ci-bonfire /
Sprint
| @@ 250-261 (lines=12) @@ | ||
| 247 | * @param string |
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| 248 | * @return string |
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| 249 | */ |
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| 250 | protected function _xor_decode($string, $key) |
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| 251 | { |
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| 252 | $string = $this->_xor_merge($string, $key); |
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| 253 | ||
| 254 | $dec = ''; |
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| 255 | for ($i = 0, $l = strlen($string); $i < $l; $i++) |
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| 256 | { |
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| 257 | $dec .= ($string[$i++] ^ $string[$i]); |
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| 258 | } |
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| 259 | ||
| 260 | return $dec; |
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| 261 | } |
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| 262 | ||
| 263 | // -------------------------------------------------------------------- |
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| 264 | ||
| @@ 274-284 (lines=11) @@ | ||
| 271 | * @param string |
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| 272 | * @return string |
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| 273 | */ |
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| 274 | protected function _xor_merge($string, $key) |
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| 275 | { |
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| 276 | $hash = $this->hash($key); |
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| 277 | $str = ''; |
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| 278 | for ($i = 0, $ls = strlen($string), $lh = strlen($hash); $i < $ls; $i++) |
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| 279 | { |
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| 280 | $str .= $string[$i] ^ $hash[($i % $lh)]; |
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| 281 | } |
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| 282 | ||
| 283 | return $str; |
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| 284 | } |
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| 285 | ||
| 286 | // -------------------------------------------------------------------- |
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| 287 | ||
