evil.py

#!/usr/bin/python

key = 'kw6PZq3Zd;ekR[_1'
ret = ''

for i, ch in enumerate(key):
    ecx = i + 1
    edx = 0x66666667
    eax = ecx
    eax = edx * eax
    eax = eax & 0xffffffff
    edx = eax >> 32
    edx >>= 3
    eax = ecx
    eax >>= 0x1f
    edx -= eax
    eax = edx
    eax <<= 2
    eax += edx
    eax <<= 2
    edx = ecx
    edx -= eax
    eax = edx
    print eax
    eax ^= ord(ch)
    ret += chr(eax)
print ret