1 | var hexcase = 0
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2 | var b64pad = ''
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3 | var chrsz = 8
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4 |
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5 | function hex_md5 (s) {
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6 | return binl2hex(core_md5(str2binl(s), s.length * chrsz))
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7 | }
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8 |
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9 | function b64_md5 (s) {
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10 | return binl2b64(core_md5(str2binl(s), s.length * chrsz))
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11 | }
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12 |
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13 | function str_md5 (s) {
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14 | return binl2str(core_md5(str2binl(s), s.length * chrsz))
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15 | }
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16 |
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17 | function hex_hmac_md5 (key, data) {
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18 | return binl2hex(core_hmac_md5(key, data))
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19 | }
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20 |
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21 | function b64_hmac_md5 (key, data) {
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22 | return binl2b64(core_hmac_md5(key, data))
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23 | }
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24 |
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25 | function str_hmac_md5 (key, data) {
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26 | return binl2str(core_hmac_md5(key, data))
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27 | }
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28 |
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29 | function md5_vm_test () {
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30 | return hex_md5('abc') == '900150983cd24fb0d6963f7d28e17f72'
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31 | }
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32 |
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33 | function core_md5 (x, len) {
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34 | x[len >> 5] |= 0x80 << ((len) % 32)
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35 | x[(((len + 64) >>> 9) << 4) + 14] = len
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36 | var a = 1732584193
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37 | var b = -271733879
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38 | var c = -1732584194
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39 | var d = 271733878
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40 | for (var i = 0; i < x.length; i += 16) {
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41 | var olda = a
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42 | var oldb = b
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43 | var oldc = c
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44 | var oldd = d
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45 | a = md5_ff(a, b, c, d, x[i + 0], 7, -680876936)
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46 | d = md5_ff(d, a, b, c, x[i + 1], 12, -389564586)
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47 | c = md5_ff(c, d, a, b, x[i + 2], 17, 606105819)
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48 | b = md5_ff(b, c, d, a, x[i + 3], 22, -1044525330)
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49 | a = md5_ff(a, b, c, d, x[i + 4], 7, -176418897)
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50 | d = md5_ff(d, a, b, c, x[i + 5], 12, 1200080426)
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51 | c = md5_ff(c, d, a, b, x[i + 6], 17, -1473231341)
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52 | b = md5_ff(b, c, d, a, x[i + 7], 22, -45705983)
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53 | a = md5_ff(a, b, c, d, x[i + 8], 7, 1770035416)
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54 | d = md5_ff(d, a, b, c, x[i + 9], 12, -1958414417)
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55 | c = md5_ff(c, d, a, b, x[i + 10], 17, -42063)
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56 | b = md5_ff(b, c, d, a, x[i + 11], 22, -1990404162)
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57 | a = md5_ff(a, b, c, d, x[i + 12], 7, 1804603682)
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58 | d = md5_ff(d, a, b, c, x[i + 13], 12, -40341101)
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59 | c = md5_ff(c, d, a, b, x[i + 14], 17, -1502002290)
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60 | b = md5_ff(b, c, d, a, x[i + 15], 22, 1236535329)
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61 | a = md5_gg(a, b, c, d, x[i + 1], 5, -165796510)
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62 | d = md5_gg(d, a, b, c, x[i + 6], 9, -1069501632)
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63 | c = md5_gg(c, d, a, b, x[i + 11], 14, 643717713)
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64 | b = md5_gg(b, c, d, a, x[i + 0], 20, -373897302)
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65 | a = md5_gg(a, b, c, d, x[i + 5], 5, -701558691)
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66 | d = md5_gg(d, a, b, c, x[i + 10], 9, 38016083)
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67 | c = md5_gg(c, d, a, b, x[i + 15], 14, -660478335)
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68 | b = md5_gg(b, c, d, a, x[i + 4], 20, -405537848)
