/src/nss/lib/freebl/verified/Hacl_Poly1305_32.c
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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 | } |