International Association for Cryptologic Research

International Association
for Cryptologic Research

CryptoDB

Xiaoqiu Ren

Publications

Year
Venue
Title
2010
EPRINT
Distinguishing Attacks on MAC/HMAC Based on A New Dedicated Compression Function Framework
Zheng Yuan Xiaoqiu Ren Jintao Liu
By the birthday attack, a new distinguisher with an inner partial collision is first presented. Using the distinguisher can attack on MAC/HMAC based on a dedicated compression function framework proposed in ChinaCrypt2008, with $2^{16.5}$ data complexity and $2^{16.5}$ MAC queries. More important, using the new distinguishing attack can recover the secret key of NMAC with the data complexities of $2^{16.5}$.

Coauthors

Jintao Liu (1)
Zheng Yuan (1)