7 papers
PakeMail: authentication and key management in decentralized secure email and messaging via PAKE
Itzel Vazquez Sandoval, Arash Atashpendar, Gabriele Lenzini +1
We propose the use of PAKE for achieving and enhancing entity authentication (EA) and key management (KM) in the context of decentralized end-to-end encrypted email and secure mess…
Authentication and Key Management Automation in Decentralized Secure Email and Messaging via Low-Entropy Secrets
Itzel Vazquez Sandoval, Arash Atashpendar, Gabriele Lenzini
We revisit the problem of entity authentication in decentralized end-to-end encrypted email and secure messaging to propose a practical and self-sustaining cryptographic solution b…
From Information Theory Puzzles in Deletion Channels to Deniability in Quantum Cryptography
Arash Atashpendar
From the output produced by a memoryless deletion channel with a uniformly random input of known length , one obtains a posterior distribution on the channel input. The differen…
Coercion-Resistant Voting in Linear Time via Fully Homomorphic Encryption: Towards a Quantum-Safe Scheme
Peter B. Rønne, Arash Atashpendar, Kristian Gjøsteen +1
We present an approach for performing the tallying work in the coercion-resistant JCJ voting protocol, introduced by Juels, Catalano, and Jakobsson, in linear time using fully homo…
Revisiting Deniability in Quantum Key Exchange via Covert Communication and Entanglement Distillation
Arash Atashpendar, G. Vamsi Policharla, Peter B. Rønne +1
We revisit the notion of deniability in quantum key exchange (QKE), a topic that remains largely unexplored. In the only work on this subject by Donald Beaver, it is argued that QK…
A Proof of Entropy Minimization for Outputs in Deletion Channels via Hidden Word Statistics
Arash Atashpendar, David Mestel, A. W. Roscoe +1
From the output produced by a memoryless deletion channel from a uniformly random input of known length , one obtains a posterior distribution on the channel input. The differen…