Cryptanalysis of a multistage encryption system

— This paper analyzes the security of a new multistage encryption system (MES) recently proposed in ISCAS’2004. It is found that MES is insecure against a differential chosenplaintext/ciphertext attack. Experiments are given to support the proposed attack. It is also pointed out that the security of MES against brute-force attacks is not sufficiently high.

• Type: Conference
• Year: 2005
• Where: ISCAS
• Authors: Chengqing Li, Xinxiao Li, Shujun Li, Guanrong Chen
• Keywords: Brute-force Attacks, ISCAS 2005, Security