Abstract Registration-Based Encryption (RBE)[Garg et al. TCC'18] is a public-key encryption
mechanism in which users generate their own public and secret keys, and register their …

Abstract Publicly Verifiable Secret Sharing (PVSS) allows a dealer to publish encrypted
shares of a secret so that parties holding the corresponding decryption keys may later …

Achieving adaptive (or proactive) security in cryptographic protocols is notoriously difficult
due to the adversary's power to dynamically corrupt parties as the execution progresses …

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 …

Blockchain protocols have revolutionized how individuals and devices interact and transact
over the internet. More recently, a trend has emerged to harness blockchain technology as a …

Time-lock puzzles (TLP) are a fascinating type of cryptographic problem that is easy to
generate, but takes a certain time to solve, even when arbitrary parallel speedup is allowed …

Due to the advent of healthcare wireless medical sensor networks (HWMSNs) technology,
the traditional model of medical treatment has been transformed. In HWMSNs environments …

Abstract A $(t, n) $-public key threshold cryptosystem allows distributing the execution of a
cryptographic task among a set of $ n $ parties by splitting the secret key required for the …

We initiate a formal study of individual cryptography. Informally speaking, an algorithm Alg is
individual if, in every implementation of Alg, there always exists an individual user with full …

The danger of cyber-attacks is constant in the current digital environment. The necessity for
effective security actions are more crucial than ever before due to the increasingly complex …