linux-kernel - Re: [PATCH v7 1/6] SP800-90A Deterministic Random Bit Generator

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Date:	Wed, 21 May 2014 22:17:30 +0200
From:	Stephan Mueller <smueller@...onox.de>
To:	linux-kernel@...r.kernel.org
Cc:	linux-crypto@...r.kernel.org, aquini@...hat.com,
	jeremy.wayne.powell@...il.com, clemens@...isch.de,
	pwalten@....ibm.com, joe@...ches.com
Subject: Re: [PATCH v7 1/6] SP800-90A Deterministic Random Bit Generator

Am Mittwoch, 21. Mai 2014, 06:18:58 schrieb Stephan Mueller:

Hi,

> +/*
> + * Tests as defined in 11.3.2 in addition to the cipher tests: testing
> + * of the error handling.
> + *
> + * Note: testing of failing seed source as defined in 11.3.2 is not
> applicable + * as seed source of get_random_bytes does not fail.
> + *
> + * Note 2: There is no sensible way of testing the reseed counter
> + * enforcement, so skip it.
> + */
> +static inline int __init drbg_healthcheck_sanity(void)
> +{
> +#ifdef CONFIG_CRYPTO_FIPS
> +	unsigned int len = 0;

This variable must be signed int as otherwise the BUG_ON checks will always 
fail. This error is a leftover from the return code change of drbg_generate(). 
It will be fixed in the next release.

Ciao
Stephan
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