Digital signature is a typical application of hash algorithm in cryptography. By turning off the digital signature, you can turn off websites that you don't want to open, which is for websites that use digital signatures.
Didn't you catch all the bags? Of course, it is in the payload of the data packet, but of course it is a string of garbled codes because it is the result of encryption and hashing.
If you mean the packet encapsulation format, the analysis software should be able to express it. It's too difficult for you to ask me. A little lack of research ... if you can't even analyze software, let alone me. ..