen ciphertext attacks in the standard model.Based on q-ABDHE hypothesis,we use the linearly independent thought to prove the security of the scheme.The proposed scheme has the advantages of high efficiency,shorter parameters of public key and less pairing computation.
出处
《成都大学学报（自然科学版）》
2014年第3期242-246,共5页
Journal of Chengdu University（Natural Science Edition）
基金
江苏省教育厅自然科学基金(14KJD520006)资助项目
