Cryptanalysis and Performance Evaluation of Enhanced Threshold Proxy Signature Scheme Based on RSA for Known Signers

Table 11

Histogram analysis for the enhanced threshold proxy signature schemes.

Number	Substring	Frequency (in %)	Frequency
1	N	11.5549	891
2	S	8.7278	673
3	E	8.5981	663
4	T	8.5722	661
5	I	8.3258	642
6	R	6.6399	512
7	O	5.4597	421
8	A	4.539	350
9	C	4.3963	339
10	U	3.696	285
11	F	3.4626	267
12	P	3.3329	257
13	G	3.307	255
14	L	3.1384	242
15	H	3.0865	238
16	D	2.5937	200
17	M	2.3603	182
18	Y	1.8934	146
19	X	1.634	126
20	V	1.2061	93
21	J	0.83	64
22	W	0.817	63
23	B	0.7522	58
24	K	0.7133	55
25	Q	0.3112	24
26	Z	0.0519	4