Coverage Report

Created: 2025-08-28 06:13

/src/nss/lib/freebl/verified/Hacl_Poly1305_32.c
Line
Count
Source (jump to first uncovered line)
1
/* MIT License
2
 *
3
 * Copyright (c) 2016-2022 INRIA, CMU and Microsoft Corporation
4
 * Copyright (c) 2022-2023 HACL* Contributors
5
 *
6
 * Permission is hereby granted, free of charge, to any person obtaining a copy
7
 * of this software and associated documentation files (the "Software"), to deal
8
 * in the Software without restriction, including without limitation the rights
9
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10
 * copies of the Software, and to permit persons to whom the Software is
11
 * furnished to do so, subject to the following conditions:
12
 *
13
 * The above copyright notice and this permission notice shall be included in all
14
 * copies or substantial portions of the Software.
15
 *
16
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22
 * SOFTWARE.
23
 */
24
25
#include "Hacl_Poly1305_32.h"
26
27
void
28
Hacl_Poly1305_32_poly1305_init(uint64_t *ctx, uint8_t *key)
29
0
{
30
0
    uint64_t *acc = ctx;
31
0
    uint64_t *pre = ctx + (uint32_t)5U;
32
0
    uint8_t *kr = key;
33
0
    acc[0U] = (uint64_t)0U;
34
0
    acc[1U] = (uint64_t)0U;
35
0
    acc[2U] = (uint64_t)0U;
36
0
    acc[3U] = (uint64_t)0U;
37
0
    acc[4U] = (uint64_t)0U;
38
0
    uint64_t u0 = load64_le(kr);
39
0
    uint64_t lo = u0;
40
0
    uint64_t u = load64_le(kr + (uint32_t)8U);
41
0
    uint64_t hi = u;
42
0
    uint64_t mask0 = (uint64_t)0x0ffffffc0fffffffU;
43
0
    uint64_t mask1 = (uint64_t)0x0ffffffc0ffffffcU;
44
0
    uint64_t lo1 = lo & mask0;
45
0
    uint64_t hi1 = hi & mask1;
46
0
    uint64_t *r = pre;
47
0
    uint64_t *r5 = pre + (uint32_t)5U;
48
0
    uint64_t *rn = pre + (uint32_t)10U;
49
0
    uint64_t *rn_5 = pre + (uint32_t)15U;
50
0
    uint64_t r_vec0 = lo1;
51
0
    uint64_t r_vec1 = hi1;
52
0
    uint64_t f00 = r_vec0 & (uint64_t)0x3ffffffU;
53
0
    uint64_t f10 = r_vec0 >> (uint32_t)26U & (uint64_t)0x3ffffffU;
54
0
    uint64_t f20 = r_vec0 >> (uint32_t)52U | (r_vec1 & (uint64_t)0x3fffU) << (uint32_t)12U;
55
0
    uint64_t f30 = r_vec1 >> (uint32_t)14U & (uint64_t)0x3ffffffU;
56
0
    uint64_t f40 = r_vec1 >> (uint32_t)40U;
57
0
    uint64_t f0 = f00;
58
0
    uint64_t f1 = f10;
59
0
    uint64_t f2 = f20;
60
0
    uint64_t f3 = f30;
61
0
    uint64_t f4 = f40;
62
0
    r[0U] = f0;
63
0
    r[1U] = f1;
64
0
    r[2U] = f2;
65
0
    r[3U] = f3;
66
0
    r[4U] = f4;
67
0
    uint64_t f200 = r[0U];
68
0
    uint64_t f21 = r[1U];
69
0
    uint64_t f22 = r[2U];
70
0
    uint64_t f23 = r[3U];
71
0
    uint64_t f24 = r[4U];
72
0
    r5[0U] = f200 * (uint64_t)5U;
73
0
    r5[1U] = f21 * (uint64_t)5U;
74
0
    r5[2U] = f22 * (uint64_t)5U;
