Registration-based encryption (RBE) was recently introduced as an alternative to identity-
based encryption (IBE), to resolve the key-escrow problem: In RBE, the trusted authority is …

Threshold signatures protect the signing key by sharing it among a group of signers so that
an adversary must corrupt a threshold number of signers to be able to forge signatures …

A blockchain is a data structure consisting of a list of blocks containing transactions and
maintained by a network of nodes in a decentralized manner. In permissionless blockchains …

We propose hinTS—a new threshold signature scheme built on top of the widely used BLS
signatures. Our scheme enjoys the following attractive features: A silent setup process …

Abstract Zero-Knowledge Proofs (ZKPs), especially Succinct Non-interactive ARguments of
Knowledge (SNARKs), have garnered significant attention in modern cryptographic …

Web users can gather data from secure endpoints and demonstrate the provenance of
sensitive data to any third party by using privacy-preserving TLS oracles. In practice, privacy …

Decentralization has been touted as the principal security advantage which propelled
blockchain systems at the forefront of developments in the financial technology space. Its …

Zero-knowledge proofs introduce a mechanism to prove that certain computations were
performed without revealing any underlying information and are used commonly in …

Threshold variants of the Schnorr signature scheme have recently been at the center of
attention due to their applications to cryptocurrencies. However, existing constructions for …

A randomness beacon is a source of continuous and publicly verifiable randomness which
is of crucial importance for many applications. Existing works on distributed randomness …