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69 | a = md5_gg(a, b, c, d, x[i + 9], 5, 568446438)
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70 | d = md5_gg(d, a, b, c, x[i + 14], 9, -1019803690)
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71 | c = md5_gg(c, d, a, b, x[i + 3], 14, -187363961)
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72 | b = md5_gg(b, c, d, a, x[i + 8], 20, 1163531501)
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73 | a = md5_gg(a, b, c, d, x[i + 13], 5, -1444681467)
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74 | d = md5_gg(d, a, b, c, x[i + 2], 9, -51403784)
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75 | c = md5_gg(c, d, a, b, x[i + 7], 14, 1735328473)
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76 | b = md5_gg(b, c, d, a, x[i + 12], 20, -1926607734)
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77 | a = md5_hh(a, b, c, d, x[i + 5], 4, -378558)
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78 | d = md5_hh(d, a, b, c, x[i + 8], 11, -2022574463)
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79 | c = md5_hh(c, d, a, b, x[i + 11], 16, 1839030562)
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80 | b = md5_hh(b, c, d, a, x[i + 14], 23, -35309556)
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81 | a = md5_hh(a, b, c, d, x[i + 1], 4, -1530992060)
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82 | d = md5_hh(d, a, b, c, x[i + 4], 11, 1272893353)
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83 | c = md5_hh(c, d, a, b, x[i + 7], 16, -155497632)
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84 | b = md5_hh(b, c, d, a, x[i + 10], 23, -1094730640)
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85 | a = md5_hh(a, b, c, d, x[i + 13], 4, 681279174)
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86 | d = md5_hh(d, a, b, c, x[i + 0], 11, -358537222)
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87 | c = md5_hh(c, d, a, b, x[i + 3], 16, -722521979)
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88 | b = md5_hh(b, c, d, a, x[i + 6], 23, 76029189)
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89 | a = md5_hh(a, b, c, d, x[i + 9], 4, -640364487)
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90 | d = md5_hh(d, a, b, c, x[i + 12], 11, -421815835)
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91 | c = md5_hh(c, d, a, b, x[i + 15], 16, 530742520)
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92 | b = md5_hh(b, c, d, a, x[i + 2], 23, -995338651)
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93 | a = md5_ii(a, b, c, d, x[i + 0], 6, -198630844)
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94 | d = md5_ii(d, a, b, c, x[i + 7], 10, 1126891415)
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95 | c = md5_ii(c, d, a, b, x[i + 14], 15, -1416354905)
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96 | b = md5_ii(b, c, d, a, x[i + 5], 21, -57434055)
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97 | a = md5_ii(a, b, c, d, x[i + 12], 6, 1700485571)
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98 | d = md5_ii(d, a, b, c, x[i + 3], 10, -1894986606)
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99 | c = md5_ii(c, d, a, b, x[i + 10], 15, -1051523)
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100 | b = md5_ii(b, c, d, a, x[i + 1], 21, -2054922799)
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101 | a = md5_ii(a, b, c, d, x[i + 8], 6, 1873313359)
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102 | d = md5_ii(d, a, b, c, x[i + 15], 10, -30611744)
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103 | c = md5_ii(c, d, a, b, x[i + 6], 15, -1560198380)
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104 | b = md5_ii(b, c, d, a, x[i + 13], 21, 1309151649)
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105 | a = md5_ii(a, b, c, d, x[i + 4], 6, -145523070)
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106 | d = md5_ii(d, a, b, c, x[i + 11], 10, -1120210379)
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107 | c = md5_ii(c, d, a, b, x[i + 2], 15, 718787259)
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108 | b = md5_ii(b, c, d, a, x[i + 9], 21, -343485551)
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109 | a = safe_add(a, olda)
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110 | b = safe_add(b, oldb)
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111 | c = safe_add(c, oldc)
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112 | d = safe_add(d, oldd)
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113 | }
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114 | return Array(a, b, c, d)
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115 | }
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116 |
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117 | function md5_cmn (q, a, b, x, s, t) {
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118 | return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s), b)
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119 | }
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120 |
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121 | function md5_ff (a, b, c, d, x, s, t) {
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122 | return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t)
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123 | }
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124 |
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125 | function md5_gg (a, b, c, d, x, s, t) {
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126 | return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t)
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127 | }
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128 |
