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
|
/* ----- kem/sntrup761, derived from supercop/crypto_kem/try.c */
/*
derived from djb work from lib25519/libntruprime
mj modifications:
- rename files to test-crypto.c and _crypto_<>.<>.inc
- fix compiler warnings
- include crypto.h
- use less rounds for valgrind test
- reformat using clang-format
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include "crypto.h"
#define fail ((ok = 0), printf)
static const char *kem_sntrup761_checksums[] = {
"4081ab3f61bac9aae91bff7f9b212855177591ec4427dff2a501be124c5bb97d",
"730a572b64fa05a42bce7b1573edc04b70ef75909db309c012aa27f53f1f2f41",
};
static int (*crypto_kem_keypair)(unsigned char *, unsigned char *);
static int (*crypto_kem_enc)(unsigned char *, unsigned char *,
const unsigned char *);
static int (*crypto_kem_dec)(unsigned char *, const unsigned char *,
const unsigned char *);
#define crypto_kem_SECRETKEYBYTES crypto_kem_sntrup761_SECRETKEYBYTES
#define crypto_kem_PUBLICKEYBYTES crypto_kem_sntrup761_PUBLICKEYBYTES
#define crypto_kem_CIPHERTEXTBYTES crypto_kem_sntrup761_CIPHERTEXTBYTES
#define crypto_kem_BYTES crypto_kem_sntrup761_BYTES
static void *storage_kem_sntrup761_p;
static unsigned char *test_kem_sntrup761_p;
static void *storage_kem_sntrup761_s;
static unsigned char *test_kem_sntrup761_s;
static void *storage_kem_sntrup761_k;
static unsigned char *test_kem_sntrup761_k;
static void *storage_kem_sntrup761_c;
static unsigned char *test_kem_sntrup761_c;
static void *storage_kem_sntrup761_t;
static unsigned char *test_kem_sntrup761_t;
static void *storage_kem_sntrup761_p2;
static unsigned char *test_kem_sntrup761_p2;
static void *storage_kem_sntrup761_s2;
static unsigned char *test_kem_sntrup761_s2;
static void *storage_kem_sntrup761_k2;
static unsigned char *test_kem_sntrup761_k2;
static void *storage_kem_sntrup761_c2;
static unsigned char *test_kem_sntrup761_c2;
static void *storage_kem_sntrup761_t2;
static unsigned char *test_kem_sntrup761_t2;
static void test_kem_sntrup761_impl(long long impl) {
unsigned char *p = test_kem_sntrup761_p;
unsigned char *s = test_kem_sntrup761_s;
unsigned char *k = test_kem_sntrup761_k;
unsigned char *c = test_kem_sntrup761_c;
unsigned char *t = test_kem_sntrup761_t;
unsigned char *p2 = test_kem_sntrup761_p2;
unsigned char *s2 = test_kem_sntrup761_s2;
unsigned char *k2 = test_kem_sntrup761_k2;
unsigned char *c2 = test_kem_sntrup761_c2;
unsigned char *t2 = test_kem_sntrup761_t2;
long long plen = crypto_kem_PUBLICKEYBYTES;
long long slen = crypto_kem_SECRETKEYBYTES;
long long klen = crypto_kem_BYTES;
long long clen = crypto_kem_CIPHERTEXTBYTES;
long long tlen = crypto_kem_BYTES;
if (targetn && atol(targetn) != impl) return;
crypto_kem_keypair = crypto_kem_sntrup761_keypair;
crypto_kem_enc = crypto_kem_sntrup761_enc;
crypto_kem_dec = crypto_kem_sntrup761_dec;
for (long long checksumbig = 0; checksumbig < 2; ++checksumbig) {
long long loops = checksumbig ? 64 : 8;
if (checksumbig && valgrind) break;
checksum_clear();
for (long long loop = 0; loop < loops; ++loop) {
output_prepare(p2, p, plen);
output_prepare(s2, s, slen);
crypto_kem_keypair(p, s);
public(p, plen);
public(s, slen);
checksum(p, plen);
checksum(s, slen);
output_compare(p2, p, plen, "crypto_kem_keypair");
output_compare(s2, s, slen, "crypto_kem_keypair");
output_prepare(c2, c, clen);
output_prepare(k2, k, klen);
memcpy(p2, p, plen);
double_canary(p2, p, plen);
secret(p, plen);
crypto_kem_enc(c, k, p);
public(p, plen);
public(c, clen);
public(k, klen);
checksum(c, clen);
checksum(k, klen);
output_compare(c2, c, clen, "crypto_kem_enc");
output_compare(k2, k, klen, "crypto_kem_enc");
input_compare(p2, p, plen, "crypto_kem_enc");
output_prepare(t2, t, tlen);
memcpy(c2, c, clen);
double_canary(c2, c, clen);
memcpy(s2, s, slen);
double_canary(s2, s, slen);
secret(c, clen);
secret(s, slen);
crypto_kem_dec(t, c, s);
public(c, clen);
public(s, slen);
public(t, tlen);
if (memcmp(t, k, klen) != 0)
fail("failure: crypto_kem_dec does not match k\n");
checksum(t, tlen);
