Security measurement of a medical communication scheme based on chaos and DNA coding

To encrypt sensitive information existing in a color DICOM images, medical privacy protection scheme (called as MPPS) based on chaos and DNA coding was proposed by using two coupled chaotic systems to produce cryptographic primitives. Relying some empirical analyzes experimental results, the designers of MPPS claimed that it can withstand chosen-plaintext attack other classic attacking models. However, this statement is groundless. In paper, we investigate essential properties coding, then propose an efficient disclose its equivalent secret-key. The only needs ? log 256 ( 3 ? M N ) ? + 4 pair chosen plain-images corresponding cipher-images, where × “3” are size RGB image number channels, respectively. addition, superiorities questioned from perspective modern cryptography. Both theoretical results presented support efficiency reported security faults. cryptanalysis will promote proper application encoding protect multimedia data, especially image.