Comparative study on AES and RSA algorithm for medical images

Scalability of network with the expanding number of system a data exchange is crucial to permit secure information transmission in the network environment. The sending information or image may defiled by any outsider on the off chance that it is not secured. In medical field it is essential to secure the data or images. There are many techniques available to ensure the security of images in medical field like RSA, AES, and Watermarking. RSA is a public key cryptographic technique, makes use of pair of keys (public key, private key) and AES is a private key cryptosystem and is based on Substitution Permutation Network Using these techniques the host can encrypt and decrypt the image and can keep digital images safe. Watermarking is the process of hiding the information in any multimedia for the authentication and confidentiality of data. This paper recommends which is the best method among various techniques by considering every one of the techniques. By contrasting the different systems this paper can arrive at a conclusion that which is the best methods to guarantee the security of image.