An Efficient Video Encryption Algorithm Based on the Pseudorandom Number Generator of Zipf Distribution

Table 2

PSNR, SSIM, and EDR for different video sequences.

Video sequence	QP	No encryption			PSVE
		PSNR	SSIM	EDR	PSNR	SSIM	EDR
Mobile	12	49.1033	0.9975	0.0100	8.6521	0.1310	0.9141
	24	38.9049	0.9853	0.0371	8.7431	0.0705	0.9036
	36	28.5705	0.9187	0.1437	9.3351	0.0884	0.9182
Foreman	12	48.9449	0.9940	0.0205	8.5377	0.2155	0.9456
	24	39.9376	0.9602	0.0703	8.7782	0.2291	0.9506
	36	32.4865	0.8743	0.2511	8.7335	0.2237	0.9375
RaceHorses	12	48.8825	0.9960	0.0162	8.1842	0.1630	0.9316
	24	39.3717	0.9762	0.0524	11.2873	0.2194	0.9267
	36	30.1591	0.8524	0.1991	10.5863	0.1429	0.9184
BlowingBubbles	12	48.9663	0.9963	0.0218	10.6231	0.1433	0.9159
	24	38.3567	0.9612	0.0748	12.0370	0.2310	0.9116
	36	29.7703	0.8199	0.2769	8.0457	0.0754	0.9419
PartyScene	12	48.9596	0.9975	0.0183	8.6571	0.1264	0.9089
	24	38.1691	0.9725	0.0582	7.4854	0.1123	0.9140
	36	28.5790	0.8466	0.2291	7.6365	0.1244	0.9293
BasketballDrillText	12	48.9237	0.9941	0.0256	10.4350	0.2240	0.9288
	24	39.5332	0.9529	0.0849	9.2593	0.2029	0.9404
	36	32.3320	0.8469	0.2655	7.4385	0.2996	0.9349
FourPeople	12	48.6720	0.9918	0.0237	8.8782	0.1139	0.9496
	24	41.5336	0.9679	0.0784	7.7886	0.2376	0.9394
	36	34.8005	0.9265	0.2743	7.9617	0.2117	0.9303
Johnny	12	48.5209	0.9898	0.0468	9.6130	0.3182	0.9490
	24	41.8492	0.9622	0.1596	7.3256	0.3401	0.9533
	36	36.4757	0.9250	0.4170	7.7162	0.3326	0.9522
ChinaSpeed	12	51.9060	0.9962	0.0149	8.6246	0.2275	0.9667
	24	44.3273	0.9872	0.0481	7.1939	0.1401	0.9403
	36	34.9800	0.9415	0.1566	8.6434	0.1574	0.9341
BQTerrace	12	49.3648	0.9961	0.0206	7.4070	0.2712	0.9482
	24	39.6137	0.9624	0.0626	7.1680	0.2114	0.9234
	36	31.0648	0.8708	0.2183	7.6153	0.2447	0.9414
Traffic	12	48.8009	0.9932	0.0246	11.1436	0.3912	0.9288
	24	40.8377	0.9689	0.0856	10.5217	0.3402	0.9265
	36	33.6454	0.8953	0.2969	8.1236	0.3551	0.9204
PeopleOnStreet	12	49.0432	0.9943	0.0187	9.0149	0.3456	0.9431
	24	40.6894	0.9692	0.0655	8.2083	0.2845	0.9440
	36	33.3617	0.8896	0.2390	8.7074	0.3534	0.9505
Average	—	40.5399	0.9510	0.1141	8.7808	0.2194	0.9337