[Cryptography] Any Electrical Engineers here who know about noise filtering?

[Richard Outerbridge]

On 2016-01-03 (3), at 11:58:35, Ron Garret <ron at flownet.com> wrote:
> 
> On Jan 2, 2016, at 6:16 PM, Henry Baker <hbaker1 at pipeline.com> wrote:
> 
>> At 04:47 PM 1/2/2016, Ron Garret wrote:
>>> On Jan 2, 2016, at 6:50 AM, Henry Baker <hbaker1 at pipeline.com> wrote:
>>>> Here's my problem:
>>>> 
>>>> I'm trying to characterize a 1x pad.
>>>> 
>>>> A 1x pad *adds* (modulo, but that shouldn’t matter)

In this context is there any effective difference between

out = pt ^ key

and

out = in 2s_comp key

(where 2s_comp could be (0x200 - pt - key) ?
__outer