75
0
    r5[3U] = f23 * (uint64_t)5U;
76
0
    r5[4U] = f24 * (uint64_t)5U;
77
0
    rn[0U] = r[0U];
78
0
    rn[1U] = r[1U];
79
0
    rn[2U] = r[2U];
80
0
    rn[3U] = r[3U];
81
0
    rn[4U] = r[4U];
82
0
    rn_5[0U] = r5[0U];
83
0
    rn_5[1U] = r5[1U];
84
0
    rn_5[2U] = r5[2U];
85
0
    rn_5[3U] = r5[3U];
86
0
    rn_5[4U] = r5[4U];
87
0
}
88
89
void
90
Hacl_Poly1305_32_poly1305_update1(uint64_t *ctx, uint8_t *text)
91
0
{
92
0
    uint64_t *pre = ctx + (uint32_t)5U;
93
0
    uint64_t *acc = ctx;
94
0
    uint64_t e[5U] = { 0U };
95
0
    uint64_t u0 = load64_le(text);
96
0
    uint64_t lo = u0;
97
0
    uint64_t u = load64_le(text + (uint32_t)8U);
98
0
    uint64_t hi = u;
99
0
    uint64_t f0 = lo;
100
0
    uint64_t f1 = hi;
101
0
    uint64_t f010 = f0 & (uint64_t)0x3ffffffU;
102
0
    uint64_t f110 = f0 >> (uint32_t)26U & (uint64_t)0x3ffffffU;
103
0
    uint64_t f20 = f0 >> (uint32_t)52U | (f1 & (uint64_t)0x3fffU) << (uint32_t)12U;
104
0
    uint64_t f30 = f1 >> (uint32_t)14U & (uint64_t)0x3ffffffU;
105
0
    uint64_t f40 = f1 >> (uint32_t)40U;
106
0
    uint64_t f01 = f010;
107
0
    uint64_t f111 = f110;
108
0
    uint64_t f2 = f20;
109
0
    uint64_t f3 = f30;
110
0
    uint64_t f41 = f40;
111
0
    e[0U] = f01;
112
0
    e[1U] = f111;
113
0
    e[2U] = f2;
114
0
    e[3U] = f3;
115
0
    e[4U] = f41;
116
0
    uint64_t b = (uint64_t)0x1000000U;
117
0
    uint64_t mask = b;
118
0
    uint64_t f4 = e[4U];
119
0
    e[4U] = f4 | mask;
120
0
    uint64_t *r = pre;
121
0
    uint64_t *r5 = pre + (uint32_t)5U;
122
0
    uint64_t r0 = r[0U];
123
0
    uint64_t r1 = r[1U];
124
0
    uint64_t r2 = r[2U];
125
0
    uint64_t r3 = r[3U];
126
0
    uint64_t r4 = r[4U];
127
0
    uint64_t r51 = r5[1U];
128
0
    uint64_t r52 = r5[2U];
129
0
    uint64_t r53 = r5[3U];
130
0
    uint64_t r54 = r5[4U];
131
0
    uint64_t f10 = e[0U];
132
0
    uint64_t f11 = e[1U];
133
0
    uint64_t f12 = e[2U];
134
0
    uint64_t f13 = e[3U];
135
0
    uint64_t f14 = e[4U];
136
0
    uint64_t a0 = acc[0U];
137
0
    uint64_t a1 = acc[1U];
138
0
    uint64_t a2 = acc[2U];
139
0
    uint64_t a3 = acc[3U];
140
0
    uint64_t a4 = acc[4U];
141
0
    uint64_t a01 = a0 + f10;
142
0
    uint64_t a11 = a1 + f11;
143
0
    uint64_t a21 = a2 + f12;
144
0
    uint64_t a31 = a3 + f13;
145
0
    uint64_t a41 = a4 + f14;
146
0
    uint64_t a02 = r0 * a01;
147
0
    uint64_t a12 = r1 * a01;
148
0
    uint64_t a22 = r2 * a01;
149
0
    uint64_t a32 = r3 * a01;
150
0
    uint64_t a42 = r4 * a01;
151
0
    uint64_t a03 = a02 + r54 * a11;
152
0
    uint64_t a13 = a12 + r0 * a11;
153
0
    uint64_t a23 = a22 + r1 * a11;
154
0
    uint64_t a33 = a32 + r2 * a11;
155
0
    uint64_t a43 = a42 + r3 * a11;
156
0
