Quantum cryptography is arguably the fastest growing area in quantum information science.
Novel theoretical protocols are designed on a regular basis, security proofs are constantly …

Protocols for secure multi-party computation (MPC) that resist a dishonest majority are
susceptible to “denial of service” attacks, allowing even a single malicious party to force the …

Proactive obfuscation is a new method for creating server replicas that are likely to have
fewer shared vulnerabilities. It uses semantics-preserving code transformations to generate …

Digital signatures are widely used for providing security of communications. At the same
time, the security of currently deployed digital signature protocols is based on unproven …

An important benchmark for multi-party computation protocols (MPC) is their round
complexity. For several important MPC tasks, such as broadcast,(tight) lower bounds on the …

Unconditionally secure signature (USS) schemes provide the ability to electronically sign
documents without the reliance on computational assumptions needed in traditional digital …

Secure multiparty computation (MPC) on incomplete communication networks has been
studied within two primary models:(1) where a partial network is fixed a priori, and thus …

Digital signatures are one of the most important cryptographic primitives. In this work we
construct an information-theoretically secure signature scheme which, unlike prior schemes …

Anonymous channels or similar techniques that achieve sender's anonymity play important
roles in many applications, eg electronic voting. However, they will be meaningless if …

A chaffing-and-winnowing is a cryptographic scheme which does not require encryption but
instead use a message authentication code (MAC) to provide the same function as …