The paper "Cryptographic requirements for chaotic secure communications" by Gonzalo Álvarez and Shujun Li addresses the lack of detailed implementation and security analysis in existing chaotic cryptosystems. The authors provide a set of guidelines to enhance the rigor and practicality of new chaotic cryptosystems. These guidelines cover key management, security analysis, and practical aspects such as implementation, channel noise, limited bandwidth, and attenuation. The paper emphasizes the importance of defining and characterizing the key space, ensuring dynamical degradation is considered in digital systems, and conducting thorough security analysis to resist common and chaos-specific attacks. The guidelines aim to make new chaotic cryptosystems more acceptable to the cryptography community and to ensure they are secure and robust.The paper "Cryptographic requirements for chaotic secure communications" by Gonzalo Álvarez and Shujun Li addresses the lack of detailed implementation and security analysis in existing chaotic cryptosystems. The authors provide a set of guidelines to enhance the rigor and practicality of new chaotic cryptosystems. These guidelines cover key management, security analysis, and practical aspects such as implementation, channel noise, limited bandwidth, and attenuation. The paper emphasizes the importance of defining and characterizing the key space, ensuring dynamical degradation is considered in digital systems, and conducting thorough security analysis to resist common and chaos-specific attacks. The guidelines aim to make new chaotic cryptosystems more acceptable to the cryptography community and to ensure they are secure and robust.