Efficient Compression and Encryption for Digital Data Transmission

Table 6

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

Encryption method	Test set size	Encrypt. Size	Encrypt. +; Huffman	Encrypt. + AC	Encrypt. + LZW	Encrypt. +; RLE
RC4	3229989	3229989	3235861; (+5872 b.)	6376898; (+3146909 b.)	4587226; (+1357237 b.)	3242600; (+12611 b.)
DES	3229989	3230064	3235939; (+5950 b.)	6370696; (+3140707 b.)	4587115; (+1357126 b.)	3242550; (+12561 b.)
3DES	3229989	3230064	3235932; (+5943 b.)	6373622; (+3143633 b.)	4588580; (+1358591 b.)	3242570; (+12581 b.)
AES	3229989	3230128	3235985; (+5996 b.)	6370180; (+3140191 b.)	4586952; (+1356963 b.)	3242619; (+12630 b.)