1 | (function(nacl) {
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2 | 'use strict';
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3 |
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4 |
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5 |
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6 |
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7 |
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8 |
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9 |
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10 | var gf = function(init) {
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11 | var i, r = new Float64Array(16);
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12 | if (init) for (i = 0; i < init.length; i++) r[i] = init[i];
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13 | return r;
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14 | };
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15 |
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16 |
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17 | var randombytes = function(/* x, n */) { throw new Error('no PRNG'); };
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18 |
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19 | var _0 = new Uint8Array(16);
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20 | var _9 = new Uint8Array(32); _9[0] = 9;
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21 |
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22 | var gf0 = gf(),
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23 | gf1 = gf([1]),
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24 | _121665 = gf([0xdb41, 1]),
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25 | D = gf([0x78a3, 0x1359, 0x4dca, 0x75eb, 0xd8ab, 0x4141, 0x0a4d, 0x0070, 0xe898, 0x7779, 0x4079, 0x8cc7, 0xfe73, 0x2b6f, 0x6cee, 0x5203]),
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26 | D2 = gf([0xf159, 0x26b2, 0x9b94, 0xebd6, 0xb156, 0x8283, 0x149a, 0x00e0, 0xd130, 0xeef3, 0x80f2, 0x198e, 0xfce7, 0x56df, 0xd9dc, 0x2406]),
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27 | X = gf([0xd51a, 0x8f25, 0x2d60, 0xc956, 0xa7b2, 0x9525, 0xc760, 0x692c, 0xdc5c, 0xfdd6, 0xe231, 0xc0a4, 0x53fe, 0xcd6e, 0x36d3, 0x2169]),
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28 | Y = gf([0x6658, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666]),
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29 | I = gf([0xa0b0, 0x4a0e, 0x1b27, 0xc4ee, 0xe478, 0xad2f, 0x1806, 0x2f43, 0xd7a7, 0x3dfb, 0x0099, 0x2b4d, 0xdf0b, 0x4fc1, 0x2480, 0x2b83]);
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30 |
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31 | function ts64(x, i, h, l) {
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32 | x[i] = (h >> 24) & 0xff;
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33 | x[i+1] = (h >> 16) & 0xff;
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34 | x[i+2] = (h >> 8) & 0xff;
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35 | x[i+3] = h & 0xff;
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36 | x[i+4] = (l >> 24) & 0xff;
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37 | x[i+5] = (l >> 16) & 0xff;
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38 | x[i+6] = (l >> 8) & 0xff;
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39 | x[i+7] = l & 0xff;
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40 | }
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41 |
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42 | function vn(x, xi, y, yi, n) {
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43 | var i,d = 0;
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44 | for (i = 0; i < n; i++) d |= x[xi+i]^y[yi+i];
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45 | return (1 & ((d - 1) >>> 8)) - 1;
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46 | }
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47 |
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48 | function crypto_verify_16(x, xi, y, yi) {
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49 | return vn(x,xi,y,yi,16);
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50 | }
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51 |
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52 | function crypto_verify_32(x, xi, y, yi) {
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53 | return vn(x,xi,y,yi,32);
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54 | }
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55 |
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56 | function core_salsa20(o, p, k, c) {
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57 | var j0 = c[ 0] & 0xff | (c[ 1] & 0xff)<<8 | (c[ 2] & 0xff)<<16 | (c[ 3] & 0xff)<<24,
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58 | j1 = k[ 0] & 0xff | (k[ 1] & 0xff)<<8 | (k[ 2] & 0xff)<<16 | (k[ 3] & 0xff)<<24,
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59 | j2 = k[ 4] & 0xff | (k[ 5] & 0xff)<<8 | (k[ 6] & 0xff)<<16 | (k[ 7] & 0xff)<<24,
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60 | j3 = k[ 8] & 0xff | (k[ 9] & 0xff)<<8 | (k[10] & 0xff)<<16 | (k[11] & 0xff)<<24,
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61 | j4 = k[12] & 0xff | (k[13] & 0xff)<<8 | (k[14] & 0xff)<<16 | (k[15] & 0xff)<<24,
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62 | j5 = c[ 4] & 0xff | (c[ 5] & 0xff)<<8 | (c[ 6] & 0xff)<<16 | (c[ 7] & 0xff)<<24,
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63 | j6 = p[ 0] & 0xff | (p[ 1] & 0xff)<<8 | (p[ 2] & 0xff)<<16 | (p[ 3] & 0xff)<<24,
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64 | j7 = p[ 4] & 0xff | (p[ 5] & 0xff)<<8 | (p[ 6] & 0xff)<<16 | (p[ 7] & 0xff)<<24,
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65 | j8 = p[ 8] & 0xff | (p[ 9] & 0xff)<<8 | (p[10] & 0xff)<<16 | (p[11] & 0xff)<<24,
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66 | j9 = p[12] & 0xff | (p[13] & 0xff)<<8 | (p[14] & 0xff)<<16 | (p[15] & 0xff)<<24,
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67 | j10 = c[ 8] & 0xff | (c[ 9] & 0xff)<<8 | (c[10] & 0xff)<<16 | (c[11] & 0xff)<<24,
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68 | j11 = k[16] & 0xff | (k[17] & 0xff)<<8 | (k[18] & 0xff)<<16 | (k[19] & 0xff)<<24,
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69 | j12 = k[20] & 0xff | (k[21] & 0xff)<<8 | (k[22] & 0xff)<<16 | (k[23] & 0xff)<<24,
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70 | j13 = k[24] & 0xff | (k[25] & 0xff)<<8 | (k[26] & 0xff)<<16 | (k[27] & 0xff)<<24,
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71 | j14 = k[28] & 0xff | (k[29] & 0xff)<<8 | (k[30] & 0xff)<<16 | (k[31] & 0xff)<<24,
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72 | j15 = c[12] & 0xff | (c[13] & 0xff)<<8 | (c[14] & 0xff)<<16 | (c[15] & 0xff)<<24;
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73 |
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74 | var x0 = j0, x1 = j1, x2 = j2, x3 = j3, x4 = j4, x5 = j5, x6 = j6, x7 = j7,
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75 | x8 = j8, x9 = j9, x10 = j10, x11 = j11, x12 = j12, x13 = j13, x14 = j14,
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76 | x15 = j15, u;
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77 |
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78 | for (var i = 0; i < 20; i += 2) {
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79 | u = x0 + x12 | 0;
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80 | x4 ^= u<<7 | u>>>(32-7);
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81 | u = x4 + x0 | 0;
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82 | x8 ^= u<<9 | u>>>(32-9);
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83 | u = x8 + x4 | 0;
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84 | x12 ^= u<<13 | u>>>(32-13);
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85 | u = x12 + x8 | 0;
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86 | x0 ^= u<<18 | u>>>(32-18);
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87 |
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88 | u = x5 + x1 | 0;
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89 | x9 ^= u<<7 | u>>>(32-7);
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90 | u = x9 + x5 | 0;
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91 | x13 ^= u<<9 | u>>>(32-9);
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92 | u = x13 + x9 | 0;
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93 | x1 ^= u<<13 | u>>>(32-13);
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94 | u = x1 + x13 | 0;
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95 | x5 ^= u<<18 | u>>>(32-18);
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96 |
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97 | u = x10 + x6 | 0;
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98 | x14 ^= u<<7 | u>>>(32-7);
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99 | u = x14 + x10 | 0;
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100 | x2 ^= u<<9 | u>>>(32-9);
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101 | u = x2 + x14 | 0;
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102 | x6 ^= u<<13 | u>>>(32-13);
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103 | u = x6 + x2 | 0;
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104 | x10 ^= u<<18 | u>>>(32-18);
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105 |
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106 | u = x15 + x11 | 0;
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107 | x3 ^= u<<7 | u>>>(32-7);
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108 | u = x3 + x15 | 0;
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109 | x7 ^= u<<9 | u>>>(32-9);
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110 | u = x7 + x3 | 0;
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111 | x11 ^= u<<13 | u>>>(32-13);
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112 | u = x11 + x7 | 0;
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113 | x15 ^= u<<18 | u>>>(32-18);
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114 |
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115 | u = x0 + x3 | 0;
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116 | x1 ^= u<<7 | u>>>(32-7);
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117 | u = x1 + x0 | 0;
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118 | x2 ^= u<<9 | u>>>(32-9);
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119 | u = x2 + x1 | 0;
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120 | x3 ^= u<<13 | u>>>(32-13);
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121 | u = x3 + x2 | 0;
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122 | x0 ^= u<<18 | u>>>(32-18);
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123 |
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124 | u = x5 + x4 | 0;
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125 | x6 ^= u<<7 | u>>>(32-7);
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126 | u = x6 + x5 | 0;
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127 | x7 ^= u<<9 | u>>>(32-9);
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128 | u = x7 + x6 | 0;
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129 | x4 ^= u<<13 | u>>>(32-13);
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130 | u = x4 + x7 | 0;
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131 | x5 ^= u<<18 | u>>>(32-18);
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132 |
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133 | u = x10 + x9 | 0;
