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Expolibre-3-www/htdocs/expolibre-2/archives/v2.0/svg-2.0/expo02.svg

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2016-06-24 11:12:10 +02:00
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sodipodi:role="line"> lfsr0 = (bit_reverse[lfsr0&amp;0xff]&lt;&lt;24) | (bit_</tspan><tspan
id="tspan6509"
y="1161.5687"
x="1187.2379"
sodipodi:role="line"> | (bit_reverse[(lfsr0&gt;&gt;16)&amp;0xff]&lt;&lt;8) | bit</tspan><tspan
id="tspan6511"
y="1188.21"
x="1187.2379"
sodipodi:role="line" /><tspan
id="tspan6513"
y="1214.8513"
x="1187.2379"
sodipodi:role="line"> sec+=0x80;</tspan><tspan
id="tspan6515"
y="1241.4927"
x="1187.2379"
sodipodi:role="line"> combined = 0;</tspan><tspan
id="tspan6517"
y="1268.134"
x="1187.2379"
sodipodi:role="line"> while (sec != end) {</tspan><tspan
id="tspan6519"
y="1294.7753"
x="1187.2379"
sodipodi:role="line"> o_lfsr1 = lfsr1_bits0[lfsr1_hi] ^ lfsr1_bit</tspan><tspan
id="tspan6521"
y="1321.4166"
x="1187.2379"
sodipodi:role="line"> lfsr1_hi = lfsr1_lo&gt;&gt;1;</tspan><tspan
id="tspan6523"
y="1348.058"
x="1187.2379"
sodipodi:role="line"> lfsr1_lo = ((lfsr1_lo&amp;1)&lt;&lt;8) ^ o_lfsr1;</tspan><tspan
id="tspan6525"
y="1374.6993"
x="1187.2379"
sodipodi:role="line"> o_lfsr1 = bit_reverse[o_lfsr1];</tspan><tspan
id="tspan6527"
y="1401.3406"
x="1187.2379"
sodipodi:role="line" /><tspan
id="tspan6529"
y="1427.9819"
x="1187.2379"
sodipodi:role="line"> /*o_lfsr0 = (lfsr0&gt;&gt;7)^(lfsr0&gt;&gt;10)^(lfsr0&gt;&gt;1</tspan><tspan
id="tspan6531"
y="1454.6232"
x="1187.2379"
sodipodi:role="line"> o_lfsr0 = (((((((lfsr0&gt;&gt;8)^lfsr0)&gt;&gt;1)^lfsr0)</tspan><tspan
id="tspan6533"
y="1481.2646"
x="1187.2379"
sodipodi:role="line"> lfsr0 = (lfsr0&gt;&gt;8)|(o_lfsr0&lt;&lt;24);</tspan><tspan
id="tspan6535"
y="1507.9059"
x="1187.2379"
sodipodi:role="line" /><tspan
id="tspan6537"
y="1534.5472"
x="1187.2379"
sodipodi:role="line"> combined += o_lfsr0 + (byte)~o_lfsr1;</tspan><tspan
id="tspan6539"
y="1561.1885"
x="1187.2379"
sodipodi:role="line"> *sec++ = csstab1[*sec] ^ (combined&amp;0xff);</tspan><tspan
id="tspan6541"
y="1587.8298"
x="1187.2379"
sodipodi:role="line"> combined &gt;&gt;= 8;</tspan><tspan
id="tspan6543"
y="1614.4712"
x="1187.2379"
sodipodi:role="line"> }</tspan><tspan
id="tspan6545"
y="1641.1125"
x="1187.2379"
sodipodi:role="line">}</tspan></text>
<text
xml:space="preserve"
style="font-size:22.2010994px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:condensed;text-align:start;line-height:120.00000477%;writing-mode:lr-tb;text-anchor:start;fill:#ffffff;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;font-family:DejaVu Sans Mono"
x="1810.0511"
y="1066.3475"
id="text6551"
sodipodi:linespacing="120%"
transform="matrix(0.9102714,-0.3959484,0,1.0985735,0,0)"><tspan
sodipodi:role="line"
id="tspan6553"
x="1810.0511"
y="1066.3475">void css_descramble(byte *sec,byte *key)</tspan><tspan
sodipodi:role="line"
x="1810.0511"
y="1092.9889"
id="tspan6555">{</tspan><tspan
sodipodi:role="line"
x="1810.0511"
y="1119.6302"
id="tspan6557"> unsigned int lfsr1_lo,lfsr1_hi,lfsr0,combined;</tspan><tspan
sodipodi:role="line"
x="1810.0511"
y="1146.2715"
id="tspan6559"> unsigned char o_lfsr0, o_lfsr1;</tspan><tspan
sodipodi:role="line"
x="1810.0511"
y="1172.9128"
