def provide(cls, enc, jwk, jwe, *args, **kwargs):
kek = jwk.key.shared_key[:cls._enc._KEY_LEN]
dmy, kek_iv = cls._enc.create_key_iv() #: iv
cek, iv = enc.encryptor.create_key_iv()
cek_ci, tag = cls._enc.encrypt(kek, cek, kek_iv, "")
jwe.iv = _BE(kek_iv)
jwe.tag = _BE(tag)
return (cek, iv, cek_ci, kek)
def serialize_json(self, **kwargs):
assert self.iv
assert self.cek
#: Content encryption
(self.ciphertext,
self.tag) = self.encrypt()
self.ciphertext = _BE(self.ciphertext)
self.tag = _BE(self.tag)
return self.to_json(**kwargs)
def serialize_compact(self, index=0):
if len(self.recipients) < 1:
return None
header = self.header(index) # all header togher
header_b64u = header.to_b64u() # auth_data = _BE(header)
#: encrypt with same CEK+IV, but with new auth_data
ciphertext, tag = self.encrypt(header, header_b64u)
#: Tokenize
return ".".join([
header_b64u,
self.recipients[0].encrypted_key or '',
self.iv,
_BE(ciphertext),
_BE(tag)])
def test_compact(self):
''' nose2 jose.tests.test_jws.TestJwsMessage.test_compact'''
jku="https://me.com/jwkset"
signer = TestEntity(
identifier="https://me.com",
jku=jku,
)
for alg in SigDict.values():
alg = SigEnum.create(alg)
plaintext = "This is a message to be signed by %s" % alg.value
msg = Message(
payload=_BE(plaintext), sender=signer)
msg.add_signature(
sender=signer,
protected=Jws(alg=alg, kid=None, jku=jku),
header=Jws(typ="text"),
)
token = msg.serialize_compact()
msg2 = Message.from_token(token, sender=signer)
print "TOKEN=", token
self.assertTrue(msg2.verify())
def provide(cls, enc, jwk, jwe, cek=None, iv=None, *args, **kwargs):
if cek:
#: TODO: Check iv is valid or not
pass
else:
cek, iv = enc.encryptor.create_key_iv()
jwe.p2s = jwe.p2s or _BE(
Random.get_random_bytes(cls._wrapper._KEY_LEN))
jwe.p2c = jwe.p2c or 1024
kek = cls.derive(jwk, jwe.p2s, jwe.p2c, *args, **kwargs)
cek_ci = cls.encrypt(kek, cek)
return cek, iv, cek_ci, kek
def test_algs(self):
''' nose2 jose.tests.test_jws.TestJwsMessage.test_algs'''
for alg in SigDict.values():
alg = SigEnum.create(alg)
signer = "https://%s.com" % alg.name
jku = signer + "/jwkset"
jwk = Jwk.generate(alg.key_type)
plaintext = "This is a message to be signed by %s" % alg.value
signature = alg.signer.sign(jwk, plaintext)
self.assertTrue(alg.signer.verify(jwk, plaintext, signature))
print alg.value, jwk.kty.value, len(signature), _BE(signature)
def provide_key(self, jwk, cek=None, iv=None, jwe=None):
jwe = Jwe.merge(self.header, jwe)
assert jwk and isinstance(jwk, Jwk), \
"Recipient's Jwk must be specified."
assert jwe
assert jwe.enc
assert jwe.alg
if jwk.kid and not self.header.kid:
self.header.kid = jwk.kid
(self.cek, self.iv, self.encrypted_key, kek
) = jwe.alg.encryptor.provide(jwe.enc, jwk, self.header, cek, iv)
self.encrypted_key = _BE(self.encrypted_key)
return self.cek, self.iv
def add_recipient(self, recipient):
''' before call, recipient has to be provided with
messsage's CEK and IV
'''
header = self.header(jwe=recipient.header)
key = header.load_key(recipient.recipient)
assert key is not None, "Recipient's key MUST be loaded."