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134 | x11 ^= u<<7 | u>>>(32-7);
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135 | u = x11 + x10 | 0;
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136 | x8 ^= u<<9 | u>>>(32-9);
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137 | u = x8 + x11 | 0;
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138 | x9 ^= u<<13 | u>>>(32-13);
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139 | u = x9 + x8 | 0;
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140 | x10 ^= u<<18 | u>>>(32-18);
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141 |
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142 | u = x15 + x14 | 0;
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143 | x12 ^= u<<7 | u>>>(32-7);
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144 | u = x12 + x15 | 0;
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145 | x13 ^= u<<9 | u>>>(32-9);
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146 | u = x13 + x12 | 0;
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147 | x14 ^= u<<13 | u>>>(32-13);
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148 | u = x14 + x13 | 0;
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149 | x15 ^= u<<18 | u>>>(32-18);
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150 | }
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151 | x0 = x0 + j0 | 0;
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152 | x1 = x1 + j1 | 0;
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153 | x2 = x2 + j2 | 0;
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154 | x3 = x3 + j3 | 0;
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155 | x4 = x4 + j4 | 0;
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156 | x5 = x5 + j5 | 0;
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157 | x6 = x6 + j6 | 0;
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158 | x7 = x7 + j7 | 0;
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159 | x8 = x8 + j8 | 0;
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160 | x9 = x9 + j9 | 0;
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161 | x10 = x10 + j10 | 0;
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162 | x11 = x11 + j11 | 0;
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163 | x12 = x12 + j12 | 0;
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164 | x13 = x13 + j13 | 0;
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165 | x14 = x14 + j14 | 0;
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166 | x15 = x15 + j15 | 0;
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167 |
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168 | o[ 0] = x0 >>> 0 & 0xff;
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169 | o[ 1] = x0 >>> 8 & 0xff;
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170 | o[ 2] = x0 >>> 16 & 0xff;
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171 | o[ 3] = x0 >>> 24 & 0xff;
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172 |
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173 | o[ 4] = x1 >>> 0 & 0xff;
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174 | o[ 5] = x1 >>> 8 & 0xff;
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175 | o[ 6] = x1 >>> 16 & 0xff;
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176 | o[ 7] = x1 >>> 24 & 0xff;
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177 |
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178 | o[ 8] = x2 >>> 0 & 0xff;
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179 | o[ 9] = x2 >>> 8 & 0xff;
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180 | o[10] = x2 >>> 16 & 0xff;
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181 | o[11] = x2 >>> 24 & 0xff;
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182 |
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183 | o[12] = x3 >>> 0 & 0xff;
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184 | o[13] = x3 >>> 8 & 0xff;
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185 | o[14] = x3 >>> 16 & 0xff;
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186 | o[15] = x3 >>> 24 & 0xff;
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187 |
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188 | o[16] = x4 >>> 0 & 0xff;
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189 | o[17] = x4 >>> 8 & 0xff;
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190 | o[18] = x4 >>> 16 & 0xff;
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191 | o[19] = x4 >>> 24 & 0xff;
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192 |
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193 | o[20] = x5 >>> 0 & 0xff;
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194 | o[21] = x5 >>> 8 & 0xff;
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195 | o[22] = x5 >>> 16 & 0xff;
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196 | o[23] = x5 >>> 24 & 0xff;
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197 |
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198 | o[24] = x6 >>> 0 & 0xff;
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199 | o[25] = x6 >>> 8 & 0xff;
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200 | o[26] = x6 >>> 16 & 0xff;
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201 | o[27] = x6 >>> 24 & 0xff;
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202 |
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203 | o[28] = x7 >>> 0 & 0xff;
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204 | o[29] = x7 >>> 8 & 0xff;
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205 | o[30] = x7 >>> 16 & 0xff;
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206 | o[31] = x7 >>> 24 & 0xff;
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207 |
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208 | o[32] = x8 >>> 0 & 0xff;
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209 | o[33] = x8 >>> 8 & 0xff;
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210 | o[34] = x8 >>> 16 & 0xff;
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211 | o[35] = x8 >>> 24 & 0xff;
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212 |
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213 | o[36] = x9 >>> 0 & 0xff;
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214 | o[37] = x9 >>> 8 & 0xff;
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215 | o[38] = x9 >>> 16 & 0xff;
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216 | o[39] = x9 >>> 24 & 0xff;
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217 |
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218 | o[40] = x10 >>> 0 & 0xff;
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219 | o[41] = x10 >>> 8 & 0xff;
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220 | o[42] = x10 >>> 16 & 0xff;
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221 | o[43] = x10 >>> 24 & 0xff;
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222 |
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223 | o[44] = x11 >>> 0 & 0xff;
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224 | o[45] = x11 >>> 8 & 0xff;
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225 | o[46] = x11 >>> 16 & 0xff;
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226 | o[47] = x11 >>> 24 & 0xff;
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227 |
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228 | o[48] = x12 >>> 0 & 0xff;
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229 | o[49] = x12 >>> 8 & 0xff;
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230 | o[50] = x12 >>> 16 & 0xff;
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231 | o[51] = x12 >>> 24 & 0xff;
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232 |
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233 | o[52] = x13 >>> 0 & 0xff;
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234 | o[53] = x13 >>> 8 & 0xff;
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235 | o[54] = x13 >>> 16 & 0xff;
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236 | o[55] = x13 >>> 24 & 0xff;
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237 |
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238 | o[56] = x14 >>> 0 & 0xff;
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239 | o[57] = x14 >>> 8 & 0xff;
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240 | o[58] = x14 >>> 16 & 0xff;
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241 | o[59] = x14 >>> 24 & 0xff;
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242 |
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243 | o[60] = x15 >>> 0 & 0xff;
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244 | o[61] = x15 >>> 8 & 0xff;
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245 | o[62] = x15 >>> 16 & 0xff;
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246 | o[63] = x15 >>> 24 & 0xff;
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247 | }
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248 |
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249 | function core_hsalsa20(o,p,k,c) {
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250 | var j0 = c[ 0] & 0xff | (c[ 1] & 0xff)<<8 | (c[ 2] & 0xff)<<16 | (c[ 3] & 0xff)<<24,
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251 | j1 = k[ 0] & 0xff | (k[ 1] & 0xff)<<8 | (k[ 2] & 0xff)<<16 | (k[ 3] & 0xff)<<24,
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252 | j2 = k[ 4] & 0xff | (k[ 5] & 0xff)<<8 | (k[ 6] & 0xff)<<16 | (k[ 7] & 0xff)<<24,
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253 | j3 = k[ 8] & 0xff | (k[ 9] & 0xff)<<8 | (k[10] & 0xff)<<16 | (k[11] & 0xff)<<24,
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254 | j4 = k[12] & 0xff | (k[13] & 0xff)<<8 | (k[14] & 0xff)<<16 | (k[15] & 0xff)<<24,
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255 | j5 = c[ 4] & 0xff | (c[ 5] & 0xff)<<8 | (c[ 6] & 0xff)<<16 | (c[ 7] & 0xff)<<24,
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256 | j6 = p[ 0] & 0xff | (p[ 1] & 0xff)<<8 | (p[ 2] & 0xff)<<16 | (p[ 3] & 0xff)<<24,
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257 | j7 = p[ 4] & 0xff | (p[ 5] & 0xff)<<8 | (p[ 6] & 0xff)<<16 | (p[ 7] & 0xff)<<24,
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258 | j8 = p[ 8] & 0xff | (p[ 9] & 0xff)<<8 | (p[10] & 0xff)<<16 | (p[11] & 0xff)<<24,
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259 | j9 = p[12] & 0xff | (p[13] & 0xff)<<8 | (p[14] & 0xff)<<16 | (p[15] & 0xff)<<24,
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260 | j10 = c[ 8] & 0xff | (c[ 9] & 0xff)<<8 | (c[10] & 0xff)<<16 | (c[11] & 0xff)<<24,
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261 | j11 = k[16] & 0xff | (k[17] & 0xff)<<8 | (k[18] & 0xff)<<16 | (k[19] & 0xff)<<24,
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262 | j12 = k[20] & 0xff | (k[21] & 0xff)<<8 | (k[22] & 0xff)<<16 | (k[23] & 0xff)<<24,
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263 | j13 = k[24] & 0xff | (k[25] & 0xff)<<8 | (k[26] & 0xff)<<16 | (k[27] & 0xff)<<24,
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264 | j14 = k[28] & 0xff | (k[29] & 0xff)<<8 | (k[30] & 0xff)<<16 | (k[31] & 0xff)<<24,
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265 | j15 = c[12] & 0xff | (c[13] & 0xff)<<8 | (c[14] & 0xff)<<16 | (c[15] & 0xff)<<24;
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266 |
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267 | var x0 = j0, x1 = j1, x2 = j2, x3 = j3, x4 = j4, x5 = j5, x6 = j6, x7 = j7,
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268 | x8 = j8, x9 = j9, x10 = j10, x11 = j11, x12 = j12, x13 = j13, x14 = j14,
