nilsteampassnet /
TeamPass
| @@ 93-116 (lines=24) @@ | ||
| 90 | * |
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| 91 | * @return boolean Returns true |
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| 92 | */ |
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| 93 | public function encrypt(&$text) |
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| 94 | { |
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| 95 | $this->operation(parent::ENCRYPT); |
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| 96 | ||
| 97 | for ($i = 1; $i <= 32; ++$i) |
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| 98 | { |
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| 99 | $pos = (4 * $i) - 4; |
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| 100 | $subkey = substr($this->expanded_key, $pos, 4); |
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| 101 | ||
| 102 | if ($i >= 1 && $i <= 8) { |
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| 103 | $this->ruleA($text, $subkey, $i); |
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| 104 | } |
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| 105 | ||
| 106 | if ($i >= 9 && $i <= 16) { |
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| 107 | $this->ruleB($text, $subkey, $i); |
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| 108 | } |
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| 109 | ||
| 110 | if ($i >= 17 && $i <= 24) { |
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| 111 | $this->ruleA($text, $subkey, $i); |
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| 112 | } |
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| 113 | ||
| 114 | if ($i >= 25 && $i <= 32) { |
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| 115 | $this->ruleB($text, $subkey, $i); |
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| 116 | } |
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| 117 | } |
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| 118 | ||
| 119 | return true; |
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| @@ 128-151 (lines=24) @@ | ||
| 125 | * |
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| 126 | * @return boolean Returns true |
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| 127 | */ |
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| 128 | public function decrypt(&$text) |
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| 129 | { |
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| 130 | $this->operation(parent::DECRYPT); |
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| 131 | ||
| 132 | for ($i = 32; $i >= 1; --$i) |
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| 133 | { |
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| 134 | $pos = ($i - 1) * 4; |
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| 135 | $subkey = substr($this->expanded_key, $pos, 4); |
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| 136 | ||
| 137 | if ($i <= 32 && $i >= 25) { |
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| 138 | $this->ruleB($text, $subkey, $i); |
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| 139 | } |
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| 140 | ||
| 141 | if ($i <= 24 && $i >= 17) { |
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| 142 | $this->ruleA($text, $subkey, $i); |
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| 143 | } |
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| 144 | ||
| 145 | if ($i <= 16 && $i >= 9) { |
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| 146 | $this->ruleB($text, $subkey, $i); |
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| 147 | } |
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| 148 | ||
| 149 | if ($i <= 8 && $i >= 1) { |
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| 150 | $this->ruleA($text, $subkey, $i); |
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| 151 | } |
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| 152 | } |
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| 153 | ||
| 154 | return true; |
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