A New Medical Images Encryption algorithm Based on Gold Code: Futures Trends Towards Telemedicine

The rising necessity for telemedicine has made the healthcare sector an urgent and unlimited necessity to secure important data sent between medical centers for treatment purposes. The medical image encryption is a significant technique to attain a medical images security (MIS). There are numerous researchers utilized advanced encryption standard (AES) to guarantee of MIS. The direct application of AES encryption technology on medical images led to a long-time of processing; also it leads to a clear background regions, which are considered defects. This article includes the application of information theory (IT) to detect regions of the medical image that include, ROI (regions of interest) and ROB (regions of background). To reduce processing time and protect the medical image by utilizing AES with a higher degree of protection, a hybrid encryption is applied to ROI, and a method of coding such as gold code (GC) is applied to ROB after creation. The proposed method involves less time processing for the entire medical image of the AES application and has the best possible security as described in the entropy and link calculations.