Abstract. In this paper, we present an efficient cryptanalysis of the socalled HM cryptosystem which was published at Asiacrypt’1999, and one perturbed version of HM. Until now, ...
Hidden field equation (HFE) multivariable cryptosystems were first suggested by Patarin. Kipnis and Shamir showed that to make the cryptosystem secure, a special parameter D of a...
Abstract. We apply internal perturbation [3] to the matrix-type cryptosystems [Cn] and HM constructed in [9]. Using small instances of these variants, we investigate the existence ...
Zhiping Wu, Jintai Ding, Jason E. Gower, Dingfeng ...
The paper analyzes CFVZ, a new public key cryptosystem whose security is based on a matrix version of the discrete logarithm problem over an elliptic curve. It is shown that the co...