root / trunk / web / dojo / dojox / encoding / crypto / SimpleAES.js @ 9
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1 | 9 | andrej.cim | /*
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2 | Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
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3 | Available via Academic Free License >= 2.1 OR the modified BSD license.
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4 | see: http://dojotoolkit.org/license for details
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5 | */
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6 | |||
7 | |||
8 | if(!dojo._hasResource["dojox.encoding.crypto.SimpleAES"]){ |
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9 | dojo._hasResource["dojox.encoding.crypto.SimpleAES"]=true; |
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10 | dojo.provide("dojox.encoding.crypto.SimpleAES");
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11 | dojo.require("dojox.encoding.base64");
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12 | dojo.require("dojox.encoding.crypto._base");
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13 | (function(){
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14 | var _1=[99,124,119,123,242,107,111,197,48,1,103,43,254,215,171,118,202,130,201,125,250,89,71,240,173,212,162,175,156,164,114,192,183,253,147,38,54,63,247,204,52,165,229,241,113,216,49,21,4,199,35,195,24,150,5,154,7,18,128,226,235,39,178,117,9,131,44,26,27,110,90,160,82,59,214,179,41,227,47,132,83,209,0,237,32,252,177,91,106,203,190,57,74,76,88,207,208,239,170,251,67,77,51,133,69,249,2,127,80,60,159,168,81,163,64,143,146,157,56,245,188,182,218,33,16,255,243,210,205,12,19,236,95,151,68,23,196,167,126,61,100,93,25,115,96,129,79,220,34,42,144,136,70,238,184,20,222,94,11,219,224,50,58,10,73,6,36,92,194,211,172,98,145,149,228,121,231,200,55,109,141,213,78,169,108,86,244,234,101,122,174,8,186,120,37,46,28,166,180,198,232,221,116,31,75,189,139,138,112,62,181,102,72,3,246,14,97,53,87,185,134,193,29,158,225,248,152,17,105,217,142,148,155,30,135,233,206,85,40,223,140,161,137,13,191,230,66,104,65,153,45,15,176,84,187,22]; |
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15 | var _2=[[0,0,0,0],[1,0,0,0],[2,0,0,0],[4,0,0,0],[8,0,0,0],[16,0,0,0],[32,0,0,0],[64,0,0,0],[128,0,0,0],[27,0,0,0],[54,0,0,0]]; |
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16 | function _3(_4,w){ |
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17 | var Nb=4; |
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18 | var Nr=w.length/Nb-1; |
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19 | var _5=[[],[],[],[]];
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20 | for(var i=0;i<4*Nb;i++){ |
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21 | _5[i%4][Math.floor(i/4)]=_4[i]; |
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22 | } |
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23 | _5=_6(_5,w,0,Nb);
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24 | for(var _7=1;_7<Nr;_7++){ |
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25 | _5=_8(_5,Nb); |
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26 | _5=_9(_5,Nb); |
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27 | _5=_a(_5,Nb); |
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28 | _5=_6(_5,w,_7,Nb); |
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29 | } |
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30 | _5=_8(_5,Nb); |
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31 | _5=_9(_5,Nb); |
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32 | _5=_6(_5,w,Nr,Nb); |
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33 | var _b=new Array(4*Nb); |
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34 | for(var i=0;i<4*Nb;i++){ |
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35 | _b[i]=_5[i%4][Math.floor(i/4)]; |
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36 | } |
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37 | return _b;
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38 | }; |
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39 | function _8(s,Nb){ |
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40 | for(var r=0;r<4;r++){ |
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41 | for(var c=0;c<Nb;c++){ |
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42 | s[r][c]=_1[s[r][c]]; |
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43 | } |
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44 | } |
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45 | return s;
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46 | }; |
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47 | function _9(s,Nb){ |
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48 | var t=new Array(4); |
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49 | for(var r=1;r<4;r++){ |
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50 | for(var c=0;c<4;c++){ |
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51 | t[c]=s[r][(c+r)%Nb]; |
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52 | } |
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53 | for(var c=0;c<4;c++){ |
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54 | s[r][c]=t[c]; |
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55 | } |
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56 | } |
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57 | return s;
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58 | }; |
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59 | function _a(s,Nb){ |
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60 | for(var c=0;c<4;c++){ |
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61 | var a=new Array(4); |
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62 | var b=new Array(4); |
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63 | for(var i=0;i<4;i++){ |
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64 | a[i]=s[i][c]; |
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65 | b[i]=s[i][c]&128?s[i][c]<<1^283:s[i][c]<<1; |
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66 | } |
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67 | s[0][c]=b[0]^a[1]^b[1]^a[2]^a[3]; |
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68 | s[1][c]=a[0]^b[1]^a[2]^b[2]^a[3]; |
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69 | s[2][c]=a[0]^a[1]^b[2]^a[3]^b[3]; |
