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<?php $data = hex2bin("0ce33a87b3e8f3ede03b24d66cf50d88"); $key = "0123456789abcdef"; $size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC); $IV = substr($data, 0, $size); $data = substr($data, $size); $plain = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $key, $data, MCRYPT_MODE_CBC, $IV); printf("IV: %s\nData: %s\n", bin2hex($IV), bin2hex($data)); printf("Plain text: %s (%s)\n", $plain, bin2hex($plain));
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Fatal error: Uncaught Error: Call to undefined function mcrypt_get_iv_size() in /in/J0cnN:5 Stack trace: #0 {main} thrown in /in/J0cnN on line 5
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Fatal error: Call to undefined function mcrypt_get_iv_size() in /in/J0cnN on line 5
Process exited with code 255.

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