Re: [RFC PATCH v2] crypto: Add IV generation algorithms

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi Milan,

Thank you for the reply.

On 13 December 2016 at 15:31, Milan Broz <gmazyland@xxxxxxxxx> wrote:

> I really do not think the disk encryption key management should be moved
> outside of dm-crypt. We cannot then change key structure later easily.

Yes, I agree. but the key selection based on sector number restricts the
option of having a larger block size used for encryption.

>> +     unsigned int key_size;
>> +     unsigned int key_extra_size;
>> +     unsigned int key_parts;      /* independent parts in key buffer */
>
> ^^^ these key sizes you probably mean by key management.

Yes, I mean splitting the keys into subkeys based on the keycount
parameter (as mentioned below) to the dm-crypt.

cipher[:keycount]-mode-iv:ivopts
aes:2-cbc-essiv:sha256

> It is based on way how the key is currently sent into kernel
> (one hexa string in ioctl that needs to be split) and have to be changed in future.

-Binoy
--
To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Linux RAID Wiki]     [ATA RAID]     [Linux SCSI Target Infrastructure]     [Linux Block]     [Linux IDE]     [Linux SCSI]     [Linux Hams]     [Device Mapper]     [Device Mapper Cryptographics]     [Kernel]     [Linux Admin]     [Linux Net]     [GFS]     [RPM]     [git]     [Yosemite Forum]


  Powered by Linux