It'll have to be in the next version after 5.6.1, because I just spent
several days testing 5.6.1 on a large number of platforms, and if I add a
new feature I'll have go through that again.
--------------------------------------------------
From: "Jeffrey Walton" <[email protected]>
Sent: Saturday, August 07, 2010 2:11 PM
To: "Crypto++ Users" <[email protected]>
Subject: Crypto++ 5.6.1 and XTS-AES
Hi Wei,
XTS-AES was approved by NIST in January 2010 [1]. The mode is special
because it is tuned for storage devices, using fixed length “data
units” of up to 2^20 bytes. I know I'm not the only fellow who has
found a need for encrypting in block sizes tuned for disk sectors or
memory page sizes.
On the down side, XTS is a confidentiality only mode, so a way to pair
both XTS with a HMAC or CMAC (without the need for a second pass over
the data) would be greatly appreciated ;) I suspect the single pass
can be achieved with a ChannelSwitch, but I need to verify it is the
case.
Is there any chance XTS will make its way into 5.6.1?
Jeff
[1] http://csrc.nist.gov/publications/nistpubs/800-38E/nist-sp-800-38E.pdf
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