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70 | s[3][c]=a[0]^b[0]^a[1]^a[2]^b[3]; |
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71 | } |
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72 | return s;
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73 | }; |
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74 | function _6(_c,w,_d,Nb){ |
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75 | for(var r=0;r<4;r++){ |
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76 | for(var c=0;c<Nb;c++){ |
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77 | _c[r][c]^=w[_d*4+c][r];
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78 | } |
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79 | } |
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80 | return _c;
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81 | }; |
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82 | function _e(_f){ |
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83 | var Nb=4; |
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84 | var Nk=_f.length/4; |
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85 | var Nr=Nk+6; |
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86 | var w=new Array(Nb*(Nr+1)); |
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87 | var _10=new Array(4); |
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88 | for(var i=0;i<Nk;i++){ |
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89 | var r=[_f[4*i],_f[4*i+1],_f[4*i+2],_f[4*i+3]]; |
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90 | w[i]=r; |
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91 | } |
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92 | for(var i=Nk;i<(Nb*(Nr+1));i++){ |
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93 | w[i]=new Array(4); |
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94 | for(var t=0;t<4;t++){ |
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95 | _10[t]=w[i-1][t];
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96 | } |
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97 | if(i%Nk==0){ |
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98 | _10=_11(_12(_10)); |
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99 | for(var t=0;t<4;t++){ |
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100 | _10[t]^=_2[i/Nk][t]; |
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101 | } |
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102 | }else{
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103 | if(Nk>6&&i%Nk==4){ |
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104 | _10=_11(_10); |
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105 | } |
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106 | } |
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107 | for(var t=0;t<4;t++){ |
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108 | w[i][t]=w[i-Nk][t]^_10[t]; |
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109 | } |
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110 | } |
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111 | return w;
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112 | }; |
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113 | function _11(w){ |
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114 | for(var i=0;i<4;i++){ |
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115 | w[i]=_1[w[i]]; |
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116 | } |
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117 | return w;
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118 | }; |
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119 | function _12(w){ |
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120 | w[4]=w[0]; |
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121 | for(var i=0;i<4;i++){ |
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122 | w[i]=w[i+1];
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123 | } |
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124 | return w;
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125 | }; |
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126 | function _13(_14,_15,_16){ |
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127 | if(!(_16==128||_16==192||_16==256)){ |
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128 | return ""; |
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129 | } |
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130 | var _17=_16/8; |
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131 | var _18=new Array(_17); |
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132 | for(var i=0;i<_17;i++){ |
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133 | _18[i]=_15.charCodeAt(i)&255;
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134 | } |
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135 | var key=_3(_18,_e(_18));
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136 | key=key.concat(key.slice(0,_17-16)); |
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137 | var _19=16; |
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138 | var _1a=new Array(_19); |
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139 | var _1b=(new Date()).getTime(); |
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140 | for(var i=0;i<4;i++){ |
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141 | _1a[i]=(_1b>>>i*8)&255; |
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142 | } |
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143 | for(var i=0;i<4;i++){ |
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144 | _1a[i+4]=(_1b/4294967296>>>i*8)&255; |
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145 | } |
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146 | var _1c=_e(key);
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147 | var _1d=Math.ceil(_14.length/_19);
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148 | var _1e=new Array(_1d); |
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149 | for(var b=0;b<_1d;b++){ |
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150 | for(var c=0;c<4;c++){ |
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151 | _1a[15-c]=(b>>>c*8)&255; |
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152 | } |
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153 | for(var c=0;c<4;c++){ |
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154 | _1a[15-c-4]=(b/4294967296>>>c*8); |