id="tspan6561"> unsigned char *end = sec + 0x800;</tspan><tspan
sodipodi:role="line"
x="1810.0511"
y="1199.5541"
id="tspan6563">#define SALTED(i) (key[i] ^ sec[0x54 + (i)])</tspan><tspan
sodipodi:role="line"
x="1810.0511"
y="1226.1955"
id="tspan6565" /><tspan
sodipodi:role="line"
x="1810.0511"
y="1252.8368"
id="tspan6567"> lfsr1_lo = SALTED(0) | 0x100;</tspan><tspan
sodipodi:role="line"
x="1810.0511"
y="1279.4781"
id="tspan6569"> lfsr1_hi = SALTED(1);</tspan><tspan
sodipodi:role="line"
x="1810.0511"
y="1306.1194"
id="tspan6571" /><tspan
sodipodi:role="line"
x="1810.0511"
y="1332.7607"
id="tspan6573"> lfsr0 = ((SALTED(4) &lt;&lt; 17) | (SALTED(3) &lt;&lt; 9)</tspan><tspan
sodipodi:role="line"
x="1810.0511"
y="1359.4021"
id="tspan6575"> lfsr0 = (bit_reverse[lfsr0&amp;0xff]&lt;&lt;24) | (bit_</tspan><tspan
sodipodi:role="line"
x="1810.0511"
y="1386.0434"
id="tspan6577"> | (bit_reverse[(lfsr0&gt;&gt;16)&amp;0xff]&lt;&lt;8) | bit</tspan><tspan
sodipodi:role="line"
x="1810.0511"
y="1412.6847"
id="tspan6579" /><tspan
sodipodi:role="line"
x="1810.0511"
y="1439.326"
id="tspan6581"> sec+=0x80;</tspan><tspan
sodipodi:role="line"
x="1810.0511"
y="1465.9673"
id="tspan6583"> combined = 0;</tspan><tspan
sodipodi:role="line"
x="1810.0511"
y="1492.6087"
id="tspan6585"> while (sec != end) {</tspan><tspan
sodipodi:role="line"
x="1810.0511"
y="1519.25"
id="tspan6587"> o_lfsr1 = lfsr1_bits0[lfsr1_hi] ^ lfsr1_bit</tspan><tspan
sodipodi:role="line"
x="1810.0511"
y="1545.8913"
id="tspan6589"> lfsr1_hi = lfsr1_lo&gt;&gt;1;</tspan><tspan
sodipodi:role="line"
x="1810.0511"
y="1572.5326"
id="tspan6591"> lfsr1_lo = ((lfsr1_lo&amp;1)&lt;&lt;8) ^ o_lfsr1;</tspan><tspan
sodipodi:role="line"
x="1810.0511"
y="1599.1739"
id="tspan6593"> o_lfsr1 = bit_reverse[o_lfsr1];</tspan><tspan
sodipodi:role="line"
x="1810.0511"
y="1625.8153"
id="tspan6595" /><tspan
sodipodi:role="line"
x="1810.0511"
y="1652.4566"
id="tspan6597"> /*o_lfsr0 = (lfsr0&gt;&gt;7)^(lfsr0&gt;&gt;10)^(lfsr0&gt;&gt;1</tspan><tspan
sodipodi:role="line"
x="1810.0511"
y="1679.0979"
id="tspan6599"> o_lfsr0 = (((((((lfsr0&gt;&gt;8)^lfsr0)&gt;&gt;1)^lfsr0)</tspan><tspan
sodipodi:role="line"
x="1810.0511"
y="1705.7392"
id="tspan6601"> lfsr0 = (lfsr0&gt;&gt;8)|(o_lfsr0&lt;&lt;24);</tspan><tspan
sodipodi:role="line"
x="1810.0511"
y="1732.3805"
id="tspan6603" /><tspan
sodipodi:role="line"
x="1810.0511"
y="1759.0219"
id="tspan6605"> combined += o_lfsr0 + (byte)~o_lfsr1;</tspan><tspan
sodipodi:role="line"
x="1810.0511"
y="1785.6632"
id="tspan6607"> *sec++ = csstab1[*sec] ^ (combined&amp;0xff);</tspan><tspan
sodipodi:role="line"
x="1810.0511"
y="1812.3045"
id="tspan6609"> combined &gt;&gt;= 8;</tspan><tspan
sodipodi:role="line"
x="1810.0511"
y="1838.9458"
id="tspan6611"> }</tspan><tspan
sodipodi:role="line"
x="1810.0511"
y="1865.5871"
id="tspan6613">}</tspan></text>
<text
transform="matrix(0.9102714,-0.3959484,0,1.0985735,0,0)"
sodipodi:linespacing="120%"
id="text6615"
y="1290.8223"
x="2432.8645"
style="font-size:22.2010994px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:condensed;text-align:start;line-height:120.00000477%;writing-mode:lr-tb;text-anchor:start;fill:#ffffff;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;font-family:DejaVu Sans Mono"
xml:space="preserve"><tspan
y="1290.8223"
