Mercurial > trustbridge > nss-cmake-static

annotate nss/lib/freebl/poly1305/poly1305.c @ 4:b513267f632f tip

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Build DBM module
author Andre Heinecke <andre.heinecke@intevation.de>
date Tue, 05 Aug 2014 18:58:03 +0200
parents 1e5118fa0cb1
children
rev   line source
0
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
1 /* This Source Code Form is subject to the terms of the Mozilla Public
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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2 * License, v. 2.0. If a copy of the MPL was not distributed with this
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3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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4
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5 /* This implementation of poly1305 is by Andrew Moon
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6 * (https://github.com/floodyberry/poly1305-donna) and released as public
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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7 * domain. */
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8
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9 #include <string.h>
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10 #include <stdint.h>
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11
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12 #include "poly1305.h"
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13
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14 #if defined(NSS_X86) || defined(NSS_X64)
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15 /* We can assume little-endian. */
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16 static uint32_t U8TO32_LE(const unsigned char *m) {
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17 uint32_t r;
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18 memcpy(&r, m, sizeof(r));
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19 return r;
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20 }
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21
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22 static void U32TO8_LE(unsigned char *m, uint32_t v) {
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23 memcpy(m, &v, sizeof(v));
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24 }
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25 #else
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26 static uint32_t U8TO32_LE(const unsigned char *m) {
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27 return (uint32_t)m[0] |
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28 (uint32_t)m[1] << 8 |
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29 (uint32_t)m[2] << 16 |
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30 (uint32_t)m[3] << 24;
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31 }
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32
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33 static void U32TO8_LE(unsigned char *m, uint32_t v) {
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34 m[0] = v;
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35 m[1] = v >> 8;
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36 m[2] = v >> 16;
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37 m[3] = v >> 24;
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38 }
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39 #endif
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40
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41 static uint64_t
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42 mul32x32_64(uint32_t a, uint32_t b) {
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43 return (uint64_t)a * b;
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44 }
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45
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46 struct poly1305_state_st {
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47 uint32_t r0,r1,r2,r3,r4;
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48 uint32_t s1,s2,s3,s4;
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49 uint32_t h0,h1,h2,h3,h4;
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50 unsigned char buf[16];
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51 unsigned int buf_used;
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52 unsigned char key[16];
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53 };
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54
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55 /* update updates |state| given some amount of input data. This function may
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56 * only be called with a |len| that is not a multiple of 16 at the end of the
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57 * data. Otherwise the input must be buffered into 16 byte blocks. */
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58 static void update(struct poly1305_state_st *state, const unsigned char *in,
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59 size_t len) {
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60 uint32_t t0,t1,t2,t3;
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61 uint64_t t[5];
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62 uint32_t b;
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63 uint64_t c;
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64 size_t j;
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65 unsigned char mp[16];
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66
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67 if (len < 16)
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68 goto poly1305_donna_atmost15bytes;
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69
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70 poly1305_donna_16bytes:
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71 t0 = U8TO32_LE(in);
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72 t1 = U8TO32_LE(in+4);
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73 t2 = U8TO32_LE(in+8);
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74 t3 = U8TO32_LE(in+12);
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75
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76 in += 16;
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77 len -= 16;
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78
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79 state->h0 += t0 & 0x3ffffff;
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80 state->h1 += ((((uint64_t)t1 << 32) | t0) >> 26) & 0x3ffffff;
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81 state->h2 += ((((uint64_t)t2 << 32) | t1) >> 20) & 0x3ffffff;
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82 state->h3 += ((((uint64_t)t3 << 32) | t2) >> 14) & 0x3ffffff;
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83 state->h4 += (t3 >> 8) | (1 << 24);
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84
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85 poly1305_donna_mul:
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86 t[0] = mul32x32_64(state->h0,state->r0) +
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87 mul32x32_64(state->h1,state->s4) +
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88 mul32x32_64(state->h2,state->s3) +
