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<?php function encrypt_decrypt($action, $string) { $output = false; $encrypt_method = "AES-256-CBC"; $secret_key = 'This is my secret key'; $secret_iv = 'This is my secret iv'; // hash $key = hash('sha256', $secret_key); // iv - encrypt method AES-256-CBC expects 16 bytes - else you will get a warning $iv = substr(hash('sha256', $secret_iv), 0, 16); if( $action == 'encrypt' ) { $output = mcrypt_encrypt($string, $encrypt_method, $key, 0, $iv); $output = base64_encode($output); } else if( $action == 'decrypt' ){ $output = mcrypt_decrypt(base64_decode($string), $encrypt_method, $key, 0, $iv); } return $output; } $plain_txt = "This is my plain text"; echo "Plain Text = $plain_txt\n"; $encrypted_txt = encrypt_decrypt('encrypt', $plain_txt); echo "Encrypted Text = $encrypted_txt\n"; $decrypted_txt = encrypt_decrypt('decrypt', $encrypted_txt); echo "Decrypted Text = $decrypted_txt\n"; if( $plain_txt === $decrypted_txt ) echo "SUCCESS"; else echo "FAILED"; echo "\n";
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 - 8.3.4, 8.3.6
Plain Text = This is my plain text Fatal error: Uncaught Error: Call to undefined function mcrypt_encrypt() in /in/ODMfX:17 Stack trace: #0 /in/ODMfX(30): encrypt_decrypt('encrypt', 'This is my plai...') #1 {main} thrown in /in/ODMfX on line 17
Process exited with code 255.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Plain Text = This is my plain text Fatal error: Uncaught Error: Call to undefined function mcrypt_encrypt() in /in/ODMfX:17 Stack trace: #0 /in/ODMfX(30): encrypt_decrypt('encrypt', 'This is my plai...') #1 {main} thrown in /in/ODMfX on line 17
Process exited with code 255.
Output for 5.1.2 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Plain Text = This is my plain text Fatal error: Call to undefined function mcrypt_encrypt() in /in/ODMfX on line 17
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.1
Plain Text = This is my plain text Fatal error: Call to undefined function hash() in /in/ODMfX on line 11
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Plain Text = This is my plain text Fatal error: Call to undefined function: hash() in /in/ODMfX on line 11
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
Plain Text = This is my plain text Fatal error: Call to undefined function: hash() in /in/ODMfX on line 11
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Plain Text = This is my plain text Fatal error: Call to undefined function: hash() in /in/ODMfX on line 11
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