x="2432.8645"
id="tspan6617"
sodipodi:role="line">void css_descramble(byte *sec,byte *key)</tspan><tspan
id="tspan6619"
y="1317.4636"
x="2432.8645"
sodipodi:role="line">{</tspan><tspan
id="tspan6621"
y="1344.1049"
x="2432.8645"
sodipodi:role="line"> unsigned int lfsr1_lo,lfsr1_hi,lfsr0,combined;</tspan><tspan
id="tspan6623"
y="1370.7462"
x="2432.8645"
sodipodi:role="line"> unsigned char o_lfsr0, o_lfsr1;</tspan><tspan
id="tspan6625"
y="1397.3875"
x="2432.8645"
sodipodi:role="line"> unsigned char *end = sec + 0x800;</tspan><tspan
id="tspan6627"
y="1424.0289"
x="2432.8645"
sodipodi:role="line">#define SALTED(i) (key[i] ^ sec[0x54 + (i)])</tspan><tspan
id="tspan6629"
y="1450.6702"
x="2432.8645"
sodipodi:role="line" /><tspan
id="tspan6631"
y="1477.3115"
x="2432.8645"
sodipodi:role="line"> lfsr1_lo = SALTED(0) | 0x100;</tspan><tspan
id="tspan6633"
y="1503.9528"
x="2432.8645"
sodipodi:role="line"> lfsr1_hi = SALTED(1);</tspan><tspan
id="tspan6635"
y="1530.5941"
x="2432.8645"
sodipodi:role="line" /><tspan
id="tspan6637"
y="1557.2355"
x="2432.8645"
sodipodi:role="line"> lfsr0 = ((SALTED(4) &lt;&lt; 17) | (SALTED(3) &lt;&lt; 9)</tspan><tspan
id="tspan6639"
y="1583.8768"
x="2432.8645"
sodipodi:role="line"> lfsr0 = (bit_reverse[lfsr0&amp;0xff]&lt;&lt;24) | (bit_</tspan><tspan
id="tspan6641"
y="1610.5181"
x="2432.8645"
sodipodi:role="line"> | (bit_reverse[(lfsr0&gt;&gt;16)&amp;0xff]&lt;&lt;8) | bit</tspan><tspan
id="tspan6643"
y="1637.1594"
x="2432.8645"
sodipodi:role="line" /><tspan
id="tspan6645"
y="1663.8008"
x="2432.8645"
sodipodi:role="line"> sec+=0x80;</tspan><tspan
id="tspan6647"
y="1690.4421"
x="2432.8645"
sodipodi:role="line"> combined = 0;</tspan><tspan
id="tspan6649"
y="1717.0834"
x="2432.8645"
sodipodi:role="line"> while (sec != end) {</tspan><tspan
id="tspan6651"
y="1743.7247"
x="2432.8645"
sodipodi:role="line"> o_lfsr1 = lfsr1_bits0[lfsr1_hi] ^ lfsr1_bit</tspan><tspan
id="tspan6653"
y="1770.366"
x="2432.8645"
sodipodi:role="line"> lfsr1_hi = lfsr1_lo&gt;&gt;1;</tspan><tspan
id="tspan6655"
y="1797.0074"
x="2432.8645"
sodipodi:role="line"> lfsr1_lo = ((lfsr1_lo&amp;1)&lt;&lt;8) ^ o_lfsr1;</tspan><tspan
id="tspan6657"
y="1823.6487"
x="2432.8645"
sodipodi:role="line"> o_lfsr1 = bit_reverse[o_lfsr1];</tspan><tspan
id="tspan6659"
y="1850.29"
x="2432.8645"
sodipodi:role="line" /><tspan
id="tspan6661"
y="1876.9313"
x="2432.8645"
sodipodi:role="line"> /*o_lfsr0 = (lfsr0&gt;&gt;7)^(lfsr0&gt;&gt;10)^(lfsr0&gt;&gt;1</tspan><tspan
id="tspan6663"
y="1903.5726"
x="2432.8645"
sodipodi:role="line"> o_lfsr0 = (((((((lfsr0&gt;&gt;8)^lfsr0)&gt;&gt;1)^lfsr0)</tspan><tspan
id="tspan6665"
y="1930.214"
x="2432.8645"
sodipodi:role="line"> lfsr0 = (lfsr0&gt;&gt;8)|(o_lfsr0&lt;&lt;24);</tspan><tspan
id="tspan6667"
y="1956.8553"
x="2432.8645"
sodipodi:role="line" /><tspan
id="tspan6669"
y="1983.4966"
x="2432.8645"
sodipodi:role="line"> combined += o_lfsr0 + (byte)~o_lfsr1;</tspan><tspan
id="tspan6671"
y="2010.1379"
x="2432.8645"
sodipodi:role="line"> *sec++ = csstab1[*sec] ^ (combined&amp;0xff);</tspan><tspan
id="tspan6673"
y="2036.7792"
x="2432.8645"
sodipodi:role="line"> combined &gt;&gt;= 8;</tspan><tspan
id="tspan6675"
y="2063.4206"
x="2432.8645"
sodipodi:role="line"> }</tspan><tspan
id="tspan6677"
y="2090.0619"
x="2432.8645"