output_compare(t2, t, tlen, "crypto_kem_dec");
input_compare(c2, c, clen, "crypto_kem_dec");
input_compare(s2, s, slen, "crypto_kem_dec");
double_canary(t2, t, tlen);
double_canary(c2, c, clen);
double_canary(s2, s, slen);
secret(c2, clen);
secret(s2, slen);
crypto_kem_dec(t2, c2, s2);
public(c2, clen);
public(s2, slen);
public(t2, tlen);
if (memcmp(t2, t, tlen) != 0)
fail("failure: crypto_kem_dec is nondeterministic\n");
double_canary(t2, t, tlen);
double_canary(c2, c, clen);
double_canary(s2, s, slen);
secret(c2, clen);
secret(s, slen);
crypto_kem_dec(c2, c2, s);
public(c2, tlen);
public(s, slen);
if (memcmp(c2, t, tlen) != 0)
fail("failure: crypto_kem_dec does not handle c=t overlap\n");
memcpy(c2, c, clen);
secret(c, clen);
secret(s2, slen);
crypto_kem_dec(s2, c, s2);
public(s2, tlen);
public(c, clen);
if (memcmp(s2, t, tlen) != 0)
fail("failure: crypto_kem_dec does not handle s=t overlap\n");
memcpy(s2, s, slen);
c[myrandom() % clen] += 1 + (myrandom() % 255);
crypto_kem_dec(t, c, s);
checksum(t, tlen);
c[myrandom() % clen] += 1 + (myrandom() % 255);
crypto_kem_dec(t, c, s);
checksum(t, tlen);
c[myrandom() % clen] += 1 + (myrandom() % 255);
crypto_kem_dec(t, c, s);
checksum(t, tlen);
}
checksum_expected(kem_sntrup761_checksums[checksumbig]);
}
}
void test_kem_sntrup761(void) {
long long maxalloc = 0;
if (targeto && strcmp(targeto, "kem")) return;
if (targetp && strcmp(targetp, "sntrup761")) return;
storage_kem_sntrup761_p = callocplus(crypto_kem_PUBLICKEYBYTES);
test_kem_sntrup761_p =
aligned(storage_kem_sntrup761_p, crypto_kem_PUBLICKEYBYTES);
if (crypto_kem_PUBLICKEYBYTES > maxalloc)
maxalloc = crypto_kem_PUBLICKEYBYTES;
storage_kem_sntrup761_s = callocplus(crypto_kem_SECRETKEYBYTES);
test_kem_sntrup761_s =
aligned(storage_kem_sntrup761_s, crypto_kem_SECRETKEYBYTES);
if (crypto_kem_SECRETKEYBYTES > maxalloc)
maxalloc = crypto_kem_SECRETKEYBYTES;
storage_kem_sntrup761_k = callocplus(crypto_kem_BYTES);
test_kem_sntrup761_k = aligned(storage_kem_sntrup761_k, crypto_kem_BYTES);
if (crypto_kem_BYTES > maxalloc) maxalloc = crypto_kem_BYTES;
storage_kem_sntrup761_c = callocplus(crypto_kem_CIPHERTEXTBYTES);
test_kem_sntrup761_c =
aligned(storage_kem_sntrup761_c, crypto_kem_CIPHERTEXTBYTES);
if (crypto_kem_CIPHERTEXTBYTES > maxalloc)
maxalloc = crypto_kem_CIPHERTEXTBYTES;
storage_kem_sntrup761_t = callocplus(crypto_kem_BYTES);
test_kem_sntrup761_t = aligned(storage_kem_sntrup761_t, crypto_kem_BYTES);
if (crypto_kem_BYTES > maxalloc) maxalloc = crypto_kem_BYTES;
storage_kem_sntrup761_p2 = callocplus(maxalloc);
test_kem_sntrup761_p2 =
aligned(storage_kem_sntrup761_p2, crypto_kem_PUBLICKEYBYTES);
storage_kem_sntrup761_s2 = callocplus(maxalloc);
test_kem_sntrup761_s2 =
aligned(storage_kem_sntrup761_s2, crypto_kem_SECRETKEYBYTES);
storage_kem_sntrup761_k2 = callocplus(maxalloc);
test_kem_sntrup761_k2 = aligned(storage_kem_sntrup761_k2, crypto_kem_BYTES);
storage_kem_sntrup761_c2 = callocplus(maxalloc);
test_kem_sntrup761_c2 =
aligned(storage_kem_sntrup761_c2, crypto_kem_CIPHERTEXTBYTES);
storage_kem_sntrup761_t2 = callocplus(maxalloc);
test_kem_sntrup761_t2 = aligned(storage_kem_sntrup761_t2, crypto_kem_BYTES);
for (long long offset = 0; offset < 2; ++offset) {
if (targetoffset && atol(targetoffset) != offset) continue;
if (offset && valgrind) break;
printf("kem_sntrup761 offset %lld\n", offset);
forked(test_kem_sntrup761_impl, -1);
++test_kem_sntrup761_p;
++test_kem_sntrup761_s;
++test_kem_sntrup761_k;
++test_kem_sntrup761_c;
++test_kem_sntrup761_t;
++test_kem_sntrup761_p2;
++test_kem_sntrup761_s2;
++test_kem_sntrup761_k2;
++test_kem_sntrup761_c2;
++test_kem_sntrup761_t2;
}
free(storage_kem_sntrup761_t2);
free(storage_kem_sntrup761_c2);
free(storage_kem_sntrup761_k2);
free(storage_kem_sntrup761_s2);
free(storage_kem_sntrup761_p2);
free(storage_kem_sntrup761_t);
free(storage_kem_sntrup761_c);
free(storage_kem_sntrup761_k);
free(storage_kem_sntrup761_s);
free(storage_kem_sntrup761_p);
}
#undef crypto_kem_SECRETKEYBYTES
#undef crypto_kem_PUBLICKEYBYTES
#undef crypto_kem_CIPHERTEXTBYTES
#undef crypto_kem_BYTES
|