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269 | x15 = j15, u;
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270 |
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271 | for (var i = 0; i < 20; i += 2) {
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272 | u = x0 + x12 | 0;
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273 | x4 ^= u<<7 | u>>>(32-7);
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274 | u = x4 + x0 | 0;
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275 | x8 ^= u<<9 | u>>>(32-9);
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276 | u = x8 + x4 | 0;
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277 | x12 ^= u<<13 | u>>>(32-13);
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278 | u = x12 + x8 | 0;
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279 | x0 ^= u<<18 | u>>>(32-18);
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280 |
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281 | u = x5 + x1 | 0;
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282 | x9 ^= u<<7 | u>>>(32-7);
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283 | u = x9 + x5 | 0;
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284 | x13 ^= u<<9 | u>>>(32-9);
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285 | u = x13 + x9 | 0;
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286 | x1 ^= u<<13 | u>>>(32-13);
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287 | u = x1 + x13 | 0;
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288 | x5 ^= u<<18 | u>>>(32-18);
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289 |
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290 | u = x10 + x6 | 0;
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291 | x14 ^= u<<7 | u>>>(32-7);
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292 | u = x14 + x10 | 0;
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293 | x2 ^= u<<9 | u>>>(32-9);
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294 | u = x2 + x14 | 0;
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295 | x6 ^= u<<13 | u>>>(32-13);
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296 | u = x6 + x2 | 0;
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297 | x10 ^= u<<18 | u>>>(32-18);
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298 |
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299 | u = x15 + x11 | 0;
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300 | x3 ^= u<<7 | u>>>(32-7);
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301 | u = x3 + x15 | 0;
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302 | x7 ^= u<<9 | u>>>(32-9);
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303 | u = x7 + x3 | 0;
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304 | x11 ^= u<<13 | u>>>(32-13);
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305 | u = x11 + x7 | 0;
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306 | x15 ^= u<<18 | u>>>(32-18);
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307 |
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308 | u = x0 + x3 | 0;
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309 | x1 ^= u<<7 | u>>>(32-7);
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310 | u = x1 + x0 | 0;
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311 | x2 ^= u<<9 | u>>>(32-9);
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312 | u = x2 + x1 | 0;
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313 | x3 ^= u<<13 | u>>>(32-13);
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314 | u = x3 + x2 | 0;
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315 | x0 ^= u<<18 | u>>>(32-18);
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316 |
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317 | u = x5 + x4 | 0;
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318 | x6 ^= u<<7 | u>>>(32-7);
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319 | u = x6 + x5 | 0;
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320 | x7 ^= u<<9 | u>>>(32-9);
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321 | u = x7 + x6 | 0;
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322 | x4 ^= u<<13 | u>>>(32-13);
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323 | u = x4 + x7 | 0;
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324 | x5 ^= u<<18 | u>>>(32-18);
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325 |
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326 | u = x10 + x9 | 0;
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327 | x11 ^= u<<7 | u>>>(32-7);
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328 | u = x11 + x10 | 0;
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329 | x8 ^= u<<9 | u>>>(32-9);
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330 | u = x8 + x11 | 0;
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331 | x9 ^= u<<13 | u>>>(32-13);
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332 | u = x9 + x8 | 0;
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333 | x10 ^= u<<18 | u>>>(32-18);
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334 |
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335 | u = x15 + x14 | 0;
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336 | x12 ^= u<<7 | u>>>(32-7);
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337 | u = x12 + x15 | 0;
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338 | x13 ^= u<<9 | u>>>(32-9);
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339 | u = x13 + x12 | 0;
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340 | x14 ^= u<<13 | u>>>(32-13);
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341 | u = x14 + x13 | 0;
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342 | x15 ^= u<<18 | u>>>(32-18);
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343 | }
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344 |
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345 | o[ 0] = x0 >>> 0 & 0xff;
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346 | o[ 1] = x0 >>> 8 & 0xff;
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347 | o[ 2] = x0 >>> 16 & 0xff;
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348 | o[ 3] = x0 >>> 24 & 0xff;
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349 |
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350 | o[ 4] = x5 >>> 0 & 0xff;
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351 | o[ 5] = x5 >>> 8 & 0xff;
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352 | o[ 6] = x5 >>> 16 & 0xff;
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353 | o[ 7] = x5 >>> 24 & 0xff;
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354 |
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355 | o[ 8] = x10 >>> 0 & 0xff;
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356 | o[ 9] = x10 >>> 8 & 0xff;
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357 | o[10] = x10 >>> 16 & 0xff;
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358 | o[11] = x10 >>> 24 & 0xff;
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359 |
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360 | o[12] = x15 >>> 0 & 0xff;
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361 | o[13] = x15 >>> 8 & 0xff;
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362 | o[14] = x15 >>> 16 & 0xff;
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363 | o[15] = x15 >>> 24 & 0xff;
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364 |
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365 | o[16] = x6 >>> 0 & 0xff;
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366 | o[17] = x6 >>> 8 & 0xff;
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367 | o[18] = x6 >>> 16 & 0xff;
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368 | o[19] = x6 >>> 24 & 0xff;
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369 |
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370 | o[20] = x7 >>> 0 & 0xff;
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371 | o[21] = x7 >>> 8 & 0xff;
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372 | o[22] = x7 >>> 16 & 0xff;
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373 | o[23] = x7 >>> 24 & 0xff;
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374 |
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375 | o[24] = x8 >>> 0 & 0xff;
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376 | o[25] = x8 >>> 8 & 0xff;
|
377 | o[26] = x8 >>> 16 & 0xff;
|
378 | o[27] = x8 >>> 24 & 0xff;
|
379 |
|
380 | o[28] = x9 >>> 0 & 0xff;
|
381 | o[29] = x9 >>> 8 & 0xff;
|
382 | o[30] = x9 >>> 16 & 0xff;
|
383 | o[31] = x9 >>> 24 & 0xff;
|
384 | }
|
385 |
|
386 | function crypto_core_salsa20(out,inp,k,c) {
|
387 | core_salsa20(out,inp,k,c);
|
388 | }
|
389 |
|
390 | function crypto_core_hsalsa20(out,inp,k,c) {
|
391 | core_hsalsa20(out,inp,k,c);
|
392 | }
|
393 |
|
394 | var sigma = new Uint8Array([101, 120, 112, 97, 110, 100, 32, 51, 50, 45, 98, 121, 116, 101, 32, 107]);
|
395 |
|
396 |
|
397 | function crypto_stream_salsa20_xor(c,cpos,m,mpos,b,n,k) {
|
398 | var z = new Uint8Array(16), x = new Uint8Array(64);
|
399 | var u, i;
|
400 | for (i = 0; i < 16; i++) z[i] = 0;
|
401 | for (i = 0; i < 8; i++) z[i] = n[i];
|
402 | while (b >= 64) {
|
403 | crypto_core_salsa20(x,z,k,sigma);
|
404 | for (i = 0; i < 64; i++) c[cpos+i] = m[mpos+i] ^ x[i];
|
405 | u = 1;
|
406 | for (i = 8; i < 16; i++) {
|
407 | u = u + (z[i] & 0xff) | 0;
|
408 | z[i] = u & 0xff;
|
409 | u >>>= 8;
|
410 | }
|
411 | b -= 64;
|
412 | cpos += 64;
|
413 | mpos += 64;
|
414 | }
|
415 | if (b > 0) {
|
416 | crypto_core_salsa20(x,z,k,sigma);
|
417 | for (i = 0; i < b; i++) c[cpos+i] = m[mpos+i] ^ x[i];
|
418 | }
|
419 | return 0;
|
420 | }
|
421 |
|
422 | function crypto_stream_salsa20(c,cpos,b,n,k) {
|
423 | var z = new Uint8Array(16), x = new Uint8Array(64);
|
424 | var u, i;
|
425 | for (i = 0; i < 16; i++) z[i] = 0;
|
426 | for (i = 0; i < 8; i++) z[i] = n[i];
|
427 | while (b >= 64) {
|
428 | crypto_core_salsa20(x,z,k,sigma);
|
429 | for (i = 0; i < 64; i++) c[cpos+i] = x[i];
|
430 | u = 1;
|
431 | for (i = 8; i < 16; i++) {
|
432 | u = u + (z[i] & 0xff) | 0;
|
433 | z[i] = u & 0xff;
|
434 | u >>>= 8;
|
435 | }
|
436 | b -= 64;
|
437 | cpos += 64;
|
438 | }
|
439 | if (b > 0) {
|
440 | crypto_core_salsa20(x,z,k,sigma);
|
441 | for (i = 0; i < b; i++) c[cpos+i] = x[i];
|
442 | }
|
443 | return 0;
|
444 | }
|
445 |
|
446 | function crypto_stream(c,cpos,d,n,k) {
|
447 | var s = new Uint8Array(32);
|
448 | crypto_core_hsalsa20(s,n,k,sigma);
|
449 | var sn = new Uint8Array(8);
|
450 | for (var i = 0; i < 8; i++) sn[i] = n[i+16];
|
451 | return crypto_stream_salsa20(c,cpos,d,sn,s);
|
452 | }
|
453 |
|
454 | function crypto_stream_xor(c,cpos,m,mpos,d,n,k) {
|
455 | var s = new Uint8Array(32);
|
456 | crypto_core_hsalsa20(s,n,k,sigma);
|
457 | var sn = new Uint8Array(8);
|
458 | for (var i = 0; i < 8; i++) sn[i] = n[i+16];
|
459 | return crypto_stream_salsa20_xor(c,cpos,m,mpos,d,sn,s);
|
460 | }
|
461 |
|
462 |
|
463 |
|
464 |
|
465 |
|
466 |
|
467 | var poly1305 = function(key) {
|
468 | this.buffer = new Uint8Array(16);
|
469 | this.r = new Uint16Array(10);
|
470 | this.h = new Uint16Array(10);
|
471 | this.pad = new Uint16Array(8);
|
472 | this.leftover = 0;
|
473 | this.fin = 0;
|
474 |
|
475 | var t0, t1, t2, t3, t4, t5, t6, t7;
|
476 |
|
477 | t0 = key[ 0] & 0xff | (key[ 1] & 0xff) << 8; this.r[0] = ( t0 ) & 0x1fff;
|
478 | t1 = key[ 2] & 0xff | (key[ 3] & 0xff) << 8; this.r[1] = ((t0 >>> 13) | (t1 << 3)) & 0x1fff;
|
479 | t2 = key[ 4] & 0xff | (key[ 5] & 0xff) << 8; this.r[2] = ((t1 >>> 10) | (t2 << 6)) & 0x1f03;
|
480 | t3 = key[ 6] & 0xff | (key[ 7] & 0xff) << 8; this.r[3] = ((t2 >>> 7) | (t3 << 9)) & 0x1fff;
