Efficient Compression and Encryption for Digital Data Transmission

Table 10

Cost of encryption for two-dimensional data (compression + encryption).

Compression method	Test set size	Compr. Size	Compr. + DES	Compr. + 3DES	Compr. + AES	Compr. + RC4
JPEG	8708068	465246	465280; (+0,0004%)	465280; (+0,0004%)	465312; (+0,0008%)	465246; (+0%)
Lossless JPEG	8708068	5655395	5655424; (+0,0003%)	5655424; (+0,0003%)	5655456; (+0,0007%)	5655395; (+0%)
JPEG2000; (lossless mode)	8708068	3226204	3226232; (+0,0003%)	3226232; (+0,0003%)	3226240; (+0,0004%)	3226204; (+0%)