On 6/18/2015 11:07 AM, Herbert Xu wrote:
On Thu, Jun 18, 2015 at 10:43:18AM +0300, Ambarus Tudor-Dan-B38632 wrote:
I'm trying to find a method to pass IVs of various lengths to an
algorithm. A particular case would be aes-gcm IV. It can have any
number of bits between 1 and 2^64.
A possible way to do this is to set the ivlen per request. Are there
any (better) ways to do this?
Why would you want do this apart from the fact that your hardware
supports it and you want to export this?
The reason is to cover a wide range of applications. Your question also
applies to the gcm NIST publication.
Users may want to use a crypto module that meets the requirements of
FIPS Pub. for various applications that use variable lengths for IV.
ta
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