Tools for breaking a vigenere cipher. Read more about them in asgn 1 and asgn 2
They come in very handy for solving OverTheWire Krypton challenges
More resources:
$ python vig.py [ -v ] [ -d ] key [ infile [ outfile ] ]
$ python ftable.py [ -v ] [ -s num ] [ -p num ] [ infile [ outfile ] ]
$ python ic.py N l [ l2 ... ]
$ python kasisky.py [ -v ] [ -m length ] [ infile [ outfile ] ]$ python ftable.py -s 1 -p 6 krypton4.in
Total chars: 242
A: 0 ( 0.00%)
B: 1 ( 0.41%) *
C: 7 ( 2.89%) ***
D: 0 ( 0.00%)
E: 12 ( 4.96%) *****
F: 19 ( 7.85%) ********
G: 2 ( 0.83%) *
H: 0 ( 0.00%)
I: 12 ( 4.96%) *****
J: 14 ( 5.79%) ******
K: 32 ( 13.22%) **************
L: 2 ( 0.83%) *
M: 3 ( 1.24%) **
N: 8 ( 3.31%) ****
O: 0 ( 0.00%)
P: 7 ( 2.89%) ***
Q: 0 ( 0.00%)
R: 16 ( 6.61%) *******
S: 2 ( 0.83%) *
T: 6 ( 2.48%) ***
U: 16 ( 6.61%) *******
V: 35 ( 14.46%) ***************
W: 7 ( 2.89%) ***
X: 4 ( 1.65%) **
Y: 19 ( 7.85%) ********
Z: 18 ( 7.44%) ********
Index of Coincidence: 0.0743
$ python kasiski.py krypton4.in
Length Count Word Factor Location (distance)
====== ===== ========== ====== ===================
3 8 YYI 6 0 312 (312) 432 (120) 444 (12) 504 (60) 558 (54) 954 (396) 1020 (66)
3 4 ICS 2 2 608 (606) 644 (36) 1060 (416)
3 11 XRI 6 14 44 (30) 56 (12) 86 (30) 98 (12) 278 (180) 830 (552) 878 (48) 1292 (414) 1358 (66) 1388 (30)
3 3 RIE 6 15 99 (84) 1389 (1290)
3 3 FNJ 6 23 125 (102) 173 (48)
3 3 VHD 6 31 205 (174) 373 (168)
3 3 HDL 6 32 206 (174) 374 (168)
3 10 DLC 6 33 75 (42) 111 (36) 207 (96) 243 (36) 375 (132) 1179 (804) 1251 (72) 1263 (12) 1413 (150)
3 3 LYX 16 42 1274 (1232) 1338 (64)
3 4 IQY 2 46 560 (514) 592 (32) 1306 (714)
3 3 QYI 1 47 480 (433) 593 (113)
3 4 UXR 24 85 829 (744) 877 (48) 1357 (480)
3 4 RIP 6 87 279 (192) 879 (600) 1293 (414)
3 3 LCW 6 94 364 (270) 1180 (816)
3 3 SFJ 2 108 970 (862) 1188 (218)
3 3 LCL 24 112 208 (96) 376 (168)
3 3 JNM 1 119 456 (337) 882 (426)
3 3 NXF 6 123 1143 (1020) 1425 (282)
...
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