if len(self.recipients) < 1:
#: Provide CEK & IV
(self.cek, self.iv) = recipient.provide_key(
key, jwe=header)
self.iv = _BE(self.iv)
else:
# use existent cek and iv
assert self.cek
assert self.iv
recipient.provide_key(key, self.cek, self.iv, jwe=header)
self.recipients.append(recipient)
def run(self, args):
super(MessageCommand, self).run(args)
args.jku = args.jku or args.sender + "/jwkset"
self.provide_keys(args.sender, args.jku)
message = jws.Message(
sender=args.sender, payload=_BE(args.payload))
for alg in sigs.SigDict.values():
protected = jws.Jws(alg=sigs.SigEnum.create(alg))
header = jws.Jws(jku=args.jku)
message.add_signature(protected, header)
jmsg = message.to_json(indent=2)
print jmsg
msg2 = jws.Message.from_json(jmsg)
msg2 = jws.Message.from_token(jmsg, sender=args.sender)
print msg2.verify()
def run(self, args):
super(MultiCommand, self).run(args)
message = jwe.Message(
protected=jwe.Jwe(enc=args.enc, zip="DEF",),
unprotected=jwe.Jwe(typ="text"),
plaintext=_BE(args.payload)
)
for alg in encs.KeyEncDict.values():
alg = encs.KeyEncEnum.create(alg)
if alg.single:
continue
receiver = 'https://%s.com/' % alg.name.lower()
jku = receiver + '/jwkset'
jwk.Jwk.get_or_create_from(
receiver, jku, alg.key_type, kid=None,)
recipient = jwe.Recipient(
header=jwe.Jwe(alg=alg, jku=jku,)
)
message.add_recipient(recipient, receiver)
print message.serialize_json(indent=2)
def run(self, args):
super(SampleCommand, self).run(args)
#Jws
self.result.jws = jws.Jws(alg=sigs.SigEnum.create(args.alg))
print self.result.to_json(indent=2)
# any parms
for param in args.params:
self.result.jws.set_value(*param.split('='))
# Initia Value
if self.result.jws.alg.key_type == keys.KeyTypeEnum.RSA:
self.result.inits = dict(length=args.bits)
elif self.result.jws.alg.key_type == keys.KeyTypeEnum.EC:
self.result.inits = dict(
length=keys.CurveEnum.create(args.curve).bits)
elif self.result.jws.alg.key_type == keys.KeyTypeEnum.OCT:
self.result.inits = dict(length=args.length)
#key
if args.jwk:
self.result.jwk = jwk.Jwk.from_file(args.jwk)
else:
self.result.jwk = jwk.Jwk.generate(
kty=self.result.jws.alg.key_type, **self.result.inits)
assert self.result.jwk.kty == self.result.jws.alg.key_type
self.result.signature = _BE(
self.result.jws.sign(self.result.plaintext, self.result.jwk))
self.result.verified = self.result.jws.verify(
self.result.plaintext, _BD(self.result.signature), self.result.jwk)
print self.result.to_json(indent=2)
def private_jwk(self):
jwk = Jwk(
kty="oct",
k=_BE(self.material),
)
return jwk
def to_jwk(self, jwk):
jwk.k = _BE(self.material)
def state_from_nonce(cls, nonce):
return _BE(hashlib.sha256(nonce + settings.SECRET_KEY).digest())
def test_rs256(self):
''' nose2 jose.tests.test_jws.TestJws.test_rs256'''