    uint64_t a04 = a03 + r53 * a21;
157
0
    uint64_t a14 = a13 + r54 * a21;
158
0
    uint64_t a24 = a23 + r0 * a21;
159
0
    uint64_t a34 = a33 + r1 * a21;
160
0
    uint64_t a44 = a43 + r2 * a21;
161
0
    uint64_t a05 = a04 + r52 * a31;
162
0
    uint64_t a15 = a14 + r53 * a31;
163
0
    uint64_t a25 = a24 + r54 * a31;
164
0
    uint64_t a35 = a34 + r0 * a31;
165
0
    uint64_t a45 = a44 + r1 * a31;
166
0
    uint64_t a06 = a05 + r51 * a41;
167
0
    uint64_t a16 = a15 + r52 * a41;
168
0
    uint64_t a26 = a25 + r53 * a41;
169
0
    uint64_t a36 = a35 + r54 * a41;
170
0
    uint64_t a46 = a45 + r0 * a41;
171
0
    uint64_t t0 = a06;
172
0
    uint64_t t1 = a16;
173
0
    uint64_t t2 = a26;
174
0
    uint64_t t3 = a36;
175
0
    uint64_t t4 = a46;
176
0
    uint64_t mask26 = (uint64_t)0x3ffffffU;
177
0
    uint64_t z0 = t0 >> (uint32_t)26U;
178
0
    uint64_t z1 = t3 >> (uint32_t)26U;
179
0
    uint64_t x0 = t0 & mask26;
180
0
    uint64_t x3 = t3 & mask26;
181
0
    uint64_t x1 = t1 + z0;
182
0
    uint64_t x4 = t4 + z1;
183
0
    uint64_t z01 = x1 >> (uint32_t)26U;
184
0
    uint64_t z11 = x4 >> (uint32_t)26U;
185
0
    uint64_t t = z11 << (uint32_t)2U;
186
0
    uint64_t z12 = z11 + t;
187
0
    uint64_t x11 = x1 & mask26;
188
0
    uint64_t x41 = x4 & mask26;
189
0
    uint64_t x2 = t2 + z01;
190
0
    uint64_t x01 = x0 + z12;
191
0
    uint64_t z02 = x2 >> (uint32_t)26U;
192
0
    uint64_t z13 = x01 >> (uint32_t)26U;
193
0
    uint64_t x21 = x2 & mask26;
194
0
    uint64_t x02 = x01 & mask26;
195
0
    uint64_t x31 = x3 + z02;
196
0
    uint64_t x12 = x11 + z13;
197
0
    uint64_t z03 = x31 >> (uint32_t)26U;
198
0
    uint64_t x32 = x31 & mask26;
199
0
    uint64_t x42 = x41 + z03;
200
0
    uint64_t o0 = x02;
201
0
    uint64_t o1 = x12;
202
0
    uint64_t o2 = x21;
203
0
    uint64_t o3 = x32;
204
0
    uint64_t o4 = x42;
205
0
    acc[0U] = o0;
206
0
    acc[1U] = o1;
207
0
    acc[2U] = o2;
208
0
    acc[3U] = o3;
209
0
    acc[4U] = o4;
210
0
}
211
212
void
213
Hacl_Poly1305_32_poly1305_update(uint64_t *ctx, uint32_t len, uint8_t *text)
214
0
{
215
0
    uint64_t *pre = ctx + (uint32_t)5U;
216
0
    uint64_t *acc = ctx;
217
0
    uint32_t nb = len / (uint32_t)16U;
218
0
    uint32_t rem = len % (uint32_t)16U;
219
0
    for (uint32_t i = (uint32_t)0U; i < nb; i++) {
220
0
        uint8_t *block = text + i * (uint32_t)16U;
221
0
        uint64_t e[5U] = { 0U };
222
0
        uint64_t u0 = load64_le(block);
223
0
        uint64_t lo = u0;
224
0
        uint64_t u = load64_le(block + (uint32_t)8U);
225
0
        uint64_t hi = u;
226
0
        uint64_t f0 = lo;
227
0
        uint64_t f1 = hi;
228
0
        uint64_t f010 = f0 & (uint64_t)0x3ffffffU;
229
0
        uint64_t f110 = f0 >> (uint32_t)26U & (uint64_t)0x3ffffffU;
