Handling Encrypted Packet Splitting in PHP Swoole about swoole-src

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Strategies for effectively saving and reusing the decryption key obtained from the first packet.

There are different ways. In the old days you can store it to a dynamic property on the Server object; however, since dynamic property is deprecated in PHP, this option is no longer recommended. Another quick way to do it is with Swoole Table or APCu. You can check this examaple on how to use APCu with Swoole.

Best practices for managing the decryption and splitting of encrypted packets in a PHP Swoole environment, especially under the constraints of the MTProto protocol.

If these operations take time and slow down the TCP server, you can add task worker processes to the server and use them to handle CPU-intensive tasks (e.g., decryption/encryption). By doing this, the TCP server can still handle new incoming requests while busy decrypting/encrypting packets for other requests. Here is a quick example. The example uses an HTTP server, but the ideas are of the same.