Files
docker-php-fpm/php_modules/openssl

openssl

This extension binds functions of OpenSSL library for symmetric and asymmetric encryption and decryption, PBKDF2, PKCS7, PKCS12, X509 and other crypto operations. In addition to that it provides implementation of TLS streams.

Platform Url
PHP.net https://www.php.net/manual/en/book.openssl.php