Pure Python Data Mangling or Encrypting

Randall Smith randall at tnr.cc
Mon Jun 29 16:52:37 EDT 2015


On 06/27/2015 01:50 PM, Steven D'Aprano wrote:
> On Sun, 28 Jun 2015 03:08 am, Randall Smith wrote:
>
>> Though I didn't mention it in the description, the storage server is
>> appending a CRC32 checksum for routine integrity checks.  So by the time
>> the data hits the disk, it will have added both a 256 byte translation
>> table and a 4 byte checksum.
>
>
> http://stackoverflow.com/questions/1515914/crc32-collision
>
>
>
>


Not sure why you posted the link.  The crc32 checksum is just to check 
for possible filesystem corruption.  The system does periodic data 
corruption checks.  BTRFS uses crc32 checksums also.  Please explain.

-Randall




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