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
|
#!/usr/bin/env python
import sys
import getopt
import base64
from ZSI.client import Binding
import libecryptfs
__doc__ = '''
Usage: escrow-passphrase.py <-v|--verbose> <[salt]> [passphrase]
'''
def main():
verbosity = 0
default_salt_hex = "0011223344556677"
try:
opts, args = getopt.getopt(sys.argv[1:], "hv", ["help", "verbose"])
except getopt.error, msg:
print msg
print "for help use --help"
sys.exit(2)
for o, a in opts:
if o in ("-h", "--help"):
print __doc__
sys.exit(0)
elif o in ("-v", "--verbose"):
verbosity = 1
salt_bytes = []
if len(args) < 1 or len(args) > 2:
print "invalid number of arguments"
print "for help use --help"
sys.exit(2)
if len(args) == 1:
salt_hex = default_salt_hex
passphrase_charstr = args[0]
if len(args) == 2:
salt_hex = args[0]
passphrase_charstr = args[1]
if len(salt_hex) != 16:
print "Salt value provided is [%s], which is [%d] characters long. The salt must be comprised of [%d] hexidecimal characters." % (salt_hex, len(salt_hex), 16)
for i in range(0, 16, 2):
salt_bytes.append(chr(int(salt_hex[i:i+2], 16)))
salt_charstr = ""
for sb in salt_bytes:
salt_charstr = "%s%c" % (salt_charstr, sb)
blob = libecryptfs.ecryptfs_passphrase_blob(salt_charstr, \
passphrase_charstr)
sig = libecryptfs.ecryptfs_passphrase_sig_from_blob(blob)
b = Binding(url="http://127.0.0.1:8080")
b64sig = base64.b64encode(sig)
b64blob = base64.b64encode(blob)
b.store_key_blob([b64sig, b64blob])
if __name__ == "__main__":
main()
|