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155 | } |
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156 | var _1f=_3(_1a,_1c);
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157 | var _20=b<_1d-1?_19:(_14.length-1)%_19+1; |
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158 | var ct=""; |
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159 | for(var i=0;i<_20;i++){ |
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160 | var _21=_14.charCodeAt(b*_19+i);
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161 | var _22=_21^_1f[i];
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162 | ct+=((_22<16)?"0":"")+_22.toString(16); |
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163 | } |
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164 | _1e[b]=ct; |
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165 | } |
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166 | var _23=""; |
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167 | for(var i=0;i<8;i++){ |
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168 | _23+=((_1a[i]<16)?"0":"")+_1a[i].toString(16); |
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169 | } |
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170 | return _23+" "+_1e.join(" "); |
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171 | }; |
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172 | function _24(s){ |
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173 | var ret=[];
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174 | s.replace(/(..)/g,function(str){ |
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175 | ret.push(parseInt(str,16));
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176 | }); |
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177 | return ret;
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178 | }; |
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179 | function _25(_26,_27,_28){ |
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180 | if(!(_28==128||_28==192||_28==256)){ |
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181 | return ""; |
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182 | } |
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183 | var _29=_28/8; |
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184 | var _2a=new Array(_29); |
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185 | for(var i=0;i<_29;i++){ |
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186 | _2a[i]=_27.charCodeAt(i)&255;
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187 | } |
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188 | var _2b=_e(_2a);
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189 | var key=_3(_2a,_2b);
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190 | key=key.concat(key.slice(0,_29-16)); |
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191 | var _2c=_e(key);
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192 | _26=_26.split(" ");
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193 | var _2d=16; |
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194 | var _2e=new Array(_2d); |
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195 | var _2f=_26[0]; |
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196 | _2e=_24(_2f); |
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197 | var _30=new Array(_26.length-1); |
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198 | for(var b=1;b<_26.length;b++){ |
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199 | for(var c=0;c<4;c++){ |
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200 | _2e[15-c]=((b-1)>>>c*8)&255; |
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201 | } |
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202 | for(var c=0;c<4;c++){ |
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203 | _2e[15-c-4]=((b/4294967296-1)>>>c*8)&255; |
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204 | } |
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205 | var _31=_3(_2e,_2c);
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206 | var pt=""; |
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207 | var tmp=_24(_26[b]);
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208 | for(var i=0;i<tmp.length;i++){ |
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209 | var _32=_26[b].charCodeAt(i);
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210 | var _33=tmp[i]^_31[i];
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211 | pt+=String.fromCharCode(_33); |
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212 | } |
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213 | _30[b-1]=pt;
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214 | } |
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215 | return _30.join(""); |
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216 | }; |
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217 | function _34(str){ |
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218 | return str.replace(/[\0\t\n\v\f\r\xa0!-]/g,function(c){ |
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219 | return "!"+c.charCodeAt(0)+"!"; |
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220 | }); |
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221 | }; |
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222 | function _35(str){ |
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223 | return str.replace(/!\d\d?\d?!/g,function(c){ |
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224 | return String.fromCharCode(c.slice(1,-1)); |
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225 | }); |
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226 | }; |
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227 | dojox.encoding.crypto.SimpleAES=new (function(){ |
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228 | this.encrypt=function(_36,key){ |
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229 | return _13(_36,key,256); |
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230 | }; |
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231 | this.decrypt=function(_37,key){ |
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232 | return _25(_37,key,256); |
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233 | }; |
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234 | })(); |
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235 | })(); |
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236 | } |