Table 1 List of symbols.

From: An optimized novel lightweight block cipher for image encryption

Symbols

Operations

\(>>>\)7

Circular right shift by 7

\(>>>\)2

Circular right shift by 2

\(<<<\)7

Circular left shift by 7

\(<<<\)2

Circular left shift by 2

\(\oplus\)

XOR operation

\(\boxplus\)

Addition modulo operation

\(\boxminus\)

Subtraction modulo operation