''' JWS A.2
'''
octes = [123, 34, 97, 108, 103, 34, 58,
34, 82, 83, 50, 53, 54, 34, 125]
jws_str = ''.join(chr(i) for i in octes)
self.assertEqual(jws_str, '{"alg":"RS256"}')
jws_new = Jws.from_json(jws_str)
self.assertEqual(jws_new.alg, SigEnum.RS256)
b64_header = base64.base64url_encode(jws_str)
self.assertEqual(b64_header, 'eyJhbGciOiJSUzI1NiJ9')
b64_payload = ''.join([
'eyJpc3MiOiJqb2UiLA0KICJleHAiOj',
'EzMDA4MTkzODAsDQogImh0dHA6Ly9leGFt',
'cGxlLmNvbS9pc19yb290Ijp0cnVlfQ'])
payload = base64.base64url_decode(b64_payload)
jwt_new = Jwt.from_json(payload)
self.assertEqual(jwt_new.iss, "joe")
self.assertEqual(jwt_new.exp, 1300819380)
self.assertEqual(jwt_new['http://example.com/is_root'], True)
s_input = [
101, 121, 74, 104, 98, 71, 99,
105, 79, 105, 74, 83, 85, 122, 73,
49, 78, 105, 74, 57, 46, 101, 121,
74, 112, 99, 51, 77, 105, 79, 105,
74, 113, 98, 50, 85, 105, 76, 65,
48, 75, 73, 67, 74, 108, 101, 72,
65, 105, 79, 106, 69, 122, 77, 68,
65, 52, 77, 84, 107, 122, 79, 68,
65, 115, 68, 81, 111, 103, 73, 109,
104, 48, 100, 72, 65, 54, 76,
121, 57, 108, 101, 71, 70, 116, 99,
71, 120, 108, 76, 109, 78, 118,
98, 83, 57, 112, 99, 49, 57, 121, 98,
50, 57, 48, 73, 106, 112, 48,
99, 110, 86, 108, 102, 81]
s_input_str = "".join(chr(i) for i in s_input)
self.assertEqual(
s_input_str, ".".join([b64_header, b64_payload]))
pri_json_dict = {
"kty": "RSA",
"n": "".join([
"ofgWCuLjybRlzo0tZWJjNiuSfb4p4fAkd_wWJcyQoTbji9k0l8W26mPddx",
"HmfHQp-Vaw-4qPCJrcS2mJPMEzP1Pt0Bm4d4QlL-yRT-SFd2lZS-pCgNMs",
"D1W_YpRPEwOWvG6b32690r2jZ47soMZo9wGzjb_7OMg0LOL-bSf63kpaSH",
"SXndS5z5rexMdbBYUsLA9e-KXBdQOS-UTo7WTBEMa2R2CapHg665xsmtdV",
"MTBQY4uDZlxvb3qCo5ZwKh9kG4LT6_I5IhlJH7aGhyxXFvUK-DWNmoudF8",
"NAco9_h9iaGNj8q2ethFkMLs91kzk2PAcDTW9gb54h4FRWyuXpoQ"]),
"e": "AQAB",
"d": "".join([
"Eq5xpGnNCivDflJsRQBXHx1hdR1k6Ulwe2JZD50LpXyWPEAeP88vLNO97I",
"jlA7_GQ5sLKMgvfTeXZx9SE-7YwVol2NXOoAJe46sui395IW_GO-pWJ1O0",
"BkTGoVEn2bKVRUCgu-GjBVaYLU6f3l9kJfFNS3E0QbVdxzubSu3Mkqzjkn",
"439X0M_V51gfpRLI9JYanrC4D4qAdGcopV_0ZHHzQlBjudU2QvXt4ehNYT",
"CBr6XCLQUShb1juUO1ZdiYoFaFQT5Tw8bGUl_x_jTj3ccPDVZFD9pIuhLh",
"BOneufuBiB4cS98l2SR_RQyGWSeWjnczT0QU91p1DhOVRuOopznQ"]),
}
jwk = Jwk(**pri_json_dict)
self.assertTrue(jwk.key.is_private)
signer = jws_new.alg.signer
from jose.jwa.rsa import RS256
self.assertEqual(signer, RS256)
sig_calc = signer.sign(jwk, s_input_str)
sig = [
112, 46, 33, 137, 67, 232, 143,
209, 30, 181, 216, 45, 191, 120, 69,
243, 65, 6, 174, 27, 129, 255, 247,
115, 17, 22, 173, 209, 113, 125,
131, 101, 109, 66, 10, 253, 60,
150, 238, 221, 115, 162, 102, 62, 81,
102, 104, 123, 0, 11, 135, 34, 110, 1, 135, 237, 16, 115, 249, 69,
229, 130, 173, 252, 239, 22, 216, 90, 121, 142, 232, 198, 109, 219,
61, 184, 151, 91, 23, 208, 148, 2, 190, 237, 213, 217, 217, 112, 7,
