International Association for Cryptologic Research

International Association
for Cryptologic Research

CryptoDB

Ryo Nojima

Publications

Year
Venue
Title
2010
EPRINT
Efficiency-Improved Fully Simulatable Adaptive OT under the DDH Assumption
At Asiacrypt 2009, Kurosawa and Nojima showed a fully simulatable adaptive oblivious transfer (OT) protocol under the DDH assumption in the standard model. However, Green and Hohenberger pointed out that the communication cost of each transfer phase is O(n), where n is the number of the sender's messages. In this paper, we show that the cost can be reduced to O(1) by utilizing a verifiable shuffle protocol.
2009
ASIACRYPT

Coauthors

Kaoru Kurosawa (2)
Le Trieu Phong (1)