Research Article
Efficient Compression and Encryption for Digital Data Transmission
Table 11
Cost of encryption for two-dimensional data (encryption + compression).
| Encryption method | Test set size | Encrypt. Size | Encrypt. + JPEG | Encrypt. + Lossless JPEG | Encrypt. + JPEG2000 (lossless mode) |
| RC4 | 8708068 | 8708068 | 1894281 (−6813787 b.) | 12031804 (+3323736 b.) | 9532748 (+824680 b.) | DES | 8708068 | 8708088 | 1983720 (−6724348 b.) | 12036327 (+3328259 b.) | 9529660 (+821592 b.) | 3DES | 8708068 | 8708088 | 1983558 (−6724510 b.) | 12033974 (+3325906 b.) | 9529591 (+821523 b.) | AES | 8708068 | 8708096 | 1978988 (−6729080 b.) | 12034622 (+3326554 b.) | 9528145 (+820077 b.) |
|
|