Online PHP editor | refs for 7f6uc

<?php $res = openssl_pkey_new([ 'digest_alg' => 'sha256', 'private_key_bite' => 2048, 'private_key_type' => OPENSSL_TYPE_RSA ]); openssl_pkey_export($res, $privateKey); $publicKey = openssl_pkey_get_details($res)['key']; $message = 'Prime Numbers Rock!'; $aesKey = random_bytes(32); $keyE = hash_hmac('sha256', 'Encryption Key', $aesKey, true); $keyA = hash_hmac('sha256', 'Authentication Key', $aesKey, true); $iv = random_bytes(12); $ciphertext = $iv . openssl_encrypt($message, 'aes-256-ctr', $keyE, OPENSSL_RAW_DATA, $iv); $mac = hash_hmac('sha256', $ciphertext, $keyA, true); $combined = $mac . $ciphertext; $rsaCipher = ''; openssl_public_encrypt($key, $rsaCihper, $publicKey, OPENSSL_PKCS1_OAEP_PADDING); $sendMe = $rsaCipher . $combined; var_dump(strlen($rsaCipher), strlen($combined), strlen($sendMe));