Research Article

Securing E-Healthcare Images Using an Efficient Image Encryption Model

Algorithm 1

Proposed encryption algorithm for medical images.
Input: plain image
 Output: encrypted image
 / Decompose into red , green , and blue matrices./
(:,:, 1)
(:,:, 2)
(:,:, 3)
  obtain secret key , with utilizing equations (1) and (2)
 //Diffuse color channels using , , and
   mod(, )
mod(, )
mod( ”, )
mod(, )
mod( ’, )
  //Modify keys , , and by considering
 //Diffuse ”, ”, and ” utilizing , ”, and
mod( ” + ”, 256)
mod( ” + ”, 256)
mod( ” + ”, 256)
 //Obtain an encrypted image by concatenating scrambled channels
cat(, , )
return