Finally, by the theoretical analysis and performance evaluation for our scheme with other state-of-art schemes, we can observe that our encryption and authentication schemes are both efficient and applicable for the distributed IoT-assisted cloud computing....
最近由于偶然原因,接触了CP-ABE(Ciphertext-Policy Attribute-Based Encryption),学了一段时间,觉得挺精妙,记录并分享一下学习心得。 什么是ABE(Attribute-Based Encryption)? 一言以蔽之:这是一种可以实现精准化访问控制功能的基于公钥密码的算法。 ABE 根据访问策略嵌入实体的不同可以分为两种: CP-ABE:将访问策略...
To conquer this issue, attribute-based encryption (ABE) was introduced. In ABE, one ciphertext can be efficiently shared to multiple receivers rather than one-to-one data sharing in PKI and IBE. ABE has been used to build many cryptosystems [32], [33], [31], [21], [25] to provide...
Waters: Online/Offline Attribute-Based Encryption. 293-310. In Public Key Cryp- tography, pages 293-310, 2014.HOHENBERGER S, WATERS B. Online/offline attribute-based encryption [ M]// KRAWCZYK H. Public-Key Cryptography- PKC 2014, LNCS 8383. Berlin: Springer, 2014:293 -310....
属性加密泄露的辅助输入Attribute-basedEncryptionResilienttoAux •ProblemStatement•Attribute-BasedEncryptionw/AuxiliaryInputs andContinualAuxiliaryInputs•OurTechniques 2 •Thecentralnotionofmoderncryptographyreliesonthesecrecyofthesecretkey.•Inpractice,thisparadigmissubjecttotheimmanentthreatofside-channel...
上次提到了属性基加密的一个由来,从那之后,业界大佬继续研究,得到了一种多权威机构的属性基加密。本文的主要内容基于顶会论文TCC 2007年的文章:Multi-authority Attribute Based Encryption Sahai和Waters描述过一个方案(称为SW),在这个方案中,发送方指定一个属性集和一个数字d对消息进行加密,这样当至少拥有d个给定属...
acommunal areas 共同区域[translate] a沉稳,专注 calm, focus;[translate] a首先,我每天早上要背十个单词。积累单词! First, I every day early morning must carry ten words.Accumulation word![translate] aAttribute-Based Encryption 基于归因于的加密[translate]...
In this paper, we propose the notion of Verifiable Attribute-Based Encryption (VABE) and give two constructs of key-policy VABE. One is with a single authority, and the other is with multi authorities. Not only our schemes are proved secure as the previous ABE schemes, they also provide ...
KatsuyukiTakashima MitsubishiElectric BrentWaters TheUniversityofTexasatAustin FunctionalEncryption •Functionalityf(x,y)–specifieswhatwillbelearnedaboutciphertext y x Application Whoshouldbeabletoreadmydata?accesspolicy Attribute-BasedEncryption[SW05]Ciphertexts:associatedwithaccessformulas (AÇB)ÆCSecretKeys...
Attribute-Based Encryption.By using our techniques encrypted data can be kept con-fidential even if the storage server is untrusted; moreover,our methods are secure against collusion attacks. Previ-ous Attribute-Based Encryption systems used attributes todescribe the encrypted data and built policies ...