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-rw-r--r--src/util/test_crypto_paillier.c247
1 files changed, 0 insertions, 247 deletions
diff --git a/src/util/test_crypto_paillier.c b/src/util/test_crypto_paillier.c
deleted file mode 100644
index 64c9569cb..000000000
--- a/src/util/test_crypto_paillier.c
+++ /dev/null
@@ -1,247 +0,0 @@
1/*
2 This file is part of GNUnet.
3 Copyright (C) 2014 GNUnet e.V.
4
5 GNUnet is free software: you can redistribute it and/or modify it
6 under the terms of the GNU Affero General Public License as published
7 by the Free Software Foundation, either version 3 of the License,
8 or (at your option) any later version.
9
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Affero General Public License for more details.
14
15 You should have received a copy of the GNU Affero General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
17
18 SPDX-License-Identifier: AGPL3.0-or-later
19
20 */
21/**
22 * @file util/test_crypto_paillier.c
23 * @brief testcase paillier crypto
24 * @author Christian Fuchs
25 * @author Florian Dold
26 */
27#include "platform.h"
28#include "gnunet_util_lib.h"
29#include <gcrypt.h>
30
31
32static int
33test_crypto ()
34{
35 gcry_mpi_t plaintext;
36 gcry_mpi_t plaintext_result;
37 struct GNUNET_CRYPTO_PaillierCiphertext ciphertext;
38 struct GNUNET_CRYPTO_PaillierPublicKey public_key;
39 struct GNUNET_CRYPTO_PaillierPrivateKey private_key;
40 int ret = 0;
41
42 GNUNET_CRYPTO_paillier_create (&public_key,
43 &private_key);
44 GNUNET_assert (NULL != (plaintext = gcry_mpi_new (0)));
45 GNUNET_assert (NULL != (plaintext_result = gcry_mpi_new (0)));
46 gcry_mpi_randomize (plaintext,
47 GNUNET_CRYPTO_PAILLIER_BITS / 2,
48 GCRY_WEAK_RANDOM);
49
50 GNUNET_CRYPTO_paillier_encrypt (&public_key,
51 plaintext,
52 0 /* 0 hom ops */,
53 &ciphertext);
54 GNUNET_CRYPTO_paillier_decrypt (&private_key,
55 &public_key,
56 &ciphertext,
57 plaintext_result);
58 if (0 != gcry_mpi_cmp (plaintext,
59 plaintext_result))
60 {
61 fprintf (stderr,
62 "Paillier decryption failed with plaintext of size %u\n",
63 gcry_mpi_get_nbits (plaintext));
64 gcry_log_debugmpi ("\n",
65 plaintext);
66 gcry_log_debugmpi ("\n",
67 plaintext_result);
68 ret = 1;
69 }
70 gcry_mpi_release (plaintext);
71 gcry_mpi_release (plaintext_result);
72 return ret;
73}
74
75
76static int
77test_hom_simple (unsigned int a,
78 unsigned int b)
79{
80 gcry_mpi_t m1;
81 gcry_mpi_t m2;
82 gcry_mpi_t result;
83 gcry_mpi_t hom_result;
84 struct GNUNET_CRYPTO_PaillierCiphertext c1;
85 struct GNUNET_CRYPTO_PaillierCiphertext c2;
86 struct GNUNET_CRYPTO_PaillierCiphertext c_result;
87 struct GNUNET_CRYPTO_PaillierPublicKey public_key;
88 struct GNUNET_CRYPTO_PaillierPrivateKey private_key;
89 int ret = 0;
90
91 GNUNET_CRYPTO_paillier_create (&public_key,
92 &private_key);
93
94 GNUNET_assert (NULL != (m1 = gcry_mpi_new (0)));
95 GNUNET_assert (NULL != (m2 = gcry_mpi_new (0)));
96 GNUNET_assert (NULL != (result = gcry_mpi_new (0)));
97 GNUNET_assert (NULL != (hom_result = gcry_mpi_new (0)));
98 m1 = gcry_mpi_set_ui (m1, a);
99 m2 = gcry_mpi_set_ui (m2, b);
100 gcry_mpi_add (result,
101 m1,
102 m2);
103 GNUNET_CRYPTO_paillier_encrypt (&public_key,
104 m1,
105 2,
106 &c1);
107 GNUNET_CRYPTO_paillier_encrypt (&public_key,
108 m2,
109 2,
110 &c2);
