m-pass-hash.py

import struct
import binascii
import scrypt
N = 16384;
r = 8;
p = 1;

f = open('gatekeeper.pattern.key', 'rb')
blob = f.read()

s = struct.Struct('<'+'17s 8s 32s')
(meta, salt, signature) = s.unpack_from(blob)
password = binascii.unhexlify('00010204060708');
to_hash = meta
to_hash += password
hash = scrypt.hash(to_hash, salt, N, r, p)

print 'signature  %s' % signature.encode('hex')
print 'Hash:      %s' % hash[0:32].encode('hex')
print 'Equal:     %s' % (hash[0:32] == signature)