|
481 | t4 = key[ 8] & 0xff | (key[ 9] & 0xff) << 8; this.r[4] = ((t3 >>> 4) | (t4 << 12)) & 0x00ff;
|
482 | this.r[5] = ((t4 >>> 1)) & 0x1ffe;
|
483 | t5 = key[10] & 0xff | (key[11] & 0xff) << 8; this.r[6] = ((t4 >>> 14) | (t5 << 2)) & 0x1fff;
|
484 | t6 = key[12] & 0xff | (key[13] & 0xff) << 8; this.r[7] = ((t5 >>> 11) | (t6 << 5)) & 0x1f81;
|
485 | t7 = key[14] & 0xff | (key[15] & 0xff) << 8; this.r[8] = ((t6 >>> 8) | (t7 << 8)) & 0x1fff;
|
486 | this.r[9] = ((t7 >>> 5)) & 0x007f;
|
487 |
|
488 | this.pad[0] = key[16] & 0xff | (key[17] & 0xff) << 8;
|
489 | this.pad[1] = key[18] & 0xff | (key[19] & 0xff) << 8;
|
490 | this.pad[2] = key[20] & 0xff | (key[21] & 0xff) << 8;
|
491 | this.pad[3] = key[22] & 0xff | (key[23] & 0xff) << 8;
|
492 | this.pad[4] = key[24] & 0xff | (key[25] & 0xff) << 8;
|
493 | this.pad[5] = key[26] & 0xff | (key[27] & 0xff) << 8;
|
494 | this.pad[6] = key[28] & 0xff | (key[29] & 0xff) << 8;
|
495 | this.pad[7] = key[30] & 0xff | (key[31] & 0xff) << 8;
|
496 | };
|
497 |
|
498 | poly1305.prototype.blocks = function(m, mpos, bytes) {
|
499 | var hibit = this.fin ? 0 : (1 << 11);
|
500 | var t0, t1, t2, t3, t4, t5, t6, t7, c;
|
501 | var d0, d1, d2, d3, d4, d5, d6, d7, d8, d9;
|
502 |
|
503 | var h0 = this.h[0],
|
504 | h1 = this.h[1],
|
505 | h2 = this.h[2],
|
506 | h3 = this.h[3],
|
507 | h4 = this.h[4],
|
508 | h5 = this.h[5],
|
509 | h6 = this.h[6],
|
510 | h7 = this.h[7],
|
511 | h8 = this.h[8],
|
512 | h9 = this.h[9];
|
513 |
|
514 | var r0 = this.r[0],
|
515 | r1 = this.r[1],
|
516 | r2 = this.r[2],
|
517 | r3 = this.r[3],
|
518 | r4 = this.r[4],
|
519 | r5 = this.r[5],
|
520 | r6 = this.r[6],
|
521 | r7 = this.r[7],
|
522 | r8 = this.r[8],
|
523 | r9 = this.r[9];
|
524 |
|
525 | while (bytes >= 16) {
|
526 | t0 = m[mpos+ 0] & 0xff | (m[mpos+ 1] & 0xff) << 8; h0 += ( t0 ) & 0x1fff;
|
527 | t1 = m[mpos+ 2] & 0xff | (m[mpos+ 3] & 0xff) << 8; h1 += ((t0 >>> 13) | (t1 << 3)) & 0x1fff;
|
528 | t2 = m[mpos+ 4] & 0xff | (m[mpos+ 5] & 0xff) << 8; h2 += ((t1 >>> 10) | (t2 << 6)) & 0x1fff;
|
529 | t3 = m[mpos+ 6] & 0xff | (m[mpos+ 7] & 0xff) << 8; h3 += ((t2 >>> 7) | (t3 << 9)) & 0x1fff;
|
530 | t4 = m[mpos+ 8] & 0xff | (m[mpos+ 9] & 0xff) << 8; h4 += ((t3 >>> 4) | (t4 << 12)) & 0x1fff;
|
531 | h5 += ((t4 >>> 1)) & 0x1fff;
|
532 | t5 = m[mpos+10] & 0xff | (m[mpos+11] & 0xff) << 8; h6 += ((t4 >>> 14) | (t5 << 2)) & 0x1fff;
|
533 | t6 = m[mpos+12] & 0xff | (m[mpos+13] & 0xff) << 8; h7 += ((t5 >>> 11) | (t6 << 5)) & 0x1fff;
|
534 | t7 = m[mpos+14] & 0xff | (m[mpos+15] & 0xff) << 8; h8 += ((t6 >>> 8) | (t7 << 8)) & 0x1fff;
|
535 | h9 += ((t7 >>> 5)) | hibit;
|
536 |
|
537 | c = 0;
|
538 |
|
539 | d0 = c;
|
540 | d0 += h0 * r0;
|
541 | d0 += h1 * (5 * r9);
|
542 | d0 += h2 * (5 * r8);
|
543 | d0 += h3 * (5 * r7);
|
544 | d0 += h4 * (5 * r6);
|
545 | c = (d0 >>> 13); d0 &= 0x1fff;
|
546 | d0 += h5 * (5 * r5);
|
547 | d0 += h6 * (5 * r4);
|
548 | d0 += h7 * (5 * r3);
|
549 | d0 += h8 * (5 * r2);
|
550 | d0 += h9 * (5 * r1);
|
551 | c += (d0 >>> 13); d0 &= 0x1fff;
|
552 |
|
553 | d1 = c;
|
554 | d1 += h0 * r1;
|
555 | d1 += h1 * r0;
|
556 | d1 += h2 * (5 * r9);
|
557 | d1 += h3 * (5 * r8);
|
558 | d1 += h4 * (5 * r7);
|
559 | c = (d1 >>> 13); d1 &= 0x1fff;
|
560 | d1 += h5 * (5 * r6);
|
561 | d1 += h6 * (5 * r5);
|
562 | d1 += h7 * (5 * r4);
|
563 | d1 += h8 * (5 * r3);
|
564 | d1 += h9 * (5 * r2);
|
565 | c += (d1 >>> 13); d1 &= 0x1fff;
|
566 |
|
567 | d2 = c;
|
568 | d2 += h0 * r2;
|
569 | d2 += h1 * r1;
|
570 | d2 += h2 * r0;
|
571 | d2 += h3 * (5 * r9);
|
572 | d2 += h4 * (5 * r8);
|
573 | c = (d2 >>> 13); d2 &= 0x1fff;
|
574 | d2 += h5 * (5 * r7);
|
575 | d2 += h6 * (5 * r6);
|
576 | d2 += h7 * (5 * r5);
|
577 | d2 += h8 * (5 * r4);
|
578 | d2 += h9 * (5 * r3);
|
579 | c += (d2 >>> 13); d2 &= 0x1fff;
|
580 |
|
581 | d3 = c;
|
582 | d3 += h0 * r3;
|
583 | d3 += h1 * r2;
|
584 | d3 += h2 * r1;
|
585 | d3 += h3 * r0;
|
586 | d3 += h4 * (5 * r9);
|
587 | c = (d3 >>> 13); d3 &= 0x1fff;
|
588 | d3 += h5 * (5 * r8);
|
589 | d3 += h6 * (5 * r7);
|
590 | d3 += h7 * (5 * r6);
|
591 | d3 += h8 * (5 * r5);
|
592 | d3 += h9 * (5 * r4);
|
593 | c += (d3 >>> 13); d3 &= 0x1fff;
|
594 |
|
595 | d4 = c;
|
596 | d4 += h0 * r4;
|
597 | d4 += h1 * r3;
|
598 | d4 += h2 * r2;
|
599 | d4 += h3 * r1;
|
600 | d4 += h4 * r0;
|
601 | c = (d4 >>> 13); d4 &= 0x1fff;
|
602 | d4 += h5 * (5 * r9);
|
603 | d4 += h6 * (5 * r8);
|
604 | d4 += h7 * (5 * r7);
|
605 | d4 += h8 * (5 * r6);
|
606 | d4 += h9 * (5 * r5);
|
607 | c += (d4 >>> 13); d4 &= 0x1fff;
|
608 |
|
609 | d5 = c;
|
610 | d5 += h0 * r5;
|
611 | d5 += h1 * r4;
|
612 | d5 += h2 * r3;
|
613 | d5 += h3 * r2;
|
614 | d5 += h4 * r1;
|
615 | c = (d5 >>> 13); d5 &= 0x1fff;
|
616 | d5 += h5 * r0;
|
617 | d5 += h6 * (5 * r9);
|
618 | d5 += h7 * (5 * r8);
|
619 | d5 += h8 * (5 * r7);
|
620 | d5 += h9 * (5 * r6);
|
621 | c += (d5 >>> 13); d5 &= 0x1fff;
|
622 |
|
623 | d6 = c;
|
624 | d6 += h0 * r6;
|
625 | d6 += h1 * r5;
|
626 | d6 += h2 * r4;
|
627 | d6 += h3 * r3;
|
628 | d6 += h4 * r2;
|
629 | c = (d6 >>> 13); d6 &= 0x1fff;
|
630 | d6 += h5 * r1;
|
631 | d6 += h6 * r0;
|
632 | d6 += h7 * (5 * r9);
|
633 | d6 += h8 * (5 * r8);
|
634 | d6 += h9 * (5 * r7);
|
635 | c += (d6 >>> 13); d6 &= 0x1fff;
|
636 |
|
637 | d7 = c;
|
638 | d7 += h0 * r7;
|
639 | d7 += h1 * r6;
|
640 | d7 += h2 * r5;
|
641 | d7 += h3 * r4;
|
642 | d7 += h4 * r3;
|
643 | c = (d7 >>> 13); d7 &= 0x1fff;
|
644 | d7 += h5 * r2;
|
645 | d7 += h6 * r1;
|
646 | d7 += h7 * r0;
|
647 | d7 += h8 * (5 * r9);
|
648 | d7 += h9 * (5 * r8);
|
649 | c += (d7 >>> 13); d7 &= 0x1fff;
|
650 |
|
651 | d8 = c;
|
652 | d8 += h0 * r8;
|
653 | d8 += h1 * r7;
|
654 | d8 += h2 * r6;
|
655 | d8 += h3 * r5;
|
656 | d8 += h4 * r4;
|
657 | c = (d8 >>> 13); d8 &= 0x1fff;
|
658 | d8 += h5 * r3;
|
659 | d8 += h6 * r2;
|
660 | d8 += h7 * r1;
|
661 | d8 += h8 * r0;
|
662 | d8 += h9 * (5 * r9);
|
663 | c += (d8 >>> 13); d8 &= 0x1fff;
|
664 |
|
665 | d9 = c;
|
666 | d9 += h0 * r9;
|
667 | d9 += h1 * r8;
|
668 | d9 += h2 * r7;
|
669 | d9 += h3 * r6;
|
670 | d9 += h4 * r5;
|
671 | c = (d9 >>> 13); d9 &= 0x1fff;
|
672 | d9 += h5 * r4;
|
673 | d9 += h6 * r3;
|
674 | d9 += h7 * r2;
|
675 | d9 += h8 * r1;
|
676 | d9 += h9 * r0;
|
677 | c += (d9 >>> 13); d9 &= 0x1fff;
|
678 |
|
679 | c = (((c << 2) + c)) | 0;
|
680 | c = (c + d0) | 0;
|
681 | d0 = c & 0x1fff;
|
682 | c = (c >>> 13);
|
683 | d1 += c;
|
684 |
|
685 | h0 = d0;
|
686 | h1 = d1;
|
687 | h2 = d2;
|
688 | h3 = d3;
|
689 | h4 = d4;
|
690 | h5 = d5;
|
691 | h6 = d6;
|
692 | h7 = d7;
|
693 | h8 = d8;
|
694 | h9 = d9;
|
695 |
|
696 | mpos += 16;
|
697 | bytes -= 16;
|
698 | }
|
699 | this.h[0] = h0;
|
700 | this.h[1] = h1;
|
701 | this.h[2] = h2;
|
702 | this.h[3] = h3;
|
703 | this.h[4] = h4;
|
704 | this.h[5] = h5;
|
705 | this.h[6] = h6;
|
706 | this.h[7] = h7;
|
707 | this.h[8] = h8;
|
708 | this.h[9] = h9;
|
709 | };
|
710 |
|
711 | poly1305.prototype.finish = function(mac, macpos) {
|
712 | var g = new Uint16Array(10);
|
713 | var c, mask, f, i;
|
714 |
|
715 | if (this.leftover) {
|
716 | i = this.leftover;
|
717 | this.buffer[i++] = 1;
|
718 | for (; i < 16; i++) this.buffer[i] = 0;
|
719 | this.fin = 1;
|
720 | this.blocks(this.buffer, 0, 16);
|
721 | }
|
722 |
|
723 | c = this.h[1] >>> 13;
|
724 | this.h[1] &= 0x1fff;
|
725 | for (i = 2; i < 10; i++) {
|
726 | this.h[i] += c;
|
727 | c = this.h[i] >>> 13;
|
728 | this.h[i] &= 0x1fff;
|
729 | }
|
730 | this.h[0] += (c * 5);
|
731 | c = this.h[0] >>> 13;
|
732 | this.h[0] &= 0x1fff;
|
733 | this.h[1] += c;
|
734 | c = this.h[1] >>> 13;
|
735 | this.h[1] &= 0x1fff;
|
736 | this.h[2] += c;
|
737 |
|
738 | g[0] = this.h[0] + 5;
|
739 | c = g[0] >>> 13;
|
740 | g[0] &= 0x1fff;
|
741 | for (i = 1; i < 10; i++) {
|
742 | g[i] = this.h[i] + c;
|
743 | c = g[i] >>> 13;
|
744 | g[i] &= 0x1fff;
|
745 | }
|
746 | g[9] -= (1 << 13);
|
747 |
|
748 | mask = (c ^ 1) - 1;
|
749 | for (i = 0; i < 10; i++) g[i] &= mask;
|
750 | mask = ~mask;
|
751 | for (i = 0; i < 10; i++) this.h[i] = (this.h[i] & mask) | g[i];
|
752 |
|
753 | this.h[0] = ((this.h[0] ) | (this.h[1] << 13) ) & 0xffff;
|
754 | this.h[1] = ((this.h[1] >>> 3) | (this.h[2] << 10) ) & 0xffff;
|
755 | this.h[2] = ((this.h[2] >>> 6) | (this.h[3] << 7) ) & 0xffff;
|
756 | this.h[3] = ((this.h[3] >>> 9) | (this.h[4] << 4) ) & 0xffff;
|
757 | this.h[4] = ((this.h[4] >>> 12) | (this.h[5] << 1) | (this.h[6] << 14)) & 0xffff;
|
758 | this.h[5] = ((this.h[6] >>> 2) | (this.h[7] << 11) ) & 0xffff;
|
759 | this.h[6] = ((this.h[7] >>> 5) | (this.h[8] << 8) ) & 0xffff;
|
760 | this.h[7] = ((this.h[8] >>> 8) | (this.h[9] << 5) ) & 0xffff;
|
761 |
|
762 | f = this.h[0] + this.pad[0];
|
763 | this.h[0] = f & 0xffff;
|
764 | for (i = 1; i < 8; i++) {
|
765 | f = (((this.h[i] + this.pad[i]) | 0) + (f >>> 16)) | 0;
|
766 | this.h[i] = f & 0xffff;
|
767 | }
|
768 |
|
769 | mac[macpos+ 0] = (this.h[0] >>> 0) & 0xff;
|
770 | mac[macpos+ 1] = (this.h[0] >>> 8) & 0xff;
|
771 | mac[macpos+ 2] = (this.h[1] >>> 0) & 0xff;
|
772 | mac[macpos+ 3] = (this.h[1] >>> 8) & 0xff;
|
773 | mac[macpos+ 4] = (this.h[2] >>> 0) & 0xff;
|
774 | mac[macpos+ 5] = (this.h[2] >>> 8) & 0xff;
|
775 | mac[macpos+ 6] = (this.h[3] >>> 0) & 0xff;
|
776 | mac[macpos+ 7] = (this.h[3] >>> 8) & 0xff;
|
777 | mac[macpos+ 8] = (this.h[4] >>> 0) & 0xff;
|
778 | mac[macpos+ 9] = (this.h[4] >>> 8) & 0xff;
|
779 | mac[macpos+10] = (this.h[5] >>> 0) & 0xff;
|
780 | mac[macpos+11] = (this.h[5] >>> 8) & 0xff;
|
781 | mac[macpos+12] = (this.h[6] >>> 0) & 0xff;
|
782 | mac[macpos+13] = (this.h[6] >>> 8) & 0xff;
|
783 | mac[macpos+14] = (this.h[7] >>> 0) & 0xff;
|
784 | mac[macpos+15] = (this.h[7] >>> 8) & 0xff;
|
785 | };
|
786 |
|
787 | poly1305.prototype.update = function(m, mpos, bytes) {
|
788 | var i, want;
|
789 |
|
790 | if (this.leftover) {
|
791 | want = (16 - this.leftover);
|
792 | if (want > bytes)
|
793 | want = bytes;
|
794 | for (i = 0; i < want; i++)
|
795 | this.buffer[this.leftover + i] = m[mpos+i];
|
796 | bytes -= want;
|
797 | mpos += want;
|
798 | this.leftover += want;
|
799 | if (this.leftover < 16)
|
800 | return;
|
801 | this.blocks(this.buffer, 0, 16);
|
802 | this.leftover = 0;
|
803 | }
|
804 |
|
805 | if (bytes >= 16) {
|
806 | want = bytes - (bytes % 16);
|
807 | this.blocks(m, mpos, want);
|
808 | mpos += want;
|
809 | bytes -= want;
|
810 | }
|
811 |
|
812 | if (bytes) {
|
813 | for (i = 0; i < bytes; i++)
|
814 | this.buffer[this.leftover + i] = m[mpos+i];
|
815 | this.leftover += bytes;
|
816 | }
|
817 | };
|
818 |
|
819 | function crypto_onetimeauth(out, outpos, m, mpos, n, k) {
|
820 | var s = new poly1305(k);
|
821 | s.update(m, mpos, n);
|
822 | s.finish(out, outpos);
|
823 | return 0;
|
824 | }
|
825 |
|
826 | function crypto_onetimeauth_verify(h, hpos, m, mpos, n, k) {
|
827 | var x = new Uint8Array(16);
|
828 | crypto_onetimeauth(x,0,m,mpos,n,k);
|
829 | return crypto_verify_16(h,hpos,x,0);
|
830 | }
|
831 |
|
832 | function crypto_secretbox(c,m,d,n,k) {
|
833 | var i;
|
834 | if (d < 32) return -1;
|
835 | crypto_stream_xor(c,0,m,0,d,n,k);
|
836 | crypto_onetimeauth(c, 16, c, 32, d - 32, c);
|
837 | for (i = 0; i < 16; i++) c[i] = 0;
|
838 | return 0;
|
839 | }
|
840 |
|
841 | function crypto_secretbox_open(m,c,d,n,k) {
|
842 | var i;
|
843 | var x = new Uint8Array(32);
|
844 | if (d < 32) return -1;
|
845 | crypto_stream(x,0,32,n,k);
|
846 | if (crypto_onetimeauth_verify(c, 16,c, 32,d - 32,x) !== 0) return -1;
|
847 | crypto_stream_xor(m,0,c,0,d,n,k);
|
848 | for (i = 0; i < 32; i++) m[i] = 0;
|
849 | return 0;
|
850 | }
|
851 |
|
852 | function set25519(r, a) {
|
853 | var i;
|
854 | for (i = 0; i < 16; i++) r[i] = a[i]|0;
|
855 | }
|
856 |
|
857 | function car25519(o) {
|
858 | var i, v, c = 1;
|
859 | for (i = 0; i < 16; i++) {
|
