forked from fedbiomed/fedbiomed
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathtest_joye_libert.py
375 lines (284 loc) · 12.3 KB
/
test_joye_libert.py
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
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
import unittest
from math import ceil, log2
from gmpy2 import mpz
from unittest.mock import patch
from fedbiomed.common.constants import VEParameters
from fedbiomed.common.secagg._jls import PublicParam, JoyeLibert, FDH, EncryptedNumber, UserKey, BaseKey, ServerKey
class TestFDH(unittest.TestCase):
def test_fdh_01_init(self):
"""Tests wrong argument types"""
with self.assertRaises(TypeError):
FDH(
bits_size=VEParameters.KEY_SIZE,
n_modulus="1234"
)
with self.assertRaises(TypeError):
FDH(
bits_size=VEParameters.KEY_SIZE,
n_modulus=12123
)
with self.assertRaises(TypeError):
FDH(
bits_size="not-int",
n_modulus=12123
)
pass
def test_fdh_01_H(self):
"""Tests H function"""
n = mpz(12345)
fdh = FDH(
bits_size=VEParameters.KEY_SIZE,
n_modulus=n
)
result_1 = fdh.H(10)
self.assertTrue(result_1 != 0)
self.assertIsInstance(result_1, mpz)
result_2 = fdh.H(10)
self.assertTrue(result_1 == result_2)
class TestPublicParam(unittest.TestCase):
def setUp(self) -> None:
self.n_1 = mpz(123456)
self.n_2 = mpz(123456789)
self.pp_1 = PublicParam(
n_modulus=self.n_1,
bits=VEParameters.KEY_SIZE // 2,
hashing_function=FDH(VEParameters.KEY_SIZE, self.n_1 * self.n_1).H
)
self.pp_2 = PublicParam(
n_modulus=self.n_2,
bits=VEParameters.KEY_SIZE // 2,
hashing_function=FDH(VEParameters.KEY_SIZE, self.n_2 * self.n_2).H
)
pass
def tearDown(self) -> None:
pass
def test_public_param_01_equality(self):
"""Tests equality of two PublicParam"""
self.assertFalse(self.pp_1 == self.pp_2)
self.assertTrue(self.pp_1 == self.pp_1)
def test_public_param_02_getters(self):
"""Tests properties"""
self.assertEqual(self.pp_1.bits, VEParameters.KEY_SIZE // 2)
self.assertEqual(self.pp_1.n_modulus, self.n_1)
self.assertEqual(self.pp_1.n_square, self.n_1 * self.n_1)
def test_public_param_03_hashing_function(self):
"""Tests hashing function defined FDH"""
result = self.pp_1.hashing_function(10)
self.assertTrue(result != 0)
self.assertIsInstance(result, mpz)
class TestEncryptedNumber(unittest.TestCase):
def setUp(self) -> None:
n = mpz(123457)
self.public_param = PublicParam(
n_modulus=n,
bits=VEParameters.KEY_SIZE // 2,
hashing_function=FDH(VEParameters.KEY_SIZE, n * n).H
)
self.en = EncryptedNumber(param=self.public_param,
ciphertext=10)
pass
def tearDown(self) -> None:
pass
def test_encrypted_num_01__sum_operations(self):
"""Tests normal sum operation"""
sum_ = self.en + self.en
# Sum should be 100
self.assertEqual(sum_.ciphertext, 100)
# Sum should be 10000
sum_ = self.en + self.en + self.en + self.en
self.assertEqual(sum_.ciphertext, 10000)
def test_encrypted_num_02_tuple_sum(self):
"""Tests list sum"""
ens_1 = [self.en, self.en, self.en]
ens_2 = [self.en, self.en, self.en]
result = [sum(ep) for ep in zip(*[ens_1, ens_2])]
self.assertEqual(result[0].ciphertext, 100)
self.assertEqual(result[1].ciphertext, 100)
self.assertEqual(result[2].ciphertext, 100)
def test_encrypted_num_03_different_public_param(self):
"""Tests error raises if PublicParams are different"""
n = mpz(987654123)
p_other = PublicParam(
n_modulus=n,
bits=VEParameters.KEY_SIZE // 2,
hashing_function=FDH(VEParameters.KEY_SIZE, n * n).H
)
en = EncryptedNumber(param=p_other,
ciphertext=10)
with self.assertRaises(ValueError):
self.en + en
def test_encrypted_num_03_sum_different_types(self):
"""Test if raises error when EN summed with int"""
with self.assertRaises(TypeError):
self.en.__repr__
self.en + 15
class TestBaseKey(unittest.TestCase):
def setUp(self) -> None:
self.n = mpz(123457)
self.key = 191919191919191
self.public_param = PublicParam(
n_modulus=self.n,
bits=VEParameters.KEY_SIZE // 2,
hashing_function=FDH(VEParameters.KEY_SIZE, self.n * self.n).H
)
self.base_key = BaseKey(public_param=self.public_param,
key=self.key)
def test_base_key_01_public_param(self):
"""Check public param property and repr"""
self.assertEqual(self.public_param, self.base_key.public_param)
self.assertTrue(self.base_key.__repr__ != '')
def test_base_key_02_hash(self):
"""Tests hash magic method"""
result = hash(self.base_key)
self.assertEqual(result, self.key)
def test_base_key_03_equal(self):
self.assertTrue(self.base_key == self.base_key)
# Create another base key
n = mpz(123457)
key = 19191919191919121
self.public_param = PublicParam(
n_modulus=n,
bits=VEParameters.KEY_SIZE // 2,
hashing_function=FDH(VEParameters.KEY_SIZE, n * n).H
)
base_key_2 = BaseKey(public_param=self.public_param,
key=key)
