Foo.bar hash it out

hashitout.py

#!/usr/bin/env python
def memoize(f):
    memo = {}
    def helper(*args):
        x = str(args)
        if x not in memo:
            memo[x] = f(*args)
        return memo[x]
    return helper

digest = lambda i: [0, 129, 3, 129, 7, 129, 3, 129, 15, 129, 3, 129, 7, 129, 3, 129][i]
selInt = memoize(lambda x, y: \
    int(x) if int(x) == x else y())
message = memoize(lambda i, c: \
    selInt(
        (256.0*c + (digest(i) ^ message(i-1, 0))) / 129.0,
        lambda: message(i, c+1)
    ) if i >= 0 else 0)

print [digest(x) for x in range(16)]
print [message(x, 0) for x in range(16)]