def basicautoguessing(cts,key,milen):
lcts = len(cts)
# do some basic automating guesses
rev = range(milen)
for i in range(milen):
rev[i] = list()
for i in range(lcts):
ct = cts[i]
for j in range(milen):
rev[j].append(ct[j])
for i in range(milen):
out = c3.fcxor(rev[i])
if out != None:
key[i] = out[0]
# finding the first letter (based on the most common ones):
# from http://www.cryptograms.org/letter-frequencies.php
for c in "TAISOCMFPWtaisocmfpw ":
key[0] = ord(cts[0][0])^ord(c)
revt = [ chr(ord(c1)^key[0]) for c1 in rev[0]]
good = True
for i in range(milen):
if not revt[i] in string.letters+" '":
good = False
break
if good == True:
break
return key
#!/usr/bin/env python
import c3
import urllib
try:
data = open("c4.txt").read()
except:
data = urllib.urlopen("https://gist.github.com/tqbf/3132713/raw/40da378d42026a0731ee1cd0b2bd50f66aabac5b/gistfile1.txt").read()
open("c4.txt","w").write(data)
for l in data.split("\n"):
txt = c3.fcxor(l.rstrip().decode('hex'))
if txt != None:
print txt
return blks
if __name__ == "__main__":
try:
data = open("c6.txt").read()
except:
data = urllib.urlopen("https://gist.github.com/tqbf/3132752/raw/cecdb818e3ee4f5dda6f0847bfd90a83edb87e73/gistfile1.txt").read()
open("c6.txt","w").write(data)
ct = base64.b64decode(data)
key_len = dict()
for kl in range(2,40):
key_len[kl] = findkeylen(ct,kl)
for kl in sorted(key_len , key = key_len.get):
sxor = reorderblk(ct,kl)
key = ""
for i in range(kl):
txt = c3.fcxor("".join(sxor[i]))
if txt != None:
key += chr(txt[0])
else:
key += chr(0)
if not '\x00' in key:
print str((kl,key))
break
