Universal atomic swaps: Secure exchange of coins across all blockchains

SAK Thyagarajan, G Malavolta… - … IEEE symposium on …, 2022 - ieeexplore.ieee.org
Trading goods lies at the backbone of the modern economy and the recent advent of
cryptocurrencies has opened the door for trading decentralized (digital) assets: A large …

Leveraging linear decryption: Rate-1 fully-homomorphic encryption and time-lock puzzles

Z Brakerski, N Döttling, S Garg, G Malavolta - Theory of Cryptography …, 2019 - Springer
We show how to combine a fully-homomorphic encryption scheme with linear decryption
and a linearly-homomorphic encryption schemes to obtain constructions with new …

Delay encryption

J Burdges, L De Feo - Annual International Conference on the Theory and …, 2021 - Springer
We introduce a new primitive named Delay Encryption, and give an efficient instantiation
based on isogenies of supersingular curves and pairings. Delay Encryption is related to …

Candidate iO from homomorphic encryption schemes

Z Brakerski, N Döttling, S Garg, G Malavolta - Journal of Cryptology, 2023 - Springer
We propose a new approach to construct general-purpose indistinguishability obfuscation
(iO). Our construction is obtained via a new intermediate primitive that we call split fully …

Time-lock puzzles from lattices

S Agrawalr, G Malavolta, T Zhang - Annual International Cryptology …, 2024 - Springer
Time-lock puzzles (TLP) are a cryptographic tool that allow one to encrypt a message into
the future, for a predetermined amount of time T. At present, we have only two constructions …

Verifiable timed signatures made practical

SAK Thyagarajan, A Bhat, G Malavolta… - Proceedings of the …, 2020 - dl.acm.org
A verifiable timed signature (VTS) scheme allows one to time-lock a signature on a known
message for a given amount of time T such that after performing a sequential computation …

On the security of time-lock puzzles and timed commitments

J Katz, J Loss, J Xu - … of Cryptography: 18th International Conference, TCC …, 2020 - Springer
Time-lock puzzles—problems whose solution requires some amount of sequential effort—
have recently received increased interest (eg, in the context of verifiable delay functions) …

A blockchain-based traceable self-tallying E-voting protocol in AI era

H Li, Y Li, Y Yu, B Wang, K Chen - IEEE transactions on …, 2020 - ieeexplore.ieee.org
Artificial intelligence (AI) has demonstrated huge potential in a variety of real-world
applications. However, some significant considerations like fairness, transparency and …

Efficient CCA timed commitments in class groups

SAK Thyagarajan, G Castagnos… - Proceedings of the …, 2021 - dl.acm.org
Timed commitments Boneh and Naor, CRYPTO 2000 are the timed analogue of standard
commitments, where the commitment can be non-interactively opened after a pre-specified …

Riggs: Decentralized sealed-bid auctions

N Tyagi, A Arun, C Freitag, R Wahby… - Proceedings of the …, 2023 - dl.acm.org
We introduce the first practical protocols for fully decentralized sealed-bid auctions using
timed commitments. Timed commitments ensure that the auction is finalized fairly even if all …