Research Article
Image Encryption Using a Lightweight Stream Encryption Algorithm
Table 1
Entropy results of encrypted images. Grayscale type with 256 × 256 size.
| | File name | File description | The proposed algorithm | A5/1 | W7 |
| | 4.2.04 | Girl (Lena) | 7.9890 | 7.9892 | 7.9886 | | 5.1.12 | Clock | 7.9899 | 7.9901 | 7.9893 | | 5.1.13 | Resolution chart | 7.9870 | 7.9890 | 7.9869 | | 5.1.14 | Chemical plant | 7.9894 | 7.9899 | 7.9894 | | 5.2.08 | Couple | 7.9884 | 7.9897 | 7.9885 | | 5.2.09 | Aerial | 7.9897 | 7.9898 | 7.9897 | | 5.2.10 | Stream and bridge | 7.9894 | 7.9896 | 7.9893 | | 5.3.01 | Man | 7.9891 | 7.9899 | 7.9889 | | 5.3.02 | Airport | 7.9898 | 7.9898 | 7.9899 |
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