sodipodi:role="line">}</tspan></text>
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<text
xml:space="preserve"
style="font-size:45.33333206px;font-style:normal;font-variant:normal;font-weight:bold;font-stretch:condensed;text-align:start;line-height:110.00000238%;writing-mode:lr-tb;text-anchor:start;fill:#2b5385;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;font-family:DejaVu Sans"
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sodipodi:linespacing="110%"><tspan
sodipodi:role="line"
id="tspan22312"
x="192.31998"
y="63.754261">Libres...</tspan><tspan
sodipodi:role="line"
x="192.31998"
y="113.62093"
id="tspan16649"> et beaucoup plus !</tspan></text>
<text
xml:space="preserve"
style="font-size:18px;font-style:normal;font-variant:normal;font-weight:bold;font-stretch:condensed;text-align:start;line-height:100%;writing-mode:lr-tb;text-anchor:start;fill:#000000;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;font-family:DejaVu Sans"
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sodipodi:linespacing="100%"><tspan
sodipodi:role="line"
id="tspan3287"
x="175.45149"
y="289.57867">&gt; La définition générale...</tspan></text>
<text
xml:space="preserve"
style="font-size:17.49733925px;font-style:normal;font-variant:normal;font-weight:bold;font-stretch:condensed;text-align:start;line-height:100%;writing-mode:lr-tb;text-anchor:start;fill:#000000;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;font-family:DejaVu Sans"
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sodipodi:linespacing="100%"
transform="scale(0.9971228,1.0028855)"><tspan
sodipodi:role="line"
id="tspan3291"
x="176.01056"
y="526.11743">&gt; ... Et celle de son initiateur :</tspan></text>
<text
xml:space="preserve"
style="font-size:45.33333206px;font-style:normal;font-variant:normal;font-weight:bold;font-stretch:condensed;text-align:start;line-height:110.00000238%;writing-mode:lr-tb;text-anchor:start;fill:#2b5385;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;font-family:DejaVu Sans"
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transform="matrix(0,-1,1,0,0,0)"><tspan
sodipodi:role="line"
id="tspan2308"
x="-872.08661"
y="100.22507">Informatique : vive la liberté !</tspan></text>
<text
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<text
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style="font-size:8px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:condensed;text-align:center;line-height:100%;writing-mode:lr-tb;text-anchor:middle;opacity:0.6;fill:#000000;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;font-family:DejaVu Sans"
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id="tspan2488">http://www.expolibre.org/</tspan> — Copyright 2008 <tspan
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id="tspan4567">April</tspan> — Sous licence <tspan
style="font-weight:bold;fill:#000000;fill-opacity:1"
id="tspan4569">CC</tspan>-BY-SA : Parternité - Partage des Conditions Initiales à l'Identique</tspan></text>
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id="flowPara16758">Avec le logiciel libre, nous encourageons tout le monde à <flowSpan
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id="flowPara2451">Pour qu'il puisse être utilisé par un tiers, il faut donc que son ou ses auteurs cèdent explicitement certains droits : c'est l'objet du contrat de <flowSpan
