Re: How to download over https
On 06/18/2016 12:19 PM, Dan Purgert wrote:
> Pascal Hambourg wrote:
>> Le 17/06/2016 21:52, Jochen Spieker a écrit :
>>> Pascal Hambourg:
>>>>
>>>> Hmm. I don't know how SSL works, but HTTPS runs on top of TCP so I doubt
>>>> that it cares about IP packet size. The task of splitting the TCP payload
>>>> stream into IP packets is done by the TCP layer.
>>>
>>> Sure, but if your encryption scheme wastes payload in yout packets you
>>> have more overhead for TCP/IP headers in each packet.
>>
>> Why would encryption increase the payload size ?
>> Disk encryption with dm-crypt does not (except for the LUKS header).
>
> Because most encryption schemes use a standard blocksize (let's say 64
> bytes), and those 'encrypted blocks' do not fit well into the max
> payload size of a packet.
>
> More packets = more overhead.
>
>
Interesting factoid. I'd suspected as much but to read it said
affirmatively... Thanks.
- Leon
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