Messages in this thread | | | Date | Fri, 30 May 2014 17:05:48 +0800 | From | Herbert Xu <> | Subject | Re: [PATCH v7 0/6] SP800-90A Deterministic Random Bit Generator |
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On Mon, May 26, 2014 at 07:42:57AM +0200, Stephan Mueller wrote: > > A second aspect is the implementation of the stdrng. Currently, the offered > patch does not include the stdrng selection. I am currently working on the > completion of the addition of the stdrng selection to the offered patch. My > idea is the following: currently, all DRBG types are registered with their own > cra_name. However, there shall be one particular DRBG registered twice. When > registering the instance again, the cra_name shall be "stdrng". In addition, > if the kernel command line contains fips=1, the cra_priority of that stdrng > should be set to 300. That implies that when the kernel resolves the stdrng, > it resolves to get_random_bytes in normal mode, but to the stdrng DRBG in FIPS > mode.
Just have all of them register as stdrng with differing priorities. We already have a user-space interface to change priorities.
Cheers, -- Email: Herbert Xu <herbert@gondor.apana.org.au> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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