Algorithm 3: Simplified Fountain Code Decoder Algorithm (SFCDA)

Input: $C=\{c_0,c_1,\cdots ,c_x\}$: received encoded packets; l: size of each slice; s: encryption seed; t: total size of the shellcode Output: $P^{\prime }$: Byte array for the decoded plaintext shellcode 1 Step 1: Initialization 2 Initialize slices array and decoded indices set; 3 Step 2: Process each packet 21 Step 5: Return result 22 Return the decoded plaintext shellcode $P^{\prime }$;