self.assertFalse(self.base_key == base_key_2)
# Test compare different type
with self.assertRaises(TypeError):
self.base_key == 10
def test_base_key_03_populate_tau(self):
result = self.base_key._populate_tau(tau=1, len_=10)
self.assertEqual(len(result), 10)
self.assertTrue(all([r.bit_length() <= VEParameters.KEY_SIZE // 8 for r in result]))
class TestUserKey(unittest.TestCase):
def setUp(self) -> None:
self.n = mpz(123457)
self.key = 191919191919191
self.public_param = PublicParam(
n_modulus=self.n,
bits=VEParameters.KEY_SIZE // 2,
hashing_function=FDH(VEParameters.KEY_SIZE, self.n * self.n).H
)
self.user_key = UserKey(public_param=self.public_param,
key=self.key)
def test_user_key_01_equality(self):
server_key = ServerKey(public_param=self.public_param,
key=self.key)
# Can not compare user key and server key
with self.assertRaises(TypeError):
self.user_key == server_key
def test_user_key_02_encrypt(self):
"""Tests UserKey encryption"""
plaintext = [mpz(10), mpz(10), mpz(10)]
en = self.user_key.encrypt(plaintext=plaintext,
tau=1)
self.assertIsInstance(en, list)
self.assertEqual(len(en), 3)
with self.assertRaises(TypeError):
self.user_key.encrypt(plaintext="not-a-list",
tau=1)
class TestServerKey(unittest.TestCase):
def test_server_key_decryption(self):
n = mpz(123457)
public_param = PublicParam(
n_modulus=n,
bits=VEParameters.KEY_SIZE // 2,
hashing_function=FDH(VEParameters.KEY_SIZE, n * n).H
)
user_key_1 = UserKey(public_param=public_param,
key=10)
user_key_2 = UserKey(public_param=public_param,
key=10)
server_key = ServerKey(public_param=public_param,
key=-20)
plaintext = [mpz(10), mpz(10), mpz(10)]
en_1 = user_key_1.encrypt(plaintext=plaintext,
tau=1)
en_2 = user_key_2.encrypt(plaintext=plaintext,
tau=1)
en_1 = [EncryptedNumber(public_param, en) for en in en_1]
en_2 = [EncryptedNumber(public_param, en) for en in en_2]
sum_ = [sum(en) for en in zip(*[en_1, en_2])]
dec = server_key.decrypt(sum_, tau=1)
self.assertEqual(dec, [20, 20, 20])
class TestJoyeLibert(unittest.TestCase):
def setUp(self) -> None:
self.jl = JoyeLibert()
p = mpz(
7801876574383880214548650574033350741129913580793719706746361606042541080141291132224899113047934760791108387050756752894517232516965892712015132079112571
)
q = mpz(
7755946847853454424709929267431997195175500554762787715247111385596652741022399320865688002114973453057088521173384791077635017567166681500095602864712097
)
n = p * q
self.public_param = PublicParam(
n_modulus=n,
bits=VEParameters.KEY_SIZE // 2,
hashing_function=FDH(VEParameters.KEY_SIZE, n * n).H
)
self.user_key_1 = UserKey(public_param=self.public_param, key=10)
self.user_key_2 = UserKey(public_param=self.public_param, key=10)
self.server_key = ServerKey(public_param=self.public_param, key=-20)
def test_joye_libert_01_protect(self):
"""Tests protect method """
plaintext = [10, 10, 10]
en = self.jl.protect(public_param=self.public_param,
user_key=self.user_key_1,
tau=1,
x_u_tau=plaintext,
n_users=2)
# Expected length is 1 due to vector encoder
self.assertTrue(len(en) == 1)
plaintext = [11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27,
11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27,
11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27,
11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27,
11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27,
]
en = self.jl.protect(public_param=self.public_param,
user_key=self.user_key_1,
tau=1,
x_u_tau=plaintext,
n_users=2)
# Expected length is 2 due to vector encoder
self.assertEqual(len(en), 2)
with self.assertRaises(TypeError):
self.jl.protect(public_param=self.public_param,
user_key='in-valid-user-key',
tau=1,
x_u_tau=plaintext,
n_users=2)
with self.assertRaises(ValueError):
self.jl.protect(public_param=PublicParam(n_modulus=mpz(1111),
bits=VEParameters.KEY_SIZE // 2,
hashing_function=
FDH(VEParameters.KEY_SIZE, mpz(1111) * mpz(1111)).H),
user_key=self.user_key_2,
tau=1,
x_u_tau=plaintext,
n_users=2)
with self.assertRaises(TypeError):
self.jl.protect(public_param=self.public_param,
user_key=self.user_key_1,
tau=1,
x_u_tau='invalid-plaintext',
n_users=2)
def test_joye_libert_02_aggregate(self):
plaintext = [10, 10, 10]
en_1 = self.jl.protect(public_param=self.public_param,
user_key=self.user_key_1,
tau=1,
x_u_tau=plaintext,
n_users=2)
en_2 = self.jl.protect(public_param=self.public_param,
user_key=self.user_key_2,
tau=1,
x_u_tau=plaintext,
n_users=2)
en_1_ = [EncryptedNumber(self.public_param, int(en)) for en in en_1]
en_2_ = [EncryptedNumber(self.public_param, int(en)) for en in en_2]
agg = self.jl.aggregate(sk_0=self.server_key,
tau=1,
list_y_u_tau=[en_1_, en_2_])
self.assertListEqual(agg, [20, 20, 20])