Pure Python Data Mangling or Encrypting
Grant Edwards
invalid at invalid.invalid
Wed Jun 24 17:24:38 EDT 2015
On 2015-06-24, Randall Smith <randall at tnr.cc> wrote:
> On 06/24/2015 01:29 PM, Grant Edwards wrote:
>> On 2015-06-24, Randall Smith <randall at tnr.cc> wrote:
>>> On 06/24/2015 06:36 AM, Steven D'Aprano wrote:
>>>
>>>> I don't understand how mangling the data is supposed to protect the
>>>> recipient. Don't they have the ability unmangle the data, and thus
>>>> expose themselves to whatever nasties are in the files?
>>>
>>> They never look at the data and wouldn't care to unmangle it.
>>
>> I obviously don't "get it". If the recipient is never going look at
>> the data or unmangle it, why not convert every received file to a
>> single null byte? That way you save on disk space as well --
>> especially if you just create links for all files after the initial
>> one. ;)
>
> These are machines storing chunks of other people's data. The data
> owner chunks a file, compresses and encrypts it, then sends it to
> several storage servers. The storage server might be a Raspberry PI
> with a USB disk or a Windows XP machine - I can't know which.
OK. But if the recipient (the server) mangles the data and then never
unmangles or reads the data, there doesn't seem to be any point in
storing it. I must be misunderstanding your statement that the data
is never read/unmangled.
--
Grant Edwards grant.b.edwards Yow! A can of ASPARAGUS,
at 73 pigeons, some LIVE ammo,
gmail.com and a FROZEN DAQUIRI!!
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