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
|
#!/usr/bin/env python
# Copyright (c) 2014, NORDUnet A/S.
# See LICENSE for licensing information.
import argparse
import urllib2
import urllib
import json
import base64
import sys
import yaml
from certtools import *
parser = argparse.ArgumentParser(description='')
parser.add_argument('--config', help="System configuration", required=True)
parser.add_argument('--localconfig', help="Local configuration", required=True)
args = parser.parse_args()
config = yaml.load(open(args.config))
localconfig = yaml.load(open(args.localconfig))
paths = localconfig["paths"]
db_path = paths["db"]
create_ssl_context(cafile=paths["https_cacertfile"])
baseurl = config["baseurl"]
sth = get_sth(baseurl)
def verifyleafhash(leaf_hash):
try:
proof = get_proof_by_hash(baseurl, leaf_hash, sth["tree_size"])
except SystemExit:
return False
leaf_index = proof["leaf_index"]
inclusion_proof = [base64.b64decode(e) for e in proof["audit_path"]]
calc_root_hash = verify_inclusion_proof(inclusion_proof, leaf_index, sth["tree_size"], leaf_hash)
root_hash = base64.b64decode(sth["sha256_root_hash"])
if root_hash != calc_root_hash:
print "sth calculation incorrect:"
print base64.b16encode(root_hash)
print base64.b16encode(calc_root_hash)
sys.exit(1)
return True
starttime = datetime.datetime.now()
lastverified = (-1, None)
try:
for i, line in enumerate(open(db_path + "newentries")):
leaf_hash = base64.b16decode(line.strip(), casefold=True)
result = verifyleafhash(leaf_hash)
if not result:
break
lastverified = {"index": i, "hash": base64.b16encode(leaf_hash).lower()}
if lastverified["index"] >= 0:
write_file(db_path + "lastverifiednewentry", lastverified)
print "lastverified", lastverified
except KeyboardInterrupt:
pass
|