860 | v = o[i] + c + 65535;
|
861 | c = Math.floor(v / 65536);
|
862 | o[i] = v - c * 65536;
|
863 | }
|
864 | o[0] += c-1 + 37 * (c-1);
|
865 | }
|
866 |
|
867 | function sel25519(p, q, b) {
|
868 | var t, c = ~(b-1);
|
869 | for (var i = 0; i < 16; i++) {
|
870 | t = c & (p[i] ^ q[i]);
|
871 | p[i] ^= t;
|
872 | q[i] ^= t;
|
873 | }
|
874 | }
|
875 |
|
876 | function pack25519(o, n) {
|
877 | var i, j, b;
|
878 | var m = gf(), t = gf();
|
879 | for (i = 0; i < 16; i++) t[i] = n[i];
|
880 | car25519(t);
|
881 | car25519(t);
|
882 | car25519(t);
|
883 | for (j = 0; j < 2; j++) {
|
884 | m[0] = t[0] - 0xffed;
|
885 | for (i = 1; i < 15; i++) {
|
886 | m[i] = t[i] - 0xffff - ((m[i-1]>>16) & 1);
|
887 | m[i-1] &= 0xffff;
|
888 | }
|
889 | m[15] = t[15] - 0x7fff - ((m[14]>>16) & 1);
|
890 | b = (m[15]>>16) & 1;
|
891 | m[14] &= 0xffff;
|
892 | sel25519(t, m, 1-b);
|
893 | }
|
894 | for (i = 0; i < 16; i++) {
|
895 | o[2*i] = t[i] & 0xff;
|
896 | o[2*i+1] = t[i]>>8;
|
897 | }
|
898 | }
|
899 |
|
900 | function neq25519(a, b) {
|
901 | var c = new Uint8Array(32), d = new Uint8Array(32);
|
902 | pack25519(c, a);
|
903 | pack25519(d, b);
|
904 | return crypto_verify_32(c, 0, d, 0);
|
905 | }
|
906 |
|
907 | function par25519(a) {
|
908 | var d = new Uint8Array(32);
|
909 | pack25519(d, a);
|
910 | return d[0] & 1;
|
911 | }
|
912 |
|
913 | function unpack25519(o, n) {
|
914 | var i;
|
915 | for (i = 0; i < 16; i++) o[i] = n[2*i] + (n[2*i+1] << 8);
|
916 | o[15] &= 0x7fff;
|
917 | }
|
918 |
|
919 | function A(o, a, b) {
|
920 | for (var i = 0; i < 16; i++) o[i] = a[i] + b[i];
|
921 | }
|
922 |
|
923 | function Z(o, a, b) {
|
924 | for (var i = 0; i < 16; i++) o[i] = a[i] - b[i];
|
925 | }
|
926 |
|
927 | function M(o, a, b) {
|
928 | var v, c,
|
929 | t0 = 0, t1 = 0, t2 = 0, t3 = 0, t4 = 0, t5 = 0, t6 = 0, t7 = 0,
|
930 | t8 = 0, t9 = 0, t10 = 0, t11 = 0, t12 = 0, t13 = 0, t14 = 0, t15 = 0,
|
931 | t16 = 0, t17 = 0, t18 = 0, t19 = 0, t20 = 0, t21 = 0, t22 = 0, t23 = 0,
|
932 | t24 = 0, t25 = 0, t26 = 0, t27 = 0, t28 = 0, t29 = 0, t30 = 0,
|
933 | b0 = b[0],
|
934 | b1 = b[1],
|
935 | b2 = b[2],
|
936 | b3 = b[3],
|
937 | b4 = b[4],
|
938 | b5 = b[5],
|
939 | b6 = b[6],
|
940 | b7 = b[7],
|
941 | b8 = b[8],
|
942 | b9 = b[9],
|
943 | b10 = b[10],
|
944 | b11 = b[11],
|
945 | b12 = b[12],
|
946 | b13 = b[13],
|
947 | b14 = b[14],
|
948 | b15 = b[15];
|
949 |
|
950 | v = a[0];
|
951 | t0 += v * b0;
|
952 | t1 += v * b1;
|
953 | t2 += v * b2;
|
954 | t3 += v * b3;
|
955 | t4 += v * b4;
|
956 | t5 += v * b5;
|
957 | t6 += v * b6;
|
958 | t7 += v * b7;
|
959 | t8 += v * b8;
|
960 | t9 += v * b9;
|
961 | t10 += v * b10;
|
962 | t11 += v * b11;
|
963 | t12 += v * b12;
|
964 | t13 += v * b13;
|
965 | t14 += v * b14;
|
966 | t15 += v * b15;
|
967 | v = a[1];
|
968 | t1 += v * b0;
|
969 | t2 += v * b1;
|
970 | t3 += v * b2;
|
971 | t4 += v * b3;
|
972 | t5 += v * b4;
|
973 | t6 += v * b5;
|
974 | t7 += v * b6;
|
975 | t8 += v * b7;
|
976 | t9 += v * b8;
|
977 | t10 += v * b9;
|
978 | t11 += v * b10;
|
979 | t12 += v * b11;
|
980 | t13 += v * b12;
|
981 | t14 += v * b13;
|
982 | t15 += v * b14;
|
983 | t16 += v * b15;
|
984 | v = a[2];
|
985 | t2 += v * b0;
|
986 | t3 += v * b1;
|
987 | t4 += v * b2;
|
988 | t5 += v * b3;
|
989 | t6 += v * b4;
|
990 | t7 += v * b5;
|
991 | t8 += v * b6;
|
992 | t9 += v * b7;
|
993 | t10 += v * b8;
|
994 | t11 += v * b9;
|
995 | t12 += v * b10;
|
996 | t13 += v * b11;
|
997 | t14 += v * b12;
|
998 | t15 += v * b13;
|
999 | t16 += v * b14;
|
1000 | t17 += v * b15;
|
1001 | v = a[3];
|
1002 | t3 += v * b0;
|
1003 | t4 += v * b1;
|
1004 | t5 += v * b2;
|
1005 | t6 += v * b3;
|
1006 | t7 += v * b4;
|
1007 | t8 += v * b5;
|
1008 | t9 += v * b6;
|
1009 | t10 += v * b7;
|
1010 | t11 += v * b8;
|
1011 | t12 += v * b9;
|
1012 | t13 += v * b10;
|
1013 | t14 += v * b11;
|
1014 | t15 += v * b12;
|
1015 | t16 += v * b13;
|
1016 | t17 += v * b14;
|
1017 | t18 += v * b15;
|
1018 | v = a[4];
|
1019 | t4 += v * b0;
|
1020 | t5 += v * b1;
|
1021 | t6 += v * b2;
|
1022 | t7 += v * b3;
|
1023 | t8 += v * b4;
|
1024 | t9 += v * b5;
|
1025 | t10 += v * b6;
|
1026 | t11 += v * b7;
|
1027 | t12 += v * b8;
|
1028 | t13 += v * b9;
|
1029 | t14 += v * b10;
|
1030 | t15 += v * b11;
|
1031 | t16 += v * b12;
|
1032 | t17 += v * b13;
|
1033 | t18 += v * b14;
|
1034 | t19 += v * b15;
|
1035 | v = a[5];
|
1036 | t5 += v * b0;
|
1037 | t6 += v * b1;
|
1038 | t7 += v * b2;
|
1039 | t8 += v * b3;
|
1040 | t9 += v * b4;
|
1041 | t10 += v * b5;
|
1042 | t11 += v * b6;
|
1043 | t12 += v * b7;
|
1044 | t13 += v * b8;
|
1045 | t14 += v * b9;
|
1046 | t15 += v * b10;
|
1047 | t16 += v * b11;
|
1048 | t17 += v * b12;
|
1049 | t18 += v * b13;
|
1050 | t19 += v * b14;
|
1051 | t20 += v * b15;
|
1052 | v = a[6];
|
1053 | t6 += v * b0;
|
1054 | t7 += v * b1;
|
1055 | t8 += v * b2;
|
1056 | t9 += v * b3;
|
1057 | t10 += v * b4;
|
1058 | t11 += v * b5;
|
1059 | t12 += v * b6;
|
1060 | t13 += v * b7;
|
1061 | t14 += v * b8;
|
1062 | t15 += v * b9;
|
1063 | t16 += v * b10;
|
1064 | t17 += v * b11;
|
1065 | t18 += v * b12;
|
1066 | t19 += v * b13;
|
1067 | t20 += v * b14;
|
1068 | t21 += v * b15;
|
1069 | v = a[7];
|
1070 | t7 += v * b0;
|
1071 | t8 += v * b1;
|
1072 | t9 += v * b2;
|
1073 | t10 += v * b3;
|
1074 | t11 += v * b4;
|
1075 | t12 += v * b5;
|
1076 | t13 += v * b6;
|
1077 | t14 += v * b7;
|
1078 | t15 += v * b8;
|
1079 | t16 += v * b9;
|
1080 | t17 += v * b10;
|
1081 | t18 += v * b11;
|
1082 | t19 += v * b12;
|
1083 | t20 += v * b13;
|
1084 | t21 += v * b14;
|
1085 | t22 += v * b15;
|
1086 | v = a[8];
|
1087 | t8 += v * b0;
|
1088 | t9 += v * b1;
|
1089 | t10 += v * b2;
|
1090 | t11 += v * b3;
|
1091 | t12 += v * b4;
|
1092 | t13 += v * b5;
|
1093 | t14 += v * b6;
|
1094 | t15 += v * b7;
|
1095 | t16 += v * b8;
|
1096 | t17 += v * b9;
|
1097 | t18 += v * b10;
|
1098 | t19 += v * b11;
|
1099 | t20 += v * b12;
|
1100 | t21 += v * b13;
|
1101 | t22 += v * b14;
|
1102 | t23 += v * b15;
|
1103 | v = a[9];
|
1104 | t9 += v * b0;
|
1105 | t10 += v * b1;
|
1106 | t11 += v * b2;
|
1107 | t12 += v * b3;
|
1108 | t13 += v * b4;
|
1109 | t14 += v * b5;
|
1110 | t15 += v * b6;
|
1111 | t16 += v * b7;
|
1112 | t17 += v * b8;
|
1113 | t18 += v * b9;
|
1114 | t19 += v * b10;
|
1115 | t20 += v * b11;
|
1116 | t21 += v * b12;
|
1117 | t22 += v * b13;
|
1118 | t23 += v * b14;
|
1119 | t24 += v * b15;
|
1120 | v = a[10];
|
1121 | t10 += v * b0;
|
1122 | t11 += v * b1;
|
1123 | t12 += v * b2;
|
1124 | t13 += v * b3;
|
1125 | t14 += v * b4;
|
1126 | t15 += v * b5;
|
1127 | t16 += v * b6;
|
1128 | t17 += v * b7;
|
1129 | t18 += v * b8;
|
1130 | t19 += v * b9;
|
1131 | t20 += v * b10;
|
1132 | t21 += v * b11;
|
1133 | t22 += v * b12;
|
1134 | t23 += v * b13;
|
1135 | t24 += v * b14;
|
1136 | t25 += v * b15;
|
1137 | v = a[11];
|
1138 | t11 += v * b0;
|
1139 | t12 += v * b1;
|
1140 | t13 += v * b2;
|
1141 | t14 += v * b3;
|
1142 | t15 += v * b4;
|
1143 | t16 += v * b5;
|
1144 | t17 += v * b6;
|
1145 | t18 += v * b7;
|
1146 | t19 += v * b8;
|
1147 | t20 += v * b9;
|
1148 | t21 += v * b10;
|
1149 | t22 += v * b11;
|
1150 | t23 += v * b12;
|
1151 | t24 += v * b13;
|
1152 | t25 += v * b14;
|
1153 | t26 += v * b15;
|
1154 | v = a[12];
|
1155 | t12 += v * b0;
|
1156 | t13 += v * b1;
|
1157 | t14 += v * b2;
|
1158 | t15 += v * b3;
|
1159 | t16 += v * b4;
|
1160 | t17 += v * b5;
|
1161 | t18 += v * b6;
|
1162 | t19 += v * b7;
|
1163 | t20 += v * b8;
|
1164 | t21 += v * b9;
|
1165 | t22 += v * b10;
|
1166 | t23 += v * b11;
|
1167 | t24 += v * b12;
|
1168 | t25 += v * b13;
|
1169 | t26 += v * b14;
|
1170 | t27 += v * b15;
|
1171 | v = a[13];
|
1172 | t13 += v * b0;
|
1173 | t14 += v * b1;
|
1174 | t15 += v * b2;
|
1175 | t16 += v * b3;
|
1176 | t17 += v * b4;
|
1177 | t18 += v * b5;
|
1178 | t19 += v * b6;
|
1179 | t20 += v * b7;
|
1180 | t21 += v * b8;
|
1181 | t22 += v * b9;
|
1182 | t23 += v * b10;
|
1183 | t24 += v * b11;
|
1184 | t25 += v * b12;
|
1185 | t26 += v * b13;
|
1186 | t27 += v * b14;
|
1187 | t28 += v * b15;
|
1188 | v = a[14];
|
1189 | t14 += v * b0;
|
1190 | t15 += v * b1;
|
1191 | t16 += v * b2;
|
1192 | t17 += v * b3;
|
1193 | t18 += v * b4;
|
1194 | t19 += v * b5;
|
1195 | t20 += v * b6;
|
1196 | t21 += v * b7;
|
1197 | t22 += v * b8;
|
1198 | t23 += v * b9;
|
1199 | t24 += v * b10;
|
1200 | t25 += v * b11;
|
1201 | t26 += v * b12;
|
1202 | t27 += v * b13;
|
1203 | t28 += v * b14;
|
1204 | t29 += v * b15;
|
1205 | v = a[15];
|
1206 | t15 += v * b0;
|
1207 | t16 += v * b1;
|
1208 | t17 += v * b2;
|
1209 | t18 += v * b3;
|
1210 | t19 += v * b4;
|
1211 | t20 += v * b5;
|
1212 | t21 += v * b6;
|
1213 | t22 += v * b7;
|
1214 | t23 += v * b8;
|
1215 | t24 += v * b9;
|
1216 | t25 += v * b10;
|
1217 | t26 += v * b11;
|
1218 | t27 += v * b12;
|
1219 | t28 += v * b13;
|
1220 | t29 += v * b14;
|
1221 | t30 += v * b15;
|
1222 |
|
1223 | t0 += 38 * t16;
|
1224 | t1 += 38 * t17;
|
1225 | t2 += 38 * t18;
|
1226 | t3 += 38 * t19;
|
1227 | t4 += 38 * t20;
|
1228 | t5 += 38 * t21;
|
1229 | t6 += 38 * t22;
|
1230 | t7 += 38 * t23;
|
1231 | t8 += 38 * t24;
|
1232 | t9 += 38 * t25;
|
1233 | t10 += 38 * t26;
|
1234 | t11 += 38 * t27;
|
1235 | t12 += 38 * t28;
|
1236 | t13 += 38 * t29;
|
1237 | t14 += 38 * t30;
|
1238 |
|
1239 |
|
1240 |
|
1241 | c = 1;
|
1242 | v = t0 + c + 65535; c = Math.floor(v / 65536); t0 = v - c * 65536;
|
1243 | v = t1 + c + 65535; c = Math.floor(v / 65536); t1 = v - c * 65536;
|
1244 | v = t2 + c + 65535; c = Math.floor(v / 65536); t2 = v - c * 65536;
|
1245 | v = t3 + c + 65535; c = Math.floor(v / 65536); t3 = v - c * 65536;
|
1246 | v = t4 + c + 65535; c = Math.floor(v / 65536); t4 = v - c * 65536;
|
1247 | v = t5 + c + 65535; c = Math.floor(v / 65536); t5 = v - c * 65536;
|
1248 | v = t6 + c + 65535; c = Math.floor(v / 65536); t6 = v - c * 65536;
|
1249 | v = t7 + c + 65535; c = Math.floor(v / 65536); t7 = v - c * 65536;
|
1250 | v = t8 + c + 65535; c = Math.floor(v / 65536); t8 = v - c * 65536;
|
1251 | v = t9 + c + 65535; c = Math.floor(v / 65536); t9 = v - c * 65536;
|
1252 | v = t10 + c + 65535; c = Math.floor(v / 65536); t10 = v - c * 65536;
|
1253 | v = t11 + c + 65535; c = Math.floor(v / 65536); t11 = v - c * 65536;
|
1254 | v = t12 + c + 65535; c = Math.floor(v / 65536); t12 = v - c * 65536;
|
1255 | v = t13 + c + 65535; c = Math.floor(v / 65536); t13 = v - c * 65536;
|
1256 | v = t14 + c + 65535; c = Math.floor(v / 65536); t14 = v - c * 65536;
|
1257 | v = t15 + c + 65535; c = Math.floor(v / 65536); t15 = v - c * 65536;
|
1258 | t0 += c-1 + 37 * (c-1);
|
1259 |
|
1260 |
|
1261 | c = 1;
|
1262 | v = t0 + c + 65535; c = Math.floor(v / 65536); t0 = v - c * 65536;
|
1263 | v = t1 + c + 65535; c = Math.floor(v / 65536); t1 = v - c * 65536;
|
1264 | v = t2 + c + 65535; c = Math.floor(v / 65536); t2 = v - c * 65536;
|
1265 | v = t3 + c + 65535; c = Math.floor(v / 65536); t3 = v - c * 65536;
|
1266 | v = t4 + c + 65535; c = Math.floor(v / 65536); t4 = v - c * 65536;
|
1267 | v = t5 + c + 65535; c = Math.floor(v / 65536); t5 = v - c * 65536;
|
1268 | v = t6 + c + 65535; c = Math.floor(v / 65536); t6 = v - c * 65536;
|
1269 | v = t7 + c + 65535; c = Math.floor(v / 65536); t7 = v - c * 65536;
|
1270 | v = t8 + c + 65535; c = Math.floor(v / 65536); t8 = v - c * 65536;
|
1271 | v = t9 + c + 65535; c = Math.floor(v / 65536); t9 = v - c * 65536;
|
1272 | v = t10 + c + 65535; c = Math.floor(v / 65536); t10 = v - c * 65536;
|
1273 | v = t11 + c + 65535; c = Math.floor(v / 65536); t11 = v - c * 65536;
|
1274 | v = t12 + c + 65535; c = Math.floor(v / 65536); t12 = v - c * 65536;
|
1275 | v = t13 + c + 65535; c = Math.floor(v / 65536); t13 = v - c * 65536;
|
1276 | v = t14 + c + 65535; c = Math.floor(v / 65536); t14 = v - c * 65536;
|
1277 | v = t15 + c + 65535; c = Math.floor(v / 65536); t15 = v - c * 65536;
|