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89 mul32x32_64(state->h3,state->s2) +
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90 mul32x32_64(state->h4,state->s1);
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91 t[1] = mul32x32_64(state->h0,state->r1) +
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92 mul32x32_64(state->h1,state->r0) +
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93 mul32x32_64(state->h2,state->s4) +
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94 mul32x32_64(state->h3,state->s3) +
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Andre Heinecke <andre.heinecke@intevation.de>
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95 mul32x32_64(state->h4,state->s2);
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96 t[2] = mul32x32_64(state->h0,state->r2) +
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97 mul32x32_64(state->h1,state->r1) +
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98 mul32x32_64(state->h2,state->r0) +
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99 mul32x32_64(state->h3,state->s4) +
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Andre Heinecke <andre.heinecke@intevation.de>
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100 mul32x32_64(state->h4,state->s3);
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101 t[3] = mul32x32_64(state->h0,state->r3) +
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102 mul32x32_64(state->h1,state->r2) +
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103 mul32x32_64(state->h2,state->r1) +
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104 mul32x32_64(state->h3,state->r0) +
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diff changeset
105 mul32x32_64(state->h4,state->s4);
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diff changeset
106 t[4] = mul32x32_64(state->h0,state->r4) +
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107 mul32x32_64(state->h1,state->r3) +
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108 mul32x32_64(state->h2,state->r2) +
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diff changeset
109 mul32x32_64(state->h3,state->r1) +
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diff changeset
110 mul32x32_64(state->h4,state->r0);
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diff changeset
111
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diff changeset
112 state->h0 = (uint32_t)t[0] & 0x3ffffff; c = (t[0] >> 26);
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diff changeset
113 t[1] += c; state->h1 = (uint32_t)t[1] & 0x3ffffff; b = (uint32_t)(t[1] >> 26);
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diff changeset
114 t[2] += b; state->h2 = (uint32_t)t[2] & 0x3ffffff; b = (uint32_t)(t[2] >> 26);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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diff changeset
115 t[3] += b; state->h3 = (uint32_t)t[3] & 0x3ffffff; b = (uint32_t)(t[3] >> 26);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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parents:
diff changeset
116 t[4] += b; state->h4 = (uint32_t)t[4] & 0x3ffffff; b = (uint32_t)(t[4] >> 26);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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diff changeset
117 state->h0 += b * 5;
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118
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119 if (len >= 16)
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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120 goto poly1305_donna_16bytes;
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121
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122 /* final bytes */
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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parents:
diff changeset
123 poly1305_donna_atmost15bytes:
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
124 if (!len)
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
125 return;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
126
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
127 for (j = 0; j < len; j++)
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
128 mp[j] = in[j];
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
129 mp[j++] = 1;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
130 for (; j < 16; j++)
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
131 mp[j] = 0;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
132 len = 0;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
133
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
134 t0 = U8TO32_LE(mp+0);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
135 t1 = U8TO32_LE(mp+4);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
136 t2 = U8TO32_LE(mp+8);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
137 t3 = U8TO32_LE(mp+12);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
138
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
139 state->h0 += t0 & 0x3ffffff;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
140 state->h1 += ((((uint64_t)t1 << 32) | t0) >> 26) & 0x3ffffff;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
141 state->h2 += ((((uint64_t)t2 << 32) | t1) >> 20) & 0x3ffffff;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
142 state->h3 += ((((uint64_t)t3 << 32) | t2) >> 14) & 0x3ffffff;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
143 state->h4 += (t3 >> 8);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
144
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
145 goto poly1305_donna_mul;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
146 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
147
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
148 void Poly1305Init(poly1305_state *statep, const unsigned char key[32]) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
149 struct poly1305_state_st *state = (struct poly1305_state_st*) statep;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
150 uint32_t t0,t1,t2,t3;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
151
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
152 t0 = U8TO32_LE(key+0);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
153 t1 = U8TO32_LE(key+4);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
154 t2 = U8TO32_LE(key+8);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
155 t3 = U8TO32_LE(key+12);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
156
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
157 /* precompute multipliers */
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
158 state->r0 = t0 & 0x3ffffff; t0 >>= 26; t0 |= t1 << 6;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
159 state->r1 = t0 & 0x3ffff03; t1 >>= 20; t1 |= t2 << 12;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
160 state->r2 = t1 & 0x3ffc0ff; t2 >>= 14; t2 |= t3 << 18;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
161 state->r3 = t2 & 0x3f03fff; t3 >>= 8;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
162 state->r4 = t3 & 0x00fffff;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
163
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
164 state->s1 = state->r1 * 5;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
165 state->s2 = state->r2 * 5;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
166 state->s3 = state->r3 * 5;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
