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Table 6 The efficiency of our scheme compared with (Chen et al. 2020)

From: Verifiable image revision from chameleon hashes

Scheme

Image size

n

s

Authentication

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Our scheme

\(512\times 512\)

16

\(128\times 128\)

     13.5 ms

26.4 ms

11.5 ms

(Chen et al. 2020)

\(512\times 512\)

16

\(128\times 128\)

     31 ms

6 ms

15 ms

  1. n: the number of areas, s: the size of the areas