111 GNUNET_CRYPTO_paillier_hom_add (&public_key,
112 &c1,
113 &c2,
114 &c_result);
115 GNUNET_CRYPTO_paillier_decrypt (&private_key,
116 &public_key,
117 &c_result,
118 hom_result);
119 if (0 != gcry_mpi_cmp (result, hom_result))
120 {
121 fprintf (stderr,
122 "GNUNET_CRYPTO_paillier failed simple math!\n");
123 gcry_log_debugmpi ("got ", hom_result);
124 gcry_log_debugmpi ("wanted ", result);
125 ret = 1;
126 }
127 gcry_mpi_release (m1);
128 gcry_mpi_release (m2);
129 gcry_mpi_release (result);
130 gcry_mpi_release (hom_result);
131 return ret;
132}
133
134
135static int
136test_hom ()
137{
138 int ret;
139 gcry_mpi_t m1;
140 gcry_mpi_t m2;
141 gcry_mpi_t result;
142 gcry_mpi_t hom_result;
143 struct GNUNET_CRYPTO_PaillierCiphertext c1;
144 struct GNUNET_CRYPTO_PaillierCiphertext c2;
145 struct GNUNET_CRYPTO_PaillierCiphertext c_result;
146 struct GNUNET_CRYPTO_PaillierPublicKey public_key;
147 struct GNUNET_CRYPTO_PaillierPrivateKey private_key;
148
149 GNUNET_CRYPTO_paillier_create (&public_key,
150 &private_key);
151
152 GNUNET_assert (NULL != (m1 = gcry_mpi_new (0)));
153 GNUNET_assert (NULL != (m2 = gcry_mpi_new (0)));
154 GNUNET_assert (NULL != (result = gcry_mpi_new (0)));
155 GNUNET_assert (NULL != (hom_result = gcry_mpi_new (0)));
156 m1 = gcry_mpi_set_ui (m1, 1);
157 /* m1 = m1 * 2 ^ (GCPB - 3) */
158 gcry_mpi_mul_2exp (m1,
159 m1,
160 GNUNET_CRYPTO_PAILLIER_BITS - 3);
161 m2 = gcry_mpi_set_ui (m2, 15);
162 /* m1 = m1 * 2 ^ (GCPB / 2) */
163 gcry_mpi_mul_2exp (m2,
164 m2,
165 GNUNET_CRYPTO_PAILLIER_BITS / 2);
166 gcry_mpi_add (result,
167 m1,
168 m2);
169
170 if (1 != (ret = GNUNET_CRYPTO_paillier_encrypt (&public_key,
171 m1,
172 2,
173 &c1)))
174 {
175 fprintf (stderr,
176 "GNUNET_CRYPTO_paillier_encrypt 1 failed, should return 1 allowed operation, got %d!\n",
177 ret);
178 ret = 1;
179 goto out;
180 }
181 if (2 != (ret = GNUNET_CRYPTO_paillier_encrypt (&public_key,
182 m2,
183 2,
184 &c2)))
185 {
186 fprintf (stderr,
187 "GNUNET_CRYPTO_paillier_encrypt 2 failed, should return 2 allowed operation, got %d!\n",
188 ret);
189 ret = 1;
190 goto out;
191 }
192
193 if (0 != (ret = GNUNET_CRYPTO_paillier_hom_add (&public_key,
194 &c1,
195 &c2,
196 &c_result)))
197 {
198 fprintf (stderr,
199 "GNUNET_CRYPTO_paillier_hom_add failed, expected 0 remaining operations, got %d!\n",
200 ret);
201 ret = 1;
202 goto out;
203 }
204
205 GNUNET_CRYPTO_paillier_decrypt (&private_key,
206 &public_key,
207 &c_result,
208 hom_result);
209
210 if (0 != gcry_mpi_cmp (result, hom_result))
211 {
212 fprintf (stderr,
213 "GNUNET_CRYPTO_paillier miscalculated with large numbers!\n");
214 gcry_log_debugmpi ("got", hom_result);
215 gcry_log_debugmpi ("wanted", result);
216 ret = 1;
217 }
218out:
219 gcry_mpi_release (m1);
220 gcry_mpi_release (m2);
221 gcry_mpi_release (result);
222 gcry_mpi_release (hom_result);
223 return ret;
224}
225
226
227int
228main (int argc,
229 char *argv[])
230{
231 int ret;
232
233 ret = test_crypto ();
234 if (0 != ret)
235 return ret;
236 ret = test_hom_simple (2, 4);
237 if (0 != ret)
238 return ret;
239 ret = test_hom_simple (13, 17);
240 if (0 != ret)
241 return ret;
242 ret = test_hom ();
243 return ret;
244}
245
246
247/* end of test_crypto_paillier.c */
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-23 18:53:37 +0000