TY - GEN
T1 - Cryptanalysis of the TRMC-4 public key cryptosystem
AU - Nie, Xuyun
AU - Hu, Lei
AU - Ding, Jintai
AU - Li, Jianyu
AU - Wagner, John
PY - 2007
Y1 - 2007
N2 - In 2006, the inventors of TRMC public key cryptosystem proposed a new variant of TRMC, TRMC-4, which can resist the existing attack, in particular, the Joux et al attack. In this paper, we show that the new version is vulnerable to attack via the linearization equations (LE) method. For any given valid ciphertext and its corresponding TRMC-4 public key, we can derive the corresponding plaintext within 224 double-struck F sign 28-operations, after performing once for the public key a computation of complexity less than 234. Our results are confirmed by computer experiments.
AB - In 2006, the inventors of TRMC public key cryptosystem proposed a new variant of TRMC, TRMC-4, which can resist the existing attack, in particular, the Joux et al attack. In this paper, we show that the new version is vulnerable to attack via the linearization equations (LE) method. For any given valid ciphertext and its corresponding TRMC-4 public key, we can derive the corresponding plaintext within 224 double-struck F sign 28-operations, after performing once for the public key a computation of complexity less than 234. Our results are confirmed by computer experiments.
KW - Algebraic cryptanalysis
KW - Linearization equation
KW - Multivariate public key cryptosystem
KW - Quadratic polynomial
KW - TRMC
UR - http://www.scopus.com/inward/record.url?scp=38049044803&partnerID=8YFLogxK
U2 - 10.1007/978-3-540-72738-5_7
DO - 10.1007/978-3-540-72738-5_7
M3 - Conference Proceeding
AN - SCOPUS:38049044803
SN - 9783540727378
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 104
EP - 115
BT - Applied Cryptography and Network Security - 5th International Conference, ACNS 2007, Proceedings
PB - Springer Verlag
T2 - 5th International Conference on Applied Cryptography and Network Security, ACNS 2007
Y2 - 5 June 2007 through 8 June 2007
ER -