Cryptanalyzing a novel pseudorandom number generator based on pseudorandomly enhanced logistic map

In this paper, a security analysis of the novel pseudorandom number generator based on pseudorandomly enhanced logistic map is made, which reveals the existence of serious security problem. Although the assumed safety of this pseudorandom number generator (PRNG) is estimated at 2128\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$2^{128}$$\end{document}, it is possible to carry out successful brute-force attack with the complexity of about 270\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$2^{70}$$\end{document}. For this reason, analyzed PRNG cannot be considered safe for the use in cryptographic systems.