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<?php // $key должен быть сгенерирован заранее криптографически безопасным образом // например, с помощью openssl_random_pseudo_bytes $plaintext = "данные для шифрования"; $cipher = "aes-128-gcm"; if(exists_function('openssl_get_cipher_methods')){ if (in_array($cipher, openssl_get_cipher_methods())) { $ivlen = openssl_cipher_iv_length($cipher); $iv = openssl_random_pseudo_bytes($ivlen); $ciphertext = openssl_encrypt($plaintext, $cipher, $key, $options=0, $iv, $tag); // сохраняем $cipher, $iv и $tag для дальнейшей расшифровки $original_plaintext = openssl_decrypt($ciphertext, $cipher, $key, $options=0, $iv, $tag); echo $original_plaintext."\n"; }}else{ echo 'function openssl_get_cipher_methods IS NOT'; }
Output for 7.1.25, 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
Fatal error: Uncaught Error: Call to undefined function exists_function() in /in/Wg60T:6 Stack trace: #0 {main} thrown in /in/Wg60T on line 6
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 Fatal error: Uncaught Error: Call to undefined function exists_function() in /in/Wg60T:6 Stack trace: #0 {main} thrown in /in/Wg60T on line 6
Process exited with code 255.

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