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

Table 7

Histogram analysis for the HLL threshold proxy signature scheme.

Number	Substring	Frequency (in %)	Frequency
1	N	11.0343	654
2	I	9.1277	541
3	T	8.824	523
4	E	8.6216	511
5	S	7.4405	441
6	R	7.1368	423
7	A	5.0785	301
8	O	4.6567	276
9	C	4.1842	248
10	D	3.6612	217
11	U	3.5937	213
12	F	3.2732	194
13	P	3.1213	185
14	G	3.0707	182
15	L	3.0201	179
16	H	2.8682	170
17	Y	2.6489	157
18	M	2.4296	144
19	X	1.4341	85
20	V	1.0798	64
21	W	0.9954	59
22	J	0.8267	49
23	B	0.7761	46
24	K	0.6917	41
25	Q	0.3374	20
26	Z	0.0675	4