230
0
        uint64_t f20 = f0 >> (uint32_t)52U | (f1 & (uint64_t)0x3fffU) << (uint32_t)12U;
231
0
        uint64_t f30 = f1 >> (uint32_t)14U & (uint64_t)0x3ffffffU;
232
0
        uint64_t f40 = f1 >> (uint32_t)40U;
233
0
        uint64_t f01 = f010;
234
0
        uint64_t f111 = f110;
235
0
        uint64_t f2 = f20;
236
0
        uint64_t f3 = f30;
237
0
        uint64_t f41 = f40;
238
0
        e[0U] = f01;
239
0
        e[1U] = f111;
240
0
        e[2U] = f2;
241
0
        e[3U] = f3;
242
0
        e[4U] = f41;
243
0
        uint64_t b = (uint64_t)0x1000000U;
244
0
        uint64_t mask = b;
245
0
        uint64_t f4 = e[4U];
246
0
        e[4U] = f4 | mask;
247
0
        uint64_t *r = pre;
248
0
        uint64_t *r5 = pre + (uint32_t)5U;
249
0
        uint64_t r0 = r[0U];
250
0
        uint64_t r1 = r[1U];
251
0
        uint64_t r2 = r[2U];
252
0
        uint64_t r3 = r[3U];
253
0
        uint64_t r4 = r[4U];
254
0
        uint64_t r51 = r5[1U];
255
0
        uint64_t r52 = r5[2U];
256
0
        uint64_t r53 = r5[3U];
257
0
        uint64_t r54 = r5[4U];
258
0
        uint64_t f10 = e[0U];
259
0
        uint64_t f11 = e[1U];
260
0
        uint64_t f12 = e[2U];
261
0
        uint64_t f13 = e[3U];
262
0
        uint64_t f14 = e[4U];
263
0
        uint64_t a0 = acc[0U];
264
0
        uint64_t a1 = acc[1U];
265
0
        uint64_t a2 = acc[2U];
266
0
        uint64_t a3 = acc[3U];
267
0
        uint64_t a4 = acc[4U];
268
0
        uint64_t a01 = a0 + f10;
269
0
        uint64_t a11 = a1 + f11;
270
0
        uint64_t a21 = a2 + f12;
271
0
        uint64_t a31 = a3 + f13;
272
0
        uint64_t a41 = a4 + f14;
273
0
        uint64_t a02 = r0 * a01;
274
0
        uint64_t a12 = r1 * a01;
275
0
        uint64_t a22 = r2 * a01;
276
0
        uint64_t a32 = r3 * a01;
277
0
        uint64_t a42 = r4 * a01;
278
0
        uint64_t a03 = a02 + r54 * a11;
279
0
        uint64_t a13 = a12 + r0 * a11;
280
0
        uint64_t a23 = a22 + r1 * a11;
281
0
        uint64_t a33 = a32 + r2 * a11;
282
0
        uint64_t a43 = a42 + r3 * a11;
283
0
        uint64_t a04 = a03 + r53 * a21;
284
0
        uint64_t a14 = a13 + r54 * a21;
285
0
        uint64_t a24 = a23 + r0 * a21;
286
0
        uint64_t a34 = a33 + r1 * a21;
287
0
        uint64_t a44 = a43 + r2 * a21;
288
0
        uint64_t a05 = a04 + r52 * a31;
289
0
        uint64_t a15 = a14 + r53 * a31;
290
0
        uint64_t a25 = a24 + r54 * a31;
291
0
        uint64_t a35 = a34 + r0 * a31;
292
0
        uint64_t a45 = a44 + r1 * a31;
293
0
        uint64_t a06 = a05 + r51 * a41;
294
0
        uint64_t a16 = a15 + r52 * a41;
295
0
        uint64_t a26 = a25 + r53 * a41;
296
0
        uint64_t a36 = a35 + r54 * a41;
297
0
