A Proposed Harmony Search Algorithm for Honeyword Generation

Table 3

A comparison in most pressing problems of honeyword systems.

No.	Methods	Cond. flatness problem	Weak DoS resist. problem	Storage overhead problem	Corre. problem	Cons. and frequent numbers problem	Special date problem	User info. security problem
1	Proposed HSA	No	No	No	No	No	No	No
2	Chaffing-by-tail-tweaking [15]	Yes	Yes	No	Yes	Yes	Yes	No
3	Chaffing-by-tweaking-digits [15]	Yes	Yes	No	Yes	Yes	Yes	No
4	Simple model [15]	Yes	No	No	Yes	No	No	No
5	Modeling syntax [15]	Yes	No	No	Yes	Yes	Yes	No
6	Chaffing with “tough nuts” [15]	N/A	No	Yes	No	N/A	N/A	No
7	Take-a-tail [15]	No	No	No	No	No	No	No
8	Random pick [15]	Yes	No	No	Yes	No	No	No
9	Hybrid generation methods [15]	Yes	No	No	Yes	Yes	Yes	No
10	Storage-index [16]	Yes	Yes	Yes	Yes	No	No	No
11	PDP [17]	Yes	No	Yes	No	Yes	No	No
12	Evolving-password model [18]	Yes	No	No	Yes	Yes	Yes	No
13	User-profile model [18]	Yes	Yes	Yes	Yes	Yes	No	Yes
14	Append-secret model [18]	Yes	No	No	No	Yes	No	No
15	User information method [19]	Yes	Yes	Yes	Yes	Yes	No	Yes
16	Dictionary attack method [19]	Yes	Yes	No	Yes	No	No	No
17	Generic password list method [19]	Yes	No	No	Yes	No	No	No
18	Shuffling characters method [19]	Yes	Yes	No	Yes	Yes	Yes	No