1278 | t0 += c-1 + 37 * (c-1);
|
1279 |
|
1280 | o[ 0] = t0;
|
1281 | o[ 1] = t1;
|
1282 | o[ 2] = t2;
|
1283 | o[ 3] = t3;
|
1284 | o[ 4] = t4;
|
1285 | o[ 5] = t5;
|
1286 | o[ 6] = t6;
|
1287 | o[ 7] = t7;
|
1288 | o[ 8] = t8;
|
1289 | o[ 9] = t9;
|
1290 | o[10] = t10;
|
1291 | o[11] = t11;
|
1292 | o[12] = t12;
|
1293 | o[13] = t13;
|
1294 | o[14] = t14;
|
1295 | o[15] = t15;
|
1296 | }
|
1297 |
|
1298 | function S(o, a) {
|
1299 | M(o, a, a);
|
1300 | }
|
1301 |
|
1302 | function inv25519(o, i) {
|
1303 | var c = gf();
|
1304 | var a;
|
1305 | for (a = 0; a < 16; a++) c[a] = i[a];
|
1306 | for (a = 253; a >= 0; a--) {
|
1307 | S(c, c);
|
1308 | if(a !== 2 && a !== 4) M(c, c, i);
|
1309 | }
|
1310 | for (a = 0; a < 16; a++) o[a] = c[a];
|
1311 | }
|
1312 |
|
1313 | function pow2523(o, i) {
|
1314 | var c = gf();
|
1315 | var a;
|
1316 | for (a = 0; a < 16; a++) c[a] = i[a];
|
1317 | for (a = 250; a >= 0; a--) {
|
1318 | S(c, c);
|
1319 | if(a !== 1) M(c, c, i);
|
1320 | }
|
1321 | for (a = 0; a < 16; a++) o[a] = c[a];
|
1322 | }
|
1323 |
|
1324 | function crypto_scalarmult(q, n, p) {
|
1325 | var z = new Uint8Array(32);
|
1326 | var x = new Float64Array(80), r, i;
|
1327 | var a = gf(), b = gf(), c = gf(),
|
1328 | d = gf(), e = gf(), f = gf();
|
1329 | for (i = 0; i < 31; i++) z[i] = n[i];
|
1330 | z[31]=(n[31]&127)|64;
|
1331 | z[0]&=248;
|
1332 | unpack25519(x,p);
|
1333 | for (i = 0; i < 16; i++) {
|
1334 | b[i]=x[i];
|
1335 | d[i]=a[i]=c[i]=0;
|
1336 | }
|
1337 | a[0]=d[0]=1;
|
1338 | for (i=254; i>=0; --i) {
|
1339 | r=(z[i>>>3]>>>(i&7))&1;
|
1340 | sel25519(a,b,r);
|
1341 | sel25519(c,d,r);
|
1342 | A(e,a,c);
|
1343 | Z(a,a,c);
|
1344 | A(c,b,d);
|
1345 | Z(b,b,d);
|
1346 | S(d,e);
|
1347 | S(f,a);
|
1348 | M(a,c,a);
|
1349 | M(c,b,e);
|
1350 | A(e,a,c);
|
1351 | Z(a,a,c);
|
1352 | S(b,a);
|
1353 | Z(c,d,f);
|
1354 | M(a,c,_121665);
|
1355 | A(a,a,d);
|
1356 | M(c,c,a);
|
1357 | M(a,d,f);
|
1358 | M(d,b,x);
|
1359 | S(b,e);
|
1360 | sel25519(a,b,r);
|
1361 | sel25519(c,d,r);
|
1362 | }
|
1363 | for (i = 0; i < 16; i++) {
|
1364 | x[i+16]=a[i];
|
1365 | x[i+32]=c[i];
|
1366 | x[i+48]=b[i];
|
1367 | x[i+64]=d[i];
|
1368 | }
|
1369 | var x32 = x.subarray(32);
|
1370 | var x16 = x.subarray(16);
|
1371 | inv25519(x32,x32);
|
1372 | M(x16,x16,x32);
|
1373 | pack25519(q,x16);
|
1374 | return 0;
|
1375 | }
|
1376 |
|
1377 | function crypto_scalarmult_base(q, n) {
|
1378 | return crypto_scalarmult(q, n, _9);
|
1379 | }
|
1380 |
|
1381 | function crypto_box_keypair(y, x) {
|
1382 | randombytes(x, 32);
|
1383 | return crypto_scalarmult_base(y, x);
|
1384 | }
|
1385 |
|
1386 | function crypto_box_beforenm(k, y, x) {
|
1387 | var s = new Uint8Array(32);
|
1388 | crypto_scalarmult(s, x, y);
|
1389 | return crypto_core_hsalsa20(k, _0, s, sigma);
|
1390 | }
|
1391 |
|
1392 | var crypto_box_afternm = crypto_secretbox;
|
1393 | var crypto_box_open_afternm = crypto_secretbox_open;
|
1394 |
|
1395 | function crypto_box(c, m, d, n, y, x) {
|
1396 | var k = new Uint8Array(32);
|
1397 | crypto_box_beforenm(k, y, x);
|
1398 | return crypto_box_afternm(c, m, d, n, k);
|
1399 | }
|
1400 |
|
1401 | function crypto_box_open(m, c, d, n, y, x) {
|
1402 | var k = new Uint8Array(32);
|
1403 | crypto_box_beforenm(k, y, x);
|
1404 | return crypto_box_open_afternm(m, c, d, n, k);
|
1405 | }
|
1406 |
|
1407 | var K = [
|
1408 | 0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd,
|
1409 | 0xb5c0fbcf, 0xec4d3b2f, 0xe9b5dba5, 0x8189dbbc,
|
1410 | 0x3956c25b, 0xf348b538, 0x59f111f1, 0xb605d019,
|
1411 | 0x923f82a4, 0xaf194f9b, 0xab1c5ed5, 0xda6d8118,
|
1412 | 0xd807aa98, 0xa3030242, 0x12835b01, 0x45706fbe,
|
1413 | 0x243185be, 0x4ee4b28c, 0x550c7dc3, 0xd5ffb4e2,
|
1414 | 0x72be5d74, 0xf27b896f, 0x80deb1fe, 0x3b1696b1,
|
1415 | 0x9bdc06a7, 0x25c71235, 0xc19bf174, 0xcf692694,
|
1416 | 0xe49b69c1, 0x9ef14ad2, 0xefbe4786, 0x384f25e3,
|
1417 | 0x0fc19dc6, 0x8b8cd5b5, 0x240ca1cc, 0x77ac9c65,
|
1418 | 0x2de92c6f, 0x592b0275, 0x4a7484aa, 0x6ea6e483,
|
1419 | 0x5cb0a9dc, 0xbd41fbd4, 0x76f988da, 0x831153b5,
|
1420 | 0x983e5152, 0xee66dfab, 0xa831c66d, 0x2db43210,
|
1421 | 0xb00327c8, 0x98fb213f, 0xbf597fc7, 0xbeef0ee4,
|
1422 | 0xc6e00bf3, 0x3da88fc2, 0xd5a79147, 0x930aa725,
|
1423 | 0x06ca6351, 0xe003826f, 0x14292967, 0x0a0e6e70,
|
1424 | 0x27b70a85, 0x46d22ffc, 0x2e1b2138, 0x5c26c926,
|
1425 | 0x4d2c6dfc, 0x5ac42aed, 0x53380d13, 0x9d95b3df,
|
1426 | 0x650a7354, 0x8baf63de, 0x766a0abb, 0x3c77b2a8,
|
1427 | 0x81c2c92e, 0x47edaee6, 0x92722c85, 0x1482353b,
|
1428 | 0xa2bfe8a1, 0x4cf10364, 0xa81a664b, 0xbc423001,
|
1429 | 0xc24b8b70, 0xd0f89791, 0xc76c51a3, 0x0654be30,
|
1430 | 0xd192e819, 0xd6ef5218, 0xd6990624, 0x5565a910,
|
1431 | 0xf40e3585, 0x5771202a, 0x106aa070, 0x32bbd1b8,
|
1432 | 0x19a4c116, 0xb8d2d0c8, 0x1e376c08, 0x5141ab53,
|
1433 | 0x2748774c, 0xdf8eeb99, 0x34b0bcb5, 0xe19b48a8,
|
1434 | 0x391c0cb3, 0xc5c95a63, 0x4ed8aa4a, 0xe3418acb,
|
1435 | 0x5b9cca4f, 0x7763e373, 0x682e6ff3, 0xd6b2b8a3,
|
1436 | 0x748f82ee, 0x5defb2fc, 0x78a5636f, 0x43172f60,
|
1437 | 0x84c87814, 0xa1f0ab72, 0x8cc70208, 0x1a6439ec,
|
1438 | 0x90befffa, 0x23631e28, 0xa4506ceb, 0xde82bde9,
|
1439 | 0xbef9a3f7, 0xb2c67915, 0xc67178f2, 0xe372532b,
|
1440 | 0xca273ece, 0xea26619c, 0xd186b8c7, 0x21c0c207,
|
1441 | 0xeada7dd6, 0xcde0eb1e, 0xf57d4f7f, 0xee6ed178,
|
1442 | 0x06f067aa, 0x72176fba, 0x0a637dc5, 0xa2c898a6,
|
1443 | 0x113f9804, 0xbef90dae, 0x1b710b35, 0x131c471b,
|
1444 | 0x28db77f5, 0x23047d84, 0x32caab7b, 0x40c72493,
|
1445 | 0x3c9ebe0a, 0x15c9bebc, 0x431d67c4, 0x9c100d4c,
|
1446 | 0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a,
|
1447 | 0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 0x4a475817
|
1448 | ];
|
1449 |
|
1450 | function crypto_hashblocks_hl(hh, hl, m, n) {
|
1451 | var wh = new Int32Array(16), wl = new Int32Array(16),
|
1452 | bh0, bh1, bh2, bh3, bh4, bh5, bh6, bh7,
|
1453 | bl0, bl1, bl2, bl3, bl4, bl5, bl6, bl7,
|
1454 | th, tl, i, j, h, l, a, b, c, d;
|
1455 |
|
1456 | var ah0 = hh[0],
|
1457 | ah1 = hh[1],
|
1458 | ah2 = hh[2],
|
1459 | ah3 = hh[3],
|
1460 | ah4 = hh[4],
|
1461 | ah5 = hh[5],
|
1462 | ah6 = hh[6],
|
1463 | ah7 = hh[7],
|
1464 |
|
1465 | al0 = hl[0],
|
1466 | al1 = hl[1],
|
1467 | al2 = hl[2],
|
1468 | al3 = hl[3],
|
1469 | al4 = hl[4],
|
1470 | al5 = hl[5],
|
1471 | al6 = hl[6],
|
1472 | al7 = hl[7];
|
1473 |
|
1474 | var pos = 0;
|
1475 | while (n >= 128) {
|
1476 | for (i = 0; i < 16; i++) {
|
1477 | j = 8 * i + pos;
|
1478 | wh[i] = (m[j+0] << 24) | (m[j+1] << 16) | (m[j+2] << 8) | m[j+3];
|
1479 | wl[i] = (m[j+4] << 24) | (m[j+5] << 16) | (m[j+6] << 8) | m[j+7];
|
1480 | }
|
1481 | for (i = 0; i < 80; i++) {
|
1482 | bh0 = ah0;
|
1483 | bh1 = ah1;
|
1484 | bh2 = ah2;
|
1485 | bh3 = ah3;
|
1486 | bh4 = ah4;
|
1487 | bh5 = ah5;
|
1488 | bh6 = ah6;
|
1489 | bh7 = ah7;
|
1490 |
|
1491 | bl0 = al0;
|
1492 | bl1 = al1;
|
1493 | bl2 = al2;
|
1494 | bl3 = al3;
|
1495 | bl4 = al4;
|
1496 | bl5 = al5;
|
1497 | bl6 = al6;
|
1498 | bl7 = al7;
|
1499 |
|
1500 |
|
1501 | h = ah7;
|
1502 | l = al7;
|
1503 |
|
1504 | a = l & 0xffff; b = l >>> 16;
|
1505 | c = h & 0xffff; d = h >>> 16;
|
1506 |
|
1507 |
|
1508 | h = ((ah4 >>> 14) | (al4 << (32-14))) ^ ((ah4 >>> 18) | (al4 << (32-18))) ^ ((al4 >>> (41-32)) | (ah4 << (32-(41-32))));
|
1509 | l = ((al4 >>> 14) | (ah4 << (32-14))) ^ ((al4 >>> 18) | (ah4 << (32-18))) ^ ((ah4 >>> (41-32)) | (al4 << (32-(41-32))));
|
1510 |
|
1511 | a += l & 0xffff; b += l >>> 16;
|
1512 | c += h & 0xffff; d += h >>> 16;
|
1513 |
|
1514 |
|
1515 | h = (ah4 & ah5) ^ (~ah4 & ah6);
|
1516 | l = (al4 & al5) ^ (~al4 & al6);
|
1517 |
|
1518 | a += l & 0xffff; b += l >>> 16;
|
1519 | c += h & 0xffff; d += h >>> 16;
|
1520 |
|
1521 |
|
1522 | h = K[i*2];
|
1523 | l = K[i*2+1];
|
1524 |
|
1525 | a += l & 0xffff; b += l >>> 16;
|
1526 | c += h & 0xffff; d += h >>> 16;
|
1527 |
|
1528 |
|
1529 | h = wh[i%16];
|
1530 | l = wl[i%16];
|
1531 |
|
1532 | a += l & 0xffff; b += l >>> 16;
|
1533 | c += h & 0xffff; d += h >>> 16;
|
1534 |
|
1535 | b += a >>> 16;
|
1536 | c += b >>> 16;
|
1537 | d += c >>> 16;
|
1538 |
|
1539 | th = c & 0xffff | d << 16;
|
1540 | tl = a & 0xffff | b << 16;
|
1541 |
|
1542 |
|
1543 | h = th;
|
1544 | l = tl;
|
1545 |
|
1546 | a = l & 0xffff; b = l >>> 16;
|
1547 | c = h & 0xffff; d = h >>> 16;
|
1548 |
|
1549 |
|
1550 | h = ((ah0 >>> 28) | (al0 << (32-28))) ^ ((al0 >>> (34-32)) | (ah0 << (32-(34-32)))) ^ ((al0 >>> (39-32)) | (ah0 << (32-(39-32))));
|
1551 | l = ((al0 >>> 28) | (ah0 << (32-28))) ^ ((ah0 >>> (34-32)) | (al0 << (32-(34-32)))) ^ ((ah0 >>> (39-32)) | (al0 << (32-(39-32))));
|
1552 |
|
1553 | a += l & 0xffff; b += l >>> 16;
|
1554 | c += h & 0xffff; d += h >>> 16;
|
1555 |
|
1556 |
|
1557 | h = (ah0 & ah1) ^ (ah0 & ah2) ^ (ah1 & ah2);
|
1558 | l = (al0 & al1) ^ (al0 & al2) ^ (al1 & al2);
|
1559 |
|
1560 | a += l & 0xffff; b += l >>> 16;
|
1561 | c += h & 0xffff; d += h >>> 16;
|
1562 |
|
1563 | b += a >>> 16;
|
1564 | c += b >>> 16;
|
1565 | d += c >>> 16;
|
1566 |
|
1567 | bh7 = (c & 0xffff) | (d << 16);
|
1568 | bl7 = (a & 0xffff) | (b << 16);
|
1569 |
|
1570 |
|
1571 | h = bh3;
|
1572 | l = bl3;
|
1573 |
|
1574 | a = l & 0xffff; b = l >>> 16;
|
1575 | c = h & 0xffff; d = h >>> 16;
|
1576 |
|
1577 | h = th;
|
1578 | l = tl;
|
1579 |
|
1580 | a += l & 0xffff; b += l >>> 16;
|
1581 | c += h & 0xffff; d += h >>> 16;
|
1582 |
|
1583 | b += a >>> 16;
|
1584 | c += b >>> 16;
|
1585 | d += c >>> 16;
|
1586 |
|
1587 | bh3 = (c & 0xffff) | (d << 16);
|
1588 | bl3 = (a & 0xffff) | (b << 16);
|
1589 |
|
1590 | ah1 = bh0;
|
1591 | ah2 = bh1;
|
1592 | ah3 = bh2;
|
1593 | ah4 = bh3;
|
1594 | ah5 = bh4;
|
1595 | ah6 = bh5;
|
1596 | ah7 = bh6;
|
1597 | ah0 = bh7;
|
1598 |
|
1599 | al1 = bl0;
|
1600 | al2 = bl1;
|
1601 | al3 = bl2;
|
1602 | al4 = bl3;
|
1603 | al5 = bl4;
|
1604 | al6 = bl5;
|
1605 | al7 = bl6;
|
1606 | al0 = bl7;
|
1607 |
|
1608 | if (i%16 === 15) {
|
1609 | for (j = 0; j < 16; j++) {
|
1610 |
|
1611 | h = wh[j];
|
1612 | l = wl[j];
|
1613 |
|
1614 | a = l & 0xffff; b = l >>> 16;
|
1615 | c = h & 0xffff; d = h >>> 16;
|
1616 |
|
1617 | h = wh[(j+9)%16];
|
1618 | l = wl[(j+9)%16];
|
1619 |
|
1620 | a += l & 0xffff; b += l >>> 16;
|
1621 | c += h & 0xffff; d += h >>> 16;
|
1622 |
|
1623 |
|
1624 | th = wh[(j+1)%16];
|
1625 | tl = wl[(j+1)%16];
|
1626 | h = ((th >>> 1) | (tl << (32-1))) ^ ((th >>> 8) | (tl << (32-8))) ^ (th >>> 7);
|
1627 | l = ((tl >>> 1) | (th << (32-1))) ^ ((tl >>> 8) | (th << (32-8))) ^ ((tl >>> 7) | (th << (32-7)));
|
1628 |
|
1629 | a += l & 0xffff; b += l >>> 16;
|
1630 | c += h & 0xffff; d += h >>> 16;
|
1631 |
|
1632 |
|
1633 | th = wh[(j+14)%16];
|
1634 | tl = wl[(j+14)%16];
|
1635 | h = ((th >>> 19) | (tl << (32-19))) ^ ((tl >>> (61-32)) | (th << (32-(61-32)))) ^ (th >>> 6);
|
1636 | l = ((tl >>> 19) | (th << (32-19))) ^ ((th >>> (61-32)) | (tl << (32-(61-32)))) ^ ((tl >>> 6) | (th << (32-6)));
|
1637 |
|
1638 | a += l & 0xffff; b += l >>> 16;
|
1639 | c += h & 0xffff; d += h >>> 16;
|
1640 |
|
1641 | b += a >>> 16;
|
1642 | c += b >>> 16;
|
1643 | d += c >>> 16;
|
1644 |
|
1645 | wh[j] = (c & 0xffff) | (d << 16);
|
1646 | wl[j] = (a & 0xffff) | (b << 16);
|
1647 | }
|
1648 | }
|
1649 | }
|
1650 |
|
1651 |
|
1652 | h = ah0;
|
1653 | l = al0;
|
1654 |
|
1655 | a = l & 0xffff; b = l >>> 16;
|
1656 | c = h & 0xffff; d = h >>> 16;
|
1657 |
|
1658 | h = hh[0];
|
1659 | l = hl[0];
|
1660 |
|
1661 | a += l & 0xffff; b += l >>> 16;
|
1662 | c += h & 0xffff; d += h >>> 16;
|
1663 |
|
1664 | b += a >>> 16;
|
1665 | c += b >>> 16;
|
1666 | d += c >>> 16;
|
1667 |
|
1668 | hh[0] = ah0 = (c & 0xffff) | (d << 16);
|
1669 | hl[0] = al0 = (a & 0xffff) | (b << 16);
|
1670 |
|
1671 | h = ah1;
|
1672 | l = al1;
|
1673 |
|
1674 | a = l & 0xffff; b = l >>> 16;
|
1675 | c = h & 0xffff; d = h >>> 16;
|
1676 |
|