        uint64_t a46 = a45 + r0 * a41;
298
0
        uint64_t t0 = a06;
299
0
        uint64_t t1 = a16;
300
0
        uint64_t t2 = a26;
301
0
        uint64_t t3 = a36;
302
0
        uint64_t t4 = a46;
303
0
        uint64_t mask26 = (uint64_t)0x3ffffffU;
304
0
        uint64_t z0 = t0 >> (uint32_t)26U;
305
0
        uint64_t z1 = t3 >> (uint32_t)26U;
306
0
        uint64_t x0 = t0 & mask26;
307
0
        uint64_t x3 = t3 & mask26;
308
0
        uint64_t x1 = t1 + z0;
309
0
        uint64_t x4 = t4 + z1;
310
0
        uint64_t z01 = x1 >> (uint32_t)26U;
311
0
        uint64_t z11 = x4 >> (uint32_t)26U;
312
0
        uint64_t t = z11 << (uint32_t)2U;
313
0
        uint64_t z12 = z11 + t;
314
0
        uint64_t x11 = x1 & mask26;
315
0
        uint64_t x41 = x4 & mask26;
316
0
        uint64_t x2 = t2 + z01;
317
0
        uint64_t x01 = x0 + z12;
318
0
        uint64_t z02 = x2 >> (uint32_t)26U;
319
0
        uint64_t z13 = x01 >> (uint32_t)26U;
320
0
        uint64_t x21 = x2 & mask26;
321
0
        uint64_t x02 = x01 & mask26;
322
0
        uint64_t x31 = x3 + z02;
323
0
        uint64_t x12 = x11 + z13;
324
0
        uint64_t z03 = x31 >> (uint32_t)26U;
325
0
        uint64_t x32 = x31 & mask26;
326
0
        uint64_t x42 = x41 + z03;
327
0
        uint64_t o0 = x02;
328
0
        uint64_t o1 = x12;
329
0
        uint64_t o2 = x21;
330
0
        uint64_t o3 = x32;
331
0
        uint64_t o4 = x42;
332
0
        acc[0U] = o0;
333
0
        acc[1U] = o1;
334
0
        acc[2U] = o2;
335
0
        acc[3U] = o3;
336
0
        acc[4U] = o4;
337
0
    }
338
0
    if (rem > (uint32_t)0U) {
339
0
        uint8_t *last = text + nb * (uint32_t)16U;
340
0
        uint64_t e[5U] = { 0U };
341
0
        uint8_t tmp[16U] = { 0U };
342
0
        memcpy(tmp, last, rem * sizeof(uint8_t));
343
0
        uint64_t u0 = load64_le(tmp);
344
0
        uint64_t lo = u0;
345
0
        uint64_t u = load64_le(tmp + (uint32_t)8U);
346
0
        uint64_t hi = u;
347
0
        uint64_t f0 = lo;
348
0
        uint64_t f1 = hi;
349
0
        uint64_t f010 = f0 & (uint64_t)0x3ffffffU;
350
0
        uint64_t f110 = f0 >> (uint32_t)26U & (uint64_t)0x3ffffffU;
351
0
        uint64_t f20 = f0 >> (uint32_t)52U | (f1 & (uint64_t)0x3fffU) << (uint32_t)12U;
352
0
        uint64_t f30 = f1 >> (uint32_t)14U & (uint64_t)0x3ffffffU;
353
0
        uint64_t f40 = f1 >> (uint32_t)40U;
354
0
        uint64_t f01 = f010;
355
0
        uint64_t f111 = f110;
356
0
        uint64_t f2 = f20;
357
0
        uint64_t f3 = f30;
358
0
        uint64_t f4 = f40;
359
0
        e[0U] = f01;
360
0
        e[1U] = f111;
361
0
        e[2U] = f2;
362
0
        e[3U] = f3;
363
0
        e[4U] = f4;
364
0
        uint64_t b = (uint64_t)1U << rem * (uint32_t)8U % (uint32_t)26U;