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129 | function md5_hh (a, b, c, d, x, s, t) {
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130 | return md5_cmn(b ^ c ^ d, a, b, x, s, t)
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131 | }
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132 |
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133 | function md5_ii (a, b, c, d, x, s, t) {
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134 | return md5_cmn(c ^ (b | (~d)), a, b, x, s, t)
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135 | }
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136 |
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137 | function core_hmac_md5 (key, data) {
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138 | var bkey = str2binl(key)
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139 | if (bkey.length > 16) bkey = core_md5(bkey, key.length * chrsz)
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140 | var ipad = Array(16), opad = Array(16)
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141 | for (var i = 0; i < 16; i++) {
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142 | ipad[i] = bkey[i] ^ 0x36363636
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143 | opad[i] = bkey[i] ^ 0x5C5C5C5C
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144 | }
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145 | var hash = core_md5(ipad.concat(str2binl(data)), 512 + data.length * chrsz)
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146 | return core_md5(opad.concat(hash), 512 + 128)
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147 | }
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148 |
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149 | function safe_add (x, y) {
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150 | var lsw = (x & 0xFFFF) + (y & 0xFFFF)
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151 | var msw = (x >> 16) + (y >> 16) + (lsw >> 16)
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152 | return (msw << 16) | (lsw & 0xFFFF)
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153 | }
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154 |
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155 | function bit_rol (num, cnt) {
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156 | return (num << cnt) | (num >>> (32 - cnt))
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157 | }
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158 |
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159 | function str2binl (str) {
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160 | var bin = Array()
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161 | var mask = (1 << chrsz) - 1
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162 | for (var i = 0; i < str.length * chrsz; i += chrsz) bin[i >> 5] |= (str.charCodeAt(i / chrsz) & mask) << (i % 32)
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163 | return bin
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164 | }
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165 |
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166 | function binl2str (bin) {
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167 | var str = ''
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168 | var mask = (1 << chrsz) - 1
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169 | for (var i = 0; i < bin.length * 32; i += chrsz) str += String.fromCharCode((bin[i >> 5] >>> (i % 32)) & mask)
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170 | return str
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171 | }
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172 |
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173 | function binl2hex (binarray) {
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174 | var hex_tab = hexcase ? '0123456789ABCDEF' : '0123456789abcdef'
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175 | var str = ''
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176 | for (var i = 0; i < binarray.length * 4; i++) {
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177 | str += hex_tab.charAt((binarray[i >> 2] >> ((i % 4) * 8 + 4)) & 0xF) + hex_tab.charAt((binarray[i >> 2] >> ((i % 4) * 8)) & 0xF)
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178 | }
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179 | return str
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180 | }
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181 |
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182 | function binl2b64 (binarray) {
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183 | var tab = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
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184 | var str = ''
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185 | for (var i = 0; i < binarray.length * 4; i += 3) {
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186 | var triplet = (((binarray[i >> 2] >> 8 * (i % 4)) & 0xFF) << 16) | (((binarray[i + 1 >> 2] >> 8 * ((i + 1) % 4)) & 0xFF) << 8) | ((binarray[i + 2 >> 2] >> 8 * ((i + 2) % 4)) & 0xFF)
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187 | for (var j = 0; j < 4; j++) {
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188 | if (i * 8 + j * 6 > binarray.length * 32) str += b64pad; else str += tab.charAt((triplet >> 6 * (3 - j)) & 0x3F)
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189 | }
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190 | }
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191 | return str
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192 | }
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193 |
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194 | module.exports = { hex_md5: hex_md5 }
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