1677 | h = hh[1];
|
1678 | l = hl[1];
|
1679 |
|
1680 | a += l & 0xffff; b += l >>> 16;
|
1681 | c += h & 0xffff; d += h >>> 16;
|
1682 |
|
1683 | b += a >>> 16;
|
1684 | c += b >>> 16;
|
1685 | d += c >>> 16;
|
1686 |
|
1687 | hh[1] = ah1 = (c & 0xffff) | (d << 16);
|
1688 | hl[1] = al1 = (a & 0xffff) | (b << 16);
|
1689 |
|
1690 | h = ah2;
|
1691 | l = al2;
|
1692 |
|
1693 | a = l & 0xffff; b = l >>> 16;
|
1694 | c = h & 0xffff; d = h >>> 16;
|
1695 |
|
1696 | h = hh[2];
|
1697 | l = hl[2];
|
1698 |
|
1699 | a += l & 0xffff; b += l >>> 16;
|
1700 | c += h & 0xffff; d += h >>> 16;
|
1701 |
|
1702 | b += a >>> 16;
|
1703 | c += b >>> 16;
|
1704 | d += c >>> 16;
|
1705 |
|
1706 | hh[2] = ah2 = (c & 0xffff) | (d << 16);
|
1707 | hl[2] = al2 = (a & 0xffff) | (b << 16);
|
1708 |
|
1709 | h = ah3;
|
1710 | l = al3;
|
1711 |
|
1712 | a = l & 0xffff; b = l >>> 16;
|
1713 | c = h & 0xffff; d = h >>> 16;
|
1714 |
|
1715 | h = hh[3];
|
1716 | l = hl[3];
|
1717 |
|
1718 | a += l & 0xffff; b += l >>> 16;
|
1719 | c += h & 0xffff; d += h >>> 16;
|
1720 |
|
1721 | b += a >>> 16;
|
1722 | c += b >>> 16;
|
1723 | d += c >>> 16;
|
1724 |
|
1725 | hh[3] = ah3 = (c & 0xffff) | (d << 16);
|
1726 | hl[3] = al3 = (a & 0xffff) | (b << 16);
|
1727 |
|
1728 | h = ah4;
|
1729 | l = al4;
|
1730 |
|
1731 | a = l & 0xffff; b = l >>> 16;
|
1732 | c = h & 0xffff; d = h >>> 16;
|
1733 |
|
1734 | h = hh[4];
|
1735 | l = hl[4];
|
1736 |
|
1737 | a += l & 0xffff; b += l >>> 16;
|
1738 | c += h & 0xffff; d += h >>> 16;
|
1739 |
|
1740 | b += a >>> 16;
|
1741 | c += b >>> 16;
|
1742 | d += c >>> 16;
|
1743 |
|
1744 | hh[4] = ah4 = (c & 0xffff) | (d << 16);
|
1745 | hl[4] = al4 = (a & 0xffff) | (b << 16);
|
1746 |
|
1747 | h = ah5;
|
1748 | l = al5;
|
1749 |
|
1750 | a = l & 0xffff; b = l >>> 16;
|
1751 | c = h & 0xffff; d = h >>> 16;
|
1752 |
|
1753 | h = hh[5];
|
1754 | l = hl[5];
|
1755 |
|
1756 | a += l & 0xffff; b += l >>> 16;
|
1757 | c += h & 0xffff; d += h >>> 16;
|
1758 |
|
1759 | b += a >>> 16;
|
1760 | c += b >>> 16;
|
1761 | d += c >>> 16;
|
1762 |
|
1763 | hh[5] = ah5 = (c & 0xffff) | (d << 16);
|
1764 | hl[5] = al5 = (a & 0xffff) | (b << 16);
|
1765 |
|
1766 | h = ah6;
|
1767 | l = al6;
|
1768 |
|
1769 | a = l & 0xffff; b = l >>> 16;
|
1770 | c = h & 0xffff; d = h >>> 16;
|
1771 |
|
1772 | h = hh[6];
|
1773 | l = hl[6];
|
1774 |
|
1775 | a += l & 0xffff; b += l >>> 16;
|
1776 | c += h & 0xffff; d += h >>> 16;
|
1777 |
|
1778 | b += a >>> 16;
|
1779 | c += b >>> 16;
|
1780 | d += c >>> 16;
|
1781 |
|
1782 | hh[6] = ah6 = (c & 0xffff) | (d << 16);
|
1783 | hl[6] = al6 = (a & 0xffff) | (b << 16);
|
1784 |
|
1785 | h = ah7;
|
1786 | l = al7;
|
1787 |
|
1788 | a = l & 0xffff; b = l >>> 16;
|
1789 | c = h & 0xffff; d = h >>> 16;
|
1790 |
|
1791 | h = hh[7];
|
1792 | l = hl[7];
|
1793 |
|
1794 | a += l & 0xffff; b += l >>> 16;
|
1795 | c += h & 0xffff; d += h >>> 16;
|
1796 |
|
1797 | b += a >>> 16;
|
1798 | c += b >>> 16;
|
1799 | d += c >>> 16;
|
1800 |
|
1801 | hh[7] = ah7 = (c & 0xffff) | (d << 16);
|
1802 | hl[7] = al7 = (a & 0xffff) | (b << 16);
|
1803 |
|
1804 | pos += 128;
|
1805 | n -= 128;
|
1806 | }
|
1807 |
|
1808 | return n;
|
1809 | }
|
1810 |
|
1811 | function crypto_hash(out, m, n) {
|
1812 | var hh = new Int32Array(8),
|
1813 | hl = new Int32Array(8),
|
1814 | x = new Uint8Array(256),
|
1815 | i, b = n;
|
1816 |
|
1817 | hh[0] = 0x6a09e667;
|
1818 | hh[1] = 0xbb67ae85;
|
1819 | hh[2] = 0x3c6ef372;
|
1820 | hh[3] = 0xa54ff53a;
|
1821 | hh[4] = 0x510e527f;
|
1822 | hh[5] = 0x9b05688c;
|
1823 | hh[6] = 0x1f83d9ab;
|
1824 | hh[7] = 0x5be0cd19;
|
1825 |
|
1826 | hl[0] = 0xf3bcc908;
|
1827 | hl[1] = 0x84caa73b;
|
1828 | hl[2] = 0xfe94f82b;
|
1829 | hl[3] = 0x5f1d36f1;
|
1830 | hl[4] = 0xade682d1;
|
1831 | hl[5] = 0x2b3e6c1f;
|
1832 | hl[6] = 0xfb41bd6b;
|
1833 | hl[7] = 0x137e2179;
|
1834 |
|
1835 | crypto_hashblocks_hl(hh, hl, m, n);
|
1836 | n %= 128;
|
1837 |
|
1838 | for (i = 0; i < n; i++) x[i] = m[b-n+i];
|
1839 | x[n] = 128;
|
1840 |
|
1841 | n = 256-128*(n<112?1:0);
|
1842 | x[n-9] = 0;
|
1843 | ts64(x, n-8, (b / 0x20000000) | 0, b << 3);
|
1844 | crypto_hashblocks_hl(hh, hl, x, n);
|
1845 |
|
1846 | for (i = 0; i < 8; i++) ts64(out, 8*i, hh[i], hl[i]);
|
1847 |
|
1848 | return 0;
|
1849 | }
|
1850 |
|
1851 | function add(p, q) {
|
1852 | var a = gf(), b = gf(), c = gf(),
|
1853 | d = gf(), e = gf(), f = gf(),
|
1854 | g = gf(), h = gf(), t = gf();
|
1855 |
|
1856 | Z(a, p[1], p[0]);
|
1857 | Z(t, q[1], q[0]);
|
1858 | M(a, a, t);
|
1859 | A(b, p[0], p[1]);
|
1860 | A(t, q[0], q[1]);
|
1861 | M(b, b, t);
|
1862 | M(c, p[3], q[3]);
|
1863 | M(c, c, D2);
|
1864 | M(d, p[2], q[2]);
|
1865 | A(d, d, d);
|
1866 | Z(e, b, a);
|
1867 | Z(f, d, c);
|
1868 | A(g, d, c);
|
1869 | A(h, b, a);
|
1870 |
|
1871 | M(p[0], e, f);
|
1872 | M(p[1], h, g);
|
1873 | M(p[2], g, f);
|
1874 | M(p[3], e, h);
|
1875 | }
|
1876 |
|
1877 | function cswap(p, q, b) {
|
1878 | var i;
|
1879 | for (i = 0; i < 4; i++) {
|
1880 | sel25519(p[i], q[i], b);
|
1881 | }
|
1882 | }
|
1883 |
|
1884 | function pack(r, p) {
|
1885 | var tx = gf(), ty = gf(), zi = gf();
|
1886 | inv25519(zi, p[2]);
|
1887 | M(tx, p[0], zi);
|
1888 | M(ty, p[1], zi);
|
1889 | pack25519(r, ty);
|
1890 | r[31] ^= par25519(tx) << 7;
|
1891 | }
|
1892 |
|
1893 | function scalarmult(p, q, s) {
|
1894 | var b, i;
|
1895 | set25519(p[0], gf0);
|
1896 | set25519(p[1], gf1);
|
1897 | set25519(p[2], gf1);
|
1898 | set25519(p[3], gf0);
|
1899 | for (i = 255; i >= 0; --i) {
|
1900 | b = (s[(i/8)|0] >> (i&7)) & 1;
|
1901 | cswap(p, q, b);
|
1902 | add(q, p);
|
1903 | add(p, p);
|
1904 | cswap(p, q, b);
|
1905 | }
|
1906 | }
|
1907 |
|
1908 | function scalarbase(p, s) {
|
1909 | var q = [gf(), gf(), gf(), gf()];
|
1910 | set25519(q[0], X);
|
1911 | set25519(q[1], Y);
|
1912 | set25519(q[2], gf1);
|
1913 | M(q[3], X, Y);
|
1914 | scalarmult(p, q, s);
|
1915 | }
|
1916 |
|
1917 | function crypto_sign_keypair(pk, sk, seeded) {
|
1918 | var d = new Uint8Array(64);
|
1919 | var p = [gf(), gf(), gf(), gf()];
|
1920 | var i;
|
1921 |
|
1922 | if (!seeded) randombytes(sk, 32);
|
1923 | crypto_hash(d, sk, 32);
|
1924 | d[0] &= 248;
|
1925 | d[31] &= 127;
|
1926 | d[31] |= 64;
|
1927 |
|
1928 | scalarbase(p, d);
|
1929 | pack(pk, p);
|
1930 |
|
1931 | for (i = 0; i < 32; i++) sk[i+32] = pk[i];
|
1932 | return 0;
|
1933 | }
|
1934 |
|
1935 | var L = new Float64Array([0xed, 0xd3, 0xf5, 0x5c, 0x1a, 0x63, 0x12, 0x58, 0xd6, 0x9c, 0xf7, 0xa2, 0xde, 0xf9, 0xde, 0x14, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x10]);
|
1936 |
|
1937 | function modL(r, x) {
|
1938 | var carry, i, j, k;
|
1939 | for (i = 63; i >= 32; --i) {
|
1940 | carry = 0;
|
1941 | for (j = i - 32, k = i - 12; j < k; ++j) {
|
1942 | x[j] += carry - 16 * x[i] * L[j - (i - 32)];
|
1943 | carry = (x[j] + 128) >> 8;
|
1944 | x[j] -= carry * 256;
|
1945 | }
|
1946 | x[j] += carry;
|
1947 | x[i] = 0;
|
1948 | }
|
1949 | carry = 0;
|
1950 | for (j = 0; j < 32; j++) {
|
1951 | x[j] += carry - (x[31] >> 4) * L[j];
|
1952 | carry = x[j] >> 8;
|
1953 | x[j] &= 255;
|
1954 | }
|
1955 | for (j = 0; j < 32; j++) x[j] -= carry * L[j];
|
1956 | for (i = 0; i < 32; i++) {
|
1957 | x[i+1] += x[i] >> 8;
|
1958 | r[i] = x[i] & 255;
|
1959 | }
|
1960 | }
|
1961 |
|
1962 | function reduce(r) {
|
1963 | var x = new Float64Array(64), i;
|
1964 | for (i = 0; i < 64; i++) x[i] = r[i];
|
1965 | for (i = 0; i < 64; i++) r[i] = 0;
|
1966 | modL(r, x);
|
1967 | }
|
1968 |
|
1969 |
|
1970 | function crypto_sign(sm, m, n, sk) {
|
1971 | var d = new Uint8Array(64), h = new Uint8Array(64), r = new Uint8Array(64);
|
1972 | var i, j, x = new Float64Array(64);
|
1973 | var p = [gf(), gf(), gf(), gf()];
|
1974 |
|
1975 | crypto_hash(d, sk, 32);
|
1976 | d[0] &= 248;
|
1977 | d[31] &= 127;
|
1978 | d[31] |= 64;
|
1979 |
|
1980 | var smlen = n + 64;
|
1981 | for (i = 0; i < n; i++) sm[64 + i] = m[i];
|
1982 | for (i = 0; i < 32; i++) sm[32 + i] = d[32 + i];
|
1983 |
|
1984 | crypto_hash(r, sm.subarray(32), n+32);
|
1985 | reduce(r);
|
1986 | scalarbase(p, r);
|
1987 | pack(sm, p);
|
1988 |
|
1989 | for (i = 32; i < 64; i++) sm[i] = sk[i];
|
1990 | crypto_hash(h, sm, n + 64);
|
1991 | reduce(h);
|
1992 |
|
1993 | for (i = 0; i < 64; i++) x[i] = 0;
|
1994 | for (i = 0; i < 32; i++) x[i] = r[i];
|
1995 | for (i = 0; i < 32; i++) {
|
1996 | for (j = 0; j < 32; j++) {
|
1997 | x[i+j] += h[i] * d[j];
|
1998 | }
|
1999 | }
|
2000 |
|
2001 | modL(sm.subarray(32), x);
|
2002 | return smlen;
|
2003 | }
|
2004 |
|
2005 | function unpackneg(r, p) {
|
2006 | var t = gf(), chk = gf(), num = gf(),
|
2007 | den = gf(), den2 = gf(), den4 = gf(),
|
2008 | den6 = gf();
|
2009 |
|
2010 | set25519(r[2], gf1);
|
2011 | unpack25519(r[1], p);
|
2012 | S(num, r[1]);
|
2013 | M(den, num, D);
|
2014 | Z(num, num, r[2]);
|
2015 | A(den, r[2], den);
|
2016 |
|
2017 | S(den2, den);
|
2018 | S(den4, den2);
|
2019 | M(den6, den4, den2);
|
2020 | M(t, den6, num);
|
2021 | M(t, t, den);
|
2022 |
|
2023 | pow2523(t, t);
|
2024 | M(t, t, num);
|
2025 | M(t, t, den);
|
2026 | M(t, t, den);
|
2027 | M(r[0], t, den);
|
2028 |
|
2029 | S(chk, r[0]);
|
2030 | M(chk, chk, den);
|
2031 | if (neq25519(chk, num)) M(r[0], r[0], I);
|
2032 |
|
2033 | S(chk, r[0]);
|
2034 | M(chk, chk, den);
|
2035 | if (neq25519(chk, num)) return -1;
|
2036 |
|
2037 | if (par25519(r[0]) === (p[31]>>7)) Z(r[0], gf0, r[0]);
|
2038 |
|
2039 | M(r[3], r[0], r[1]);
|
2040 | return 0;
|
2041 | }
|
2042 |
|
2043 | function crypto_sign_open(m, sm, n, pk) {
|
2044 | var i, mlen;
|
2045 | var t = new Uint8Array(32), h = new Uint8Array(64);
|
2046 | var p = [gf(), gf(), gf(), gf()],
|
2047 | q = [gf(), gf(), gf(), gf()];
|
2048 |
|
2049 | mlen = -1;
|
2050 | if (n < 64) return -1;
|
2051 |
|
2052 | if (unpackneg(q, pk)) return -1;
|
2053 |
|
2054 | for (i = 0; i < n; i++) m[i] = sm[i];
|
2055 | for (i = 0; i < 32; i++) m[i+32] = pk[i];
|
2056 | crypto_hash(h, m, n);
|
2057 | reduce(h);
|
2058 | scalarmult(p, q, h);
|
2059 |
|
2060 | scalarbase(q, sm.subarray(32));
|
2061 | add(p, q);
|
2062 | pack(t, p);
|
2063 |
|
2064 | n -= 64;
|
2065 | if (crypto_verify_32(sm, 0, t, 0)) {
|
2066 | for (i = 0; i < n; i++) m[i] = 0;
|
2067 | return -1;
|
2068 | }
|
2069 |
|
2070 | for (i = 0; i < n; i++) m[i] = sm[i + 64];
|
2071 | mlen = n;
|
2072 | return mlen;
|
2073 | }
|
2074 |
|
2075 | var crypto_secretbox_KEYBYTES = 32,
|
2076 | crypto_secretbox_NONCEBYTES = 24,
|
2077 | crypto_secretbox_ZEROBYTES = 32,
|
2078 | crypto_secretbox_BOXZEROBYTES = 16,
|
2079 | crypto_scalarmult_BYTES = 32,
|
2080 | crypto_scalarmult_SCALARBYTES = 32,
|
2081 | crypto_box_PUBLICKEYBYTES = 32,
|
2082 | crypto_box_SECRETKEYBYTES = 32,
|
2083 | crypto_box_BEFORENMBYTES = 32,
|
2084 | crypto_box_NONCEBYTES = crypto_secretbox_NONCEBYTES,
|
2085 | crypto_box_ZEROBYTES = crypto_secretbox_ZEROBYTES,
|
2086 | crypto_box_BOXZEROBYTES = crypto_secretbox_BOXZEROBYTES,
|
2087 | crypto_sign_BYTES = 64,
|
2088 | crypto_sign_PUBLICKEYBYTES = 32,
|
2089 | crypto_sign_SECRETKEYBYTES = 64,
|
2090 | crypto_sign_SEEDBYTES = 32,
|
2091 | crypto_hash_BYTES = 64;
|
2092 |
|
2093 | nacl.lowlevel = {
|
2094 | crypto_core_hsalsa20: crypto_core_hsalsa20,
|
2095 | crypto_stream_xor: crypto_stream_xor,
|
2096 | crypto_stream: crypto_stream,
|
2097 | crypto_stream_salsa20_xor: crypto_stream_salsa20_xor,
|
2098 | crypto_stream_salsa20: crypto_stream_salsa20,
|
2099 | crypto_onetimeauth: crypto_onetimeauth,
|
2100 | crypto_onetimeauth_verify: crypto_onetimeauth_verify,
|
2101 | crypto_verify_16: crypto_verify_16,
|
2102 | crypto_verify_32: crypto_verify_32,
|
2103 | crypto_secretbox: crypto_secretbox,
|
2104 | crypto_secretbox_open: crypto_secretbox_open,
|
2105 | crypto_scalarmult: crypto_scalarmult,
|
2106 | crypto_scalarmult_base: crypto_scalarmult_base,