365
0
        uint64_t mask = b;
366
0
        uint64_t fi = e[rem * (uint32_t)8U / (uint32_t)26U];
367
0
        e[rem * (uint32_t)8U / (uint32_t)26U] = fi | mask;
368
0
        uint64_t *r = pre;
369
0
        uint64_t *r5 = pre + (uint32_t)5U;
370
0
        uint64_t r0 = r[0U];
371
0
        uint64_t r1 = r[1U];
372
0
        uint64_t r2 = r[2U];
373
0
        uint64_t r3 = r[3U];
374
0
        uint64_t r4 = r[4U];
375
0
        uint64_t r51 = r5[1U];
376
0
        uint64_t r52 = r5[2U];
377
0
        uint64_t r53 = r5[3U];
378
0
        uint64_t r54 = r5[4U];
379
0
        uint64_t f10 = e[0U];
380
0
        uint64_t f11 = e[1U];
381
0
        uint64_t f12 = e[2U];
382
0
        uint64_t f13 = e[3U];
383
0
        uint64_t f14 = e[4U];
384
0
        uint64_t a0 = acc[0U];
385
0
        uint64_t a1 = acc[1U];
386
0
        uint64_t a2 = acc[2U];
387
0
        uint64_t a3 = acc[3U];
388
0
        uint64_t a4 = acc[4U];
389
0
        uint64_t a01 = a0 + f10;
390
0
        uint64_t a11 = a1 + f11;
391
0
        uint64_t a21 = a2 + f12;
392
0
        uint64_t a31 = a3 + f13;
393
0
        uint64_t a41 = a4 + f14;
394
0
        uint64_t a02 = r0 * a01;
395
0
        uint64_t a12 = r1 * a01;
396
0
        uint64_t a22 = r2 * a01;
397
0
        uint64_t a32 = r3 * a01;
398
0
        uint64_t a42 = r4 * a01;
399
0
        uint64_t a03 = a02 + r54 * a11;
400
0
        uint64_t a13 = a12 + r0 * a11;
401
0
        uint64_t a23 = a22 + r1 * a11;
402
0
        uint64_t a33 = a32 + r2 * a11;
403
0
        uint64_t a43 = a42 + r3 * a11;
404
0
        uint64_t a04 = a03 + r53 * a21;
405
0
        uint64_t a14 = a13 + r54 * a21;
406
0
        uint64_t a24 = a23 + r0 * a21;
407
0
        uint64_t a34 = a33 + r1 * a21;
408
0
        uint64_t a44 = a43 + r2 * a21;
409
0
        uint64_t a05 = a04 + r52 * a31;
410
0
        uint64_t a15 = a14 + r53 * a31;
411
0
        uint64_t a25 = a24 + r54 * a31;
412
0
        uint64_t a35 = a34 + r0 * a31;
413
0
        uint64_t a45 = a44 + r1 * a31;
414
0
        uint64_t a06 = a05 + r51 * a41;
415
0
        uint64_t a16 = a15 + r52 * a41;
416
0
        uint64_t a26 = a25 + r53 * a41;
417
0
        uint64_t a36 = a35 + r54 * a41;
418
0
        uint64_t a46 = a45 + r0 * a41;
419
0
        uint64_t t0 = a06;
420
0
        uint64_t t1 = a16;
421
0
        uint64_t t2 = a26;
422
0
        uint64_t t3 = a36;
423
0
        uint64_t t4 = a46;
424
0
        uint64_t mask26 = (uint64_t)0x3ffffffU;
425
0
        uint64_t z0 = t0 >> (uint32_t)26U;
426
0
        uint64_t z1 = t3 >> (uint32_t)26U;
427
0
        uint64_t x0 = t0 & mask26;
428
0
        uint64_t x3 = t3 & mask26;
429
0
        uint64_t x1 = t1 + z0;
430
0
        uint64_t x4 = t4 + z1;
431
0
