Now showing items 1-6 of 6

• #### An algebraic framework for Diffie-Hellman assumptions ﻿

(2017-01)
Article
Open Access
We put forward a new algebraic framework to generalize and analyze Di e-Hellman like Decisional Assumptions which allows us to argue about security and applications by considering only algebraic properties. Our D;k-MDDH ...
• #### An algebraic framework for Diffie–Hellman assumptions ﻿

(2015-10-22)
Article
Open Access
We put forward a new algebraic framework to generalize and analyze Diffie-Hellman like Decisional Assumptions which allows us to argue about security and applications by considering only algebraic properties. Our D,k-MDDH ...
• #### Constant size ciphertexts in threshold attribute-based encryption ﻿

(Springer Verlag, 2010)
Conference report
Open Access
Attribute-based cryptography has emerged in the last years as a promising primitive for digital security. For instance, it provides good solutions to the problem of anonymous access control. In a ciphertextpolicy attribute-based ...
• #### Matrix computational assumptions in multilinear groups ﻿

(2015-04-20)
External research report
Open Access
We put forward a new family of computational assumptions, the Kernel Matrix Di e- Hellman Assumption. Given some matrix A sampled from some distribution D `;k , the kernel as- sumption says that it is hard to nd \in the exponent
• #### The Kernel Matrix Diffie-Hellman Assumption ﻿

(2016-12)
Article
Open Access
We put forward a new family of computational assumptions, the Kernel Matrix Diffie-Hellman Assumption. Given some matrix A sampled from some distribution D, the kernel assumption says that it is hard to find “in the exponent” ...
• #### The Kernel Matrix Diffie-Hellman assumption ﻿

(Springer, 2016)
Conference lecture
Open Access
We put forward a new family of computational assumptions, the Kernel Matrix Diffie-Hellman Assumption. Given some matrix A sampled from some distribution D, the kernel assumption says that it is hard to find “in the exponent” ...