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style="font-style:italic"><flowSpan
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id="flowSpan16877">«</flowSpan> ... un programme qui n'est <flowSpan
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sodipodi:role="line"
style="letter-spacing:-0.12460833">&gt; Pourquoi refuser le logiciel non libre :</tspan></text>
<text
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style="font-style:italic">En détail :</tspan></text>
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style="font-size:16px;font-style:normal;font-variant:normal;font-weight:bold;font-stretch:condensed;text-align:center;line-height:100%;writing-mode:lr-tb;text-anchor:middle;fill:#000000;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;font-family:DejaVu Sans"
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sodipodi:role="line">Code source</tspan><tspan
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sodipodi:role="line"
id="tspan16905">et code binaire</tspan></text>
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id="flowSpan16919">recette</flowSpan> de cuisine, tandis que le code binaire est comme le plat préparé, prêt à être mangé.</flowPara></flowRoot> <flowRoot
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style="font-weight:bold"
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style="font-size:12px;font-style:normal;font-variant:normal;font-weight:bold;font-stretch:condensed;text-align:start;line-height:100%;writing-mode:lr-tb;text-anchor:start;fill:#000000;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;font-family:DejaVu Sans"
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sodipodi:role="line">&gt; Ouverts</tspan></text>
<text
xml:space="preserve"
style="font-size:12px;font-style:normal;font-variant:normal;font-weight:bold;font-stretch:condensed;text-align:start;line-height:100%;writing-mode:lr-tb;text-anchor:start;fill:#000000;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;font-family:DejaVu Sans"
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x="548.07001"
y="827.91302">&gt; Fermés</tspan></text>
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id="flowPara2809">En utilisant des formats de fichier ouverts, vous gardez la <flowSpan
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id="flowPara2861">À l'inverse, l'objectif des formats de fichier fermés est de vous rendre <flowSpan
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id="flowSpan17123">priva-teur</flowSpan>.</flowPara><flowPara
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style="font-weight:bold"
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id="flowPara2420" /><flowPara
id="flowPara17001">De plus, vous ne pouvez échanger vos données qu'avec les utilisa-teurs équipés du <flowSpan
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sodipodi:role="line">Pratique :</tspan></text>
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x="627.00311"
y="656.90021">Formats ouverts</tspan><tspan
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x="627.00311"
y="672.90021"
id="tspan16995">et formats fermés</tspan></text>
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