        uint64_t z01 = x1 >> (uint32_t)26U;
432
0
        uint64_t z11 = x4 >> (uint32_t)26U;
433
0
        uint64_t t = z11 << (uint32_t)2U;
434
0
        uint64_t z12 = z11 + t;
435
0
        uint64_t x11 = x1 & mask26;
436
0
        uint64_t x41 = x4 & mask26;
437
0
        uint64_t x2 = t2 + z01;
438
0
        uint64_t x01 = x0 + z12;
439
0
        uint64_t z02 = x2 >> (uint32_t)26U;
440
0
        uint64_t z13 = x01 >> (uint32_t)26U;
441
0
        uint64_t x21 = x2 & mask26;
442
0
        uint64_t x02 = x01 & mask26;
443
0
        uint64_t x31 = x3 + z02;
444
0
        uint64_t x12 = x11 + z13;
445
0
        uint64_t z03 = x31 >> (uint32_t)26U;
446
0
        uint64_t x32 = x31 & mask26;
447
0
        uint64_t x42 = x41 + z03;
448
0
        uint64_t o0 = x02;
449
0
        uint64_t o1 = x12;
450
0
        uint64_t o2 = x21;
451
0
        uint64_t o3 = x32;
452
0
        uint64_t o4 = x42;
453
0
        acc[0U] = o0;
454
0
        acc[1U] = o1;
455
0
        acc[2U] = o2;
456
0
        acc[3U] = o3;
457
0
        acc[4U] = o4;
458
0
        return;
459
0
    }
460
0
}
461
462
void
463
Hacl_Poly1305_32_poly1305_finish(uint8_t *tag, uint8_t *key, uint64_t *ctx)
464
0
{
465
0
    uint64_t *acc = ctx;
466
0
    uint8_t *ks = key + (uint32_t)16U;
467
0
    uint64_t f0 = acc[0U];
468
0
    uint64_t f13 = acc[1U];
469
0
    uint64_t f23 = acc[2U];
470
0
    uint64_t f33 = acc[3U];
471
0
    uint64_t f40 = acc[4U];
472
0
    uint64_t l0 = f0 + (uint64_t)0U;
473
0
    uint64_t tmp00 = l0 & (uint64_t)0x3ffffffU;
474
0
    uint64_t c00 = l0 >> (uint32_t)26U;
475
0
    uint64_t l1 = f13 + c00;
476
0
    uint64_t tmp10 = l1 & (uint64_t)0x3ffffffU;
477
0
    uint64_t c10 = l1 >> (uint32_t)26U;
478
0
    uint64_t l2 = f23 + c10;
479
0
    uint64_t tmp20 = l2 & (uint64_t)0x3ffffffU;
480
0
    uint64_t c20 = l2 >> (uint32_t)26U;
481
0
    uint64_t l3 = f33 + c20;
482
0
    uint64_t tmp30 = l3 & (uint64_t)0x3ffffffU;
483
0
    uint64_t c30 = l3 >> (uint32_t)26U;
484
0
    uint64_t l4 = f40 + c30;
485
0
    uint64_t tmp40 = l4 & (uint64_t)0x3ffffffU;
486
0
    uint64_t c40 = l4 >> (uint32_t)26U;
487
0
    uint64_t f010 = tmp00 + c40 * (uint64_t)5U;
488
0
    uint64_t f110 = tmp10;
489
0
    uint64_t f210 = tmp20;
490
0
    uint64_t f310 = tmp30;
491
0
    uint64_t f410 = tmp40;
492
0
    uint64_t l = f010 + (uint64_t)0U;
493
0
    uint64_t tmp0 = l & (uint64_t)0x3ffffffU;
494
0
    uint64_t c0 = l >> (uint32_t)26U;
495
0
    uint64_t l5 = f110 + c0;
496
0
    uint64_t tmp1 = l5 & (uint64_t)0x3ffffffU;
497
0
    uint64_t c1 = l5 >> (uint32_t)26U;
498
0
    uint64_t l6 = f210 + c1;
499
0
    uint64_t tmp2 = l6 & (uint64_t)0x3ffffffU;
500
0
    uint64_t c2 = l6 >> (uint32_t)26U;
501
0
    uint64_t l7 = f310 + c2;
502
0
