International Association for Cryptologic Research

International Association
for Cryptologic Research

CryptoDB

Ananth Raghunathan

Affiliation: Google

Publications

Year
Venue
Title
2015
EPRINT
2015
EPRINT
2013
CRYPTO
2013
CRYPTO
2013
CRYPTO
2013
ASIACRYPT
2013
EUROCRYPT
2010
EPRINT
Algebraic Pseudorandom Functions with Improved Efficiency from the Augmented Cascade
Dan Boneh Hart Montgomery Ananth Raghunathan
We construct an algebraic pseudorandom function (PRF) that is more efficient than the classic Naor- Reingold algebraic PRF. Our PRF is the result of adapting the cascade construction, which is the basis of HMAC, to the algebraic settings. To do so we define an augmented cascade and prove it secure when the underlying PRF satisfies a property called parallel security. We then use the augmented cascade to build new algebraic PRFs. The algebraic structure of our PRF leads to an efficient large-domain Verifiable Random Function (VRF) and a large-domain simulatable VRF.

Program Committees

Crypto 2018