|
2107 | crypto_box_beforenm: crypto_box_beforenm,
|
2108 | crypto_box_afternm: crypto_box_afternm,
|
2109 | crypto_box: crypto_box,
|
2110 | crypto_box_open: crypto_box_open,
|
2111 | crypto_box_keypair: crypto_box_keypair,
|
2112 | crypto_hash: crypto_hash,
|
2113 | crypto_sign: crypto_sign,
|
2114 | crypto_sign_keypair: crypto_sign_keypair,
|
2115 | crypto_sign_open: crypto_sign_open,
|
2116 |
|
2117 | crypto_secretbox_KEYBYTES: crypto_secretbox_KEYBYTES,
|
2118 | crypto_secretbox_NONCEBYTES: crypto_secretbox_NONCEBYTES,
|
2119 | crypto_secretbox_ZEROBYTES: crypto_secretbox_ZEROBYTES,
|
2120 | crypto_secretbox_BOXZEROBYTES: crypto_secretbox_BOXZEROBYTES,
|
2121 | crypto_scalarmult_BYTES: crypto_scalarmult_BYTES,
|
2122 | crypto_scalarmult_SCALARBYTES: crypto_scalarmult_SCALARBYTES,
|
2123 | crypto_box_PUBLICKEYBYTES: crypto_box_PUBLICKEYBYTES,
|
2124 | crypto_box_SECRETKEYBYTES: crypto_box_SECRETKEYBYTES,
|
2125 | crypto_box_BEFORENMBYTES: crypto_box_BEFORENMBYTES,
|
2126 | crypto_box_NONCEBYTES: crypto_box_NONCEBYTES,
|
2127 | crypto_box_ZEROBYTES: crypto_box_ZEROBYTES,
|
2128 | crypto_box_BOXZEROBYTES: crypto_box_BOXZEROBYTES,
|
2129 | crypto_sign_BYTES: crypto_sign_BYTES,
|
2130 | crypto_sign_PUBLICKEYBYTES: crypto_sign_PUBLICKEYBYTES,
|
2131 | crypto_sign_SECRETKEYBYTES: crypto_sign_SECRETKEYBYTES,
|
2132 | crypto_sign_SEEDBYTES: crypto_sign_SEEDBYTES,
|
2133 | crypto_hash_BYTES: crypto_hash_BYTES
|
2134 | };
|
2135 |
|
2136 |
|
2137 |
|
2138 | function checkLengths(k, n) {
|
2139 | if (k.length !== crypto_secretbox_KEYBYTES) throw new Error('bad key size');
|
2140 | if (n.length !== crypto_secretbox_NONCEBYTES) throw new Error('bad nonce size');
|
2141 | }
|
2142 |
|
2143 | function checkBoxLengths(pk, sk) {
|
2144 | if (pk.length !== crypto_box_PUBLICKEYBYTES) throw new Error('bad public key size');
|
2145 | if (sk.length !== crypto_box_SECRETKEYBYTES) throw new Error('bad secret key size');
|
2146 | }
|
2147 |
|
2148 | function checkArrayTypes() {
|
2149 | var t, i;
|
2150 | for (i = 0; i < arguments.length; i++) {
|
2151 | if ((t = Object.prototype.toString.call(arguments[i])) !== '[object Uint8Array]')
|
2152 | throw new TypeError('unexpected type ' + t + ', use Uint8Array');
|
2153 | }
|
2154 | }
|
2155 |
|
2156 | function cleanup(arr) {
|
2157 | for (var i = 0; i < arr.length; i++) arr[i] = 0;
|
2158 | }
|
2159 |
|
2160 |
|
2161 | if (!nacl.util) {
|
2162 | nacl.util = {};
|
2163 | nacl.util.decodeUTF8 = nacl.util.encodeUTF8 = nacl.util.encodeBase64 = nacl.util.decodeBase64 = function() {
|
2164 | throw new Error('nacl.util moved into separate package: https://github.com/dchest/tweetnacl-util-js');
|
2165 | };
|
2166 | }
|
2167 |
|
2168 | nacl.randomBytes = function(n) {
|
2169 | var b = new Uint8Array(n);
|
2170 | randombytes(b, n);
|
2171 | return b;
|
2172 | };
|
2173 |
|
2174 | nacl.secretbox = function(msg, nonce, key) {
|
2175 | checkArrayTypes(msg, nonce, key);
|
2176 | checkLengths(key, nonce);
|
2177 | var m = new Uint8Array(crypto_secretbox_ZEROBYTES + msg.length);
|
2178 | var c = new Uint8Array(m.length);
|
2179 | for (var i = 0; i < msg.length; i++) m[i+crypto_secretbox_ZEROBYTES] = msg[i];
|
2180 | crypto_secretbox(c, m, m.length, nonce, key);
|
2181 | return c.subarray(crypto_secretbox_BOXZEROBYTES);
|
2182 | };
|
2183 |
|
2184 | nacl.secretbox.open = function(box, nonce, key) {
|
2185 | checkArrayTypes(box, nonce, key);
|
2186 | checkLengths(key, nonce);
|
2187 | var c = new Uint8Array(crypto_secretbox_BOXZEROBYTES + box.length);
|
2188 | var m = new Uint8Array(c.length);
|
2189 | for (var i = 0; i < box.length; i++) c[i+crypto_secretbox_BOXZEROBYTES] = box[i];
|
2190 | if (c.length < 32) return false;
|
2191 | if (crypto_secretbox_open(m, c, c.length, nonce, key) !== 0) return false;
|
2192 | return m.subarray(crypto_secretbox_ZEROBYTES);
|
2193 | };
|
2194 |
|
2195 | nacl.secretbox.keyLength = crypto_secretbox_KEYBYTES;
|
2196 | nacl.secretbox.nonceLength = crypto_secretbox_NONCEBYTES;
|
2197 | nacl.secretbox.overheadLength = crypto_secretbox_BOXZEROBYTES;
|
2198 |
|
2199 | nacl.scalarMult = function(n, p) {
|
2200 | checkArrayTypes(n, p);
|
2201 | if (n.length !== crypto_scalarmult_SCALARBYTES) throw new Error('bad n size');
|
2202 | if (p.length !== crypto_scalarmult_BYTES) throw new Error('bad p size');
|
2203 | var q = new Uint8Array(crypto_scalarmult_BYTES);
|
2204 | crypto_scalarmult(q, n, p);
|
2205 | return q;
|
2206 | };
|
2207 |
|
2208 | nacl.scalarMult.base = function(n) {
|
2209 | checkArrayTypes(n);
|
2210 | if (n.length !== crypto_scalarmult_SCALARBYTES) throw new Error('bad n size');
|
2211 | var q = new Uint8Array(crypto_scalarmult_BYTES);
|
2212 | crypto_scalarmult_base(q, n);
|
2213 | return q;
|
2214 | };
|
2215 |
|
2216 | nacl.scalarMult.scalarLength = crypto_scalarmult_SCALARBYTES;
|
2217 | nacl.scalarMult.groupElementLength = crypto_scalarmult_BYTES;
|
2218 |
|
2219 | nacl.box = function(msg, nonce, publicKey, secretKey) {
|
2220 | var k = nacl.box.before(publicKey, secretKey);
|
2221 | return nacl.secretbox(msg, nonce, k);
|
2222 | };
|
2223 |
|
2224 | nacl.box.before = function(publicKey, secretKey) {
|
2225 | checkArrayTypes(publicKey, secretKey);
|
2226 | checkBoxLengths(publicKey, secretKey);
|
2227 | var k = new Uint8Array(crypto_box_BEFORENMBYTES);
|
2228 | crypto_box_beforenm(k, publicKey, secretKey);
|
2229 | return k;
|
2230 | };
|
2231 |
|
2232 | nacl.box.after = nacl.secretbox;
|
2233 |
|
2234 | nacl.box.open = function(msg, nonce, publicKey, secretKey) {
|
2235 | var k = nacl.box.before(publicKey, secretKey);
|
2236 | return nacl.secretbox.open(msg, nonce, k);
|
2237 | };
|
2238 |
|
2239 | nacl.box.open.after = nacl.secretbox.open;
|
2240 |
|
2241 | nacl.box.keyPair = function() {
|
2242 | var pk = new Uint8Array(crypto_box_PUBLICKEYBYTES);
|
2243 | var sk = new Uint8Array(crypto_box_SECRETKEYBYTES);
|
2244 | crypto_box_keypair(pk, sk);
|
2245 | return {publicKey: pk, secretKey: sk};
|
2246 | };
|
2247 |
|
2248 | nacl.box.keyPair.fromSecretKey = function(secretKey) {
|
2249 | checkArrayTypes(secretKey);
|
2250 | if (secretKey.length !== crypto_box_SECRETKEYBYTES)
|
2251 | throw new Error('bad secret key size');
|
2252 | var pk = new Uint8Array(crypto_box_PUBLICKEYBYTES);
|
2253 | crypto_scalarmult_base(pk, secretKey);
|
2254 | return {publicKey: pk, secretKey: new Uint8Array(secretKey)};
|
2255 | };
|
2256 |
|
2257 | nacl.box.publicKeyLength = crypto_box_PUBLICKEYBYTES;
|
2258 | nacl.box.secretKeyLength = crypto_box_SECRETKEYBYTES;
|
2259 | nacl.box.sharedKeyLength = crypto_box_BEFORENMBYTES;
|
2260 | nacl.box.nonceLength = crypto_box_NONCEBYTES;
|
2261 | nacl.box.overheadLength = nacl.secretbox.overheadLength;
|
2262 |
|
2263 | nacl.sign = function(msg, secretKey) {
|
2264 | checkArrayTypes(msg, secretKey);
|
2265 | if (secretKey.length !== crypto_sign_SECRETKEYBYTES)
|
2266 | throw new Error('bad secret key size');
|
2267 | var signedMsg = new Uint8Array(crypto_sign_BYTES+msg.length);
|
2268 | crypto_sign(signedMsg, msg, msg.length, secretKey);
|
2269 | return signedMsg;
|
2270 | };
|
2271 |
|
2272 | nacl.sign.open = function(signedMsg, publicKey) {
|
2273 | if (arguments.length !== 2)
|
2274 | throw new Error('nacl.sign.open accepts 2 arguments; did you mean to use nacl.sign.detached.verify?');
|
2275 | checkArrayTypes(signedMsg, publicKey);
|
2276 | if (publicKey.length !== crypto_sign_PUBLICKEYBYTES)
|
2277 | throw new Error('bad public key size');
|
2278 | var tmp = new Uint8Array(signedMsg.length);
|
2279 | var mlen = crypto_sign_open(tmp, signedMsg, signedMsg.length, publicKey);
|
2280 | if (mlen < 0) return null;
|
2281 | var m = new Uint8Array(mlen);
|
2282 | for (var i = 0; i < m.length; i++) m[i] = tmp[i];
|
2283 | return m;
|
2284 | };
|
2285 |
|
2286 | nacl.sign.detached = function(msg, secretKey) {
|
2287 | var signedMsg = nacl.sign(msg, secretKey);
|
2288 | var sig = new Uint8Array(crypto_sign_BYTES);
|
2289 | for (var i = 0; i < sig.length; i++) sig[i] = signedMsg[i];
|
2290 | return sig;
|
2291 | };
|
2292 |
|
2293 | nacl.sign.detached.verify = function(msg, sig, publicKey) {
|
2294 | checkArrayTypes(msg, sig, publicKey);
|
2295 | if (sig.length !== crypto_sign_BYTES)
|
2296 | throw new Error('bad signature size');
|
2297 | if (publicKey.length !== crypto_sign_PUBLICKEYBYTES)
|
2298 | throw new Error('bad public key size');
|
2299 | var sm = new Uint8Array(crypto_sign_BYTES + msg.length);
|
2300 | var m = new Uint8Array(crypto_sign_BYTES + msg.length);
|
2301 | var i;
|
2302 | for (i = 0; i < crypto_sign_BYTES; i++) sm[i] = sig[i];
|
2303 | for (i = 0; i < msg.length; i++) sm[i+crypto_sign_BYTES] = msg[i];
|
2304 | return (crypto_sign_open(m, sm, sm.length, publicKey) >= 0);
|
2305 | };
|
2306 |
|
2307 | nacl.sign.keyPair = function() {
|
2308 | var pk = new Uint8Array(crypto_sign_PUBLICKEYBYTES);
|
2309 | var sk = new Uint8Array(crypto_sign_SECRETKEYBYTES);
|
2310 | crypto_sign_keypair(pk, sk);
|
2311 | return {publicKey: pk, secretKey: sk};
|
2312 | };
|
2313 |
|
2314 | nacl.sign.keyPair.fromSecretKey = function(secretKey) {
|
2315 | checkArrayTypes(secretKey);
|
2316 | if (secretKey.length !== crypto_sign_SECRETKEYBYTES)
|
2317 | throw new Error('bad secret key size');
|
2318 | var pk = new Uint8Array(crypto_sign_PUBLICKEYBYTES);
|
2319 | for (var i = 0; i < pk.length; i++) pk[i] = secretKey[32+i];
|
2320 | return {publicKey: pk, secretKey: new Uint8Array(secretKey)};
|
2321 | };
|
2322 |
|
2323 | nacl.sign.keyPair.fromSeed = function(seed) {
|
2324 | checkArrayTypes(seed);
|
2325 | if (seed.length !== crypto_sign_SEEDBYTES)
|
2326 | throw new Error('bad seed size');
|
2327 | var pk = new Uint8Array(crypto_sign_PUBLICKEYBYTES);
|
2328 | var sk = new Uint8Array(crypto_sign_SECRETKEYBYTES);
|
2329 | for (var i = 0; i < 32; i++) sk[i] = seed[i];
|
2330 | crypto_sign_keypair(pk, sk, true);
|
2331 | return {publicKey: pk, secretKey: sk};
|
2332 | };
|
2333 |
|
2334 | nacl.sign.publicKeyLength = crypto_sign_PUBLICKEYBYTES;
|
2335 | nacl.sign.secretKeyLength = crypto_sign_SECRETKEYBYTES;
|
2336 | nacl.sign.seedLength = crypto_sign_SEEDBYTES;
|
2337 | nacl.sign.signatureLength = crypto_sign_BYTES;
|
2338 |
|
2339 | nacl.hash = function(msg) {
|
2340 | checkArrayTypes(msg);
|
2341 | var h = new Uint8Array(crypto_hash_BYTES);
|
2342 | crypto_hash(h, msg, msg.length);
|
2343 | return h;
|
2344 | };
|
2345 |
|
2346 | nacl.hash.hashLength = crypto_hash_BYTES;
|
2347 |
|
2348 | nacl.verify = function(x, y) {
|
2349 | checkArrayTypes(x, y);
|
2350 |
|
2351 | if (x.length === 0 || y.length === 0) return false;
|
2352 | if (x.length !== y.length) return false;
|
2353 | return (vn(x, 0, y, 0, x.length) === 0) ? true : false;
|
2354 | };
|
2355 |
|
2356 | nacl.setPRNG = function(fn) {
|
2357 | randombytes = fn;
|
2358 | };
|
2359 |
|
2360 | (function() {
|
2361 |
|
2362 |
|
2363 | var crypto = typeof self !== 'undefined' ? (self.crypto || self.msCrypto) : null;
|
2364 | if (crypto && crypto.getRandomValues) {
|
2365 |
|
2366 | var QUOTA = 65536;
|
2367 | nacl.setPRNG(function(x, n) {
|
2368 | var i, v = new Uint8Array(n);
|
2369 | for (i = 0; i < n; i += QUOTA) {
|
2370 | crypto.getRandomValues(v.subarray(i, i + Math.min(n - i, QUOTA)));
|
2371 | }
|
2372 | for (i = 0; i < n; i++) x[i] = v[i];
|
2373 | cleanup(v);
|
2374 | });
|
2375 | } else if (typeof require !== 'undefined') {
|
2376 |
|
2377 | crypto = require('crypto');
|
2378 | if (crypto && crypto.randomBytes) {
|
2379 | nacl.setPRNG(function(x, n) {
|
2380 | var i, v = crypto.randomBytes(n);
|
2381 | for (i = 0; i < n; i++) x[i] = v[i];
|
2382 | cleanup(v);
|
2383 | });
|
2384 | }
|
2385 | }
|
2386 | })();
|
2387 |
|
2388 | })(typeof module !== 'undefined' && module.exports ? module.exports : (self.nacl = self.nacl || {}));
|