TY - GEN
T1 - A new perturbed Matsumoto-Imai signature scheme
AU - Zhang, Wenbin
AU - Tan, Chi How
PY - 2014
Y1 - 2014
N2 - Two new modification methods, triangular perturbation and dual perturbation, are proposed for multivariate signature schemes to enhance the security with almost no loss of efficiency. A new multivariate signature scheme is then constructed by applying the two new methods together to the well-known Matsumoto-Imai cryptosystem. This new signature scheme has a specially designed structure making it have several competitive advantages: 1) the public map remains surjective (this property is important for a signature scheme), 2) it is almost as efficient as the original scheme and 3) it can resist all current known structure-based attacks to MPKC and behave like a random system against direct attacks. A new efficient and effective modification method is thus provided for multivariate signature schemes.
AB - Two new modification methods, triangular perturbation and dual perturbation, are proposed for multivariate signature schemes to enhance the security with almost no loss of efficiency. A new multivariate signature scheme is then constructed by applying the two new methods together to the well-known Matsumoto-Imai cryptosystem. This new signature scheme has a specially designed structure making it have several competitive advantages: 1) the public map remains surjective (this property is important for a signature scheme), 2) it is almost as efficient as the original scheme and 3) it can resist all current known structure-based attacks to MPKC and behave like a random system against direct attacks. A new efficient and effective modification method is thus provided for multivariate signature schemes.
KW - digital signature
KW - multivariate public key cryptosystem
KW - post-quantum cryptography
UR - https://www.scopus.com/pages/publications/84903173972
U2 - 10.1145/2600694.2600698
DO - 10.1145/2600694.2600698
M3 - Conference Proceeding
AN - SCOPUS:84903173972
SN - 9781450328012
T3 - ASIAPKC 2014 - Proceedings of the 2nd ACM Workshop on ASIA Public-Key Cryptography
SP - 43
EP - 47
BT - ASIAPKC 2014 - Proceedings of the 2nd ACM Workshop on ASIA Public-Key Cryptography
PB - Association for Computing Machinery
T2 - 2nd ACM Asia Public-Key Cryptography Workshop, AsiaPKC 2014
Y2 - 3 June 2014 through 3 June 2014
ER -