16, 141, 178, 129, 96, 213, 248, 4, 12, 167, 68, 87, 98, 184, 31,
190, 127, 249, 217, 46, 10, 231,
111, 36, 242, 91, 51, 187, 230, 244,
74, 230, 30, 177, 4, 10, 203, 32, 4, 77, 62, 249, 18, 142, 212, 1,
48, 121, 91, 212, 189, 59, 65, 238,
202, 208, 102, 171, 101, 25, 129,
253, 228, 141, 247, 127, 55, 45, 195, 139, 159, 175, 221, 59, 239,
177, 139, 93, 163, 204, 60, 46, 176, 47, 158, 58, 65, 214, 18, 202,
173, 21, 145, 18, 115, 160, 95, 35,
185, 232, 56, 250, 175, 132, 157,
105, 132, 41, 239, 90, 30, 136, 121, 130, 54, 195, 212, 14, 96, 69,
34, 165, 68, 200, 242, 122, 122, 45,
184, 6, 99, 209, 108, 247, 202,
234, 86, 222, 64, 92, 178, 33, 90, 69, 178, 194, 85, 102, 181, 90,
193, 167, 72, 160, 112, 223, 200,
163, 42, 70, 149, 67, 208, 25, 238, 251, 71]
self.assertEqual(sig, [ord(i) for i in sig_calc])
b64_sig = "".join([
'cC4hiUPoj9Eetdgtv3hF80EGrhuB__dzERat0XF9g2VtQgr9PJbu3XOiZj5RZmh7',
'AAuHIm4Bh-0Qc_lF5YKt_O8W2Fp5jujGbds9uJdbF9CUAr7t1dnZcAcQjbKBYNX4',
'BAynRFdiuB--f_nZLgrnbyTyWzO75vRK5h6xBArLIARNPvkSjtQBMHlb1L07Qe7K',
'0GarZRmB_eSN9383LcOLn6_dO--xi12jzDwusC-eOkHWEsqtFZESc6BfI7noOPqv',
'hJ1phCnvWh6IeYI2w9QOYEUipUTI8np6LbgGY9Fs98rqVt5AXLIhWkWywlVmtVrB',
'p0igcN_IoypGlUPQGe77Rw'])
self.assertEqual(b64_sig, base64.base64url_encode(sig_calc))
##########################
# implementation
jws_impl = Jws(alg='RS256')
msg = Message(payload=_BE(payload))
msg.signatures.append(Signature(_protected=jws_impl))
token = msg.serialize_compact(jwk=jwk)
items = token.split('.')
self.assertEqual(len(msg.signatures), 1)
self.assertEqual(msg.signatures[0]._protected.alg.value, 'RS256')
self.assertEqual(len(items), 3)
self.assertEqual(msg.signatures[0].protected, items[0])
self.assertEqual(msg.payload, items[1])
self.assertEqual(msg.signatures[0].signature, items[2])
#: restore token
msg2 = Message.from_token(token, sender=None, receiver=None)
self.assertEqual(len(msg2.signatures), 1)
self.assertEqual(msg2.payload, _BE(payload))
self.assertEqual(msg2.payload, msg.payload)
self.assertEqual(len(msg2.signatures), 1)
self.assertEqual(msg2.signatures[0]._protected.alg.value, 'RS256')
self.assertEqual(msg2.signatures[0].protected, items[0])
self.assertEqual(msg2.payload, items[1])
self.assertEqual(msg2.signatures[0].signature, items[2])
#: verify message
s = msg2.signatures[0]
self.assertTrue(s.verify(msg2.payload, jwk=jwk))
#: wrong key fails
new_jwk = Jwk.generate(KeyTypeEnum.RSA)
self.assertFalse(s.verify(msg2.payload, jwk=new_jwk))
#: Json Serialization
json_str = msg.serialize_json(jwk, indent=2)
msg3 = Message.from_token(json_str)
self.assertEqual(len(msg3.signatures), 1)
self.assertTrue(
msg3.signatures[0].verify(msg3.payload, jwk.public_jwk))
self.assertFalse(
msg3.signatures[0].verify(msg3.payload, new_jwk.public_jwk))
