Cryptanalysis of a new chaotic cryptosystem based on ergodicity
  This paper analyzes the security of a recent cryptosystem based on the ergodicity property of chaotic maps. It is shown how to obtain the secret key using a chosen-ciphertext attack. Some other design weaknesses are also shown. 
David Arroyo, Gonzalo Alvarez, Shujun Li, Chengqing Li, Veronica   Fernandez