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1. 电子科技大学 信息与软件工程学院,四川 成都 611731
2. 中国科学院信息工程研究所 信息安全国家重点实验室,北京 100093
3. 电子科技大学 计算机科学与工程学院,四川 成都 611731
[ "聂旭云(1975-),男,江西樟树人,电子科技大学副教授、硕士生导师,主要研究方向为多变量公钥密码、代数攻击等。" ]
[ "刘波(1990-),男,重庆人,电子科技大学硕士生,主要研究方向为多变量公钥密码。" ]
[ "鲁刚(1976-),男,四川成都人,电子科技大学博士生,主要研究方向为多变量公钥密码。" ]
[ "钟婷(1977-),女,四川成都人,电子科技大学副教授、硕士生导师,主要研究方向为云计算安全。" ]
网络出版日期:2015-06,
纸质出版日期:2015-06-25
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聂旭云, 刘波, 鲁刚, 等. 新扩展多变量公钥密码方案的安全性分析[J]. 通信学报, 2015,36(6):60-65.
Xu-yun NIE, Bo LIU, Gang LU, et al. Cryptanalysis of novel extended multivariate public key cryptosystem[J]. Journal on communications, 2015, 36(6): 60-65.
聂旭云, 刘波, 鲁刚, 等. 新扩展多变量公钥密码方案的安全性分析[J]. 通信学报, 2015,36(6):60-65. DOI: 10.11959/j.issn.1000-436x.2015182.
Xu-yun NIE, Bo LIU, Gang LU, et al. Cryptanalysis of novel extended multivariate public key cryptosystem[J]. Journal on communications, 2015, 36(6): 60-65. DOI: 10.11959/j.issn.1000-436x.2015182.
新扩展多变量公钥密码方案是乔等提出的一种多变量公钥密码体制的安全性增强方案。该方案引入了一个非线性“温顺变换”,试图隐藏原始方案的弱点,如线性化方程。然而,分析表明,若原始方案满足线性化方程,则改进方案必然满足二次化方程。给定公钥,在找到所有的二次化方程之后,将要破解的合法密文代入到二次化方程中,可以得到关于明文变量的二次方程。这降低了要求解的方程组的次数。结合Groebner基方法,可以快速地恢复合法密文相应的明文。
The novel extended multivariate public key cryptosystem is a new security enhancement method on multivariate public key cryptosystems
which is proposed by Qiao
et al.A nonlinear invertible transformation was used
named“tame transformation”
on the original multivariate public key cryptosystem to hide its weakness such as linearization equation.However
it is found that if there are many linearization equations satisfied by the original MPKC
there would be many quadratization equations (QE) satisfied by the improved scheme.Given a public key
after finding all QE
a valid cipheretext can be substituted into the QE to derive a set of quadratic equations on the plaintext variable.This exactly reduce the degree of the system wanted to solve.Then the corresponding plaintext can be recovered for a given valid ciphertext combining with Groebner basis method.
DING J T , GOWER J , SCHMIDT D . Multivariate Public Key Cryptosystems [M ] . Berlin : Springer-VerlagPress , 2006 .
PATARIN J . Cryptanalysis of the Matsumoto and Imai public key scheme of eurocrypt 1988 [A ] . Proceedings of Advances in Cryptology,Crypto 1995 [C ] . Santa Barbara,California,USA , 1995 . 248 - 261 .
MATSUMOTO T , IMAI H . Public quadratic polynomial-tuples for efficient signature verification and message encryption [A ] . Proceedings of Advances in Cryptology- Eurocrypt’88 [C ] . Davos,Switzerland , 1988 . 419 - 453 .
DING J T,HU L , NIE X Y , LI J Y,WAGNERJ . High order linearization equation (HOLE) attack on multivariate public key cryptosystems [A ] . Proceedings of Public key Cryptography-PKC 2007 [C ] . Beijing,China , 2007 . 233 - 248 .
WANG L C,YANG B Y , HU Y H , LAI F . A medium-field multivariate public-key encryption scheme [A ] . Proceedings of Topics in Cryptology,CT-RSA 2006 [C ] . San Jose,CA,USA , 2006 . 132 - 149 .
WANG X,FENG F , WANG X , WANG Q . A more secure MFE multivariate public key encryption scheme [J ] . International Journal of Computer Science and Applications , 2009 , 6 ( 3 ): 1 - 9 .
CAO W W,NIE X Y,HU L , TANG X L , DING J T . Cryptanalysis of two quartic encryption schemes and one improved MFE scheme [A ] . Proceedings of Cryptology,PQCrypto 2010 [C ] . Darmstadt,Germany , 2010 . 41 - 60 .
乔帅庭 , 李益发 , 韩文报 . 新扩展多变量公钥密码方案 [J ] . 通信学报 , 2014 , 35 ( 4 ): 148 - 154 .
QIAO S T , LI Y F , HAN W B . Novel extended multivariate public key cryptosystem [J ] . Journal on Communications , 2014 , 35 ( 4 ): 148 - 154 .
NIE X Y,PETZOLDT A , BUCHMANN J , LI F G . Linearization equation attack on 2-layer nonlinear piece in hand method [J ] . IEICE Transactions , 2014 , 97 ( 9 ): 1952 - 1961 .
DIENE A,DING J T,GOWER J E , HODGES T J , YIN Z J . Dimension of the linearization equations of the Matsumoto-Imai cryptosystems [A ] . Proceedings of Code and Cryptography—WCC 2005 [C ] . Bergen,Norway , 2005 . 242 - 251 .
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