A Secure and Efficient ECC-Based Scheme for Edge Computing and Internet of Things

. 2020 Oct 29;20(21):6158. doi: 10.3390/s20216158

Algorithm 4:Converting a plain text into a set of blocks.

Input:

T h e p l a i n t e x t M a n d p

Output:

S e t o f b l o c k s

S e n d e r : o b t a i n t h e p l a i n t e x t M

;

S e n d e r : c a l c u l a t e t h e s i z e o f e a c h b l o c k

;

N \leftarrow ⌊ \frac{192 - 8}{8} ⌋

;

S e n d e r : c a l c u l a t e t h e n u m b e r o f b l o c k s

;

B \leftarrow ⌈ \frac{M}{N} ⌉

;

S e n d e r : d i v i d e t h e p a l i n t e x t i n t o B b l o c k s o f s i z e N

;

f o r i = 1; i < = B; i + +

;

f o r j = 1; j < = N; j + +

;

S e n d e r : o b t a i n t h e B_{i} = B_{i} + A S C I I (c_{j + ((i - 1) * N)})

;

S e t o f b l o c k s \leftarrow t h e r e s u l t s