1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
#!/usr/bin/env python
# Copyright (c) 2014 Kungliga Tekniska Högskolan
# (KTH Royal Institute of Technology, Stockholm, Sweden).
# See LICENSE for licensing information.
import urllib2
import urllib
import json
import base64
import sys
import struct
import hashlib
import itertools
from certtools import *
baseurl = sys.argv[1]
certfile = sys.argv[2]
lookup_in_log = True
certs = get_certs_from_file(certfile)
result = add_chain(baseurl, {"chain":map(base64.b64encode, certs)})
try:
check_sct_signature(baseurl, certs[0], result)
except AssertionError, e:
print "ERROR:", e
sys.exit(1)
except ecdsa.keys.BadSignatureError, e:
print "ERROR: bad signature"
sys.exit(1)
print "signature check succeeded"
if lookup_in_log:
merkle_tree_leaf = pack_mtl(result["timestamp"], certs[0])
leaf_hash = get_leaf_hash(merkle_tree_leaf)
sth = get_sth(baseurl)
proof = get_proof_by_hash(baseurl, leaf_hash, sth["tree_size"])
leaf_index = proof["leaf_index"]
entries = get_entries(baseurl, leaf_index, leaf_index)
fetched_entry = entries["entries"][0]
print "does the leaf_input of the fetched entry match what we calculated:", \
base64.decodestring(fetched_entry["leaf_input"]) == merkle_tree_leaf
extra_data = fetched_entry["extra_data"]
certchain = decode_certificate_chain(base64.decodestring(extra_data))
submittedcertchain = certs[1:]
for (submittedcert, fetchedcert, i) in zip(submittedcertchain,
certchain, itertools.count(1)):
print "cert", i, "in chain is the same:", submittedcert == fetchedcert
if len(certchain) == len(submittedcertchain) + 1:
last_issuer = get_cert_info(certs[-1])["issuer"]
root_subject = get_cert_info(certchain[-1])["subject"]
print "issuer of last cert in submitted chain and " \
"subject of last cert in fetched chain is the same:", \
last_issuer == root_subject
elif len(certchain) == len(submittedcertchain):
print "cert chains are the same length"
else:
print "ERROR: fetched cert chain has length", len(certchain),
print "and submitted chain has length", len(submittedcertchain)
|
