08.11.2015 11:58, Vlad Khorsun wrote:
>     Are you going to say that encryption is useless if algorithm is known ?

   No. How did you read that?

>> >     I'd suggest to reserve last four bytes on every page and put CRC32 
>> > checksum there. This
>> >way we can be protected from both wrong decryption and partial hardware 
>> >writes (which has
>> >bigger probability when we have bigger pages).
>     In short - it is too late to change ODS.

   No changes in ODS required. Just a new flag value for page. Older engines 
can read 
summed pages without any problem as well as newer engines can read pages 
without checksum.

-- 
   WBR, SD.

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