.png){kind=icon}
返回
Improved Proxy Re-Encryption With Delegatable Verifiability
.png){kind=icon}
PRE
AI
DOI：10.1109/JSYST.2019.2911556.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Proxy re-encryption cryptosystem enables proxy to re-encrypt the ciphertext and protects the privacy of the corresponding plaintext. Hence, this type of cryptosystem has found tremendous applications in data sharing in cloud computing, email forwarding, securing file systems, and so on. In practice, proxy re-encryption has to support verification of ciphertext to reduce the users' computational burden. The ciphertext verification can be achieved through a public, private, or delegatable manner. Delegatable verification is more generic in that it can be easily converted into the other two verification methods. However, almost all existing schemes with delegatable verifiability only achieve replayable chosen ciphertext security. Hence, in this paper we propose a more secure proxy re-encryption scheme with delegatable verifiability. Specifically, we utilize a short signature scheme to prevent an attacker from forging a valid ciphertext, and prevent an attacker from forging a signature. As a result, our scheme is secure against chosen ciphertext attacks under the standard model.
Keyword:
Chosen ciphertext attack
delegatable verifiability
proxy re-encryption
standard model
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
I
IF:
2.4
论文数:
4.5K
被引数:
387
机构
引用论文
MT-TL1 MITOCHONDRIAL DNA MUTATION IN A PATIENT WITH MELAS AND GITELMAN-LIKE SYNDROMEMT-TL1 线粒体DNA突变：一位伴有MELAS和Gitelman样综合征患者的病例
.png){kind=icon}
PREAI
分享收藏
查看更多内容