A Proposed Harmony Search Algorithm for Honeyword Generation

Table 1

The HSA parameters values.

No	Parameter	Values
1	Pitches size (population-size) n	80
2	Max-generation MG	30
3	Harmony size (number of pitches that made harmony) HS	5
4	Harmony memory size (equal to max-generation) HMS	30
5	Harmony memory considering rate HMCR	Random in range (0, 1)
6	Pitch adjusting rate PAR	Random in range (0, 1)
7	Number of generated adjacent pitches ap	4
8	Distance bandwidth (maximum pitch adjustment change) bw	0.3×(Token length)
9	Evaluation criteria Ec; Character similarity; Length similarity; PoS (part of speech) similarity; Meaningful word
10	Number of the generated digits tokens d	5
11	Number of digits that changed in generated token dl	Token length
12	Number of the generated special characters tokens s	5
13	Number of special characters that changed in generated token sl	Token length