    uint64_t tmp3 = l7 & (uint64_t)0x3ffffffU;
503
0
    uint64_t c3 = l7 >> (uint32_t)26U;
504
0
    uint64_t l8 = f410 + c3;
505
0
    uint64_t tmp4 = l8 & (uint64_t)0x3ffffffU;
506
0
    uint64_t c4 = l8 >> (uint32_t)26U;
507
0
    uint64_t f02 = tmp0 + c4 * (uint64_t)5U;
508
0
    uint64_t f12 = tmp1;
509
0
    uint64_t f22 = tmp2;
510
0
    uint64_t f32 = tmp3;
511
0
    uint64_t f42 = tmp4;
512
0
    uint64_t mh = (uint64_t)0x3ffffffU;
513
0
    uint64_t ml = (uint64_t)0x3fffffbU;
514
0
    uint64_t mask = FStar_UInt64_eq_mask(f42, mh);
515
0
    uint64_t mask1 = mask & FStar_UInt64_eq_mask(f32, mh);
516
0
    uint64_t mask2 = mask1 & FStar_UInt64_eq_mask(f22, mh);
517
0
    uint64_t mask3 = mask2 & FStar_UInt64_eq_mask(f12, mh);
518
0
    uint64_t mask4 = mask3 & ~~FStar_UInt64_gte_mask(f02, ml);
519
0
    uint64_t ph = mask4 & mh;
520
0
    uint64_t pl = mask4 & ml;
521
0
    uint64_t o0 = f02 - pl;
522
0
    uint64_t o1 = f12 - ph;
523
0
    uint64_t o2 = f22 - ph;
524
0
    uint64_t o3 = f32 - ph;
525
0
    uint64_t o4 = f42 - ph;
526
0
    uint64_t f011 = o0;
527
0
    uint64_t f111 = o1;
528
0
    uint64_t f211 = o2;
529
0
    uint64_t f311 = o3;
530
0
    uint64_t f411 = o4;
531
0
    acc[0U] = f011;
532
0
    acc[1U] = f111;
533
0
    acc[2U] = f211;
534
0
    acc[3U] = f311;
535
0
    acc[4U] = f411;
536
0
    uint64_t f00 = acc[0U];
537
0
    uint64_t f1 = acc[1U];
538
0
    uint64_t f2 = acc[2U];
539
0
    uint64_t f3 = acc[3U];
540
0
    uint64_t f4 = acc[4U];
541
0
    uint64_t f01 = f00;
542
0
    uint64_t f112 = f1;
543
0
    uint64_t f212 = f2;
544
0
    uint64_t f312 = f3;
545
0
    uint64_t f41 = f4;
546
0
    uint64_t lo = (f01 | f112 << (uint32_t)26U) | f212 << (uint32_t)52U;
547
0
    uint64_t hi = (f212 >> (uint32_t)12U | f312 << (uint32_t)14U) | f41 << (uint32_t)40U;
548
0
    uint64_t f10 = lo;
549
0
    uint64_t f11 = hi;
550
0
    uint64_t u0 = load64_le(ks);
551
0
    uint64_t lo0 = u0;
552
0
    uint64_t u = load64_le(ks + (uint32_t)8U);
553
0
    uint64_t hi0 = u;
554
0
    uint64_t f20 = lo0;
555
0
    uint64_t f21 = hi0;
556
0
    uint64_t r0 = f10 + f20;
557
0
    uint64_t r1 = f11 + f21;
558
0
    uint64_t c = (r0 ^ ((r0 ^ f20) | ((r0 - f20) ^ f20))) >> (uint32_t)63U;
559
0
    uint64_t r11 = r1 + c;
560
0
    uint64_t f30 = r0;
561
0
    uint64_t f31 = r11;
562
0
    store64_le(tag, f30);
563
0
    store64_le(tag + (uint32_t)8U, f31);
564
0
}
565
566
void
567
Hacl_Poly1305_32_poly1305_mac(uint8_t *tag, uint32_t len, uint8_t *text, uint8_t *key)
568
0
{
569
0
    uint64_t ctx[25U] = { 0U };
570
0
    Hacl_Poly1305_32_poly1305_init(ctx, key);
571
0
    Hacl_Poly1305_32_poly1305_update(ctx, len, text);
572
0
    Hacl_Poly1305_32_poly1305_finish(tag, key, ctx);
573
0
}