167 state->s4 = state->r4 * 5;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
168
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
169 /* init state */
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
170 state->h0 = 0;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
171 state->h1 = 0;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
172 state->h2 = 0;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
173 state->h3 = 0;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
174 state->h4 = 0;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
175
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
176 state->buf_used = 0;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
177 memcpy(state->key, key + 16, sizeof(state->key));
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
178 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
179
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
180 void Poly1305Update(poly1305_state *statep, const unsigned char *in,
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
181 size_t in_len) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
182 unsigned int i;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
183 struct poly1305_state_st *state = (struct poly1305_state_st*) statep;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
184
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
185 if (state->buf_used) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
186 unsigned int todo = 16 - state->buf_used;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
187 if (todo > in_len)
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
188 todo = in_len;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
189 for (i = 0; i < todo; i++)
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
190 state->buf[state->buf_used + i] = in[i];
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
191 state->buf_used += todo;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
192 in_len -= todo;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
193 in += todo;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
194
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
195 if (state->buf_used == 16) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
196 update(state, state->buf, 16);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
197 state->buf_used = 0;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
198 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
199 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
200
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
201 if (in_len >= 16) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
202 size_t todo = in_len & ~0xf;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
203 update(state, in, todo);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
204 in += todo;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
205 in_len &= 0xf;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
206 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
207
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
208 if (in_len) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
209 for (i = 0; i < in_len; i++)
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
210 state->buf[i] = in[i];
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
211 state->buf_used = in_len;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
212 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
213 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
214
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
215 void Poly1305Finish(poly1305_state *statep, unsigned char mac[16]) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
216 struct poly1305_state_st *state = (struct poly1305_state_st*) statep;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
217 uint64_t f0,f1,f2,f3;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
218 uint32_t g0,g1,g2,g3,g4;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
219 uint32_t b, nb;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
220
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
221 if (state->buf_used)
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
222 update(state, state->buf, state->buf_used);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
223
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
224 b = state->h0 >> 26; state->h0 = state->h0 & 0x3ffffff;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
225 state->h1 += b; b = state->h1 >> 26; state->h1 = state->h1 & 0x3ffffff;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
226 state->h2 += b; b = state->h2 >> 26; state->h2 = state->h2 & 0x3ffffff;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
227 state->h3 += b; b = state->h3 >> 26; state->h3 = state->h3 & 0x3ffffff;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
228 state->h4 += b; b = state->h4 >> 26; state->h4 = state->h4 & 0x3ffffff;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
229 state->h0 += b * 5;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
230
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
231 g0 = state->h0 + 5; b = g0 >> 26; g0 &= 0x3ffffff;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
232 g1 = state->h1 + b; b = g1 >> 26; g1 &= 0x3ffffff;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
233 g2 = state->h2 + b; b = g2 >> 26; g2 &= 0x3ffffff;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
234 g3 = state->h3 + b; b = g3 >> 26; g3 &= 0x3ffffff;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
235 g4 = state->h4 + b - (1 << 26);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
236
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
237 b = (g4 >> 31) - 1;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
238 nb = ~b;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
239 state->h0 = (state->h0 & nb) | (g0 & b);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
240 state->h1 = (state->h1 & nb) | (g1 & b);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
241 state->h2 = (state->h2 & nb) | (g2 & b);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
242 state->h3 = (state->h3 & nb) | (g3 & b);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
243 state->h4 = (state->h4 & nb) | (g4 & b);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
244
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
245 f0 = ((state->h0 ) | (state->h1 << 26)) + (uint64_t)U8TO32_LE(&state->key[0]);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
246 f1 = ((state->h1 >> 6) | (state->h2 << 20)) + (uint64_t)U8TO32_LE(&state->key[4]);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
247 f2 = ((state->h2 >> 12) | (state->h3 << 14)) + (uint64_t)U8TO32_LE(&state->key[8]);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
248 f3 = ((state->h3 >> 18) | (state->h4 << 8)) + (uint64_t)U8TO32_LE(&state->key[12]);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
249
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
250 U32TO8_LE(&mac[ 0], f0); f1 += (f0 >> 32);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
251 U32TO8_LE(&mac[ 4], f1); f2 += (f1 >> 32);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
252 U32TO8_LE(&mac[ 8], f2); f3 += (f2 >> 32);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
253 U32TO8_LE(&mac[12], f3);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
254 }
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