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Author SHA1 Message Date
Stephan Mueller cde001e4c3 crypto: rng - RNGs must return 0 in success case 
Change the RNGs to always return 0 in success case.

This patch ensures that seqiv.c works with RNGs other than krng. seqiv
expects that any return code other than 0 is an error. Without the
patch, rfc4106(gcm(aes)) will not work when using a DRBG or an ANSI
X9.31 RNG.

Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
 2015-03-09 21:06:18 +11:00
Stephan Mueller aa1b6fbcbe crypto: doc - RNG API documentation 
The API function calls exported by the kernel crypto API for RNGs to
be used by consumers are documented.

Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
 2014-11-13 22:31:38 +08:00
Neil Horman 17f0f4a47d crypto: rng - RNG interface and implementation 
This patch adds a random number generator interface as well as a
cryptographic pseudo-random number generator based on AES.  It is
meant to be used in cases where a deterministic CPRNG is required.

One of the first applications will be as an input in the IPsec IV
generation process.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
 2008-08-29 15:50:04 +10:00