Compact Implementations of HIGHT Block Cipher on IoT Platforms

Table 4

Delta update process in 8-bit AVR instruction sets.

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Input: temporal storage (TEMP), input delta (DELTA)

Output: output delta (DELTA)

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1: CLR TEMP

2: BST DELTA, 0

3: BLD DELTA, 7

4: BST DELTA, 3

5: BLD TEMP, 7

6: EOR DELTA, TEMP

7: LSR DELTA

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