Decrypt empty string
git-svn-id: https://adminer.svn.sourceforge.net/svnroot/adminer/trunk@1290 7c3ca157-0c34-0410-bff1-cbf682f78f5c
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@ -43,6 +43,9 @@ function xxtea_mx($z, $y, $sum, $k) {
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* @return string binary cipher
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*/
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function encrypt_string($str, $key) {
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if ($str == "") {
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return "";
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}
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$v = str2long($str, true);
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$n = count($v) - 1;
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$z = $v[$n];
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@ -72,11 +75,11 @@ function encrypt_string($str, $key) {
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* @return string plain-text password
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*/
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function decrypt_string($str, $key) {
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$v = str2long($str, false);
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$n = count($v) - 1;
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if (!$n) {
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if ($str == "") {
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return "";
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}
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$v = str2long($str, false);
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$n = count($v) - 1;
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$z = $v[$n];
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$y = $v[0];
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$q = floor(6 + 52 / ($n + 1));
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