def test_mpi(self):
data = [
(1, 3, (0x00, 0x01, 0x01)),
(511, 4, (0x00, 0x09, 0x01, 0xff)),
(65537, 5, bytearray(b'\x00\x11\x01\x00\x01')),
]
for expected, offset, invals in data:
self.assertEqual((expected, offset), get_mpi(invals, 0))
def test_mpi(self):
data = [
(1, 3, (0x00, 0x01, 0x01)),
(511, 4, (0x00, 0x09, 0x01, 0xff)),
(65537, 5, bytearray(b'\x00\x11\x01\x00\x01')),
]
for expected, offset, invals in data:
self.assertEqual((expected, offset), get_mpi(invals, 0))
def _patched_pks(self, offset):
try:
return orig_pks(self, offset)
except:
if self.raw_pub_algorithm not in (18, 22):
raise
self.pub_algorithm_type = "ecc"
self.exponent_x, offset = get_mpi(self.data, offset)
return offset
def _patched_pkm(self, offset):
try:
return orig_pkm(self, offset)
except:
if self.raw_pub_algorithm not in (18, 22):
raise
self.pub_algorithm_type = "ecc"
offset += self.data[offset] + 1 # Skip OID
self.key_value, offset = get_mpi(self.data, offset)
if self.raw_pub_algorithm == 18:
offset += self.data[offset] + 1 # Skip KDF
return offset
def parse_key_material(self, offset):
if self.raw_pub_algorithm in (1, 2, 3):
self.pub_algorithm_type = "rsa"
# n, e
self.modulus, offset = get_mpi(self.data, offset)
self.exponent, offset = get_mpi(self.data, offset)
elif self.raw_pub_algorithm == 17:
self.pub_algorithm_type = "dsa"
# p, q, g, y
self.prime, offset = get_mpi(self.data, offset)
self.group_order, offset = get_mpi(self.data, offset)
self.group_gen, offset = get_mpi(self.data, offset)
self.key_value, offset = get_mpi(self.data, offset)
elif self.raw_pub_algorithm in (16, 20):
self.pub_algorithm_type = "elg"
# p, g, y
self.prime, offset = get_mpi(self.data, offset)
self.group_gen, offset = get_mpi(self.data, offset)
self.key_value, offset = get_mpi(self.data, offset)
elif self.raw_pub_algorithm in (18, 19):
oid_len = self.data[offset]
offset += 1
self.raw_curve_oid = self.data[offset:offset + oid_len]
#self.curve_oid =
offset += oid_len
self.curve_size, (self.curve_x, self.curve_y), offset = \
get_M(self.data, offset)
# TODO(dlg): support the additional parameters for ECDH keys
elif 100 <= self.raw_pub_algorithm <= 110:
# Private/Experimental algorithms, just move on
pass
else:
raise PgpdumpException("Unsupported public key algorithm {}"
.format(self.raw_pub_algorithm))
return offset
def getrsaparams(key):
if key[0]!=0x95:
print "first param must be a secret key"
sys.exit(1)
offset=9 # start of key material
n, offset = utils.get_mpi(key, offset)
n=long(n)
#print 'n', offset, "%x" % n
e, offset = utils.get_mpi(key, offset)
e=long(e)
#print 'e', offset, "%x" % e
d, offset = utils.get_mpi(key, offset+1)
#print 'd', offset, "%x" % d
p, offset = utils.get_mpi(key, offset)
#print 'p', offset, "%x" % p
q, offset = utils.get_mpi(key, offset)
#print 'q', offset, "%x" % q
u, offset = utils.get_mpi(key, offset)
#print 'u', offset, "%x" % u
return RSA.construct(([n, e, d, p, q, u]))
def parse_private_key_material(self, offset):
if self.raw_pub_algorithm in (1, 2, 3):
self.pub_algorithm_type = "rsa"
# d, p, q, u
self.exponent_d, offset = get_mpi(self.data, offset)
self.prime_p, offset = get_mpi(self.data, offset)
self.prime_q, offset = get_mpi(self.data, offset)
self.multiplicative_inverse, offset = get_mpi(self.data, offset)
elif self.raw_pub_algorithm == 17:
self.pub_algorithm_type = "dsa"
# x
self.exponent_x, offset = get_mpi(self.data, offset)
elif self.raw_pub_algorithm in (16, 20):
self.pub_algorithm_type = "elg"
# x
self.exponent_x, offset = get_mpi(self.data, offset)
elif 100 <= self.raw_pub_algorithm <= 110:
# Private/Experimental algorithms, just move on
pass
else:
raise PgpdumpException("Unsupported public key algorithm {}"
.format(self.raw_pub_algorithm))
return offset
