Fuyuki Kitagawa

Non-Committing Encryption with Constant Ciphertext Expansion from Standard Assumptions.

2020

Non-committing encryption (NCE) introduced by Canetti et al. (STOC ’96) is a central tool to achieve multi-party computation protocols secure in the adaptive setting. Recently, Yoshida et al. (ASIACRYPT ’19) proposed an NCE scheme based …

Certified Everlasting Secure Collusion-Resistant Functional Encryption, and More

2023 · arXiv (Cornell University)

We study certified everlasting secure functional encryption (FE) and many other cryptographic primitives in this work. Certified everlasting security roughly means the following. A receiver possessing a quantum cryptographic object can issue a certificate showing …