xor_encryption_test.py

from random import choice

# s:string, k:key, c:shift characters
e = lambda s,k,c:"".join([c[(c.index(i[1])+ord(k[i[0]]))%len(c)]for i in enumerate(s)])
d = lambda s,k,c:"".join([c[(c.index(i[1])-ord(k[i[0]]))%len(c)]for i in enumerate(s)])

s = "qwertyiop"
#c = list(map(chr,range(65,123))) # [A-Za-z] (chars for shifting)
c = list(map(chr,range(min(map(ord,s)),max(map(ord,s))+1))) # min-max char ord
#k = s[::-1] # reverse the string
k = "".join([choice(c)for i in s])


es = e(s, k, c)
ds = d(es,k, c)

print("wheel: %s" % "".join(c))
print("%s + %s -> %s" % (s,k,es))
print("%s - %s -> %s" % (es,k,ds))